Hitachi RCD-2.5FSN2 Service Manual Download Page 273

Page: 273 / 429

8 Troubleshooting

261

SMGB0077 rev.0 - 01/2013

Code

number

Category

Abnormality

Cause

Pressure

Cooling overload (possible activation of high

pressure device)

O.U. pipe thermistor temp. is higher than 55 ºC and the

compressor top temp. is higher than 95 ºC, O.U. protection

device is activated.

Heating overload (high-pressure device may

be activated)

If I.U. freeze protection thermistor temp. is higher than

55 ºC and compressor top temp. is higher than 95 ºC, O.U.

protection device is activated.

Activation of the safety device from com-

pression ratio decrease

Abnormal compress (Compressor, Inverter damage)

Activation of the safety device from excessi-

vely high suction pressure

Overload during cooling, high temperature with heating,

loked expansion valve

Activation of the safety device from excessi-

vely high discharge pressure

Overload (obstruction of HEX, short circuit) mixture of inert

gas

Activation of the safety device from exces-

sively low suction pressure (protection from

vacuum operation)

Shortage or leakage of refrigerant, piping clogging, expan

sion valve close-locked, fan motor locked.

Inverter

Abnormality of current sensor for inverter

Failure of DIP-IPM, heat exchanger clogged, locked com

pressor, EVI/EVO failure or overcharge.

Abnormality of Current Sensor for Inverter

Failure of control PCB, inverter module.

Protection activation of inverter module

Inverter module abnormality.

Failure of compressor, clogging of heat exchanger.

Inverter fin temperature increase

Abnormal inverter fin thermistor, clogging of heat exchan

ger, abnormal outdoor fan.

Inverter Module abnormality

Failure of inverter module.

Outdoor fan

Fan Motor abnormality

Disconnected wire of incorrect wiring between control PCB

and inverter PCB.
Incorrect wiring or fan motor abnormality.

Indoor unit

number setting

Incorrect setting of the unit and the refrige-

rant cycle number.

Over 64 indoor units setting by number or indoor unit

address.

Incorrect indoor unit connection number

setting

There are more than 17 units not corresponding to H-Link

II connected to one system

Compressor

Compressor protection

Failure of compressor.

Summary of Contents for RCD-2.5FSN2

Page 1: ...RCI RCIM RCD RPC RPI RPIM Service Manual INDOOR UNITS SYSTEM FREE SERIES Complementary Systems FSN H 2 3 4 E M i DU RPK RPF RPFI KPI DX Interface ...

Page 2: ......

Page 3: ...7 8 9 10 11 12 In dex General information Unit installation Piping work and refrigerant charge Electrical wiring Control system Optional functions Test run Troubleshooting Spare parts Servicing Electrical checks of the main parts Maintenance notes ...

Page 4: ...SMGB0077 rev 0 01 2013 IV Index ...

Page 5: ...tte compact 28 2 2 1 Accessories supplied with the unit 28 2 2 2 Unit installation 28 2 2 3 Accessories supplied with the air panel P N23WAM 31 2 2 4 Air panel installation 31 2 3 RCD 2 way cassette 36 2 3 1 Accessories supplied with the unit 36 2 3 2 Unit installation 36 2 3 3 Accessories supplied with the air panel P N23DWA P N46DWA 40 2 3 4 Air panel installation 40 2 4 RPC Ceiling 43 2 4 1 Acc...

Page 6: ...es 93 3 2 2 Pipe connection 94 3 2 3 Insulation of multikits and or branches 94 3 3 General instructions on the installation of refrigerant pipes 95 3 4 Copper refrigerant pipe 96 3 4 1 Three principles on work with refrigerant pipes 96 3 4 2 General information on copper refrigeration pipes 96 3 4 3 Diameters of the copper refrigeration pipes 97 3 4 4 Preparing and cutting copper refrigeration pi...

Page 7: ...58 4 2 2 Functions of the DIP switches and RSW switches 160 4 3 Wiring diagrams for indoor units and complementary systems 167 4 3 1 Wiring diagrams for indoor units 167 4 3 2 Wiring diagrams for complementary systems 178 5 Control system 181 5 1 Device control system 182 5 1 1 Printed circuit boards for RCI FSN3 indoor units 184 5 1 2 Printed circuit boards for RCI 1 0 6 0 FSN3Ei 185 5 1 3 Printe...

Page 8: ...dure using the remote control 246 7 2 1 PC ART remote control 246 7 2 2 PC ARF remote control 247 7 3 Test procedure using the wireless remote control 250 7 3 1 PC LH3A PC LH3B wireless remote control 250 7 4 Test run check list 251 8 Troubleshooting 253 8 1 Self check of the indoor unit PCB for RPK only Preliminary information 254 8 2 Electronic expansion valve check procedure 255 8 3 Procedure f...

Page 9: ...x cover 317 10 2 4 Removal of the optional air panel 318 10 2 5 Removal of the fan duct and motor 319 10 2 6 Bellmouth removal 319 10 2 7 Removal of the printed circuit board PCB 320 10 2 8 Removal of the drain pan 321 10 2 9 Removal of the drain mechanism 321 10 2 10 Removal of the float switch 322 10 2 11 Removal of the thermistors from the liquid and gas pipes 322 10 2 12 Removal of the electro...

Page 10: ... 348 10 6 1 Removal of the electrical box 348 10 6 2 Removal of the inlet and outlet air thermistors 349 10 6 3 Removal of the thermistors from the liquid and gas pipes 350 10 6 4 Removal of the fan parts 350 10 6 5 Removal of the drain mechanism 351 10 6 6 Removal of the float switch 352 10 6 7 Removal of the air filter 352 10 7 RPI 8 0 10 0 FSN3E Ducted indoor unit 353 10 7 1 Removal of the elec...

Page 11: ...val of the fan motor 390 10 10 6 Removal of the printed circuit board PCB 391 10 10 7 Removal of the thermistors from the liquid and gas piping 392 10 11 KPI 393 10 11 1 System description 393 10 11 2 Structure and part names 393 10 12 DX Interface 394 10 12 1 Structure and part names 394 10 12 2 Removal of the electrical components 394 11 Electrical checks of the main parts 395 11 1 Thermistor 39...

Page 12: ...TCGB0077 rev 0 01 2013 XII Index ...

Page 13: ... friendly units 2 1 2 Applied symbols 3 1 3 Product guide 4 1 3 1 Classification of indoor unit models 4 1 3 2 Classification of KPI models 4 1 3 3 Classification of DX Interface models 4 1 3 4 Product guide indoor units 5 1 3 5 Product guide complementary systems 9 1 3 6 Accessory code list 10 G ener al info rmati on 1 ...

Page 14: ...in this manual No type of modification must be made to the equipment without prior written authorisation from the manufacturer 1 1 1 Introduction HITACHI offers the SYSTEM FREE range of indoor units the main advantage of which is that they can be combined with UTOPIA and SET FREE series outdoor units This eliminates the need to duplicate models of indoor units and reduces stock Outdoor units SYSTE...

Page 15: ...o your safety and phy sical wellbeing Not taking these instructions into account could lead to serious very serious or even fatal injuries to you and others in the proximities of the unit In the texts following the danger symbol you can also find information on safe procedures during unit installation C AUTION The text following this symbol contains information and instructions relating directly t...

Page 16: ... M Made in Malaysia Made in Japan i Version up RCI only DU Drain Up RPIM only XXX X X FS N H X X i DU 1 3 2 Classification of KPI models KPI energy heat recovery unit Position separating hyphen fixed Capacity m3 h 250 500 800 1000 1500 2000 3000 2 1 230V 50Hz E energy recovery H Heat recovery X Active Energy recovery DX section 3 series E Made in Europe KPI Y YY 2 Y 3 E 1 3 3 Classification of DX ...

Page 17: ...278013 RCI 2 0FSN3Ei 7E403016 RCI 2 0FSN3 60278121 RCIM 2 0FSN2 60278014 RCI 2 5FSN3Ei 7E403017 RCI 2 5FSN3 60278122 RCI 3 0FSN3Ei 7E403018 RCI 3 0FSN3 60278123 RCI 4 0FSN3Ei 7E403020 RCI 4 0FSN3 60278124 RCI 5 0FSN3Ei 7E403021 RCI 5 0FSN3 60278125 RCI 6 0FSN3Ei 7E403022 RCI 6 0FSN3 60278126 Panels Optional P N23NA 70531000 P AP160NA1 60297215 P N23WAM 60197160 P AP160NAE With motion sensor 602972...

Page 18: ...2 60278030 RCD 2 0FSN2 60278031 RPC 2 0FSN2E 7E440003 RCD 2 5FSN2 60278032 RPC 2 5FSN2E 7E440004 RCD 3 0FSN2 60278033 RPC 3 0FSN2E 7E440005 RCD 4 0FSN2 60278034 RPC 4 0FSN2E 7E440007 RCD 5 0FSN2 60278035 RPC 5 0FSN2E 7E440008 RPC 6 0FSN2E 7E440009 Panels Optional P N23DNA 60297211 P N46DNA 60297212 N O TE The RCD models must be used in combination with the panels indicated above ...

Page 19: ...24013 RPIM 0 8FSN4E 7E430013 RPIM 0 8FSN4E DU 7E431013 RPI 1 0FSN4E 7E424014 RPIM 1 0FSN4E 7E430014 RPIM 1 0FSN4E DU 7E431014 RPI 1 5FSN4E 7E424015 RPIM 1 5FSN4E 7E430015 RPIM 1 5FSN4E DU 7E431015 RPI 2 0FSN4E 7E424016 RPI 2 5FSN4E 7E424017 RPI 3 0FSN4E 7E424018 RPI 4 0FSN4E 7E424020 RPI 5 0FSN4E 7E424021 RPI 6 0FSN4E 7E424022 RPI 8 0FSN3E 7E424010 RPI 10 0FSN3E 7E424011 ...

Page 20: ...I 1 0FSN2E 7E460001 RPK 1 0FSN3M 60278147 RPK 1 0FSNH3M 60278155 RPF 1 5FSN2E 7E450002 RPFI 1 5FSN2E 7E460002 RPK 1 5FSN3M 60278148 RPK 1 5FSNH3M 60278156 RPF 2 0FSN2E 7E450003 RPFI 2 0FSN2E 7E460003 RPK 2 0FSN3M 60278149 RPF 2 5FSN2E 7E450004 RPFI 2 5FSN2E 7E460004 RPK 2 5FSN3M 60278150 RPK 3 0FSN3M 60278151 RPK 4 0FSN3M 60278152 EV 1 5N1 1 60921791 N OT E 1 For RPK 0 8 1 5 FSNH3M models only Sin...

Page 21: ... 502H3E 70602101 KPI 502X3E 70602201 KPI 802E3E 70602002 KPI 802H3E 70602102 KPI 802X3E 70602202 KPI 1002E3E 70602003 KPI 1002H3E 70602103 KPI 1002X3E 70602203 KPI 1502E3E 70602004 KPI 1502H3E 70602104 KPI 2002E3E 70602005 KPI 2002H3E 70602105 DX Interface Complementary systems Control box Expansion valve box DX Interface Unit Code EXV 2 0E1 7E610900 EXV 2 5E1 7E610901 EXV 3 0E1 7E610902 EXV 4 0E1...

Page 22: ...ing filter 60199793 F 46L4 D 60199794 F 71L D1 60291757 F 160L D1 60291758 F 160L K Long life filter 60291760 PDF 23C3 Duct connecting flange 60199795 PDF 46C3 60199796 OACI 232 Outdoor air inlet kit 60199797 OACI 160K2 60291761 PD 75 Outdoor air inlet kit 60199798 PD 75A 60291763 PI 23LS5 3 way outlet parts 60199799 PI 160LS1 60291756 TKCI 232 T shaped duct connection kit 60199801 TKCI 160K 60291...

Page 23: ...4004 E 302SN2 70524005 E 52XN2 70525000 E 102XN2 70525001 E 162XN2 70525002 E 202XN2 70525003 E 242XN2 70525004 E 322XN2 70525005 MH 84AN Distributor SET FREE 70522007 MH 108AN 70522008 MH 108XN 70523108 SLT 30 200 L600 Noise damper 70550200 SLT 30 250 L600 70550201 SLT 30 300 L600 70550202 SLT 30 355 L600 70550203 HEF 252 High efficiency filter 70552201 HEF 502 70552202 HEF 802 70552203 HEF 1002 ...

Page 24: ......

Page 25: ... 2 way cassette 36 2 3 1 Accessories supplied with the unit 36 2 3 2 Unit installation 36 2 3 3 Accessories supplied with the air panel P N23DWA P N46DWA 40 2 3 4 Air panel installation 40 2 4 RPC Ceiling 43 2 4 1 Accessories supplied with the unit 43 2 4 2 Unit installation 43 2 4 3 Suspension bracket installation 44 2 4 4 Indoor unit installation 45 2 5 RPI M Ducted indoor unit 0 8 6 0 FSN 4 E D...

Page 26: ...hange in the air outlet direction RPFI units 65 2 8 4 RPF Optional PC ART remote control location 65 2 9 KPI energy heat recovery unit and KPI active unit 66 2 9 1 Accessories supplied with the unit 66 2 9 2 Unit installation 66 2 9 3 Duct connection 68 2 10 DX Interface 70 2 10 1 Accesories supplied with the unit 70 2 10 2 Unit installation 70 2 10 3 Mounting method 71 2 10 4 Thermistor installat...

Page 27: ...4 For fitting paper pattern Washer with insulation M10 4 For unit installation Washer M10 4 Drain hose 1 For drain hose connection Wire clamp 1 Pipe insulation 1 For refrigerant piping connection Pipe insulation 1 Cord band 2 For fixing remote control switch wiring lo uver sensor and insulation of piping Cord band 6 Insulation 5Tx50x200 1 For covering wiring connection Insulation 5Tx100x200 1 For ...

Page 28: ...SN3Ei P N23NA 2 1 2 Unit installation Initial checks Install the indoor unit with a proper clearance around it paying careful attention of installation direction for the piping wiring and maintenance working space as shown below Provide a service access door near the unit piping connection area on the ceiling 1 1 2 3 Check space between ceiling and false ceiling is enough as indicated below Check ...

Page 29: ...or steel beam 150 to 160mm Insert 100 to 150Kg Concrete Steel Anchor Bolt W3 8 or M10 Suspension Bolt w3 8 or M10 I Beam Mounting of indoor unit Mount the nuts and the washers to the suspension bolts Put the washer so that the surface with insulation can faces downwards as shown below Suspension Bolts field supplied mm Nut field supplied Washer with Insulation accessory Suspension Bracket attached...

Page 30: ...to the inner side of the opening of the ceiling Attach this side of the checking pattern to the lower side of the unit Indoor unit Attach this side of the checking pattern to the ceiling panel Checking pattern Check the height of the ceiling at each corner of the unit Check the dimension of opening at each side of the unit Attach this side of the checking pat tern to the outer side of the unit Cei...

Page 31: ...ay detect as absence in the case that the indoor unit with the motion sensor is installed to a high ceiling higher than 4m even if someone is in a room 2 1 3 Accessories supplied with the air panel P AP160NA1 P AP160NAE Check that the following accessories are supplied with the unit note Please contact your HITACHI distributor if any of the accessories has not been supplied with the unit Accessory...

Page 32: ...ately 45 from the air panel surface After lifting the air inlet grille keeping it inclined draw the air inlet grille forward Remove the filament tape 4 portions fixing the air filter P AP160NAE P AP160NA1 4 5 4 5 Knob Air inlet grille Corner pocket cover 4 portions Air panel Supporting string 2 Lift the grille keeping it inclined 3 Draw the grille towards the open space after lifting N ote Perform...

Page 33: ...gerant pipe connections Indoor unit Air panel U shaped hook Fixing plate 5 Tighten the long screws until touching the stopper to the fixing plate Check to ensure that the distance between the fixing plate undersurface and the corner panel undersurface is 26mm 6 When tightening the long screws to prevent air leakage and to be no gap between the false ceiling surface and the indoor unit the inner ci...

Page 34: ... from drain pan Do not turn the air louver by hand If moved the louver mechanism would be damaged Attachment of Corner Pocket Cover Attach the corner pocket covers after the air panel is mounted completely a Catch the band at the rear side of the corner pocket cover onto the projection at the air panel as shown A B Projection Fixing hook Band Fixing hook b Insert and push the fixing hooks 2 portio...

Page 35: ...tra length of the relay wire by the cord band and store it at inside the ceiling d Draw out the relay wire from the corner pocket of the air panel Connect the wiring for motion sensor at the corner pocket cover to the relay connector After connecting cover the relay connector connection by the wiring cover and fix the wiring cover by the plastic bands e Catch the band at the rear side of the corne...

Page 36: ...iring connection of the air panel attach the air inlet grille Perform the attaching work in the re verse procedure of removing 2 1 5 Accessories supplied with the air panel P N23NA Check that the following accessories are supplied with the unit N O TE Please contact your HITACHI distributor if any of the accessories has not been supplied with the unit Accessory Appearance Quantity Purpose Long bol...

Page 37: ... the securing mechanism will break Air panel installation Remove the hood from the 4 corners Press the securing tabs in the direction of the arrow following the order a b and c and lift the corner of the cover Then move it in direction d press the L type hook and remove the cover Pull the U shaped hook in 2 positions located on the side of the indoor unit downwards Adjust the corner of the indoor ...

Page 38: ...ween the indoor unit and the air panel Gaps may cause air leaks or condensation Secure the corner covers after fitting the air panel a Attach the tab at the rear of the corner cover to the panel pin b Attach the L shaped stop located on the rear of the corner cover to the square hole in the air panel Considerations following air panel installation Tighten the long bolts appropriately Otherwise ins...

Page 39: ...ed screwdriver into the groove 1 and turn it gently downwards Perform the same operation in grooves 2 and 3 Lift the receiver and once the securing tabs 3 positions have been removed remove it Coin or slotted screwdriver Corner position dent part Electrical connection of the air panel C AUTION Switch off the power supply to the unit before coupling the connectors otherwise the automatic louver wil...

Page 40: ...on big size 1 For the refrigerant pipe connection Insulation small size 1 Insulation 5t 1 For drain hose insulation Cord clamp 6 For fixing refrigerant piping insulation 2 2 2 Unit installation Initial checks Check that there is enough space between the false ceiling and the ceiling of the room to house the unit Its height must be less than the measured distance Consult the corresponding chapter o...

Page 41: ...t the ceiling surface where the air panel is to be installed is completely horizontal Installation Cut the area of the unit in the false ceiling and reinforce the opening made Install the M10 3 8 suspension bolts depending on the type of surface Concrete beams 1 150 to 160 mm 2 Steel 3 Anchor bolt W3 8 or M10 4 Concrete 5 Insert 100 to 150 kg 1 2 3 4 5 Steel beams Wooden beams RRGHQ HDP RRGHQ DU P...

Page 42: ...s already installed install and prepare the pipes and cables on the indoor unit before lifting it C AUTION Before lifting the unit prepare any necessary means ladders scaffolding elevator platform etc and check that the current safety regulations in the place where the installation is taking place are met Check that the lifting work can be carried out without the risk of injuries to you or others ...

Page 43: ... a thread locking product to the bolts and nuts to prevent them from loosening Otherwise abnormal noise may be caused by mechanical vibrations and the indoor unit may become loose 2 2 3 Accessories supplied with the air panel P N23WAM Check that the following accessories are supplied with the unit N OT E Please contact your HITACHI distributor if any of the accessories has not been supplied with t...

Page 44: ...or the securing mechanism will break Air panel installation Remove the screw located next to mark a Press the securing tabs in the direction of the arrow b Remove the corner cover by pulling it in direction c Thread the long screw to secure the air panel temporarily Adjust the corner of the indoor unit at the refrigerant connection part to the position marked as PIPE SIDE Attach the air panel to t...

Page 45: ...asket 6 Fixing sheet for air panel panel side 7 Fixing screw for air panel 8 Air panel 9 Fase ceiling 2 3 2 4 5 6 7 8 9 Check that there are no gaps in the touching surface between the indoor unit and the air panel Gaps may cause air leaks or condensation Secure the corner covers after fitting the air panel a Attach the tab at the rear of the corner cover to the panel pin Pin Band b Attach the L s...

Page 46: ... are seen around it Use long bolts and nuts for readjustment as indicated below Once the air panel is installed the final height of the indoor unit can be adjusted using a wrench through the corner cover Excessively adjusting the height leads to condensation leaks from the drain pan C A UTION Do not move the air louver by hand The drive mechanism may be damaged Louver Air leakage Smudge Dewing No ...

Page 47: ... otherwise the automatic louver will not work The following connector is used with the air panel see from the lower surface of the air panel without the air inlet grille Connect the connectors for auto swing motor Low voltage 5pin white Connector for auto swing motor Air panel side Connector for auto swing motor Indoor unit side Without air inlet grille Electrical box ...

Page 48: ...spension Wire clamp 1 For the drain hose connection Insulation 26ID x 100 mm 1 For the refrigerant pipe connection Insulation 26ID x 85 mm 1 Cord band 8 To attach the refrigerant pipe insulation Insulation 5Tx50x200 1 For covering wiring connection Applicable air panel Indoor unit Applicable air panel RCD 1 0 3 0 P N23DNA RCD 4 0 5 0 P N26DNA 2 3 2 Unit installation Initial checks Check that there...

Page 49: ... is completely horizontal Check that the drain hose can be installed maintaining the necessary down slope Installation Cut the area of the unit in the false ceiling and reinforce the opening made Install the M10 3 8 suspension bolts depending on the type of surface Model A Opening B Suspension RCD 1 0 1060 890 RCD 1 5 RCD 2 0 RCD 2 5 RCD 3 0 RCD 4 0 1620 1450 RCD 5 0 1 Suspension 2 Panel 3 Wireles...

Page 50: ...to their nuts and washers on the other side Fit the washers with the insulation facing downwards as shown in the figure Bear in mind the position of the side for pipe connection before lifting the indoor unit Where a false ceiling is already installed install and prepare the pipes and cables on the indoor unit before lifting it C AUTION Before lifting the unit prepare any necessary means ladders s...

Page 51: ...oor unit and the opening in the false ceiling Adjust the indoor unit to the correct position using the pattern and checking pattern for the installation For panelled ceilings 1 Indoor unit 2 Attach this side of the checking pattern to the inner side of the opening of the ceiling 3 Attach this side of the checking pattern to the lower side of the unit 4 Attach this side of the checking pattern to t...

Page 52: ...re supplied with the unit N O TE Please contact your HITACHI distributor if any of the accessories has not been supplied with the unit Accessory Appearance Quantity Purpose Long screw A M6 x 50 4 For panel fixing Long screw B M6 x 30 2 For panel fixing only for air panel P N46DNA 2 3 4 Air panel installation C AUTION Take care while the air panel is unpacked and protect it by placing it on insulat...

Page 53: ...hook cables Check that the position of the electrical junction box on the indoor unit coincides with the position of the air panel wiring outlet Position the panel on the indoor unit and secure using the long screws supplied C A U TION To avoid damaging the panel the long screws securing it are fitted with stops to stop tightening at the set position Where the air panel does not reach the ceiling ...

Page 54: ...power supply to the unit before coupling the connectors otherwise the automatic louver will not work The following connector is used with the air panel see from the lower surface of the air panel without the air inlet grille Couple the connectors as indicated in the figure view of the electrical box from above ...

Page 55: ...l 5T x 200 x 200mm 1 For the drain hose connection Sealing plate 0 8T 118 42mm 1 To seal the die cut hole 2 4 2 Unit installation Initial checks Check that there is enough space around the unit Consult the corresponding chapter of the Technical Catalogue for information on the unit measurements Before starting installation plan the direction of the pipes and wiring required Also bear in mind that ...

Page 56: ... two positions Model A B C D E F RPC 2 0FSN2E 1094 920 1010 150 220 255 RPC 2 5 3 0 FSN2E 1314 1140 1230 150 220 255 RPC 4 0FSN2E 1314 1140 1230 110 280 235 RPC 5 0 6 0 FSN2E 1574 1400 1490 110 280 235 Select the suspension bracket system in line with installation requirements N O TE Installation position a is recommended for a partially hidden installation Fit the suspension brackets on the sling...

Page 57: ... the indoor unit Top side of unit Air inlet grille Hooking part C A U TION Do not move the air louver by hand The drive mechanism may be damaged Suspended unit installation C A U TION Before lifting the unit prepare any necessary means ladders scaffolding elevator platform etc and check that the current safety regulations in the place where the installation is taking place are met Check that the l...

Page 58: ... lift the unit Model A RPC 2 0FSN2E 1560 RPC 2 5 4 0 FSN2E 1780 RPC 5 0 6 0 FSN2E 2040 Hang the indoor unit on the suspension brackets inserting the unit assembly bolts on the notches in the brackets Fit the nuts flat washers and spring washers supplied to secure the indoor unit Insulate the top of the unit that will be hidden in the ceiling Gaps may cause air leaks or condensation Model A RPC 2 0...

Page 59: ...cessory Appearance Quantity Purpose Wire clamp 1 For the drain hose connection only for RPI 0 8 1 5 FSN4E Drain hose 1 For drain connection only for RPIM 2 5 2 Unit installation Initial checks Check that there is enough space around the unit Consult the corresponding chapter of the Technical Manual for information on the unit measurements RPI Ducted indoor unit 0 8 1 5 FSN4E RPI Ducted indoor unit...

Page 60: ...sion bracket 3 Left side 4 Inlet air 5 Washer 6 Nut 7 Right side service cover Thread on the nuts and fit the washers for all the bolts as shown in the figure Fit two suspension brackets onto the nut and washer of each bolt starting on one side Check that the nuts and washers are correctly secured with the suspension bracket retainers and fit the brackets onto their nuts and washers on the other s...

Page 61: ...adhesive supplied C A U TION Completely cover the unit with a sheet of plastic to protect it during installation work 2 5 3 Air duct connection N OT E Use field supplied flexible ducts to avoid abnormal acoustic vibrations RPI units are supplied with a standard air filter on the suction side This filter is supplied for cases where no suction duct is applied or when the duct is very short Secure th...

Page 62: ...ion of the air inlet on RPIM 0 8 1 5 FSN2E DU models the position of the air inlet and therefore its direction can be modified by changing the position of the rear cover as shown in the illustrations 1 2 4 3 1 Initial position of the air inlet factory supplied 2 Remove the front and rear covers and the electrical box from the unit 3 Switch the position of the front and rear covers Change the posit...

Page 63: ...position of the air inlet and therefore its direction can be modified by changing the position of the rear cover as shown in the illustrations 1 A 2 B 3 4 1 Initial position A of the air inlet factory supplied 2 Air inlet and bottom cover away from the unit 3 Interchange air inlet and cover position 4 Final position B of the air inlet ...

Page 64: ...Piping adapter Ø9 52 x Ø12 7 For 10 HP only 2 6 2 Unit installation Initial checks RPI Ducted indoor unit 8 0 10 0 FSN3E 1 Rear 2 Unit inspection and maintenance access 3 Front side Check that there is enough space around the unit Consult the corresponding chapter of the Technical Catalogue for information on the unit measurements Before starting installation plan the direction of the pipes and wi...

Page 65: ...ce are met Check that the lifting work can be carried out without the risk of injuries to you or others in the surrounding area Request the assistance of another person to lift the unit Lift the unit carefully Check that the condensate discharge system in the indoor unit works correctly To do so check the level of the drain pan using a spirit level or a clear flexible pipe full of water The side o...

Page 66: ...ct to the outsides of the hoses supplied with the unit Bear in mind the following instructions depending on the installation type 1 Where the suction duct is not used keep the standard air filter 2 Where the suction duct is used fit the air filter at the suction duct inlet point removing the standard air filter from the unit This air filter must be field supplied or a factory adapted one must be u...

Page 67: ...ation pipe 1 1 For insulating refrigerant piping 2 7 2 Unit installation Initial checks Check that there is enough space around the unit Consult the corresponding chapter of the Technical Manual for information on the unit measurements Before starting installation plan the direction of the pipes and wiring required Also bear in mind that there must be enough space around the unit for installation ...

Page 68: ... be evenly distributed over the surface RPK 0 8 1 5 FSN H 3M Fixing screw for suspension bracket Suspension bracket Hole for pipings and wirings Fix the suspension bracket by more than 4 fixing screws RPK 2 0 4 0 FSN3M Suspension bracket Fixing screw for suspension bracket Hole for pipings and wirings Fix the suspension bracket by more than 5 fixing screws Check that the mounting bracket is instal...

Page 69: ...dders scaffolding elevator platform etc and check that the current safety regulations in the place where the installation is taking place are met Check that the lifting work can be carried out without the risk of injuries to you or others in the surrounding area Request the assistance of another person to lift the unit Lift the unit carefully Hang the indoor unit on the mounting bracket keeping it...

Page 70: ... flat panel frontward while the right arm shaft is slightly expanded outward Flat panel Remove this part from the hole Expand the shaft toward arrow di rection Attaching flat panel for RPK 0 8 1 5 FSN H 3M Insert completely the left and right arm shafts of flat panel into the holes along the guide at the front panel After the flat panel is attached completely insert the catches for air filter to f...

Page 71: ...ghtly pushed inward Flat panel Push the shaft toward arrow di rection Remove this part from the hole Attaching flat panel for RPK 2 0 4 0 FSN3M Insert completely the left and right arm shafts of flat panel into the holes along the guide at the front panel After the flat panel is attached completely insert the catches for air filter to fix Hole Guide at front panel Front panel Flat panel C A U TION...

Page 72: ...e For RPK 0 8 1 0 FSNH3M units it is recommended to connect the piping at the right rear side of the body to avoid the sound from the refrigerant running through RPK 1 5FSN H 3M unit suspension bracket φ65 φ65 100 100 150 230 239 300 45 45 136 107 5 101 900 255 136 382 14 45 12 25 13 263 14 12 13 55 25 107 6 169 175 66 18 46 17 40 25 36 42 6 11 39 11 39 32 13 60 22 28 22 45 32 32 42 28 22 28 22 31...

Page 73: ... 250 100 105 87 660 105 100 560 㸰㸮㸳 20 40 20 20 㸳㸮㸲㸳㸮㸲 300 300 60 1150 42 333 1140 5 517 434 141 42 5 φ80 φ80 200 100 100 Left side of service space Min Min Exterior contour for indoor unit Suspension bracket Left rear side hole for pipings and wirings Right rear side hole for pipings and wirings Min Right side of service space ...

Page 74: ...ent screw 4 To adjust the flat level of the unit Philips head screw 2 For PC ART 2 8 2 Unit installation Initial checks Check that there is enough space around the unit Consult the corresponding chapter of the Technical Catalogue for information on the unit measurements RPF Floor type 1 0 2 5 FSN2E RPFI Floor concealed type 1 0 2 5 FSN2E 1 Vertical air outlet 1 Horizontal air outlet Before startin...

Page 75: ...tallation and maintenance work Model A mm B mm RPF RPFI RPF RPFI RPF I 1 0FSN2E 630 620 1479 1359 RPF I 1 5FSN2E RPF I 2 0FSN2E 1729 1609 RPF I 2 5FSN2E Check that the drain hose can be installed maintaining the necessary down slope Installation C A U TION The place where the indoor unit is to be installed must be a flat surface with enough space to fully house the unit The weight of the unit must...

Page 76: ... than the opposite side Secure the base plate and the rear plate of the unit using field supplied bolts and screws N O TE RPFI units remove the electrical wiring box when fitting the installation bolts RPF units carry out the above operation after removing the front and side covers of the unit RPFI unit install the optional air outlet grille as indicated in the figure N O TE Condensation may be ac...

Page 77: ...on requirements as shown in the illustration 1 Lift air outlet A 2 Turn the air outlet on itself until it is opposite its initial position 3 Tilt the air outlet so that the nozzle is facing forwards 4 Refit air outlet A 1 2 2 3 4 A 2 8 4 RPF Optional PC ART remote control location It is possible to install the PC ART remote control below the plastic cover as shown in the figure ...

Page 78: ...tion Abs Rubber 4 Rubber duct joint 4 2 9 2 Unit installation Initial checks KPI 252 2002 E3E KPI 502 2002 H3E energy heat recovery unit KPI 502 1002 X3E active unit mm Check that there is enough space around the unit Consult the corresponding chapter of the Technical Catalogue for information on the unit measurements Before starting installation plan the direction of the pipes and wiring required...

Page 79: ...at exchanger is used is shown in the table below as an example at an outdoor air temperature of 0 C 5 C and 10 C and an indoor air temperature of 30 C Where the indoor or outdoor air humidity is higher condensation may accumulate and flow outside the unit The method for raising the temperature of A outdoor temperature must be determined according to current law in the place where the unit is insta...

Page 80: ...o do so check the level of the drain pan using a spirit level or a clear flexible pipe full of water The side of the unit on which the drain hose is located must be around 5 mm lower than the opposite side For KPI 502 1002 X3E The unit should be installed so that one side of the unit is slightly 1º for KPI 502 1002 X3E lower than the other side in order to avoid the incorrect position of the drain...

Page 81: ...nt the formation of condensation Secure the flexible air duct to the outsides of the hoses supplied with the unit Do not install ducts along complex layouts or sharp bends The volume of air may be reduced leading to abnormal circulation noises Particularly avoid the following situations A extremely tight bends B multiple bends C bends next to the outlet D extreme reduction of the diameter of the c...

Page 82: ...xpansion valve box Therefore utilize the insulation on the outer surface of the expansion valve box Installation Location 1 Installation methods are selectable according to the dimension of the false ceiling 2 Keep the distance between the unit or device with heat exchanger and the expansion valve box for the piping length up to 5m Also the elevation difference between the unit or device with heat...

Page 83: ...alve box cover to avoid any liquid filtration and accumulation Minimum sizes mm 2 10 4 Thermistor installation Liquid and gas pipes thermistor Two type thermistors are supplied inside the control box The purpose and identification of each one is as follow Item PCB socket Thermistor connector color PCB socket number Thermistor length mm Liquid pipe thermistor Black THM 3 650 Gas pipe thermistor Yel...

Page 84: ...it completely with insulation like cork tape or pipe insulation depending on the location Replace them if damaged during maintenance work Thermistor installation example 1 Liquid gas pipe thermistor factory supplied 2 Thermistor holder field supplied 3 Thermistor lead wire field supplied 4 Insulation field supplied 1 2 3 4 C AUTION The thermistor must be installed properly in order to avoid water ...

Page 85: ... not long enough please make sure that the length extension is properly done avoiding the sensing distortion and that the joint is properly insulated to avoid any electrical failure N OT E When fitting the air thermistor remember that they must be secure correctly in an adequate place to avoid external influences like ambient conditions and where the air temperature is significant Cable clamp exam...

Page 86: ...connection in the position shown in the figure OACI 160K2 PD 75A This kit can not supply the fresh air by itself Therefore connect the duct and supply the fresh air from the total heat exchanger or the duct fan When connecting this kit to the total heat exchanger or the duct fan make an interlock to the fan of the indoor unit The example is shown below CN7 1 2 RY 52F AC RYa Indoor Unit Printed Cir...

Page 87: ...m air and the outside air as shown in the table below Temperature Difference between Supply Air from Room Air and Outside Air Countermeasure Below 10 deg No Countermeasure Required Below 15 deg Perform Insulation Over 15 deg Use with Total Heat Exchanger or Operation is Not Permissible The outdoor air inlet duct resistance is indicated in the following figure Use as a guide for fan selection 0 1 2...

Page 88: ...may be produced on the inner surface of the drain pan air inlet hole and in some cases dew may form Always limit yourself to the values indicated in the figure below Nº Part 1 Duct made of only non combustible materials 2 Thermal insulation non combustible materials 3 Outdoor air inlet hood with gallery attached drip proof hood type 4 Air filter 5 Duct fan 6 Service panel 7 Damper Fit an air filte...

Page 89: ... on both sides T duct connection position For RCI FSN3 indoor units TKCI 160K The T duct connection is designed for easier connections between the outdoor air inlet and the connection duct The T duct connection can only be installed when using the outdoor air inlet kit optional or the filter box optional 210 77 Flexible Duct 2 Pieces 50 410 25 φ75 φ75 φ105 φ145 φ100 315 25 T Tube Connection Galvan...

Page 90: ...sion Model a b 1 0 2 5 303 179 3 0 6 0 353 229 The outdoor air inlet duct resistance increases as indicated in the following figure when using the T duct connection Use it as a guide for fan selection 0 2 4 6 Air Flow Volume m3 min Pass Resistance Pa Pass Resistance of Fresh Air Intake Portion 6HP Limit of Fresh Air Intake Amount 50 100 150 200 0 NOTE This chart is shown the relationship between t...

Page 91: ...n can only be installed when using the outdoor air inlet kit optional or the filter box optional RCI unit with T duct connection The diameter of the T has increased Ø90 The outdoor air inlet duct resistance increases as indicated in the following figure when using the T duct connection Use it as a guide for fan selection 1 installation of the junction box on one side 2 installation of the junction...

Page 92: ...ng room always install a return grille Example of a branch pipe Branch pipe installation The connections for the branch pipe are indicated in the following figure There are six knockout holes Cut the insulation material on the outer surface in a circle and line up the notches at the four corners Use a screwdriver or similar and remove Prepare the square connection duct field supplied or use a flex...

Page 93: ...ill decrease Therefore the hot air projection distance will be reduced 1 Where the branch duct is installed from this viewpoint apply the dimensions indicated in the figure below to avoid accidents 2 Use ducts with non combustible insulating materials 3 Fit enough heat insulation to the duct to avoid condensation 4 Follow the regulations in force regarding this matter in the pla ce of installation...

Page 94: ...nel If adhered the drain pan can not remove For RCI FSN3Ei indoor units PI 23LS5 If only three outlets are necessary use the PI 23LS5 3 way outlet part set Install the interlock plates as indicated in the figure Only one of the 4 outlets can be blocked N OT E If three outlet ways are used the quantity of air will decrease by between 3 and 5 and there will be no significant di fferences within the ...

Page 95: ...on Polyethylene Corner Frame Galvanized Steel Plate Polystyrene Counter Mark Refrigerant Pipe Side When the filter box is installed the total height of the unit increases by approximately 55 mm Therefore pay attention to the installation space Bear in mind that the size before compression is 10 mm but the size is reduced after compression to 5mm 840 Service Space Installation Height 55 12 50 a b 5...

Page 96: ...otal height of the unit increases by approximately 85 mm Therefore pay attention to the installation space Bear in mind that the size before compression is 10 mm but the size is reduced after compression to 5mm Nº Part 1 Air panel 2 Air filter 3 Long lasting air filter 4 Filter box 5 Ceiling 6 Air panel optional 7 Suction grille Model a mm RCI 1 0 2 5 FSN3Ei 248 RCI 3 0 6 0 FSN3Ei 298 ...

Page 97: ... Filter 840 Indoor Unit Put the square holes into the extruded parts of air inlet grille Extruded Part Specifications Part RCI 1 0 6 0 Dust collection efficiency 50 gravimetric method Air flow rate m3 min 35 0 Initial pressure loss Pa 28 0 Final pressure loss Pa 62 0 Filter Frame colour White Brown Working life 4 years with maintenance every 1250 hours Cleaning Available Weight kg 0 6 Performance ...

Page 98: ...cations Part RCI 1 0 6 0 Dust collection efficiency 50 gravimetric method Air flow rate m3 min 37 0 Initial pressure loss Pa mmAq 17 7 1 8 Final pressure loss Pa mmAq 44 1 4 5 Filter Frame colour White Brown Working life 4 years with maintenance every 1250 hours Cleaning Available Weight kg 0 7 Performance Avoids the multiplication of bacteria and mould Filter material Modified acrylic fibre 1 con...

Page 99: ...e Air Flow Direction Model 2 Pieces Reinforcement Air Filter 588 544 AIR FLOW F 160L D1 a Model Dimension F 71L D1 F 160L D1 a 25 45 The position of the deodorising filter is shown below 40 c Min 10 12 55 d 50 5 155 840 Indoor Unit Air Inlet Grille Long Life Filter F 160L K Air Panel Filter Box b Insert the air filter into the filter box and fix the air filter by filter holder Filter Holder Resin ...

Page 100: ...ber for acidic gas Reinforce net PP PE Reinforce sheet PP Applicable filter box option B 160H2 Restrictions of use Washing with detergents is forbidden 1 This is the standard working life of the filter and its duration may vary depending on the conditions of use Clean the filter with water or neutral detergent 2 Wash the filter with water or neutral detergent to avoid reducing the absorption capac...

Page 101: ...0 9 1 0 Performance Absorbs smoke body odour etc Restrictions of use Washing with detergents is forbidden 1 This is the standard working life of the filter and its duration may vary depending on the conditions of use Clean the filter with water or neutral detergent 2 Wash the filter with water or neutral detergent to avoid reducing the absorption capacity N O TE Some special smells such as that of...

Page 102: ...2 Unit installation 90 SMGB0077 rev 0 01 2013 ...

Page 103: ... pipes 99 3 4 7 Flared connection mounting 100 3 4 8 Refrigerant pipe insulation 101 3 4 9 Refrigerant pipe suspension 101 3 5 Refrigerant and drain hose installation 102 3 5 1 RCI 4 way cassette 1 0 6 0 FSN3 102 3 5 2 RCI 4 way cassette 1 0 6 0 FSN3Ei 104 3 5 3 RCIM 4 way cassette compact 0 8 2 0 FSN2 106 3 5 4 RCD 2 way cassette 1 0 5 0 FSN2 107 3 5 5 RPC Ceiling type 2 0 6 0 FSN2E 108 3 5 6 RPI...

Page 104: ...he diameter of the refrigerant pipes depends directly on the power of the outdoor unit If larger diameter refrigerant pipes are used the circuit lubrication oil tends to separate from the gas carrying it The compressor will be seriously damaged due to a lack of lubrication If smaller diameter refrigerant pipes are used the gas or liquid refrigerant will have serious difficulties in circulating Sys...

Page 105: ...Supply mm Inches Ø6 35 1 4 0 80 Roll Ø9 52 3 8 0 80 Roll Ø12 7 1 2 0 80 Roll Ø15 88 5 8 1 00 Roll Ø19 05 3 4 1 00 Pipe Ø22 20 7 8 1 00 Pipe Ø25 40 1 1 00 Pipe Ø28 60 1 1 8 1 00 Pipe Always use clean copper pipes with no signs of knocks or cracks Make sure there is no dust or dampness on the inside Before you install the pipes clean the inside with oxygen free nitrogen gas to eliminate any remains ...

Page 106: ...nnection to the indoor unit using the insulating material supplied C secure the insulation using the flange supplied or using suitable adhesive tape D Installation refrigerant gas pipe E installation insulation field supplied F brazing G flare the pipe after inserting the flare nut H indoor unit insulation I indoor unit A I B C D E F G H N OT E Where polyethylene foam insulation is used a 10 mm th...

Page 107: ...n the Service Manual corresponding to the outdoor units of the UTOPIA or SET FREE systems especially when the outdoor unit is situated at a different height than the indoor units System performance depends on the distance between the outdoor and indoor unit This aspect must be taken into account for the installation of the refrigerant pipe The outdoor units are factory charged with sufficient refr...

Page 108: ...lm of rust formed during brazing without nitrogen injection Insufficient nitrogen wash after brazing Expansion valve capillary tube and filter clogging Oil oxidation Compressor fault Compressor fault insufficient cooling or heating Pipe protection 1 Fit caps to the ends of the pipes 2 Protect and insulate the ends of the pipes Wash 3 Absence of leaks There must be no leaks Brazing fault Flaring fa...

Page 109: ... ends of the pipe during handling The copper pipe must be clean and have no remains of adhesive cement dust or other substances adhered to it Where the copper pipe is supplied in rolls fit a cap on the end and unwind it while it is resting on the ground so that the turning movement of the roll as it is unwound forms a straight pipe N O TE The rolls of copper refrigeration pipe are normally supplie...

Page 110: ...er C A U TION While making the cut slant the pipe downwards to prevent burrs or shavings from falling inside the pipe Do not use hand saws circular saws abrasive grinders or other tools that generate shavings Strictly follow national or local regulations regarding occupational health and safety Wear appropriate means of protection during cutting or brazing operations and installation gloves eye pr...

Page 111: ...the following table C AUTION It is important to check the pipe fitting measurement as indicated in the following table If a tool is used to widen the copper pipe the dimensions indicated must be respected Copper pipe size Ød1 Tolerance a Ø6 35 0 08 0 08 Ø6 5 0 1 0 0 33 0 07 6 Ø9 52 0 08 0 08 Ø9 7 0 1 0 0 35 0 09 8 Ø12 7 0 08 0 08 Ø12 9 0 1 0 0 38 0 19 8 Ø15 88 0 09 0 09 Ø16 1 0 1 0 0 41 0 13 8 Ø19...

Page 112: ...ared pipe to face the fitting to which it is to be threaded Gently rest the female cone on the male cone and check that the measurement is correct Keep the connection lined up with one hand and gently thread on the flare nut with the other Tighten the connection to the corresponding tightening torque indicated in the table below Nominal diameter Tightening torque mm Inches Ø6 35 1 4 20 Nm Ø9 52 3 ...

Page 113: ...rature of the refrigerant and the subsequent loss of energy and the condensation of water along the entire pipe Refrigerant pipes must always be separately insulated using closed cell insulation foam designed especially for refrigeration This insulation foam supplied by the installer can be obtained in different formats The most common is in the form of sheets and rolls of tubes of different diame...

Page 114: ...Ø12 70 1 2 0 80 16 6 Ø15 88 5 8 1 00 19 7 Dimensions of the flare nuts for flared connections Nominal diameter Measurement B mm mm inches Ø6 35 1 4 17 Ø9 52 3 8 22 Ø12 70 1 2 26 Ø15 88 5 8 29 3 5 1 RCI 4 way cassette 1 0 6 0 FSN3 Refrigerant pipe installation The correct position for the refrigerant pipe connection is shown below The pipe connection must be accessible from all directions above lef...

Page 115: ...rain pipe installation The position of the drain pipe connection is shown below 55 82 184 mm Prepare a polyvinyl chloride pipe with a 32mm outer diameter Fasten the tubing to the drain hose with an adhesive and the factory supplied clamp 28mm 20 5mm Hose band accessory Use vinyl chloride type adhesive Tightening torque 3 0 6 5N m Elbow or vinyl chloride VP25 Field supplied Vinyl tape Drain pipe co...

Page 116: ...nt or twisted Drain Hose It will cause water leakage Insulate the drain pipe after connecting the drain hose mm Hose band accessory Insulation 5T x 25 x 500 accessory Completely wrap up the transparent area of the drain pipe end connection Insulation 5T x 100 x 200 accessory Wrap up the drain hose completely to cover the hose band 3 5 2 RCI 4 way cassette 1 0 6 0 FSN3Ei Refrigerant pipe installati...

Page 117: ...th an outer diameter of 32 mm Secure the pipe with the clamp and adhesive supplied 4 1 25 1 1 100 850 mm The drain hose must have a gradient of 4 1 25 to 1 1 100 Drainage pipe connection Drainage pipe accessory Use PVC adhesive PVC pipe Ø 32 field supplied Clamp accessory Do not use adhesive Clamp accessory Insulation field supplied C A UTION Do not apply too much force when making the drain hose ...

Page 118: ...ible from all directions above left or right Models 1 Gas pipe mm inches 2 Liquid pipe mm inches RCIM 0 8 1 5 FSN2E Ø12 70 1 2 Ø6 35 1 4 RCIM 2 0FSN2E Ø15 88 5 8 Drain pipe installation The correct position for the drain hose connection is shown below Prepare a polyvinyl chloride PVC pipe with an outer diameter of 32 mm Secure the pipe with the clamp and adhesive supplied Drain pipe connection The...

Page 119: ... connection and the drain hose Do not apply too much force when making the drain hose connection as this could damage it Do not use bent or twisted drain pipes as these will cause water leaks Then insulate the drain hose appropriately 3 5 4 RCD 2 way cassette 1 0 5 0 FSN2 Refrigerant pipe installation The correct position for the refrigerant pipe connection is shown below The pipe connection must ...

Page 120: ...pply adhesive between the drain hose connection and the drain hose Do not apply too much force when making the drain hose connection as this could damage it Do not use bent or twisted drain pipes as these will cause water leaks Then insulate the drain hose appropriately 1 25 1 100 Down slope Insulation Field Supplied Insulation Factory Supplied Clamp Factory Supplied Polyvynil Chloride Tube Field ...

Page 121: ...buttons on the grille backwards 1 Slide 2 Knob 1 2 2 Open the air inlet grille Air inlet grille 3 Push and slide the air inlet grille backwards and open it Rear side Press Unit Open Air inlet grille 4 Remove the die cut panel from the required part of the unit to install the refrigerant pipes Upper side Open the Knockout hole 50 155 Open the die cut panel Liquid pipe Gas pipe Seal piping Sealing p...

Page 122: ...he insulation supplied as indicated below Rear side Open the Knockout hole Seal piping P 1 2 3 4 5 6 7 8 9 P 1 2 3 4 5 6 9 125 145 54 83 38 95 1 Sealing plate supplied 0 8x118x142 mm 2 Gas refrigerant pipe 3 Liquid refrigerant pipe 4 Seal with insulation 5 Sec P P 6 M4 screw 7 Sealing plate 8 M4 screw 9 Knockout hole ...

Page 123: ...he drain connection without causing water leaks 4 Insulate the drain hose around the wire clamp to avoid condensation 5 Insert the drain pipe into the drain hose and secure it using the wire clamp B Clamp B Drain pipe Clamp A Insulation Drain pipe Drainage Connection on the left hand side Fan Fan motor Drainage Drainage plug Wire clamp Drainage plug Insulating plug 1 Remove the plug from the drain...

Page 124: ...ng waterproof chloride sealing material Insulate the connection part carefully Secure the drain pipe to the connection part using the clamp supplied Drain pipe Insulating material field supplied Drainage gradient PVC pipe outer diameter 26 mm Clamp C A U TION Do not apply too much force when making the drain hose connection as this could damage it Do not use bent or twisted drain pipes as these wi...

Page 125: ...gerant pipe connection is shown below 1 2 3 1 Gas piping connection 2 Liquid piping connection 3 Drain piping Models Gas pipe mm inches Liquid pipe mm inches RPI Ø12 7 1 2 Ø6 35 1 4 N O TE When installing the pipes leave enough space for maintenance work in the electrical box of the unit Drain pipe installation The correct position for the drain hose connection is shown below ...

Page 126: ...r connecting the drain hose NOTE If the relative humidity of the inlet air or the ambient air exceeds 80 in the place where the unit is installed fit an auxiliary drain pan field supplied below the indoor unit as indicated in the figure Indoor unit Auxiliary drain pan field supplied 3 5 7 RPI Ducted indoor unit 2 0 6 0 FSN4E Refrigerant pipe installation The correct position for the refrigerant pi...

Page 127: ...t position for the drain hose connection is shown below RPI 2 0 6 0 RPI 8 0 10 0 Drain pipe Drain pipe Drain pipe Prepare a polyvinyl chloride PVC pipe with an outer diameter of 32 mm Fasten the tubing to the drain hose with an adhesive and the factory supplied clamp The drain piping must be performed with a down slope pitch of 1 25 to 1 100 Then insulate the drain hose appropriately Insulation Fi...

Page 128: ...here the unit is installed fit an auxiliary drain pan field supplied below the indoor unit as indicated in the figure Indoor unit Auxiliary drain pan field supplied 3 5 8 RPI Ducted indoor unit 8 0 10 0 FSN3E Refrigerant pipe installation The location of the refrigerant pipe connections are shown below 1 2 4 3 1 Liquid pipe 2 Gas pipe 3 Electrical connection 4 Drain pipe Model Gas pipe mm inches L...

Page 129: ...ould be perfomed with a down slope pitch of 1 25 to 1 100 Connect a syphon as shown at the figure below 75 mm Slope 2 Plug NOTE Keep Electrical Box and Drain Pipe connection free of refrigerant pipes C AUTION It is very important the syphon installation in order to guarantee the proper condensate draining NOTE If the relative humidity of the inlet air or the ambient air exceeds 80 in the place whe...

Page 130: ...M 0 8 1 5 FSN4E Ø12 70 1 2 Ø6 35 1 4 N OT E When installing the pipes leave enough space for maintenance work in the electrical box of the unit Drain pipe installation Drain hose installation 1 Insert the drain hose in the clamp A 2 Push the drain hose towards the boss until it reaches the end of the pan 3 Tighten the screw on the wire clamp to secure the pipe around the drain connection without c...

Page 131: ... an auxiliary drain pan field supplied below the indoor unit as indicated in the figure Indoor unit Auxiliary drain pan field supplied Drainage installation for DU units Optional drainage kit for units without drain pump For special cases those installation design finally requires draining up and was not desgined from the beginning of the installation project it is available the optional drain kit...

Page 132: ...irections above left or right Model Measurements mm a b c g RPK 0 8 1 0 FSN H 3M 395 107 288 243 RPK 1 5FSN H 3M 395 107 288 262 RPK 2 0 4 0 FSN3M 480 141 339 471 5 0 R b a g c Insulation Left rear side hole for pipe and wire Refrigerant gas pipe For rear side piping Exterior contour for indoor unit For right side piping Liquid pipe connection Model Measurements mm d e f h RPK 0 8 1 0 FSN H 3M 450...

Page 133: ...Right side cover Plastic cutter Cut this corner Left Side Piping Cut the corner by plastic cutter as same as the right side piping Perform this procedure before the indoor unit is hung onto the wall a When the left side piping is selected the drain pipe outlet should be changed from right side to left side If it is not changed to left side and the suspension bracket is fixed onto the fall with rig...

Page 134: ...erant and drain pipe connection Fix the fixing plate for pipes accessory as shown in the figure below Fix the fixing plate onto upper and lower catches Fixing Plate only for 2 0 to 4 0HP Catches Models Gas pipe mm inches Liquid pipe mm inches RPK 0 8 1 5 FSN H 3M Ø12 70 1 2 Ø9 52 3 8 FSNH3M Ø6 35 1 4 FSN3M RPK 2 0FSN3M Ø15 88 5 8 Ø6 35 1 4 RPK 2 5 4 0 FSN3M Ø15 88 5 8 Ø9 52 3 8 Drain pipe installa...

Page 135: ...ight side Insert until this line Drain hose Left side Insert until this line Drain outlet cap Drain outlet cap Drain hose Provide a vinyl chloride pipe VP16 When the drain hose is used do not create rising part or twist VP16 24mm Create down slope Wrap the vinyl tape Connection Wrap surely the vinyl tape around the drain piping connection Insulate surely the drain pipe after the vinyl chloride pip...

Page 136: ...nt pipe installation The correct position for the refrigerant pipe connection is shown below gas pipe Liquid pipe Drain pipe Gas pipe Liquid pipe Drain pipe Models Gas pipe mm inches Liquid pipe mm inches Drain hose mm RPF I 1 5FSN2E Ø12 70 1 2 Ø6 35 1 4 Ø18 5 RPF I 2 0FSN2E Ø15 88 5 8 RPF I 2 5FSN2E Ø9 52 3 8 Drain pipe installation The correct position for the drain hose connection is shown belo...

Page 137: ... 3 SMGB0077 rev 0 01 2013 3 6 Refrigerant charge N O TE For matters relating to the refrigerant charge in the installation consult the Technical Catalogue and Service Manual corresponding to the outdoor units of the UTOPIA or SET FREE systems ...

Page 138: ... total quantity of refrigerant R kg charged in the system to do so connect all the indoor units of the ro oms in which you wish to have air conditioning 2 Calculate the volume V m3 of each room 3 Calculate the refrigerant concentration C kg m3 of the room in accordance with the following formula R V C R total quantity of refrigerant charged kg V volume of the room m3 C refrigerant concentration 0 ...

Page 139: ... of RPIM units 142 4 1 8 Electrical connection of RPK units 145 4 1 9 Electrical connection of RPF I units 148 4 1 10 Electrical connection of KPI units 150 4 1 11 DX Interface electrical wiring 151 4 1 12 Network system connection CS NET WEB 155 4 1 13 Connection between units H LINK and H LINK II 156 4 2 Setting of DIP switches and RSW switches 157 4 2 1 Location of DIP switches and RSW switches...

Page 140: ...ble for communications between the indoor and outdoor units Connect the shielding to the earthing screw in the indoor unit electrical box If the power cables are connected in series use the maximum current value and select the cables according to the following tables For indoor units Model Power supply Max current A Power supply cable size Transmission cable size EN60 335 1 EN60 335 1 Indoor units...

Page 141: ...hat the electrical power line has enough capacity to supply the unit Its length the cable diameter and their protection sleeve or jacket must be appropriate for the unit For further information always consider the current regulations in the country where the unit is to be installed C AUTION Risk of fire cables must never touch the refrigerant pipes printed circuit boards PCB sharp edges or elec tr...

Page 142: ...cables to terminals L1 and N or L1 and L2 as applicable 3 Tighten the screws on terminals L1 and N or L1 and L2 as applicable 4 Check that the cables are correctly secured Follow the steps below to connect the communication cables between the outdoor and indoor unit to the terminal strip TB1 1 Where necessary loosen the screws on terminals 1 and 2 on the terminal strip TB1 2 Connect the communicat...

Page 143: ...o Part 1 Wiring connection hole 2 Screw for wiring support plate under piping cover 3 Screw for electrical box cover 4 Electrical box cover 5 PCB Printed circuit board 6 Electrical box 7 Wiring support plate 8 Cord clamp 9 Electrical box 10 Terminal board TB2 11 Terminal board TB1 12 Earth terminal Part No 1 Tie 2 Communication wiring between the indoor and outdoor units and between indoor units 3...

Page 144: ...ons Check that the electrical power line has enough capacity to supply the unit Its length the cable diameter and their protection sleeve or jacket must be appropriate for the unit For further information always consider the current regulations in the country where the unit is to be installed C A U TION Risk of fire cables must never touch the refrigerant pipes printed circuit boards PCB sharp edg...

Page 145: ...en the screws on terminals L1 and N or L1 and L2 as applicable 4 Check that the cables are correctly secured Follow the steps below to connect the communication cables between the outdoor and indoor unit to the terminal strip TB1 1 Where necessary loosen the screws on terminals 1 and 2 on the terminal strip TB1 2 Connect the communication cables to terminals 1 and 2 3 Tighten the screw on terminal...

Page 146: ...are not used The compressor remains at a standstill during forced stoppage 4 1 4 Electrical connection of RCD units Work prior to the electrical connection 1 Turn off the power supply switches before starting work and fit the appropriate locks and safety warnings 2 Wait 5 minutes after turning off the power supply switches 3 Check that the fans on the indoor and outdoor units are at a standstill b...

Page 147: ...e in the cabinet 2 Connect the cable to terminals A and B of the terminal strip TB2 3 Tighten the screw on terminals A and B 4 Check that the cables are correctly secured Follow the steps below to connect the power cables to the terminal strip TB1 1 Where necessary loosen the screws on terminals L1 and N on the terminal strip TB1 2 Connect the power cables to terminals L1 and N 3 Tighten the screw...

Page 148: ...he electrical box 2 Connect the shielded part of the power supply earth wire and the signal wiring earth wire to the earth connection 3 Tighten the screw on the earthing connection in the electrical box 4 Check that the shielded part of the earthing cables are correctly secured 90 445 50 Wiring Hole 32 5 Knockout Hole φ Wiring Hole 30x39 Nº Part 1 Tie 2 Communication wiring between the indoor and ...

Page 149: ...where the unit is to be installed C AUTION Risk of fire cables must never touch the refrigerant pipes printed circuit boards PCB sharp edges or elec trical components inside the unit to avoid damaging them Loose connection terminals may lead to cable and terminal overheating The unit may operate incorrectly leading to a risk of fire Check that the cables are firmly secured to the connection termin...

Page 150: ...the shielded part of the power supply earth wire and the signal wiring earth wire to the earth connection 3 Tighten the screw on the earthing connection in the electrical box 4 Check that the shielded part of the earthing cables are correctly secured Nº Part 1 Electrical box 2 Tie 3 Die cut wiring hole 4 Grille 5 Remote control wiring optional 6 Communication wiring 7 Power wiring Test runs C A U ...

Page 151: ...to be installed C AUTION Risk of fire cables must never touch the refrigerant pipes printed circuit boards PCB sharp edges or elec trical components inside the unit to avoid damaging them Loose connection terminals may lead to cable and terminal overheating The unit may operate incorrectly leading to a risk of fire Check that the cables are firmly secured to the connection terminals Electrical con...

Page 152: ...trip TB 1 Where necessary loosen the screws on terminals 1 and 2 on the terminal strip TB 2 Connect the communication cables to terminals 1 and 2 3 Tighten the screw on terminals 1 and 2 4 Check that the cables are correctly secured Follow the steps below to connect the earth wire to the earth connection in the electrical box 1 Where necessary loosen the screw on the earthing connection in the ele...

Page 153: ...erminal board connections Nº Part 1 Printed circuit board 1 PCB1 2 Printed circuit board 2 PCB2 3 Terminal board TB 3 RPI 8 0 10 0 FSN3E Terminal board connections Nº Part PCB1 Printed circuit board PCB2 Printed circuit board TF Transformer TB3 Terminal strip FUSE Fuse ...

Page 154: ... CN25 operation at high static pressure HSP 4 1 7 Electrical connection of RPIM units Work prior to the electrical connection 1 Turn off the power supply switches before starting work and fit the appropriate locks and safety warnings 2 Wait 5 minutes after turning off the power supply switches 3 Check that the fans on the indoor and outdoor units are at a standstill before starting work N OT E The...

Page 155: ...les are correctly secured Follow the steps below to connect the power cables to the terminal strip TB 1 Where necessary loosen the screws on terminals L1 and N on the terminal strip TB 2 Connect the power cables to terminals L1 and N 3 Tighten the screws on terminals L1 and N 4 Check that the cables are correctly secured Follow the steps below to connect the communication cables between the outdoo...

Page 156: ...rcuit board 2 PCB2 3 Terminal board TB Test runs C A U TION Be careful during the test runs as some of the safety functions remain disabled the units operate for two hours without switching off via the thermostat The three minute compressor protection is not enabled during the test Secure the rubber bushes to the panel using adhesive when the outdoor unit ducts are not used The compressor remains ...

Page 157: ...perate incorrectly leading to a risk of fire Check that the cables are firmly secured to the connection terminals Electrical connection CAUTION Make sure that the field selected electrical components main power switches circuit breakers wires conduit connectors and wire terminals have been properly selected according to the electrical data given in Techni cal Catalog Make sure that the components ...

Page 158: ...l switch can be extended up to 500m If the total wiring length less than 30m the normal wiring 0 3mm2 except the twist pair cable is available except for Australia D A NGER Tightly secure wirings to the terminal board according to the specified torque If tightening the terminals is not completed heat generation an electric shock or a fire will occur at the terminal connection Make sure that the wi...

Page 159: ...tch is used with the receiver built in the indoor unit If the simultaneous indoor units operation is required with this wireless remote control switch use the optional receiver kit PC ALHZF For the identifying of indoor units installed side by side operation the wireless remote control switch should be set at b mode Refer to Installation and Operation Manual for the wireless remote control switch ...

Page 160: ...power control switch and residual current breaker installed in line with local or national safety regulations Check that the electrical power line has enough capacity to supply the unit Its length the cable diameter and their protection sleeve or jacket must be appropriate for the unit For further information always consider the current regulations in the country where the unit is to be installed ...

Page 161: ... the screws on the power terminals in the electrical box 2 Connect power cables L1 and N to the power terminals in the electrical box 3 Tighten the screws on the power terminals in the electrical box 4 Check that the power cables are correctly secured Follow the steps below to connect the communication cables between the outdoor and indoor unit to the terminals in the electrical box 1 Where necess...

Page 162: ...he electrical power line has enough capacity to supply the unit Its length the cable diameter and their protection sleeve or jacket must be appropriate for the unit For further information always consider the current regulations in the country where the unit is to be installed C A U TION Risk of fire cables must never touch the refrigerant pipes printed circuit boards PCB sharp edges or elec trica...

Page 163: ... some of the safety functions remain disabled the units operate for two hours without switching off via the thermostat The three minute compressor protection is not enabled during the test Secure the rubber bushes to the panel using adhesive when the outdoor unit ducts are not used The compressor remains at a standstill during forced stoppage 4 1 11 DX Interface electrical wiring Connect the elect...

Page 164: ...4 Electrical wiring 152 SMGB0077 rev 0 01 2013 Control box terminal board DX Interface EXV 2 0 10 0 E1 Terminal board 1 Terminal board 2 N OT E Packing gland for thermistor installation ...

Page 165: ...0 5mm2 1 7 P P PWM output signal 0 100 8 G G GND 9 T EC2 PWM Output control for EC FAN 2 optional T Tach input signal Hz Wire section 3x0 5mm2 1 10 P P PWM output signal 0 100 11 G G GND 12 V DUTY A Duty control by current 4 20mA optional V Output power to device 24Vdc Wire section 3x0 5mm2 Note Maximum power by 24Vdc output 3watts 13 D D Current input 4 20mA 14 N N GND 15 1 FS Flow switch optiona...

Page 166: ...common Maximum current allowed 3 5A Wire section 4x0 75mm2 1 14 H H High fan speed signal 15 M M Medium fan speed signal 16 L L Low fan speed signal 17 Not used 18 19 1 M AL Motor alarm signal Alarm input signal can be used for alarm link between the DX Kit interface and the unit connected If the jumper between terminal 1 19 and 2 20 is open unit will be switched to alarm condition Connect again t...

Page 167: ...4 Electrical wiring 155 4 SMGB0077 rev 0 01 2013 4 1 12 Network system connection CS NET WEB PC ART PC ARF PC ART PC ARF PC ART PC ARF CS NET WEB ...

Page 168: ... systems set the H LINK units in the first 16 positions of the system as shown in the following figure There are 26 systems with FSN 2 3 4 E indoor units N OT E H LINK is able to manage up to 160 indoor units When PSC 5S and CSNET WEB 2 0 only compatible with H LINK are used remember that only 16 indoor units and 16 outdoor units can be managed ...

Page 169: ...P switches Otherwise the switch settings are invalid 2 To set the position of the RSW rotary switches insert a screwdriver into the groove of the RSW N O TE The DIP and RSW switches of each indoor and outdoor unit must be set although they do not all have to be set Read the following sections carefully for information on which ones must be set ...

Page 170: ...ary switches RCI 1 0 6 0 FSN3 units 0 9 8 7 654 3 2 1 0 9 8 7 654 3 2 1 DSW4 DSW5 RSW2 DSW9 DSW6 RSW1 DSW3 DSW7 ON ON ON ON ON ON 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 1 2 3 4 1 2 RCI 1 0 6 0 FSN3Ei units RCIM 0 8 2 0 FSN2 units RCD 1 0 3 0 FSN2 units RPC 2 0 6 0 FSN2E units RPF I 1 0 2 5 FSN2E units RPI M 0 8 6 0 FSN4E DU units ...

Page 171: ...4 Electrical wiring 159 4 SMGB0077 rev 0 01 2013 RPI 8 0 10 0 FSN3E units RPK 0 8 1 5 FSN H 3M units RPK 2 0 4 0 FSN3M units KPI 252 2002 E H 3E and KPI 502 1002 X3E units PCB1 PCB2 ...

Page 172: ...s not displayed this indicates that the position of the pin is not affected DSW2 switch optional functions setting only for RPK FSN H 3M C A U TION Do not set the DSW2 switch as it is factory set prior to delivery RPK 0 8 4 0 FSN H 3M Factory setting Setting for indoor units installed side by side when wireless remo te control switch is used DSW3 switch capacity code setting This is used to set th...

Page 173: ...le number setting This is used to set the refrigerant cycle number N O TE The factory setting of DSW5 switches is OFF The rotary switches are set by inserting a screwdriver of the appropriate size into the centre groove Setting position DSW5 Setting position RSW2 Tens setting second digit Unit setting first digit Example for number 5 0 9 8 7 654 3 2 1 DSW6 switch RSW1 rotary switch Unit no setting...

Page 174: ... correct the TB1 wiring and activate contact 1 KPI C A U TION Turn off the power supply before setting the DIP switches If not the settings will not be valid N OT E The symbol indicates the position of the DIP switches The figures show the setting before transmission or after selection If the mark is not displayed this indicates that the position of the pin is not affected PCB1 settings DSW3 Capac...

Page 175: ...W7 switch Fuse recover No setting is required Setting position before shipment 1 2 ON In case of applying high voltage to the terminal 1 2 of TB1 the fuse on the PCB1 M is cut In such a case firstly correct the wiring to TB1 and then turn ON 1 as showing beside 1 2 ON DSW5 switch RSW2 rotary switch refrigerant cycle number setting This is used to set the refrigerant cycle number N O TE The factory...

Page 176: ...H X 3E then only one DX Interface EXV 2 0 10 0 E1 or KPI E H X 3E should have pin 7 OFF while all other units must have pin 7 set to ON Failure to perform this setting correctly will result in bad communication and can even cause physical damage to the PCB DSW2 End resistance No setting is required All units 1 2 ON DX Interface PCB1 Settings DSW3 Capacity code setting No setting is required This D...

Page 177: ... indoor units in the same refrigerant cycle If the setting is not made manually the automatic address function will be enable Factory set to a value of up to 63 DSW6 RSW1 xxx Example of setting for unit no 16 DSW6 RSW1 xxx DSW7 switch Fuse recovery and remote control selection No settings are required All switches are factory set to OFF PC ART remote control selection 1 2 ON If high voltage is app...

Page 178: ...or the duty signal switch 3 4 2 The thermo ON OFF control can be driven externally by an input signal connected to the CN3 socket of the PCB1 The switch 6 of DSW1 in PCB2 must be switched on then the input i1 of CN3 is automatically set for thermo ON OFF control The setting of input i2 is kept as set on the remote controller C A U TION If there is an indoor unit connected in the same RCS line as D...

Page 179: ... Electrical wiring 167 4 SMGB0077 rev 0 01 2013 4 3 Wiring diagrams for indoor units and complementary systems 4 3 1 Wiring diagrams for indoor units Wiring diagrams for the RCI 1 0 6 0 FSN3 indoor units ...

Page 180: ...4 Electrical wiring 168 SMGB0077 rev 0 01 2013 Wiring diagrams for RCIM 0 8 2 0 FSN2 ...

Page 181: ...4 Electrical wiring 169 4 SMGB0077 rev 0 01 2013 Wiring diagrams for the RCI 1 0 6 0 FSN3Ei indoor units ...

Page 182: ...4 Electrical wiring 170 SMGB0077 rev 0 01 2013 Wiring diagrams for the RCD 1 0 5 0 FSN2 indoor units ...

Page 183: ...4 Electrical wiring 171 4 SMGB0077 rev 0 01 2013 Wiring diagrams for the RPC 2 0 6 0 FSN2E indoor units ...

Page 184: ...4 Electrical wiring 172 SMGB0077 rev 0 01 2013 Wiring diagrams for the RPI M 0 8 6 0 FSN4E indoor units ...

Page 185: ...4 Electrical wiring 173 4 SMGB0077 rev 0 01 2013 Wiring diagrams for the RPI 8 0 10 0 FSN3E indoor units ...

Page 186: ...4 Electrical wiring 174 SMGB0077 rev 0 01 2013 Wiring diagrams for the RPK 0 8 1 5 FSN3M indoor units ...

Page 187: ...4 Electrical wiring 175 4 SMGB0077 rev 0 01 2013 Wiring diagrams for the RPK 0 8 1 5 FSNH3M indoor units ...

Page 188: ...4 Electrical wiring 176 SMGB0077 rev 0 01 2013 Wiring diagram for the RPK 2 0 4 0 FSN3M indoor unit ...

Page 189: ...4 Electrical wiring 177 4 SMGB0077 rev 0 01 2013 Wiring diagrams for the RPF I 1 0 2 5 FSN2E indoor units ...

Page 190: ...4 Electrical wiring 178 SMGB0077 rev 0 01 2013 4 3 2 Wiring diagrams for complementary systems KPI 252 2002 E H 2E energy heat recovery unit and KPI 502 1002 XE3 active unit ...

Page 191: ...4 Electrical wiring 179 4 SMGB0077 rev 0 01 2013 DX Interface EXV 2 0 10 0 E1 ...

Page 192: ...4 Electrical wiring 180 SMGB0077 rev 0 01 2013 ...

Page 193: ...6 0 FSN4E 191 5 1 7 Printed circuit board for RPI 8 0 10 0 FSN3E units 192 5 1 8 Printed circuit board for RPK FSN H 3M units 194 5 1 9 Printed circuit board for KPI complementary systems 197 5 1 10 Printed circuit board for DX Interface complementary systems 198 5 2 Safety protection and control 201 5 3 Standard control functions 202 5 3 1 Freeze protection during the cooling or dehumidification ...

Page 194: ...ion valve is determined to optimise the difference in temperature of the I U gas pipe Tg the temperature of the I U liquid piping Tl Degree of opening specified at the start of normal control Then controlled to optimise the temperature of the I U liquid pipe Tl Specified degrees of opening controlled by the temperature at the top of the compressor Td Outdoor fan The fan speed operates to control t...

Page 195: ...or for the indoor fan MOF1 2 Motor for the outdoor fan MS Motor for the automatic louver MV Electronic expansion valve CMC Magnetic compressor contactor CH Crankcase heater CT1 Current transformer PSH High pressure switch RVR 4 way valve SVA B F Solenoid valve PSC Control pressure switch EHW Electric heater MCU Microcomputer ...

Page 196: ... position is as follows LED indicator LED1 Red This LED indicates the transmission status between the indoor unit and the remote control LED3 Yellow This LED indicates the transmission status between the indoor unit and the outdoor unit LED4 Red PCB power supply Connector indication PCN4 Not used PCN7 Terminal board 1 THM1 Air inlet thermistor THM2 Air outlet thermistor THM3 Freeze protection ther...

Page 197: ...tes the position of the DIP switches The figures show the setting before transmission or after selection If the mark is not displayed this indicates that the position of the pin is not affected The indoor unit PCB operates with five types of DIP switches and two rotary switches The position is as follows LED indicator LED1 Red This LED indicates the transmission status between the indoor unit and ...

Page 198: ...DSW5 RSW2 Refrigerant cycle number DWS6 RSW1 Indoor unit number settings DSW7 Fuse re establishing DSW9 Not used 5 1 3 Printed circuit boards for RCIM FSN2 indoor units C A U TION Turn off the power supply before setting the DIP switches If not the settings will not be valid N OT E The symbol indicates the position of the DIP switches The figures show the setting before transmission or after selec...

Page 199: ...rd 1 PCN203 Motor for indoor fan THM1 Air inlet thermistor THM2 Air outlet thermistor THM3 Freeze protection thermistor THM4 Not used THM5 Gas piping thermistor CN1 24V transformer CN2 Terminal board 2 CN3 Not used CN4 Not used CN7 Not used CN8 Not used CN11 Micro computer control expansion valve CN14 Float switch CN17 Air panel CN19 Printed circuit board 2 CN25 Not used CN201 Motor for indoor fan...

Page 200: ...ndicator LED1 Red This LED indicates the transmission status between the indoor unit and the remote control LED3 Yellow This LED indicates the transmission status between the indoor unit and the outdoor unit LED4 Red PCB power supply Connector indication PCN1 220 V transformer PCN5 Electric heater for dew protection PCN6 Drain pump motor PCN7 Power supply 1 R 3 S PCN201 Power supply 1 R 3 S PCN202...

Page 201: ...switches If not the settings will not be valid N O TE The symbol indicates the position of the DIP switches The figures show the setting before transmission or after selection If the mark is not displayed this indicates that the position of the pin is not affected The indoor unit PCB operates with four types of DIP switches a slide switch and a rotary switch The position is as follows LED indicato...

Page 202: ...Gas pipe thermistor TP Not used EF3 Fuse EF2 Fuse EFS1 Fuse EFR2 Fuse CN1 Transformer pins 1 2 17 3 V pins 3 4 20 8 V CN2 Outdoor unit H LINK control circuit CN3 Optional input functions only 2 CN7 Optional output functions only 2 CN8 Optional output functions no 1 no 2 only 1 CN11 Expansion valve control CN12 Remote control jumper connection for several units CN13 SW remote control CN14 Float swi...

Page 203: ...hat the position of the pin is not affected The indoor unit PCB operates with four types of DIP switches a slide switch and a rotary switch The position is as follows 8 PCB1 LED indicator LED1 Red This LED indicates the transmission status between the indoor unit and the remote control LED3 Yellow This LED indicates the transmission status between the indoor unit and the outdoor unit LED4 Red PCB ...

Page 204: ... Not used Switch indication DSW3 Capacity code DSW4 Unit model code DSW5 RSW2 Refrigerant cycle number DWS6 RSW1 Indoor unit number settings DSW7 Fuse re establishing DSW8 Additional functions DSW9 0 6HP capacity setting 5 1 7 Printed circuit board for RPI 8 0 10 0 FSN3E units C A U TION Turn off the power supply before setting the DIP switches If not the settings will not be valid N OT E The symb...

Page 205: ... S 3 N 4 E THM1 Air inlet thermistor THM2 Air outlet thermistor THM3 Liquid pipe thermistor THM4 Remote thermistor THM R2 AE THM5 Gas pipe thermistor TP Not used EFR1 Fuse EF4 Fuse CN1 Transformer pins 1 2 17 3 V pins 3 4 20 8 V CN2 Outdoor unit H LINK control circuit CN3 Optional input functions only 2 CN7 Optional output functions only 2 CN8 Optional output functions no 1 no 2 only 1 CN11 Expans...

Page 206: ...cates that the position of the pin is not affected LED indicator LED1 Red This LED indicates the transmission status between the indoor unit and the remote control LED3 Yellow This LED indicates the transmission status between the indoor unit and the outdoor unit LED4 Green PCB power supply Connector indication PCN500 Terminal board 1 PCN550 Motor for indoor fan THM1 Air inlet thermistor THM2 Air ...

Page 207: ...ication DSW3 Capacity code DSW4 Unit model code DSW5 RSW2 Refrigerant cycle number DWS6 RSW1 Indoor unit number settings DSW7 Fuse re establishing DSW9 Not used For RPK 2 0 4 0 FSN3M C AUTION Turn off the power supply before setting the DIP switches If not the settings will not be valid N O TE The symbol indicates the position of the DIP switches The figures show the setting before transmission or...

Page 208: ...ir inlet thermistor THM2 Air outlet thermistor THM3 Freeze protection thermistor THM4 Not used THM5 Gas piping thermistor CN2 TB2 CN3 Not used CN5A Not used CN5B PCB3 CN7 Not used CN8 Not used CN10 PCB4 CN11 Micro computer control expansion valve CN14 Not used CN17A Motor for automatic swing louver CN17B Motor for automatic swing louver CN18 PCB2 CN19A PCB2 CN19B PCB2 HA Not used Switch indication...

Page 209: ...status between the indoor unit and the remote control LED3 Yellow This LED indicates the transmission status between the indoor unit and the outdoor unit LED4 Green PCB power supply PCB2 LED indicator LED1 Yellow H LINK transmission 1 LED2 Green PCB power supply LED3 Yellow H LINK transmission 2 PCB1 Connector indication PCN1 230V transformer PCN2 Not used PCN3 Operation signal for electric heater...

Page 210: ...V CN4 CO2 sensor ON OFF CN5 Motor for fan 1 CN6 Motor for fan 2 EF1 PCB2 fuse TP Not used Switch indication DSW1 Not used DSW2 Not used DSW3 Capacity code DSW4 Unit model code DSW5 RSW2 Refrigerant cycle number DWS6 RSW1 Indoor unit number settings DSW7 Fuse re establishing 5 1 10 Printed circuit board for DX Interface complementary systems Dips switches location is the following C A U TION Before...

Page 211: ...ication PCN1 230V transformer PCN2 TB1 PCN3 Not used PCN5 Not used PCN6 TB1 PCN7 TB1 and PCB2 PCN8 Not used PCN10 TB1 PCN11 TB1 THM1 Coil inlet thermistor THM2 Coil outlet thermistor THM3 Liquid pipe thermistor THM4 Not used THM5 Gas pipe thermistor CN1 Transformer CN2 TB2 and PCB2 CN3 Not used CN5 Not used CN7 Not used CN8 Not used CN10 Not used CN11 TB1 CN14 TB2 CN17 Not used CN19 Not used EFR1 ...

Page 212: ...ector indication CN4 TB2 CN5 TB2 CN6 TB2 EF1 PCB2 fuse Switch indication DSW1 Optional functions DSW2 End resistance DSW3 Capacity code DSW4 Unit model code DSW5 RSW2 Refrigerant cycle number DWS6 RSW1 Indoor unit number settings DSW7 Fuse re establishing ...

Page 213: ...stat located in the fan motor winding This stops the fan motor when the winding temperature exceeds the set value Setting control and safety devices for indoor units Model RCI 1 0 3 0 FSN3 RCI 4 0 6 0 FSN3 RCI FSN3Ei RCIM FSN2 RCD For the evaporator fan motor internal thermostat Switch off ºC 100 4 100 10 15 145 5 145 5 130 5 Switch on ºC 90 4 100 10 15 90 15 90 15 83 15 For the control circuit fu...

Page 214: ...5 Control system 202 SMGB0077 rev 0 01 2013 5 3 Standard control functions 5 3 1 Freeze protection during the cooling or dehumidification process Cooling or Dry Operation Cooling or Dry Operation ...

Page 215: ...mal opening of the electronic expansion valve Cooling operation 1 Superheat temperature setting required a Heat exchanger SH 3 HP SH 0 C 4 HP SH 4 C b Heat exchanger SH Tg TL Tg Indoor gas pipe temperature TL Indoor liquid pipe temperature SH Superheat 2 Simulated PI control for the electronic expansion valve the opening of this valve is controlled so that the SH tempera ture of the heat exchanger...

Page 216: ...5 Control system 204 SMGB0077 rev 0 01 2013 5 3 3 Activation of the control with protection device N N Blow EHW fuse Current of the EHW circuit 10A or 20A ...

Page 217: ...drops due to seasonal winds blowing against the air outlet When CMC is enabled in cooling operation PSC is enabled and Tc is greater than Tc1 4 C operations with forced thermostat disabling are started Tc Outdoor pipe temperature Tc1 Outdoor pipe temperature when the PSC is enabled PSC enabled 3 60 MPa However if this occurs more than 6 times during operations thermostat stoppage is not forced The...

Page 218: ......

Page 219: ...ional input signals 214 6 1 5 Description of optional output signals 217 6 2 Complementary systems 219 6 2 1 KPI 219 6 2 2 DX Interface 220 6 3 Remote controls 223 6 3 1 Optional remote control functions PC ART example 223 6 3 2 List of optional remote control functions 224 6 3 3 Description of the optional remote control functions 232 6 3 4 Optional functions for PC ARH remote controls 240 6 3 5 ...

Page 220: ... connector CN7 has two ports and output connector CN8 has one port which are used to configure three output options of the eight available in the system N OT E The output signal connection is a mere example The system has the following input and output ports Indication Port setting on the indoor unit PCB Remarks Outlet Inlet i1 CN3 1 2 Contact i2 CN3 2 3 Contact Outlet o1 CN7 1 2 12 Vdc o2 CN7 1 3...

Page 221: ...capable of connecting the connector JST XHP 3 Five cables with connectors in one group Cable control Voltage 12 Vdc 0 5 mm2 Cable power Voltage 230 V 2 0 mm2 Recommendations for wiring installation Keep the CN3 connector cables as short as possible Try not to pull on the cable along the power line The cables should be laid separately at a distance of over 30 cm Cable crossing is feasible Where the...

Page 222: ...cooling This signal controls the unit through an external thermostat NOT E It can reduce summer cooling problems in certain applications CN3 02 Control by field supplied room thermostat heating This signal controls the unit through an external thermostat NOT E It can reduce problems caused by indoor air stratification CN3 03 Function 1 remote on off of the unit by contact This signal controls the ...

Page 223: ...practical in hotels and offices to control the indoor units from the building management system CN3 06 Cancellation of commands from the remote control after a forced stoppage This signal stops the indoor unit and cancels the commands from the remote control while it is enabled CN3 07 Cooling or heating mode setting This function controls operating mode changes from a remote location CN3 08 Up dow...

Page 224: ...l for centralised applica tions CN7 or CN8 Only CN7 for RPK units 02 Alarm signal This signal enables devices that protect and indicate any faults in the unit NOTE It is extremely useful for rooms in which air conditioning must re main on at all times CN7 or CN8 Only CN7 for RPK units 03 Cooling signal This signal controls the status of the compressor NOTE It is extremely useful for controlling th...

Page 225: ...e indication for 7 seconds for the remote control to change to the optional setting mode Indoor unit selection a In SERVICE 02 mode the indication changes as shown in the figure 1 Indication 02 enabled 2 Indication of the indoor unit on which the optional function is to be set dis played in the time indication segments for the timer setting and the ADDS indication is displayed below 3 Indication o...

Page 226: ... the optional function settings and return to normal mode Indoor unit selection In optional function setting mode press TEMP or TEMP to select the indoor unit on which the optional function is to be set Connectors CN3 CN7 and CN8 are factory set with the following optional functions Connector no Connector terminal Function Factory settings Inlet CN3 1 2 03 Function 1 Remote unit On Off 2 3 06 Canc...

Page 227: ...emote control N O TE The collection of signals during the first 10 seconds after connecting the power supply is not available due to com ponent initialisation Operation priority is given to the remote on off signal or to the remote control whichever is transmitted last Function 2 remote switching on of the unit pulse signal input On screen display 04 This is an optional remote on off signal that u...

Page 228: ...onal function contact B can be used through the optional setting of the remote control The time chart is shown below which provides information on when contact B can be used See Optional remote control functions for further details on contacts A and B Cooling or heating mode setting On screen display 07 This optional signal can be used to change the heating or cooling operating mode by sending a c...

Page 229: ...doors are opened and closed does not affect the room temperature It must be in a position where the thermistor is not directly exposed to sunlight or where there are no heat sources nearby 6 1 5 Description of optional output signals Picking up of the operation signal On screen display 01 This optional signal is used to pick up the operation signal Thanks to this function the operation signal can ...

Page 230: ...abled during cooling mode Heating operation signal On screen display 05 This optional signal is used to pick up the heating operation signal The X2 auxiliary relay contact closes when the heating operation signal is enabled regardless of whether the thermostat signal is enabled or disabled Connect the wiring and use the materials as indicated in Available ports N OT E The X2 auxiliary relay contac...

Page 231: ...5 Static pressure selection O O 00 Standard 01 High pressure 02 Low pressure C7 CO2 sensor enabled O O 00 Disabled Default 01 Enabled Cb Forced stop logic selection O O 00 A contact 01 B contact CC High ventilation speed O O 00 Disabled 01 Enabled CF Fan stoppage delay O O 00 Not available 01 60 min d1 Power ON OFF 1 O O 00 Invalid 01 Valid d3 Power ON OFF 2 O O 00 Invalid 01 Valid E1 Ventilation ...

Page 232: ...std functions become deactivated I2 input signal is not affected 6 2 2 DX Interface Main optional functions on DX Interface series 1 Optional function Explanation EC Fan or Tap Fan The control of tap fans and EC fans is possible from the DX Interface series 1 Defrost signal Output signal get from the DX Kit when the system is in defrost mode Fan operation during defrost During defrost operation th...

Page 233: ...l 5 Heating signal 6 Defrost signal Thermo On Off control option With DX Interface series 1 it is possible to perform the thermo On thermo Off control by three different ways Standard thermo On thermo Off control Default setting Suitable for installations controlled by suction or discharge temperature The thermo On thermo Off logic is decided based on the difference between the inlet temperature t...

Page 234: ...e DIP Switch 1 Pin 6 of DX Kit PCB2 small PCB must be switched on PCB2 DSW1 6 switched ON Once the PCB DSW has been set the input i1 of CN3 is automatically set for thermo On thermo Off control The setting of input i2 is kept as set on the remote controller Please refer to Hitachi Indoor Units Service Manual for further information about the setting and connection of the auxiliary inputs to CN3 so...

Page 235: ...tion is displayed below 4 The temperature setting display disappears b In the previous step a press TEMP or TEMP on the remote control to select the indoor unit on which the optional function is to be set NOT E The indoor unit can be selected from the indoor units connected to the remote control If the direction and refrigerant cycle number indication is AA the settings of all the indoor units are...

Page 236: ...ods of less than three minutes 01 Activated function b4 Pre determined filter cleaning period change O 00 Standard This function is used to modify the period which the remote control indicates the air filter replacement 01 100 hours 02 1200 hours 03 2500 hours 04 Not used b5 Fixing of operation mode X 00 Not activated function Once the unit operating mode has been selected this function prevents i...

Page 237: ...pump in heating mode O 00 Not activated function This function is used to activate the drain pump in heating mode 01 Activated function C5 Static pressure selection RPI O 00 Standard static pressure factory set This function is used to increase the fan speed on the indoor ducted units 01 High static pressure 02 Low static pressure Increasing fan speed RCI RCIM RCD 00 Not available This function is...

Page 238: ... 00 Standard 7 steps This function adjusts the angle of the air outlet louver 01 Draught prevention 5 steps 02 High ceilings 5 steps 3 d1 Power supply ON OFF 1 O 00 Not activated function This function stores the unit settings in the event of a power cut The unit is restarted when the power is re established 01 Activated function d2 Not available X permanent Not available d3 Power supply ON OFF 2 ...

Page 239: ...ted function This function selects the enthalpy sensor input 01 Activated function E3 Not available O 00 Not available Use at 00 conditions 01 E4 Pre cooling pre heating period O KPI This function delays the unit start up with energy heat recovery 00 Standard 01 30 minutes 02 60 minutes E5 Not available O 00 Not available Use at 00 conditions 01 E6 Indoor fan operation time after cooling operation...

Page 240: ...tion F1 PC ARF Automatic OFF timer setting X 00 Not activated function This function is used to set the automatic timer to switch off when the unit has been started by remote control Do not set the functions 0C 0F when two remote control switches are used in the same remote control group 01 1 h 02 2 h 03 3 h 04 24 04 24 h 0A 30 min 0B 90 min PC ART Not available 00 0B Not available F2 Remote contr...

Page 241: ... prevention by remote control switch operational error 5 X 00 Not activated function 01 Activated function PC ART Not available 00 01 Not available F8 Lock function for operation mode selection X 00 Not activated function This function is used to prevent changes to the operating mode 01 Activated function factory setting F9 Lock function for temperature setting X 00 Not activated function This fun...

Page 242: ...ion 01 Activated function factory setting PC ARF Not available Not available Use at 00 conditions H1 Maintenance alarms O 00 Display This function is used to display or hide maintenance alarms 01 Hide PC ARF Not available Not available Use at 00 conditions H2 PC ART Automatic control indication PC ARF Indication of hot start O 00 Display This function is used to display or hide the automatic contr...

Page 243: ...ivated function PC ARF only 01 Activated function PC ARF only J9 Not available Not available Use at 00 conditions PC ARF only JA Not available Not available Use at 00 conditions PC ARF only Jb Not available Not available Use at 00 conditions PC ARF only 1 1 Not available X Not available Use at 00 conditions PC ARF only 1 2 Not available X Not available Use at 00 conditions PC ARF only 1 3 Not avai...

Page 244: ...ure of the indoor unit must be the same b2 Circulator function at heating Thermo OFF This function is useful when the air in the room is stratified hot air accumulates at the ceiling Air stratification may occur if LOW has been selected with the heating thermostat off This function prevents air stratification in the room after stopping the air conditioning system The circulation pump function main...

Page 245: ...Fixing of cooling operation This function is available to use refrigeration mode only and to prevent heating mode from being enabled When this function is selected heating operation and the automatic COOL HEAT operation are cancelled b8 Automatic COOL HEAT operation This function allows the automatic change from the cooling to the heating mode for the units with the same refrigerant cycle N O TE T...

Page 246: ...s used to increase the fan speed when the thermostat reaches the set temperature in heating using function C5 N OT E The fan speed does not increase when the thermostat is switched off with the function setting C5 C7 Cancellation of the forced compressor operation for at least three minutes This function is used when b3 forced compressor operation for at least 3 minutes must be cancelled N OT E In...

Page 247: ...ngle This function is useful when the louver swing angle air discharge angle must be changed Setting condition Louver swing angle 00 Approx 30 to 60 01 Approx 30 to 50 02 Approx 40 to 60 d1 Power supply ON OFF 1 This function stores the unit settings in the event of a power cut The unit is restarted when the power is re established C AUTION When this function is used without anyone controlling the...

Page 248: ...op in the air temperature by decreasing the fan speed apart from the settings on the remote control d6 Room temperature control for energy saving This function is useful when energy must be saved automatically The outdoor air temperature thermistor detects that the air conditioning charge is low in line with the outdoor temperature d7 Not used E1 KPI ventilation mode This function is used to set t...

Page 249: ... e g it is rinsed with drainage water Ed Not available EE Automatic fan speed control This function is useful to economise the operating time and limit the unit operation by automatically controlling the fan speed when the room temperature is close to the set temperature N O TE This function is available for PC ART and all indoor units except RPI 8 0 10 0 FSN2E F1 Automatic OFF timer setting PC AR...

Page 250: ...lied within upper and lower limit for the set temperature F4 Automatic reset time PC ARF Not available PC ART This function is used to set the automatic reset time with the temperature setting F5 Automatic reset temperature for cooling PC ARF Not available PC ART This function is used to set automatic temperature reset in FAN COOL DRY modes F6 Automatic reset temperature for heating Not available ...

Page 251: ...ion for timer PC ART Not available PC ARF This function is used to lock timer activation H1 Maintenance alarms PC ART Not available PC ARF This function is used to display or hide maintenance alarms H2 Automatic control indication PC ART Indication of hot start PC ARF This function is used to display or hide the automatic control indication H3 Operation mode change restriction PC ART Not available...

Page 252: ...ancellation 00 Normal temperature setting 4 C 01 Cancelled temperature setting 02 Temperature setting 2 C 1 b8 Simultaneous cooling heating mode 00 Disabled 01 Enabled C5 Increase of indoor fan 00 Disabled 01 High 1 02 High 2 C8 Remote control thermostat 2 00 Disabled 01 Change from indoor inlet thermistor to remote control thermostat 02 Unit control using the average value of the indoor inlet the...

Page 253: ...0 Disabled 01 Enabled 1 Some indoor units do not accept setting 02 2 If installed next to a bedside table use setting 00 3 Applicable to FAN COOL and DRY modes 4 Applicable to HEAT mode 5 Setting 01 is only available when a remote control is used Do not use this setting when two controls main secondary are used N O TE When several indoor units are connected the same settings apply to them all To c...

Page 254: ...6 3 5 Optional functions on wireless remote controls PC ALH3 PC ALHZF Secondary receiver setting To enable this setting enable terminal 1 on the DIP switch ...

Page 255: ...4 7 1 1 Check points 244 7 1 2 Check procedure 244 7 2 Test procedure using the remote control 246 7 2 1 PC ART remote control 246 7 2 2 PC ARF remote control 247 7 3 Test procedure using the wireless remote control 250 7 3 1 PC LH3A PC LH3B wireless remote control 250 7 4 Test run check list 251 ...

Page 256: ...k that the outdoor unit stop valves are fully open If so start the system 3 Check that the power supply switch has been on for over 12 hours to heat up the compressor oil 7 1 2 Check procedure Check 1 The gas and liquid line stop valves are fully open 2 That there are no refrigerant leaks N OT E Flare nuts may sometimes loosen due to vibrations during transportation 3 Refrigerant piping and wiring...

Page 257: ...Outdoor DB 0 C and higher Heating operation a Indoor DB27 C and below 14 Use shielded cables for the installation to avoid electrical noise This must be less than 1000 m in length and meet with national and local regulations 15 Disconnect the KPI unit if it is connected to the indoor unit control Otherwise the unit will not carry out the test run ...

Page 258: ...tion is incorrect The power line connection wires are incorrect or loose a The connection between the remote control and the unit is correct b Remote control cable connection points c Remote control cable connector contact d Adjustment of the screws on each terminal board The number on the connected unit counter is incorrect The unit number setting is incorrect The control cable connection bet wee...

Page 259: ... is triggered Use the alarm code table in the service manual to check this service personnel are respon sible for this check The on off LED flickers once every sec And the unit num ber 00 the alarm code dd and unit code E 00 flicker The unit does not start The remote control cable con nection between the indoor units is correct See the fault table in the tech nical catalogue this must be performed...

Page 260: ...ly for indoor unit is not turned ON or incorrect wiring Incorrect connectionn of connecting cable between indoor u nits or incorrect connection of controller cable Incorrect setting of rotary switch and dip switch the setting is overlapped on the indoor units PCB b Press run stop to start the test run c Press and set each item 5 Press run stop Start the test run when indicatin the air flow volume ...

Page 261: ... model code and connected number of indoor units will be displayed on the LCD as shown in the figure below If the RUN indicator on PC ARF flashes 2 seconds ON 2 seconds OFF it may be a failure in the transmission between the indoor unit and the remote control switch loosening of connector disconnecting wiring or breaking wire etc In this case check the item 8 3 Alarm Code and perform for troublesh...

Page 262: ...ering the indoor unit will not operate because it is starting up Select the TEST RUN mode 1 Press the SET and OFF TIME buttons at the same time for more than 3 seconds The indication on the LCD screen of the remote control must be as follows TEST RUN mode is not operational 2 Set the operation mode by pressing the MODE button TEST RUN mode is operational Start the test run using the RUN STOP butto...

Page 263: ... gas temperature Td _____ C Liquid pipe temperature Te _____ C 6 Check the pressure Discharge pressure Pd _____kg cm2 G Suction pressure Ps kg cm2 G 7 Check the voltage Rated voltage _____V Service voltage L1 L2 _____V L1 L3 _____V L2 L3 _____V Initial voltage _____V Phase imbalance 1 V Vm 8 Check the compressor inlet operating current Inlet _____kW Suction pressure _____kW 9 Is the refrigerant ch...

Page 264: ...7 Test run 252 SMGB0077 rev 0 01 2013 ...

Page 265: ...r unit PCB for RPK only Preliminary information 254 8 2 Electronic expansion valve check procedure 255 8 3 Procedure for checking fan motors in indoor units 256 8 4 Inspection of other components 259 8 5 Outdoor and indoor alarm codes 260 8 6 DX Interface EXV 2 0 10 0 E1 or KPI E H X 3E alarm codes 262 ...

Page 266: ...elect the operating mode see below Analogue test Relay test 5 On completion of the self check switch off the power supply and restart the DIP switch Self check procedures RPK FN H 2M Check point Mode status Confirmation method Start the expansion valve and the automatic louver The expansion valve fully open fully closed Louver stopped horizontally Analogue test If the air inlet temperature thermis...

Page 267: ...e temperature of the piping in the heating process Failu re of the temperature to rise indicates a fault Locked slightly open The following conditions indicate a fault Where the freeze protection thermistor temperature is lower than the intake air temperature Where the unit being inspected stops and other units continue operating in cooling mode Locked fully open ...

Page 268: ...3 RCI 3 0FSN3 57 W DC motor RCI 4 0FSN3 RCI 5 0FSN3 RCI 6 0FSN3 127 W DC MOTOR RCI 1 0FSN3Ei RCI 1 5FSN3Ei RCI 2 0FSN3Ei RCI 3 0FSN3Ei 56 W DC motor RCI 4 0FSN3Ei RCI 5 0FSN3Ei RCI 6 0FSN3Ei 108 W DC motor RCIM 0 8FSN2 RCIM 1 0FSN2 RCIM 1 5FSN2 RCIM 2 0FSN2 52 W DC motor RCD 1 0FSN2 RCD 1 5FSN2 RCD 2 0FSN2 35 W BLK1 3RED RED3 5WHT 159 00 92 00 to 20 C RCD 2 5FSN2 RCD 3 0FSN2 55 W BLK1 3RED RED3 5W...

Page 269: ... 16 90 15 80 15 80 63 60 to 20 C RPC 4 0FSN2E RPC 5 0FSN2E RPC 6 0FSN2E 180 W BLK1 2RED RED2 3YEL YEL3 4GRY RED2 6WHT 32 10 24 50 24 50 44 70 to 25 C RPI M 0 8FSN4E DU RPI M 1 0FSN4E DU RPI M 1 5FSN4E DU RPI 2 0FSN4E 60 W DC motor RPI 2 5FSN4E RPI 3 0FSN4E 150 W RPI 4 0FSN4E RPI 5 0FSN4E RPI 6 0FSN4E 250 W RPI 8 10FSN3E 1065 W BLK1 2RED RED2 3BLU BLU3 4GRY GRY4 5YEL RED2 6WHT 5 00 0 75 0 75 0 75 9...

Page 270: ...H 3M RPK 1 5FSN H 3M RPK 2 0FSN3M RPK 2 5FSN3M RPK 3 0FSN3M RPK 4 0FSN3M 40 W DC motor RPF I 1 0FSN2E RPF I 1 5FSN2E 28 W BLK1 2RED RED2 3WHT WHT3 4BLU BLU4 5ORN ORN5 6YEL 231 70 198 70 136 20 71 20 202 40 to 20 C RPF I 2 0FSN2E RPF I 2 5FSN2E 45 W BLK1 2RED RED2 3WHT WHT3 4BLU BLU4 5ORN ORN5 6YEL 97 90 138 10 61 60 35 20 61 00 to 20 C ...

Page 271: ...0077 rev 0 01 2013 8 4 Inspection of other components Component name Unit model Model code Resistance MΩ Drain motor RCI FSN3 TBC TBC RCI FSN3Ei APD 1403S 100 RCIM FSN2 PSB 12 A HHT 2 100 RPI M FSN4E RCD FSN2E KJV 1004 347 to 21ºC ...

Page 272: ...tes 11 Sensor on indoor unit Air inlet thermistor Failure of thermistor sensor connection 12 Air outlet thermistor 13 Freeze protection thermistor 14 Gas piping thermistor 16 Sensor on indoor unit Remote thermistor Failure of thermistor 17 Thermistor of RCS Failure of thermistor 19 Activation of the protection device for the indoor fan motor Failure of fan motor 20 Sensor on outdoor unit Compresso...

Page 273: ...re protection from vacuum operation Shortage or leakage of refrigerant piping clogging expan sion valve close locked fan motor locked 48 Inverter Abnormality of current sensor for inverter Failure of DIP IPM heat exchanger clogged locked com pressor EVI EVO failure or overcharge 51 Abnormality of Current Sensor for Inverter Failure of control PCB inverter module 53 Protection activation of inverte...

Page 274: ...nected broken or short circuited connector 17 o Indoor Air outlet DX Coil thermistor Tout coil Loose disconnected broken or short circuited connector 18 o o o Indoor Indoor RA fan protection device activation for KP Fan motor overheating locking 19 o o o Indoor Indoor OA fan protection device activation for KPI or DX KIT2 Fan Fan motor overheating locking 31 o o System Incorrect setting of outdoor...

Page 275: ... 0 FSN2 272 9 6 RPC 2 0 6 0 FSN2E 274 9 7 RPI 0 8 1 5 FSN4E 276 9 8 RPI 2 0 3 0 FSN4E 278 9 9 RPI 4 0 6 0 FSN4E 280 9 10 RPI 8 0 10 0 FSN3E 282 9 11 RPIM 0 8 1 5 FSN4E DU 284 9 12 RPK 0 8 1 0 FSN H 3M 286 9 13 RPK 1 5FSN H 3M 288 9 14 RPK 2 0 4 0 FSN3M 290 9 15 RPF 1 0 2 5 FSN2E 292 9 16 RPFI 1 0 2 5 FSN2E 294 9 17 KPI 252 2002 E H 3E and KPI 502 1002 X3E 296 9 18 DX Interface 298 ...

Page 276: ...9 Spare parts 264 SMGB0077 rev 0 01 2013 9 1 RCI 1 0 6 0 FSN3 SPN201201 ...

Page 277: ...or expansion valve 7 Support plate 8 Pipe cover assy 9 Fan motor 10 Turbo fan 11 Drain pan assy 12 Bell mouth assy 13 E box cover 14 Thermistor For air inlet THM1 15 Thermistor For air outlet THM2 16 Thermistor For freeze protection THM3 17 Thermistor For gas pipe THM5 18 Electrical box 19 Printed circuit board PCB1 20 Terminal board TB1 21 Terminal board TB2 22 Wiring AS For connecting air panel ...

Page 278: ...9 Spare parts 266 SMGB0077 rev 0 01 2013 9 2 RCI 1 0 1 6 FSN3Ei EPN 201204A ...

Page 279: ...stor Gas pipe 9 Thermistor Liquid pipe 10 Expansion Valve 11 Air Filter 12 Air Grille Assy 13 Grille Knob 14 Turbo Fan Fan runner 15 Heat Exchanger Assembly 16 Spacer 17 CP Cover With logo 18 CP Cover Without logo 19 Fan Motor 20 Drain Pump Discharge mechanism 21 AS Motor Assembly 22 Printed Circuit Board PI113 Assy main PCB 23 Printed Circuit Board PI979 Assy for noise protection 24 Float Switch ...

Page 280: ...9 Spare parts 268 SMGB0077 rev 0 01 2013 9 3 RCIM 0 8 2 0 FSN2 Electr ical parts Drawing number EPN 0606A 3B Optional ...

Page 281: ...tor THM5 gas U21 Expansion valve U31 Air filter For air panel P N23WAM U34 Air grille For air panel P N23WAM U35A Knob For air panel P N23WAM U35B Knob For air panel P N23WAM U36 Runner U41A B Heat exchanger Assembly U65 Spacer For PCB U71A Fan motor 52W U71B Fan motor Discharge mechanism U71C AS motor For air panel P N23WAM U82 Transformer U85A Printed circuit board Main U85B Printed circuit boar...

Page 282: ...9 Spare parts 270 SMGB0077 rev 0 01 2013 9 4 RCD 1 0 3 0 FSN2 ...

Page 283: ...reezing U15D Thermistor THM5 thermistor for gas U21 Expansion valve U31 Air filter For air panel P N23DWA U34 Air grille For air panel P N23DWA with air filter U36 Fan U41 Heat exchanger U65 Plastic material U71A Motor 35W fan U71B Motor For the discharge drain mechanism U71C Motor For the P N23DWA motor rotation assembly U82 Transformer U85A Printed circuit board Main PCB U85B Printed circuit boa...

Page 284: ...9 Spare parts 272 SMGB0077 rev 0 01 2013 9 5 RCD 4 0 5 0 FSN2 ...

Page 285: ...zing U15D Thermistor THM5 thermistor for gas U21 Expansion valve U31 Air filter For air panel P N23DWA U34 Air grille For air panel P N23DWA with air filter U36 Fan U41 Heat exchanger U65 Plastic material U71A Motor 355W fan U71B Motor 55W on other side U71B Motor for the discharge drain mechanism U71C Motor For the P N23DWA motor rotation assembly U82 Transformer U85A Printed circuit board Main P...

Page 286: ...9 Spare parts 274 SMGB0077 rev 0 01 2013 9 6 RPC 2 0 6 0 FSN2E ...

Page 287: ...t U15D Thermistor THM2 thermistor for air outlet U21 Expansion valve U31 Air filter U33 Bearing U34A Air inlet grille Inlet air U34B Grille assembly Outlet air U37 Fan frame U41 Heat exchanger Assembly U64 Heat exchanger Assembly U64 Boss U65A Spacer U65B Push spacer U65C Grille knob U65D Grille support U71A Fan motor U71B AS motor U82 Transformer U85 Printed circuit board U98A Left cover Left par...

Page 288: ...9 Spare parts 276 SMGB0077 rev 0 01 2013 9 7 RPI 0 8 1 5 FSN4E ...

Page 289: ...iquid Pipe 6 Thermistor For Gas Pipe 7 Thermistor For Inlet Air 8 Thermistor For Outlet Air 9 Expansion Valve Without Coil 10 Expansion Valve Coil 11 Filter 12 Runner 13 Fan Casing 14 Heat Exchanger Assembly 15 Spacer For PCB fixing 16 Drain Pump Discharge Mechanism 17 Fan Motor 18 Fan Assy Assembly Motor Stay Runners Casings 19 PCB1 Control PCB 20 PCB2 Power PCB 21 Float Switch 22 Drain Pan Assem...

Page 290: ...9 Spare parts 278 SMGB0077 rev 0 01 2013 9 8 RPI 2 0 3 0 FSN4E EPN 201208A 1B ...

Page 291: ...let Air 8 Thermistor For Outlet Air 9 Expansion Valve 9 Expansion Valve 9 Expansion Valve 10 Expansion Valve Coil 11 Filter 11 Filter 12 Fan Casing Runner Fan Casing Runner 13 Heat Exchanger Assembly 13 Heat Exchanger Assembly 13 Heat Exchanger Assembly 13 Heat Exchanger Assembly 14 Spacer For PCB Fixing 15 Push Spacer For PCB Fixing 16 Drain Pump Discharge Mechanism 17 Fan Motor 17 Fan Motor 17 F...

Page 292: ...9 Spare parts 280 SMGB0077 rev 0 01 2013 9 9 RPI 4 0 6 0 FSN4E EPN 201208A 2B ...

Page 293: ...let Air 8 Thermistor For Outlet Air 9 Expansion Valve 9 Expansion Valve 9 Expansion Valve 10 Expansion Valve Coil 11 Filter 11 Filter 12 Fan Casing Runner Fan Casing Runner 13 Heat Exchanger Assembly 13 Heat Exchanger Assembly 13 Heat Exchanger Assembly 13 Heat Exchanger Assembly 14 Spacer For PCB Fixing 15 Push Spacer For PCB Fixing 16 Drain Pump Discharge Mechanism 17 Fan Motor 17 Fan Motor 17 F...

Page 294: ...9 Spare parts 282 SMGB0077 rev 0 01 2013 9 10 RPI 8 0 10 0 FSN3E EPN 201108A 1B ...

Page 295: ...uid Pipe 7 Thermistor For Gas Pipe 8 Thermistor For Inlet Air 9 Thermistor For Outlet Air 10 Fuse Holder 11 Expansion Valve 11 Expansion Valve 12 Filter 13 Fan Casing Runner R Fan Casing Runner Right 14 Fan Casing Runner L Fan Casing Runner Left 15 Heat Exchanger Assembly 15 Heat Exchanger Assembly 16 Spacer For PCB Fixing 17 Fan Assy Stay Base Motor Cassings Runners 18 Fan Motor 19 Power Relay 20...

Page 296: ...9 Spare parts 284 SMGB0077 rev 0 01 2013 9 11 RPIM 0 8 1 5 FSN4E DU EPN 201206A 2B ...

Page 297: ...hermistor For Gas Pipe 7 Thermistor For Inlet Air 7 Thermistor For Inlet Air 8 Thermistor For Outlet Air 8 Thermistor For Outlet Air 9 Expansion Valve Without Coil 10 Expansion Valve Coil 11 Filter 11 Filter 12 Runner 13 Fan Casing 13 Runner Fan Casing Assy Fan Casing Runner 14 Heat Exchanger Assembly 14 Heat Exchanger Assembly 14 Heat Exchanger Assembly 14 Heat Exchanger Assembly 15 Spacer For PC...

Page 298: ...9 Spare parts 286 SMGB0077 rev 0 01 2013 9 12 RPK 0 8 1 0 FSN H 3M ...

Page 299: ...protection THM3 8 Thermistor For gas line THM5 9 Fan motor DC 38W 10 Motor clamp 11 Fan 12 Bearing 13 Bottom base 14 Corner cover 15 Drain hose 16 Pipe cover 17 Cabinet panel assy 18 Filter 19 Drain pan assy 20 Plate 21 AS Motor for Auto Swing Louver 22 PCB PI 121 S for Control 23 PCB for Switch 24 PCB for Receiver with Indicator 25 Terminal board for Power Source Circuit 26 Terminal board for Con...

Page 300: ...9 Spare parts 288 SMGB0077 rev 0 01 2013 9 13 RPK 1 5FSN H 3M ...

Page 301: ...ction THM3 8 Thermistor For gas line THM5 9 Fan motor DC 38W 10 Motor clamp 11 Fan 12 Bearing 13 Bottom base 14 Corner cover 15 Drain hose 16 Pipe cover 17 Cabinet panel assy 18 Filter 19 Drain pan assy 20 Plate 21 AS Motor for Auto Swing Louver 22 PCB PI 121 S for Control 23 PCB for Switch 24 PCB for Receiver with Indicator 25 Terminal board for Power Source Circuit 26 Terminal board for Control ...

Page 302: ...9 Spare parts 290 SMGB0077 rev 0 01 2013 9 14 RPK 2 0 4 0 FSN3M ...

Page 303: ...otor DC 38W 10 Motor Clamp 11 Fan 12 Bearing 13 Cabinet Assy 14 Corner Cover 15 Pipe Fixing Plate 16 Drain Hose 17 Pipe Cover 18 Cabinet Panel Assy 19 Filter 20 Receiver Cover 21 Drain Pan Assy 22 Plate 23 AS Motor for Auto Swing Louver 24 PCB S PI 121 S for Control 25 PCB S for Receiver 26 PCB S for Switch 27 PCB S for Indicator 28 Terminal Board for Power Source Circuit 29 Terminal Board for Con...

Page 304: ...9 Spare parts 292 SMGB0077 rev 0 01 2013 9 15 RPF 1 0 2 5 FSN2E ...

Page 305: ...HM3 Liquid freeze protection U15D Thermistor THM2 Air Outlet U21 Expansion valve U31 Air filter U34A D grille Air outlet U34B Air inlet grille Air inlet U34C Air inlet grille Air inlet U36 Runner U37 Fan casing U41 Heat exchanger Assembly U65A Spacer For fixing PCB U65B Push spacer For fixing PCB U65C Grille knob U71 Fan motor U82 Transformer U85 Printed circuit board U98A Back cover Assembly U98B...

Page 306: ...9 Spare parts 294 SMGB0077 rev 0 01 2013 9 16 RPFI 1 0 2 5 FSN2E ...

Page 307: ...or THM1 thermistor for air inlet U15B Thermistor THM5 thermistor for gas pipe U15C Thermistor THM3 thermistor for liquid piping U15D Thermistor THM2 thermistor for air outlet U21 Expansion valve U31 Air filter U36 Runner U37 Fan frame U41 Heat exchanger Assembly U65A Spacer Attached to the PCB U65B Push spacer Attached to the PCB U71 Fan motor U82 Transformer U85 Printed circuit board U98A Rear co...

Page 308: ...9 Spare parts 296 SMGB0077 rev 0 01 2013 9 17 KPI 252 2002 E H 3E and KPI 502 1002 X3E ...

Page 309: ...ger Aluminium HE for KPI XXX H3E 8 Fan Service Cover 9 Heat Exchanger Cover Clamp 10 E Box Cover 11 Fuse 2 4 A 6x32 Fan Protection 12 Transformer Main Transformer 13 Printed Circuit Board PI073 14 Printed Circuit Board 15 Terminal Board 16 Fuse Holder 17 Thermistor Blue Socket 18 Thermistor Red Socket 19 Spacer Main PCB Holder 20 Push Spacer 21 Electrical Box 22 Dx coil service cover 23 Float swit...

Page 310: ...9 Spare parts 298 SMGB0077 rev 0 01 2013 9 18 DX Interface ...

Page 311: ...9 Spare parts 299 9 SMGB0077 rev 0 01 2013 ...

Page 312: ... TERMINAL BOARD 9 TRANSFORMER 10 PUSH SPACER For PCB Fixing 11 THERMISTOR THM3 For liquid Pipe Black socket 12 THERMISTOR THM5 For Gas Pipe Yellow socket 13 THERMISTOR THM1 For Inlet Air Blue socket 14 THERMISTOR THM2 For Outlet Air Red socket 15 PACKING GLAND WASHER 16 COVER 17 E BOX FINAL ASSY Assembly Components Harness 18 EXP VALVE ASSY Assembly 19 PRINTED CIRCUIT BOARD 20 EXP VALVE KIT ASSY A...

Page 313: ...r inlet grille 316 10 2 3 Removal of the electrical box cover 317 10 2 4 Removal of the optional air panel 318 10 2 5 Removal of the fan duct and motor 319 10 2 6 Bellmouth removal 319 10 2 7 Removal of the printed circuit board PCB 320 10 2 8 Removal of the drain pan 321 10 2 9 Removal of the drain mechanism 321 10 2 10 Removal of the float switch 322 10 2 11 Removal of the thermistors from the l...

Page 314: ...emoval of the air filter 342 10 5 2 Removal of the side panel 342 10 5 3 Removal of the air outlet grille 343 10 5 4 Removal of the fan motor 343 10 5 5 Removal of the fan shaft support 344 10 5 6 Removal of the coupling 345 10 5 7 Removal of the automatic louver motor 345 10 5 8 Removal of the thermistors from the liquid and gas pipes 345 10 5 9 Removal of the printed circuit board PCB 346 10 6 R...

Page 315: ...g Electrical Box 372 10 9 8 Removing AS Motor 374 10 9 9 Removing Drain Pan 375 10 9 10 Removing Heat Exchanger 377 10 9 11 Removing Thermistors for Freeze Protection Gas Pipe Outlet Air and Inlet Air 380 10 9 12 Removing Fan and Fan Motor 384 10 9 13 Removing Electronic Expansion Valve Coi 385 10 9 14 Removing Horizontal Louver 387 10 10 RPF I 1 0 2 5 389 10 10 1 Removal of the air inlet grille 3...

Page 316: ... inlet grille keeping it inclined Remove the hooks of air filter from the air inlet grille and remove the air filter 3 Remove the supporting string from the air panel After lifting the air inlet grille keeping it inclined draw the air inlet grille forward to remove 4 When attaching the air inlet grille the supporting string shall be attached to the air panel C A U TION TURN OFF all power source sw...

Page 317: ...cal box appears when opening the air inlet grille Remove the fixing screw for electrical box cover and open the electrical box 2 The electrical box cover can hook onto the electrical box during the maintenance C A U T I O N Pay attention not to fall the electrical box cover Electrical Box Screw ...

Page 318: ...ly hook hinges of air panel 2 portions onto hooks of unit 2 portions Then remove the air panel after unhooking two 2 hinges from the two 2 hooks Hook Hinge Unit Air Panel P S HS HB HITACHI AIR CONDITIONER Model THM5 THM3 CN11 CN2 CN1 PCN6 CN17 THM1 THM2 PCN4 S N R L1 2 1 B A K D R AI N PS OA OA INLET D N112 2 1 B A L R S LED3 LED1 RSW2 CN6 HA CN14 CN4 CN3 CN9 CN10 IC1 DSW5 CN11 CN34 DSW4 TP ON 1 2...

Page 319: ... Motor Remove the turbo fan after the fixing nut for the turbo fan is removed Remove the fan motor after three 3 fixing nuts for the fan motor are removed When reassembling the tightening torque for nuts shall be approximately 8N m N O TE When reassembling temporally fix the fixing screws 1 to 5 and align the center of turbo fan and bell mouth to match Tighten securely after keeping the clearance ...

Page 320: ... fixed by six 6 holders Bend the holders B by finger and raise the PCB1 Remove the PCB1 from the holders A by drawing it towards arrow direction in the figure below Indoor Unit PCB Electrical Box Holder B Screw for Earth Wire PCB1 PCB1 Holder Bend the holder by finger Holder A N OT E Do not touch electrical parts on PCB1 Pay attention not to apply an excessive force to PCB1 It may cause failure of...

Page 321: ...er In addition check the clogging at the drain hole 5 Removing Drain Pan Remove four 4 bolts fixing the drain pan Remove the drain pan N O TE When attaching the rubber plug again push in it into the drain hole by using Phillips Screwdriver etc after the rubber plug is wet by water Seal the rubber plug after the silicone sealant is applied around the flange part of rubber plug Bolt for Fixing Drain...

Page 322: ...emove two 2 fixing screws for drain up mechanism When removing hold the drain up mechanism by hand in order not to fall 6 Remove the drain up mechanism N OT E When reassembling wrap up the wires for float switch and drain up mechanism together by the insulation Fix securely them to the original position When attaching the drain pan again pay attention not to pull the wires strongly Otherwise the i...

Page 323: ...osening the fixing screw for the fixing base N O TE When reassembling wrap up the wires for float switch and drain up mechanism together by the insulation Fix securely them to the original position When attaching the drain pan again pay attention not to pull the wires strongly Otherwise the insulation attaching at the cabinet may be peeled N O TE Pay attention to handle the float switch If it is d...

Page 324: ...e thermistor When reassembling securely fix lead wires for fan motor 2 pipe thermistors and expansion valve together by the cord clamp attaching at the partition plate and attach each thermistor to the original position Partition Plate Wire for Expansion Valve Lead Wires for Fan Motor Lead Wires for Gas Pipe Thermistor Fixing Screws for Partition Plate Fixing Screws for Partition Plate Lead Wires ...

Page 325: ...re located each 180o The hooks shall catch onto the projections completely though the rotation direction does not affect to the operation If the hooks do not completely catch onto the projections it may cause malfunction of expansion valve coil 8 If the replacement work is completed fix the wire for expansion valve near the expansion valve coil by plastic band At this time fix the lead wires for e...

Page 326: ...otors from the louvers 6 Remove each connector connected to the motors N OT E When reassembling securely catch the C shaped part of louver spring onto the hooking part of louver Additionally insert the L shaped part of louver spring into the hole of louver bearing Rotate the louver bearing 360o clockwise before fixing the screw for louver bearing Packing Guide Guide Fixing Screw Corner Cover Air P...

Page 327: ...ccording to the item Removing Auto Louver Motors 6 Remove each louver bearing and louver spring N O TE When reassembling securely catch the C shaped part of louver spring onto the hooking part of louver Additionally insert the L shaped part of louver spring into the hole of louver bearing Rotate the louver bearing 360o clockwise before fixing the screw for louver bearing Air Panel Packing Guide Mo...

Page 328: ...rrows and open the air inlet grille Remove the filter from the grille by holding onto the lower part of the grille and the filter and detaching the blocked part 10 2 2 Removal of the air inlet grille Nº Part 1 Fan 2 Air inlet grille 3 Long lasting filter 4 Chain 5 Hooks Lift the grille approximately 30 and release the securing chain Remove the grille by sliding it upwards and forwards N OT E If th...

Page 329: ...ev 0 01 2013 10 2 3 Removal of the electrical box cover Nº Part 1 Screws 2 Electrical box cover The electrical box can be removed by opening the air inlet grille Remove the two set screws from the electrical box cover and remove it ...

Page 330: ...r motor in the main indoor PCB Remove the air inlet grille from the optional air panel Remove the four panels from the corners as shown in the figure Insert a screwdriver or a coin into the three grooves in the corner and release the attachment from each corner Remove the four screws from the optional air panel and secure to the drain pan hinge as shown in the figure Then remove the optional air p...

Page 331: ...or PCN6 and the float switch connector CN14 from the PCB 2 Loosen the screw from the wire clamp and remove 3 Remove the three set screws from the electrical box and remove carefully 10 2 6 Bellmouth removal Remove the three screws securing the fan duct to the drain pan and remove it Remove the duct by removing the nut and washer securing it Disconnect the earth wire from the fan motor only for 4 5...

Page 332: ...chapter Removal of the electrical box cover Separate all of the wiring connectors on the printed circuit boards PCB Remove the PCB by pressing carefully on the support tabs with long tipped pliers as shown in the figure C A U TION Do not touch the electrical components of the PCB Do not apply force to the PCB as this could damage it Pay special attention to the position of the connectors on the PC...

Page 333: ...or as indicated in chapter Bellmouth removal Check that the drainage hole is not blocked C AUTION Do not use a knife or similar to remove the rubber plug as this could damage it Remove the drain pan after removing the four set screws 10 2 9 Removal of the drain mechanism Nº Part 1 Securing plate 2 Screws 3 Location of the pipe flange 4 Drain hose 5 Drain mechanism Remove the drain pan as indicated...

Page 334: ... the thermistors from the liquid and gas pipes Nº Part 1 Thermistor securing plate 2 Thermistor Remove the optional air panel in line with the instructions given in chapter Removal of the optional air panel Remove the fan duct in line with the instructions given in chapter Bellmouth removal Remove the drain pan as indicated in chapter Removal of the drain pan Remove the butyl sheet covering the th...

Page 335: ...e N O TE Do not hold onto the motor when loosening the nut with a wrench The base of the transmission part could become loose and break Loosen the nut several turns to release the transmission part from the bolt Prepare the new transmission part spare part with the position of the transmission wheel transmission bolt already adjusted N O TE Pay attention to removal while replacing and prevent dust...

Page 336: ...ection for the electronic expansion valve coil does not touch another pipe or the side plate of the electrical box Once replaced fit the electronic expansion valve in the reverse manner as indicated for the removal process Position the butyl sheet attaching it correctly to the valve N OT E Check that the cables do not touch the fan duct after installation is complete 10 2 13 Removal of the automat...

Page 337: ...2 Removal of the air inlet grille Lift the grille approximately 45 and release the securing chain Remove the grille by sliding it upwards and forwards N O TE If the chain is released and the grille angle is at 90 the grille cannot be removed Furthermore the plastic supports could break If the louvers are to be moved for example for cleaning purposes select automatic swing mode to move the four lou...

Page 338: ...he arrow b Then remove the four corner covers from the optional air panel by sliding them in the direction indicated by the arrow c Loosen the two screws securing the air panel to the indoor unit Then remove the other two screws remove the screw located next to the PIPE SIDE indication and the one located on the opposite side Detach the hinge from the two position hooks turning the panel in the di...

Page 339: ...03 7 Fan motor connector CN201 Remove the air inlet grille as indicated in chapters Removal of the air filter and Removal of the air inlet grille Remove the electrical box as follows 1 Remove the electrical box cover 2 Disconnect the thermistors THM2 the drainage motor connector PCN6 the float switch connector CN14 the automatic louver connector CN17 and the fan motor connector PCN203 CN201 from t...

Page 340: ...val of the air inlet grille Remove the electrical box cover as indicated in chapter Removal of the electrical box Separate all of the wiring connectors on the printed circuit boards PCB Carefully remove the securing supports from the control PCB six from the power supply PCB four and from the noise filter PCB four by pressing carefully on the support tabs with long tipped pliers as shown in the fi...

Page 341: ...to the drain pan and remove the support Empty the pan of water by removing the rubber plug C AUTION The plug is sealed with silicone but can be easily removed by pulling on the bottom of it Do not use a knife or similar to remove the rubber plug as this could damage it Do not remove or damage the lower plug insulation when refitting Check that the drainage hole is not blocked Remove the drain pan ...

Page 342: ...the hose and remove the drain hose Remove the earthing wiring screw Hold the drain mechanism and remove the screw from the mechanism securing plate Remove the mechanism with the securing plate N OT E When installing fit the drain hose as far as possible in the pump ...

Page 343: ...n refitting make sure the hook is fitted into the groove in the drain pan and screw into place The torque value of the resin nut is 0 3 0 4 Nm If the torque value is higher the nut will be damaged 10 3 11 Removal of the thermistors from the liquid and gas pipes Remove the optional air panel in line with the instructions given in chapter Removal of the optional air panel Remove the fan duct in line...

Page 344: ...the optional air panel in line with the instructions given in chapter Removal of the optional air panel Remove the fan duct and the fan as indicated in chapter Removal of the fan duct and the fan Remove the drain pan as indicated in chapter Removal of the drain pan Remove the electronic expansion valve butyl sheet Secure the body of the valve using an appropriate wrench and loosen the nut with ano...

Page 345: ...value 12 Nm 15 Nm N O TE Do not apply significant force to the motor such as rotational torque or bending load while holding it with your hand and tightening the nut The direction of the eccentric part of the motor is fitted in the same way as the expansion valve Although the motor is facing away from the piping connections on the valve body modification of this direction does not affect the valve...

Page 346: ... optional air panel Separate the connector from the AS motor Remove the screw securing the louver and one set screw on the AS motor Remove the AS motor pulling carefully with the louver and then sliding it out After removing the AS motor refit the louver adjusting the stop position as indicated in the figure cut D on the shaft of the AS motor must coincide with cut D on the louver ...

Page 347: ...ked part The grille can be removed by lifting and pulling it forwards from the chain to release it 10 4 2 Removal of the electrical box Open the air inlet grille Loosen the screw securing the electrical box panel and remove it 10 4 3 Removal of the optional air panel Open the air inlet grille Remove the electrical box panel Remove the connector CN17 of the automatic louver on the indoor unit PCB R...

Page 348: ...Separate the connectors from each cable in the electrical box Remove the two set screws from the electrical box and turn around 90 downwards the electrical box is attached by the hinge N OT E Do not remove the set screw from the hinge 4 and 5 HP models remove the screw from the securing plate and remove Remove the two screws securing the bellmouth to the drain pan securing plates and remove it ...

Page 349: ...AUTION Do not touch the electrical components of the PCB Do not apply force to the PCB as this could damage it The sealed earthing cable and the transformer are secured by a screw When installing be particularly careful not to overtighten the set screw 10 4 6 Removal of the float switch Remove the air inlet grille as indicated in chapter Removal of the long lasting filter and the air inlet grille ...

Page 350: ...mechanism and remove it N OT E When installing fit the drain hose as far as possible in the pump 10 4 8 Removal of the drain pan Remove the air inlet grille as indicated in chapter Removal of the long lasting filter and the air inlet grille Disconnect the cable between the indoor and outdoor unit and separate all of the connectors from the electrical box Remove the fan duct and the fan as indicate...

Page 351: ...lug as this could damage it 10 4 9 Removal of the thermistors from the liquid and gas pipes Remove the air inlet grille as indicated in chapter Removal of the long lasting filter and the air inlet grille Remove the fan duct and the fan as indicated in chapter Removal of the fan duct and the fan Remove the drain pan as indicated in chapter Removal of the drain pan Remove the butyl sheet covering th...

Page 352: ...mage the valve joint with tools Fit the transmission part to the body of the valve hold onto both and make sure their axes coincide before fitting the nut to the valve body bolt Tighten the nut by hand and apply the torque value 12 Nm 15 Nm N OT E Do not apply significant force to the motor such as rotational torque or bending load while holding it with your hand and tightening the nut The directi...

Page 353: ...des of panel C Remove the two screws securing panel C and remove the optional air panel Remove the two screws securing the motor Remove the two stops by lifting the motor by hand in the direction of the arrow N O TE The stops can be removed by pulling them The motor can be separated by removing the connector at the same time Remove the screw securing the handle and cut the plastic tie securing the...

Page 354: ...val of the air filter Press the buttons on the grille backwards Open the air inlet grille downwards Lift the button and remove the filter 10 5 2 Removal of the side panel Pull the side panel forwards Release the hook from the lower part of the panel Lift the side panel ...

Page 355: ... Removal of the side panel Remove the right shaft crank on the air louver Remove the four set screws from the louver and remove it N O TE The louver includes the linkage brackets 10 5 4 Removal of the fan motor Open the air inlet grille as indicated in chapter Removal of the air filter Remove the air inlet clip Separate the indoor fan motor connector ...

Page 356: ...move it Loosen the coupling screws using a wrench Remove the securing flange and remove the fan motor by sliding it backwards C A U TION Hold onto the motor to prevent it from falling 10 5 5 Removal of the fan shaft support Remove the side panel in line with the instructions given in chapter Removal of the side panel Loosen the two bolts securing the support and the shaft using a hexagonal wrench ...

Page 357: ... chapter Removal of the side panel Remove the bolts M4 from the AS motor assembly and remove the right shaft of the discharge air grille C AUTION Be particularly careful not to damage the AS motor Remove the two bolts securing the automatic louver motor and remove the AS motor assembly securing plate Remove the bolt securing the automatic louver motor shaft and the AS pinion N O TE Torque value of...

Page 358: ...emove the thermistors from the liquid and gas pipe 10 5 9 Removal of the printed circuit board PCB Open the air inlet panel as indicated in chapter Removal of the air filter Separate the connector from the fan motor wiring Remove the screws securing the box and attach to the lower frame C A U TION Hold onto the electrical box to prevent it from falling Remove the panel ...

Page 359: ...pressing carefully on the support tabs with long tipped pliers C AUTION Do not touch the electrical components of the PCB Do not apply force to the PCB as this could damage it Pay special attention to the position of the connectors on the PCB An incorrect position during installation may damage the PCB Nº Part 1 Extended support part 2 PCB ...

Page 360: ... RPI 0 8 6 0 FSN4E 10 6 1 Removal of the electrical box Nº Part 1 Location of the electrical box cover RPI 0 8 1 5 FSN4E RPI 2 0 6 0 FSN4E 1 1 Nº Part 1 Set screw 2 Terminal board 3 Transformer 4 PCB RPI 0 8 1 5 FSN4E RPI 2 0 6 01 FSN4E 1 1 2 3 4 ...

Page 361: ... Part 1 Location of the air inlet thermistor N O TE To disconnect and remove the appropriate thermistor previously see the chapter corresponding to the wiring diagrams in this Manual Remove the screws securing the rear cover of the unit Disconnect and remove the thermistor Outlet air thermistor Nº Part 1 Air outlet thermistor N O TE To disconnect and remove the appropriate thermistor previously se...

Page 362: ...ng on the location Both materials are factory supplied Replace them if damaged during maintenance work Remove the electrical box cover Remove the service cover The liquid and gas pipe thermistors are secured to the copper piping by a special clamp Liquid pipe thermistor covered with cork tape Gas pipe thermistor covered with pipe insulation Nº Part 1 Location of the thermistor 2 Location of the th...

Page 363: ...t N O TE If the fan casing is to be fully removed remove the screws securing the other half to the fan motor fixture 10 6 5 Removal of the drain mechanism Nº Part 1 Drain pump N O TE To disconnect and remove the drain mechanism previously see the chapter corresponding to the wiring diagrams in this Manual Remove the drain pump support screws and remove it Nº Part 1 Bolts 2 Drain pump 3 Service cov...

Page 364: ...iagrams in this Manual Remove the drain pump support screws and remove it Loosen the screws securing the float switch to the support Loosen the resin nut securing the float switch and remove it N OT E The torque value of the resin nut is 0 3 0 4 Nm If the torque value is higher the nut will be damaged Nº Part 1 Float switch 10 6 7 Removal of the air filter Nº Part 1 Air filter 2 Screws 3 Air filte...

Page 365: ...ws A and separate the full electrical component support B C AUTION Handle the support carefully to avoid damaging the electrical components 10 7 3 Removal of the inlet and outlet air thermistors Inlet air thermistor Remove the air filter Removal of the air filter N O TE The inlet air thermistor A is located on the left hand side of the air inlet to the unit Remove the electrical box cover Removal ...

Page 366: ...ed on the right hand side of the air outlet from the unit Remove the electrical box cover Removal of the electrical box cover Disconnect and remove the thermistor N OT E To disconnect and remove the appropriate thermistor previously see the chapter corresponding to the wiring diagrams in this Manual Nº Part 1 Tie 2 Cable clamp 3 Thermistor ...

Page 367: ...corresponding to the wiring diagrams in this Manual Black connector liquid thermistor Yellow connector gas thermistor Remove the gas A and liquid B thermistor insulation cover Remove the special clamp holding the thermistor to the copper piping and remove it N O TE When fitting the thermistors remember that they must be secured correctly by the special clamp and completely covered by the previousl...

Page 368: ... A from the electrical box and release it from the support B Remove the screws C on both sides of the fan C A U TION Make sure the fan can be removed correctly without the risk of injuring anyone in the surrounding area The fan is heavy Request the assistance of two operators to hold the fan while it is being removed Remove the screws A on both sides of the fan and remove the unit When fitting con...

Page 369: ...h previously see the chapter corresponding to the wiring diagrams in this Manual Loosen the resin nut securing the float switch A and remove it If the switch support is to be removed remove screws B N O TE The torque value of the resin nut is 0 3 0 4 Nm If the torque value is higher the nut will be damaged 10 7 8 Removal of the air filter Remove the four set screws from the support fixture 1 of th...

Page 370: ...rical box Nº Part 1 Location of the electrical box cover Remove the electrical box cover to access the electrical components Nº Part 1 Set screws 2 Terminal board 3 Transformer 4 PCB Remove the set screws and remove the electrical box from the unit N OT E The electrical box is fitted with a hinge ...

Page 371: ...art 1 Tie 2 Cable clamp 3 Thermistor N O TE To disconnect and remove the appropriate thermistor previously see the chapter corresponding to the wiring diagrams in this Manual Nº Part 1 Location of the air inlet thermistor 2 Rear cover Remove the screws securing the rear cover of the unit Disconnect and remove the thermistor ...

Page 372: ...and gas pipes Nº Part 1 Screws N OT E To disconnect and remove the appropriate thermistor previously see the chapter corresponding to the wiring diagrams in this Manual Cover the thermistors with cork tape or pipe insulation depending on the location Both materials are factory supplied Replace them if damaged during maintenance work Remove the electrical box cover Remove the service cover The liqu...

Page 373: ...er Removal of the inlet and outlet air thermistors Remove the tape located in the centre of the casing Press the locks and remove half of the fan casing Remove the fixture support screws and carefully remove the motor together with the fans Loosen the screws securing the fans to the motor shaft Nº Part 1 Fan casing 2 Lock 3 Fan duct 4 Shaft 5 Fan motor N O TE If the fan casing is to be fully remov...

Page 374: ... the chapter corresponding to the wiring diagrams in this Manual Remove the necessary covers to access the float switch Loosen the screws securing the float switch to the support N OT E The torque value of the resin nut is 0 3 0 4 Nm If the torque value is higher the nut will be damaged Nº Part 1 Float switch Loosen the resin nut securing the float switch and remove it ...

Page 375: ...v 0 01 2013 10 8 6 Removal of the air filter Nº Part 1 Air filter fixture bar Remove the air filter fixture support screws and remove the air filter Nº Part 1 Air filter 2 Screws 3 Air filter fixture bar Pull the air filter downwards ...

Page 376: ...H 3M 1 Remove the air filter according to the Removing Air Filter chapter 2 Open the flat panel fully and slightly extend the right arm shaft outward After the shaft is removed from the front panel pull the flat panel frontward with the right arm shaft slightly extended outward and then remove the flat panel 3 Remove 2 bushes and then 2 screws Pull the lower side of the front panel forward to rele...

Page 377: ...r lap between the front panel and the right side of the drain pan If there is a gap there an air leakage and dew condensation may occur and the dew may drop on the front panel 6 Tighten 2 screws and attach 2 bushes And then mount the air filter 7 Insert the arm shafts on both sides of the flat panel into the holes on the unit body along the guide of the front panel After the flat panel is attached...

Page 378: ...e special care not to be injured by the heat exchanger fins 4 Remove the front panel carefully so that it does not touch the horizontal louver attached to the air outlet Slightly lift the front panel up to release the catches 4 portions on the upper side of the unit Then pull the front panel forward to remove it N O TE When releasing the catches snap sound is heard This is the sound made when the ...

Page 379: ... the guide of the front panel After the flat panel is attached properly close the flat panel ਅ ਛᄩῪ ࡨᚲ Catches on Lower Side of Front Panel Make sure there is no lap between the front panel and the left side of the drain pan Drain Pan Projection Portion for Catches Put 4 catches on the upper side of the unit into the holes on the front panel Drain Pan Attaching flat panel Insert completely the left...

Page 380: ... following components Electrical Box Switch Cover Electrical Box Cover Terminal Board Cover Dip Switch PCB PCB2 Terminal Board Indoor Unit PCB PCB1 PCB for Receiver with Indicator Receiver Cover 8 Electrical Box Switch Cover Terminal Board Cover Dip Switch PCB PCB2 Terminal Board Electrical Box Cover PCB for Receiver Indoor Unit PCB PCB1 ...

Page 381: ... FSN H 3M RPK 2 0 4 0 FSN3M A 1 2 Screw for earth wiring connection Electrical box cover Wire for receiver Kit Terminal board for remote control switch cable Terminal board for power source Fix the wires by cord clamp A B 1 Terminal board for power source Screw for earth wiring connection Wire for receiver Kit Terminal board for remote control switch cable 10 9 5 Remove the switch cover Remove the...

Page 382: ...protection thermistor gas pipe thermistor inlet air thermistor outlet air thermistor transmission remote control switch power source external input output auto louver PCB for receiver with indicator fan motor and expansion valve coil Screw for Electrical Box Cover Screw for Terminal Board Cover Screw for Switch Cover Electrical Box Electrical Box Cover Screw for Electrical Box Cover e Remove 2 spa...

Page 383: ...Transmission TB2 A B 1 c Remove 2 screws for the electrical box stay to remove it d Remove 1 screw for the fixing plate for the terminal board and tilt the board frontward Screw for Fixing Plate for Terminal Board Screw for Electrical Box Stay Electrical Box Stay Fixing Plate for Terminal Board Fixing Plate for Terminal Board e Remove the connectors on the PCB1 for the freeze protection thermistor...

Page 384: ...pansion valve coil as expansion valve relay cord Incline this portion in the direction of the arrow to undo the hooks Spacers on Front Side Spacers on Front Side 2 Portions Spacers on Rear Side 2 Portions 10 9 7 Removing Electrical Box For RPK 0 8 1 5 FSN H 3M 1 Remove the front panel according to the Removing Front Panel chapter 2 Remove 1 screw fixing the terminal board cover to remove it Also r...

Page 385: ...er 3 Then remove the power source wiring the transition wiring and the wiring for the remote control switch from the terminal board 4 Remove the connectors on the PCB1 for the freeze protection thermistor gas pipe thermistor inlet air thermistor outlet air thermistor auto louver PCB for indication PCB for receiver fan motor and expansion valve coil 5 Remove the wirings for the freeze protection th...

Page 386: ...ding to the Removing Front Panel chapter 2 Remove the electrical box fron the cabinet according to the Removing Electrical Box chapter 3 Remove 4 screws fixing 2 AS motors to remove them Then pull the AS motors outward and remove them from the shaft of the horizontal louver 4 When mounting the AS motors insert the shafts of the AS motors into the D cut portions of the horizontal louver Then mount ...

Page 387: ... the figure below to remove it N O TE Before removing the drain pan check that the drain hose is not fixed If the drain hose is firmly fixed the drain pan cannot be removed 4 When mounting the drain pan mount it in the reverse procedure Make sure that the catches fixing the drain pan mentioned in the procedure 3 are fastened Fixing Catch A Fixing Catch C Positions of Fixing Catches for Drain Pan E...

Page 388: ...fixed If the drain hose is firmly fixed the drain pan cannot be removed 5 Remove 3 catches at C and D in the following procedure Apply a force in the direction of the arrow 1 and release 1 catch C fixing the drain pan to the cabinet Then apply a force in the direction of the arrow 2 and release 2 catches D Remove the drain pan 6 When mounting the drain pan mount it in the reverse procedure A B C D...

Page 389: ...ove the flare nuts attached to the rear piping of the heat exchanger to disconnect the pipings Then lift the indoor unit up and draw it frontward to remove it 4 Remove the front panel according to the Removing Front Panel chapter 5 Remove the electrical box according to the Removing Electrical Box chapter 6 Remove the drain pan according to the Removing Drain Pan chapter Piping Holder Rear Piping ...

Page 390: ...ower source wiring the transition wiring and the wiring for the remote control switch 2 Push the portion indicated by PUSH on the underside of the unit to release the catches at the lower part of the unit 3 Remove the flare nuts attached to the rear pipings of the heat exchanger to disconnect the piping Then lift the indoor unit up and draw it frontward to remove it 4 Remove the front panel accord...

Page 391: ...a slotted screwdriver here and remove the resin plate from the bearing cover Resin Plate on Left Side of Heat Exchanger Bearing Cover 13 Tilt up the piping holder at the rear side approximately 10 degrees in the direction of the arrow A as shown in the figure below 14 Pull out the heat exchanger with the rear pipings obliquely upward in the direction of the arrow B to remove it from the slotted po...

Page 392: ...the thermistor Then the gas pipe thermistor can be removed b When attaching the gas pipe thermistor attach it in the reverse procedure Get the thermistor firmly attached to the inside of the piping with the thermistor holder c After attaching the thermistor clamp the wirings for the expansion valve freeze protection thermistor gas pipe thermistor and inlet air thermistor with one 1 plastic band Ga...

Page 393: ... without expansion valve 7 Removing Outlet Air Thermistor a Remove the front panel according to the Removing Front Panel chapter b Lift the front side of the vertical blade up in the direction of the arrow to remove it c Remove 1 screw fixing the outlet air thermistor cover to remove the cover Outlet Air Thermistor Outlet Air Thermistor Cover for Outlet Air Thermistor Screw Fixing Cover for Outlet...

Page 394: ...eeze protection thermistor attach it in the reverse procedure Insert the thermistor into the thermistor pipe and fix it with the thermo clip c After attaching the thermistor clamp the wiring for the expansion valve freeze protection thermistor gas pipe thermistor and inlet air thermistor with 1 plastic band 6 Removing Gas Pipe Thermistor a The gas pipe thermistor is fixed to the inside of the ther...

Page 395: ...d suction air thermistor with one 1 plastic band Place the wiring for the thermistors for inlet air gas pipe and freeze protection and the expansion valve coil into the electriacal box from the wiring outlet at the upper side The wiring for the expansion valve coil is not included when using the unit without expansion valve Fix the inlet air thermistor with the plastic band so that the thermistor ...

Page 396: ...emove it As lifting up the motor clamp in the direction of the arrow A pull it out in the direction of the arrow B 3 Then Loosen 1 screw fixing the fan and the motor shaft A B Fan Motor Fixing Screw for Fan Fan Motor Clamp Fixing Screws for Motor Clamp 4 Hold the fan with hands and lift the bearing side up slightly Then pull out the fan in the direction of the arrow to remove the fan and the motor...

Page 397: ...fan and the motor 6 When mounting the fan motor and fan mount them in the reverse procedure The fan shall be mounted 6 7mm away from the unit body 7 The outlet of the lead wire for the fan motor shall be at the cabinet side and the lead wire shall be pulled out as shown in the figure below Bearing Holder Fixing Screw for Bearing Holder 6 䌾 7mm Approx 10 Outlet of Lead Wire 10 9 13 Removing Electro...

Page 398: ... for the heat exchanger the electronic expansion valve and the piping at the inlet outlet of the electronic expansion valve are protected with butyl sheets Remove butyl sheets covering the piping the expansion valve coil and the expansion valve body Electronic Expansion Valve Coil 2 Rotate the expansion valve coil in the direction of the arrow A shown in the figure below After releasing the detent...

Page 399: ...he upper and lower horizontal louver slightly 2 Slightly bend the upper horizontal louver and pull it in the direction of the arrow A to remove the shaft at the far right from the drain pan 3 As slightly bending the center pole at the right side of the drain pan in the direction of the arrow B pull the upper horizontal louver in the direction of the arrow C to remove the shaft at the right from th...

Page 400: ...uver in the same procedure as the upper horizontal louver 6 When mounting the horizontal louvers mount the louvers in the reverse procedure N OT E When mounting the horizontal louvers insert the D cut portions at the far right shafts of the louvers into the AS Motor shafts ...

Page 401: ...lates Press the button on both sides of the grille in the direction indicated by the arrow The grille can be opened at a 30 angle Remove the air inlet grille from the hinges 10 10 2 Removal of the air filter RPF 1 0 2 5 FSN2E The air filter is located inside the air inlet grille Remove the air inlet grilles as indicated in section Removal of the air inlet grille Remove the filter by pulling the fi...

Page 402: ...E 9 screws RPFI 1 5FSN2E 10 screws Remove the 11 set screws and remove the front panel 10 10 5 Removal of the fan motor Remove the air inlet grille as indicated in chapter Removal of the air inlet grille Remove the air filter as indicated in section Removal of the air filter Remove the four set screws from the fan motor assembly plate and remove it Disconnect the wiring from the fan motor connecto...

Page 403: ...icated in section Removal of the front panel Remove the side panel removing the 3 set screws and pulling the panel downwards Remove the panel from the electrical box after removing the four set screws Remove the 2 set screws from the electrical box and release the attachment from the top of the box Turn the electrical box at a 90 angle Press the four attachment points of the PCB using long tipped ...

Page 404: ...n may damage the PCB 10 10 7 Removal of the thermistors from the liquid and gas piping Remove the air inlet grille as indicated in section Removal of the air inlet grille Remove the air filter as indicated in section Removal of the air filter Remove the front panel as indicated in section Removal of the front panel Remove the side panel removing the 3 set screws and pulling the panel downwards Dis...

Page 405: ...out heat exchange Automatic selection mode Factory set The operating mode is selected automatically according to the temperature conditions outdoor indoor and set 10 11 2 Structure and part names KPI 252 2002 E H 3E and KPI 502 1002 X3E Nº Part 1 HEX Filters Service Cover 2 Electrical Box 3 Damper 4 Return air fan motor 5 Active module only KPI 502 1002 X3E 6 Evaporator service cover only KPI 502 ...

Page 406: ...Expansion valve device 10 12 2 Removal of the electrical components Control box Remove the control box cover unscrewing the 4 screws Expansion valve box Remove the expansion valve box cover unscrewing the 4 screws Remove the terminal box like the control box cover CAUTION Handle the support carefully to avoid damaging the electrical components CAUTION Do not touch the electrical components of the ...

Page 407: ...B0077 rev 0 01 2013 Elec tr ic al c hec k s of t he main par t s 11 Index 11 1 Thermistor 396 11 2 Electronic expansion valve 397 11 3 Automatic louver mechanism 398 11 3 1 RCI M indoor units 398 11 3 2 RCD indoor units 399 11 3 3 RPC indoor units 399 ...

Page 408: ...0077 rev 0 01 2013 11 1 Thermistor Check that the thermistors are connected to the PCB inlet and if not connect them Use a multimeter to check that the thermistor resistances are bet ween 240 Ω and 840 kΩ Otherwise replace any defective ther mistors ...

Page 409: ...f pulses per second This ranges between 100Ω 250 pulses per second the width between pulses is greater than 3 mm on activating phase 2 4 Check that the valve flow is reversible 5 When the valve is fully open and in heating process check that the temperature of the liquid in the piping increases If not this indicates a fault 6 When the valve is slightly open or fully open check that the temperature...

Page 410: ...position 4 The louver stops at the set position Remove the optional air panel Remove the automatic louver cover and motor Check for dust dirt damp and cracks on the parts Check the joints and meshing between the parts Number Part name 1 Motor 2 Louver 3 Bushing 4 Stop Check that the motor connectors are correctly connected to the power supply Check that the motor has a power supply of 12 V Start t...

Page 411: ...the meshing and the joints between the parts 1 Motor shaft and crank separated by the motor securing plate 2 Crank and arms 3 Arms and shafts 4 Shafts and louver shaft 5 Bushings and louver Check that the motor connectors are correctly connected to the power supply Check that the motor has a power supply of Start the panels Press to start the louver movement Check the meshing of the louver parts a...

Page 412: ... Check the meshing and the joints between the parts 1 Motor shaft and pinion 2 Pinion and gear 3 Gear and louver shaft 4 Bushings and louver Check that the motor connectors are correctly connected to the power supply Check that the motor has a power supply of Start the panels Press to start the louver movement Check the meshing of the louver parts and that the louver move ment is correct Fit the a...

Page 413: ...an c e not es 12 Index 12 1 Regular equipment maintenance 402 12 1 1 Necessary tools equipment and consumable for regular maintenance 402 12 1 2 Indoor cleaning 404 12 1 3 Cleaning of KPI units 413 12 1 4 Collection of refrigerant to replace the indoor unit 416 ...

Page 414: ...ed Cleaning water tank Approx 18 litres Nozzle Brush 30 Non metal with a brush length of 25 to 35 mm Bucket Capacity 2 to 5 litres Philips screwdriver 1 Tweezers 1 Adjustable wrench 1 Megohmmeter Measured voltage of up to 500 V Gun Applying cleaning water Rope 4 ropes measuring 1 m Vinyl sheeting Thickness of 0 5 mm Gloves Water pan pipe Select a pipe in line with the installation requirements Cle...

Page 415: ... access panel Vinyl chloride sheeting 1 mm thick with a 0 3 mm access panel 1 Bracket A Stainless steel 8 Sheeting A Vinyl chloride sheeting 1 mm in thickness with support B and magnet 1 Sheeting B Vinyl chloride sheeting 1 mm in thickness with support B and magnet 1 Sheeting C Vinyl chloride sheeting 1 mm in thickness with support B and magnet 1 Sheeting D Vinyl chloride sheeting 1 mm in thicknes...

Page 416: ...over and Removal of the electrical box Remove the bellmouth and fan as indicated in section Removal of the fan duct and the fan Remove the drain pan as indicated in sections Removal of the drain pan and Removal of the drain pan Also carry out the following tasks 1 Remove the drain pan after emptying it of water 2 Empty the drain pan of water by removing the rubber plug Make sure the water flows ea...

Page 417: ... brushing it downwards Collect all of the dust in a bucket or a car dboard box Hang the cleaning water manifold from the indoor unit Tie the rope to the suspension bolts of the indoor unit and drop downwards Insert the support bars into the holes in the water manifold Tie the rope to the support bar of the water manifold and hang the manifold Connect a pipe to the boss and place the end inside the...

Page 418: ...sed water gun into the hole in the cleaning water manifold Start the water pump and clean the heat exchanger of any dust After cleaning spray and remove all remains of water 1 After cleaning fit the drain pan by lowering the rope 2 Dry the remains of any water on the indoor unit 3 Check the insulation of the drain pump using a megohmme ter Check that the insulation is above 1 MΩ when 500V are appl...

Page 419: ...he electrical box after opening the corresponding panel and then disconnect the connectors located between the indoor and outdoor units and other connectors as indicated in section Removal of the electrical box Remove the float switch as indicated in section Removal of the float switch Remove the drainage mechanism as indicated in section Removal of the drain mechanism Cleaning the indoor unit Cle...

Page 420: ... After cleaning fit the drain pan by lowering the rope Dry the remains of any water on the indoor unit Check the insulation of the drain pump using a megohmmeter Check that the insulation is above 1 MΩ when 500V are applied Connect the wiring Perform the neutralisation treatment after cleaning Cleaning of the wall type indoor unit RPK Preliminary procedure Place a vinyl sheet on the floor to prote...

Page 421: ...s into the holes in the water manifold 3 Tie the rope to the support bar of the water manifold and hang the manifold 4 Connect a pipe to the boss and place the end inside the pipe Pour approximately 15 litres of cleaning product for the aluminium fins into a supply tank Insert the nozzle of the pressurised water gun into the hole in the cleaning water manifold Start the water pump and clean the he...

Page 422: ...st from the heat exchanger Remove the dust from the heat exchanger by brushing it in a downwards direction Collect all of the dust in a bucket or a card board box Disconnect the drain pipe from the piping Cover the rear of the heat exchanger with a sheet of vinyl after removing the front partition and the drain pan After covering the rear refit the front partition and the drain pan Lift the drain ...

Page 423: ...emoval of the air outlet grille Open the air inlet grille as indicated in chapter Removal of the air filter Remove the lower panel and drain pan in line with the instructions given in chapter Removal of the thermistors from the liquid and gas pipes Remove the partition plate after removing the set screws Remove the fan securing cover after removing the two screws lo cated on the left and right of ...

Page 424: ...nsulation is above 1 MΩ when 500V are applied Perform the neutralisation treatment after cleaning RPI M Ducted indoor unit type D A N GER Wear gloves to avoid injuries when handling components Work prior to cleaning Turn off the power supply switches before starting maintenance work and fit the appropriate safety locks and warnings Wait 5 minutes after turning off the power supply switches Place a...

Page 425: ... Fit the following components a Fan motor b Liquid and gas piping thermistors c Air filter d Discharge air grille e Side panel N O TE The cleaning product is neutral However after it has been used the cleaning water may no longer be neutral 7 Collect the cleaning water and apply the neutralisation treatment once you have disposed of it 12 1 3 Cleaning of KPI units Filter maintenance Preliminary pr...

Page 426: ...ve the air filters located at the bottom left and bottom right close to the heat exchanger unit KPI 252 2002 E H 3E example Use a vacuum cleaner to suck up any dust Dissolve a little neutral soap in cold or warm water to clean the dirt Place the filters in the soapy water to clean them Allow the filters to dry Fit the filter Close the service cover ...

Page 427: ...er as this could damage the exposed parts of the heat ex changer KPI 252 2002 E H 3E and KPI 502 1002 X3E Hold onto the handle Remove the two total heat exchanger ele ments from the main unit KPI 252 2002 E3E and KPI 502 1002 X3E Use a vacuum cleaner to suck up any dust and dirt from the expo sed surfaces of the total exchanger elements Fit a nozzle with a brush to a vacuum cleaner to carry out th...

Page 428: ... Connect the gauge manifold to the gas and liquid stop valve 2 Switch the power supply ON 3 Enable pin 1 of DSW1 on the outdoor unit PCB for cooling ope ration Close the liquid stop valve and collect the refrigerant 4 Carry out the following procedures immediately when the side pressure drops and the gas stop valve indicates 0 01 MPa N OT E Prevent the pressure from dropping below 0 01 MPa If the ...

Page 429: ...are manufactured according to ISO 9001 of JQA Japan for its Quality Management accordance with the standard ISO 14001 of JACO Japan for its Environmental Management accordance with the standard Hitachi Air Conditioning Products Europe S A is certified with ISO 9001 of AENOR Spain for its Quality Management accordance with the standard ISO 14001 of AENOR Spain for its Environmental Management syste...

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Summary of Contents for RCD-2.5FSN2

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