Hitachi RCI-1.0FSN3 Installation & Maintenance Manual Download Page 1

Page: 1 / 55

TC-12001

2-27

4-WAY CASSETTE

Installation

Maintenance

Manual

NVERTER-DRIVEN

MULTI-SPLIT SYSTEM

HEAT PUMP

AIR CONDITIONERS

IMPORTANT:

READ AND UNDERSTAND

THIS MANUAL BEFORE

USING THIS HEAT-PUMP

AIR CONDITIONERS.

KEEP THIS MANUAL FOR

FUTURE REFERENCE.

P5414946

Type

Model

4-Way Cassette

RCI-1.0FSN3
RCI-1.5FSN3
RCI-2.0FSN3
RCI-2.5FSN3
RCI-3.0FSN3
RCI-4.0FSN3
RCI-5.0FSN3
RCI-6.0FSN3

Summary of Contents for RCI-1.0FSN3

Page 1: ... SYSTEM HEAT PUMP AIR CONDITIONERS IMPORTANT READ AND UNDERSTAND THIS MANUAL BEFORE USING THIS HEAT PUMP AIR CONDITIONERS KEEP THIS MANUAL FOR FUTURE REFERENCE P5414946 Type Model 4 Way Cassette RCI 1 0FSN3 RCI 1 5FSN3 RCI 2 0FSN3 RCI 2 5FSN3 RCI 3 0FSN3 RCI 4 0FSN3 RCI 5 0FSN3 RCI 6 0FSN3 ...

Page 2: ...OHFWULFDO GHYLFHV IDLOXUH PD occur O 3D DWWHQWLRQ WR WKH IROORZLQJ SRLQWV ZKHQ WKH XQLW LV LQVWDOOHG LQ D KRVSLWDO RU RWKHU IDFLOLWLHV ZKHUH DQ HOHFWURPDJQHWLF ZDYH JHQHUDWHV IURP D PHGLFDO HTXLSPHQW R QRW LQVWDOO WKH XQLW LQ WKH SODFH ZKHUH DQ HOHFWURPDJQHWLF ZDYH LV GLUHFWO UDGLDWHG WR WKH HOHFWULFDO ER UHPRWH FRQWURO FDEOH RU UHPRWH FRQWURO VZLWFK QVWDOO WKH XQLW DW OHDVW PHWHUV DZD IURP DQ HOH...

Page 3: ...FDO FKDUDFWHULVWLFV SRZHU VXSSO YROWDJH DQG IUHTXHQF DQG DFFHVVRULHV to determine if they are correct The standard utilization of the unit shall be explained in these instructions Therefore the utilization of the unit other than those indicated in these instructions is not recommended Please contact your local agent as the occasion arises 7 V OLDELOLW VKDOO QRW FRYHU GHIHFWV DULVLQJ IURP WKH DOWHU...

Page 4: ...d False Ceiling Opening 12 4 3 5 Installation Details for Air Panel 14 5 Refrigerant Piping Work 15 5 1 Piping Materials 15 5 2 Piping Connection 15 6 Drain Piping 17 7 Electrical Wiring 20 7 1 General Check 20 7 2 Electrical Wiring Capacity 21 7 2 1 Field Minimum Wire Sizes for Power Source 21 7 2 2 Details of Electrical Wiring Connection 22 7 3 Position of Electrical Wiring Connection 25 7 4 Tra...

Page 5: ...FK LI QRW DYRLGHG will result in death or serious injury 51 1 LQGLFDWHV D KD DUGRXV VLWXDWLRQ ZKLFK LI QRW DYRLGHG FRXOG UHVXOW LQ GHDWK RU VHULRXV LQMXU 87 21 XVHG ZLWK WKH VDIHW DOHUW V PERO LQGLFDWHV D KD DUGRXV VLWXDWLRQ ZKLFK LI QRW DYRLGHG FRXOG UHVXOW LQ PLQRU RU PRGHUDWH LQMXU 127 LV XVHG WR DGGUHVV SUDFWLFHV QRW UHODWHG WR SHUVRQDO LQMXU 127 LV XVHIXO LQIRUPDWLRQ IRU RSHUDWLRQ DQG RU PDLQ...

Page 6: ...WHG LW PD FDXVH D VHULRXV DFFLGHQW O 5HIULJHUDQW OHDNDJH FDQ FDXVH GLI FXOW ZLWK EUHDWKLQJ GXH WR LQVXI FLHQW DLU 7XUQ 2 WKH PDLQ VZLWFK H WLQJXLVK DQ QDNHG ÀDPHV DQG FRQWDFW RXU VHUYLFH FRQWUDFWRU LI UHIULJHUDQW OHDNDJH RFFXUV O 0DNH VXUH WKDW WKH UHIULJHUDQW OHDNDJH WHVW VKRXOG EH SHUIRUPHG 5HIULJHUDQW OXRURFDUERQ IRU WKLV XQLW LV QRQ ÀDPPDEOH QRQ WR LF DQG RGRUOHVV RZHYHU LI WKH UHIULJHUDQW LV ...

Page 7: ...HQWO VWURQJ IRXQGDWLRQ I QRW WKH XQLW PD IDOO GRZQ DQG LW PD OHDG WR LQMXULHV O R QRW LQVWDOO WKH XQLW LQ D SODFH ZKHUH RLO YDSRU RUJDQLF VROYHQW DQG FRUURVLYH JDV DPPRQLD VXOIXU FRPSRXQG DQG DFLG PD EH SUHVHQW LQ TXDQWLWLHV W PD FDXVH UHIULJHUDQW OHDNDJH GXH WR FRUURVLRQ HOHFWULFDO VKRFN GHWHULRUDWHG SHUIRUPDQFH DQG EUHDNDJH O 3HUIRUP WKH HOHFWULFDO ZRUN DFFRUGLQJ WR QVWDOODWLRQ 0DQXDO DQG DOO WK...

Page 8: ...nditioner are located close to each other Device Ex LIW FRQWDLQHU FUDQH UHFWL HU IRU HOHFWULF UDLOZD LQYHUWHU SRZHU GHYLFH DUF IXUQDFH electric furnace large sized induction motor and large sized switch It consumes a large quantity of electrical power Regarding the cases mentioned above surge voltage may be inducted in the power supply wiring for the packaged air conditioner due to a rapid change ...

Page 9: ...sm 12 Float Switch 13 Drain Pan 14 Rubber Plug for Drain 15 Air Panel P AP160NA1 P AP160NAE Optional 16 Air Inlet Grille 17 Air Filter 18 Air Outlet 19 Air Inlet 20 Cover for Corner Pocket P AP160NA1 P AP160NAE Model a b c RCI 1 0FSN3 12 7 6 35 248 RCI 1 5FSN3 12 7 6 35 248 RCI 2 0FSN3 15 88 6 35 248 RCI 2 5FSN3 15 88 9 52 248 RCI 3 0FSN3 15 88 9 52 298 RCI 4 0FSN3 15 88 9 52 298 RCI 5 0FSN3 15 88...

Page 10: ...ection I12 7 x 0 8 I15 88 x 1 0 I15 88 x 1 0 B Liquid Pipe Connection I9 52 x 0 8 I9 52 x 0 8 I9 52 x 0 8 C OD x T I12 7 x 0 8 I12 7 x 0 8 I15 88 x 1 0 D OD x T I12 7 x 0 8 I12 7 x 0 8 I12 7 x 0 8 1 2 3 4 Indoor Unit S S 3 Refrigerant Gas Pipe Connection A Refrigerant Liquid Pipe Connection B C D Field Refrigerant Piping Flare Connection Refrigerant Flow Direction Cooling Refrigerant Flow Directio...

Page 11: ...3 2 Handling of Indoor Unit NOTE About vacuum pump gas hose charging cylinder gauge manifold please use suitable equipments for using the refrigerant respectively Do not mix other refrigerant Do not put any material on the product or the air panel Do not step on the product Do not hold the resin covers when holding or lifting the indoor unit Do not put any foreign material into the indoor unit and...

Page 12: ...r R QRW LQVWDOO WKH LQGRRU XQLW LQ D ÀDPPDEOH HQYLURQPHQW WR DYRLG UH RU DQ H SORVLRQ x If any of these accessories are not packed with the unit please contact your contractor x The air panel the remote control switch and the branch pipes are optional accessories which are not included with the indoor unit Accessory Q ty Purpose Pattern Board Carton Board Checking Scale Cut and Take Out it from th...

Page 13: ... SDUWV LQ WKH VHUYLFH space for the indoor unit x YRLG REVWDFOHV ZKLFK PD KDPSHU WKH DLU LQWDNH RU WKH DLU GLVFKDUJH ÀRZ x R QRW LQVWDOO WKH LQGRRU XQLW LQ D PDFKLQHU VKRS RU NLWFKHQ ZKHUH YDSRU IURP RLO RU LWV PLVW ÀRZV to the indoor unit An oil will deposit on the heat exchanger WKHUHE UHGXFLQJ WKH LQGRRU XQLW SHUIRUPDQFH DQG WKH SODVWLF SDUWV PD GHIRUP DQG LQ WKH ZRUVW FDVH EUHDN GXH WR VSODVK ...

Page 14: ...Manual for outdoor unit O Make sure that the refrigerant leakage test should be performed The refrigerant Fluorocarbon R410A for this unit is incombustible non toxic and odorless However if the refrigerant is leaked and is FRQWDFWHG ZLWK UH WR LF JDV ZLOO JHQHUDWH OVR EHFDXVH WKH ÀXRURFDUERQ LV KHDYLHU WKDQ DLU WKH ÀRRU VXUIDFH ZLOO EH OOHG ZLWK LW which could cause suffocation 4 3 Installation 4 ...

Page 15: ... the position of the suspension bracket are incorrect and dew condensation may occur due to leaking air from the gap between the indoor unit and the air panel 2 The positional relation between the indoor unit and the air panel optional is shown in Fig 4 5 Fig 4 5 Mounting Position Model a b c RCI 1 0FSN3 12 7 6 35 248 RCI 1 5FSN3 12 7 6 35 248 RCI 2 0FSN3 15 88 6 35 248 RCI 2 5FSN3 15 88 9 52 248 ...

Page 16: ...ndoor Unit 4 3 4 Adjusting the Space between Indoor Unit and False Ceiling Opening O Check the level of the drain pan using a water level to avoid incorrect operation of the drain discharge mechanism in the indoor unit O Tighten the nuts of the suspension brackets after the adjustment is completed Apply LOCK TIGHT paint to the bolts and nuts in order to prevent them from loosening If not done abno...

Page 17: ...RI WKH RSHQLQJ GMXVW WKH SRVLWLRQ RI WKH LQGRRU unit as the procedure b after ceiling is FRPSOHWHG ZLWK WKH SDQHO 3 Tighten the nuts of the suspension brackets DIWHU WKH DGMXVWPHQW LV FRPSOHWHG SSO LOCK TIGHT paint to the bolts and nuts in RUGHU WR SUHYHQW WKHP IURP ORRVHQLQJ KHQ adjusting the space between the indoor unit and the ceiling surface maintain the levelness of the indoor unit If the le...

Page 18: ...Air Intake Kit OACI 160K2 For Air Panels P AP160NA1 and P AP160NAE 1 Check the distance between the indoor unit and the false ceiling It is 12 5mm as shown LQ WKH JXUH I QRW DGMXVW WKH GLVWDQFH E using the checking scale with maintaining the levelness of the indoor unit 2 KHFN WKDW WKH LQJ VFUHZV IRU WKH SDQHO DUH WLJKWHQHG 7LJKWHQ WKH LQJ VFUHZV IRU the panel until touching the stopper to the sus...

Page 19: ...arbon refrigerants SURSDQH RU HWF R JHQ ÀDPPDEOH JDVHV acetylene or etc or poisonous gases when installing maintaining and moving These ÀDPPDEOHV DUH H WUHPHO GDQJHURXV DQG PD FDXVH DQ H SORVLRQ D UH DQG LQMXU 5 1 Piping Materials 1 Prepare locally supplied copper pipes 2 Select the piping size from the following table Fig 5 1 Position of Piping Connection mm in Model Gas Piping Liquid Piping RCI ...

Page 20: ...DFFRUGLQJ WR WKH VSHFL HG WRUTXH I QRW LW PD FDXVH WKH refrigerant leakage QVXODWH HDFK ÀDUH FRQQHFWLRQ ZLWKRXW JDS WR SUHYHQW RI GHZ FRQGHQVDWLRQ E XVLQJ WKH DFFHVVRU LQVXODWLRQV DQG LQVXODWH HDFK UHIULJHUDQW SLSH DOVR 9 I XVLQJ D IRUPLQJ DJHQW UHFRPPHQGHG XSRÀH DIWHU LQVWDOOLQJ WKH DLU SDQHO DYRLG WRXFKLQJ WKH IRUPLQJ DJHQW WR WKH DLU SDQHO I WKH IRUPLQJ DJHQW LV WRXFKHG WR WKH DLU SDQHO LW PD F...

Page 21: ...peration is stopped O Do not connect the drain pipe with sanitary or sewage piping or any other drainage piping O When the common drain piping is connected with RWKHU LQGRRU XQLWV WKH FRQQHFWHG SRVLWLRQ RI HDFK indoor unit must be higher than the common piping The pipe size of the common drain pipe must be large enough according to the unit size and number of units O After performing drain piping ...

Page 22: ... ÀRZ back to the unit and the abnormal noise and leakage to the room will occur when the unit operation is stopped f Lifting Drain Piping Perform with the dimension as shown in WKH JXUH EHORZ LQ WKH FDVH RI OLIWLQJ WKH drain pipe The total drain piping length of a b c shall be within 1 100mm g Installing Common Drain Piping Create a down slope for the common drain piping position from the highest ...

Page 23: ...SURFHGXUH WR FKHFN WKH ÀRDW VZLWFK RSHUDWLRQ a Turn ON the power supply b Pour 1500cc to 2000cc of water gradually into the drain pan c KHFN WR HQVXUH WKDW WKH ZDWHU ÀRZV smoothly inside the transparent drain pipe FRQQHFWLRQ ZKHWKHU QR ZDWHU OHDNDJH occurs d If the end of the drain pipe can not be FKHFNHG YLVXDOO SRXU PRUH FF WR 2000cc of water to the drain pan If the ZDWHU RYHUÀRZV IURP WKH GUDLQ...

Page 24: ...LUH LV FRQQHFWHG O It is recommended that the electrical wiring work be performed by authorized installers I QRW LW PD FDXVH DQ HOHFWULF VKRFN RU D UH O Perform the electrical work according to each regulation of region and Installation Maintenance Manual and the dedicated electrical circuit must be utilized If not performing the electrical wiring work completely or a capacity shortage of the powe...

Page 25: ... the discharge gas side since the compressor chamber and the pipes at the discharge side are heated higher than 90o C B DO NOT PUSH THE BUTTON OF THE MAGNETIC SWITCH ES It will cause a serious accident NOTES 1 ROORZ ORFDO FRGHV DQG UHJXODWLRQV ZKHQ VHOHFWLQJ HOG ZLUHV 2 The wire sizes marked with 1 in the above table are selected at the maximum current of the unit according to the European Standar...

Page 26: ... to the phase of power source when wiring L1 3N 380V 415V 50Hz 1N 220 240V 50Hz 3N Earth Wiring ELB ELB E 1 2 E S T Mp R S 1 2 A B Outdoor Unit Indoor Unit Main Switch Main Switch Remote Control Switch Option R 3 220V 60Hz Earth Wiring ELB ELB E 1 2 1 220V 60Hz Remote Control Switch Cable Field Supplied Shielded Twist Pair Cable 0 75mm 2 This cable dose not need any polarity Do not apply an excess...

Page 27: ... 75mm 2 This cable dose not need any polarity Do not apply an excessively high voltage to this cable Rated Voltage 5V Shielded Twist Pair Cable 0 75mm 2 This cable dose not need any polarity Do not apply an excessively high voltage to this cable Rated Voltage 5V Control Cable Power Source Cable Pay attention to the phase of power source when wiring L1 3N 380V 60Hz 1N 220V 60Hz 3N Earth Wiring L1 N...

Page 28: ...ot need any polarity Do not apply an excessively high voltage to this cable Rated Voltage 5V Shielded Twist Pair Cable 0 75mm 2 This cable dose not need any polarity Do not apply an excessively high voltage to this cable Rated Voltage 5V Control Cable Power Source Cable Pay attention to the phase of power source when wiring L1 3N 380V 60Hz 1N 220V 60Hz 3N Earth Wiring L1 N 1 2 A B Indoor Unit No 2...

Page 29: ...le for the optional remote control switch or the optional extension cable to the terminals inside the electrical box through the connecting hole in the cabinet 2 Connect the power supply and the earth wires to the terminals in the electrical box 3 Connect the wires between the indoor unit and the outdoor unit to the terminals in the electrical box 4 Connect cables correctly to match the WHUPLQDO 1...

Page 30: ... out However if 220V 240V is applied to the control line again PCB will break and not be able to recover Shielded Twist Pair Cable Shield Earth Earth Wires P S H S H B HITACHI AIR CONDITIONER Model THM5 THM3 CN11 CN2 CN1 PCN6 CN17 THM1 THM2 PCN4 S N R L 1 2 1 B A K D R A IN 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 3 4 ON 1 2 ...

Page 31: ...te control switch d The multiple panels with the motion sensor are controlled by one remote control switch 7 This indoor unit is adopted four 4 steps of fan speed HIGH 2 HIGH MED and LOW When installing this indoor unit with three 3 steps of fan speed type connect the remote control switch to four 4 steps of fan speed type If not HIGH 2 will not be indicated and can not be selected 12 Attach the r...

Page 32: ... and Unit with Transition Wiring When the indoor units in multiple refrigerant cycles are controlled by one remote control switch all the indoor units are required to be connected with the transition wirings 1 The following functions are available to set only to the main unit with the remote control switch PC ARF Remote ON OFF function 1 and 2 Power supply ON OFF function 1 and 2 Prohibiting opera...

Page 33: ...entralized Station EZ PSC A64GT 2 Centralized Station DX PSC A128WX 1 HARC70 P1 HARC70 P1 3 When the indoor unit which is not connected to the remote control switch is checked the condition on the centralized station the indication is always Prohibiting Operation by Remote Control Switch for all items HARC BX HARC BX NOTES 1 The centralized controllers can not be used together 2 HIGH 2 is not avai...

Page 34: ...necting the multiple indoor units pay attention to the positional relationship between remote control switch and air panel 3 This Individual Louver Setting is NOT available with 2 two remote control switches 4 The individual louver function is not for blocking the air outlet If the air outlet is blocked 3 Way Outlet Parts Set shall be used NOTE The air outlets can not be closed individually by the...

Page 35: ...e set from the centralized stations 9 The air panel with motion sensor can not be used when it is connected to the same remote control switch with an indoor unit in other refrigerant cycle which is set as the simultaneous operation 10 The room thermostat function is not available 11 In the case of RAS HVRNM2 series or SET FREE FSN2 FSXN outdoor unit series the indoor unit without the motion sensor...

Page 36: ...he motion sensor Places where the lens surface may smudge or be damaged such as a dusty environment Pay attention that the detecting function will be decreased if the lens for motion sensor smudges Q WKLV FDVH ZLSH RII VPXGJHV E D FRWWRQ VZDE VRDNHG DOFRKRO VRSURS O DOFRKRO LV UHFRPPHQGHG or a soft cloth When wiping off smudges on the lens for motion sensor do not apply excessive force If excessiv...

Page 37: ...he Horse Power of the indoor unit Cord Clamp Wiring Support Plate Electrical Box Cover Screw for Wiring Support Plate under Piping Cover Piping Cover Wiring Connection Hole Electrical Box PCB Printed Circuit Board Scerw for Electrical Box Cover Screw for Wiring Support Plate Cord Clamp Electrical Box Terminal Board White DC5V Terminal Board Black AC 220 240V Wiring Support Plate Transition Wiring ...

Page 38: ... the louver outlet No 1 Ceiling Height High Speed Setting Function 1 0 to 3 0HP 4 0 to 6 0HP HVV WKDQ P HVV WKDQ P Standard 2 7 3 0m 3 2 3 6m High Speed 1 3 0 3 5m 3 6 4 2m High Speed 2 5 Unit Model Code Setting DSW4 No setting is required It is for setting the model code of the indoor unit 6 Refrigerant Cycle No Setting RSW2 DSW5 Setting is required Setting positions before shipment are all OFF 7...

Page 39: ... displayed 5 Press and select the louver direction The selected louver is opened and the other louvers are closed 6 Press menu while help is pressed 7KH FRQ UPDWLRQ VFUHHQ ZLOO EH GLVSOD HG 7 Select Yes and press OK 5 will be displayed after WKH VHWWLQJ FKDQJH LV FRQ UPHG If No is selected and OK is pressed the screen will return to 5 Regarding Louver Setting the louver selected at 5 will be set a...

Page 40: ...te the system until the electrical leakage is found and repaired Do not apply the high voltage to the terminals for the transmission TB2 1 2 A and B 3 Check to ensure that each wire is correctly connected at the power source If incorrectly connected the unit will not operate and the remote control switch will indicate the alarm code 05 In this case check the phase of the primary power source accor...

Page 41: ...ion one 1 set with two 2 indoor units is indicated 2 units and the triple combination one 1 set with three 3 indoor units is indicated 3 units c Press or select LOUV and select auto swing by pressing or The auto swing operation will be started Check the operating sound at the louvers If abnormal sound is generated from louvers it may be a deformation of the air panel due to incorrect installing In...

Page 42: ...yed when the number of indoor unit connected with the remote control switch is 1 one In this case screen C will be displayed 3 Select the indoor unit by pressing and press OK The check data screen C will be displayed B C e The temperature detections by the thermistors are invalid though the protection devices are valid during the test run f Multi Split System According to the label Checking of Out...

Page 43: ...HFN WKH DODUP DEQRUPDOLW FRGH WDEOH VKRZQ LQ WKH QH W SDJH DQG SHUIRUP IRU WURXEOHVKRRWLQJ RQVXOW WR DXWKRUL HG VHUYLFH HQJLQHHUV LI DEQRUPDOLW FDQ QRW EH UHFRYHUHG Unit Model Code 7KH UHODWLRQ EHWZHHQ WKH XQLW PRGHO FRGH DQG WKH XQLW PRGHO LV VKRZQ LQ WKH WDEOH EHORZ Indication Unit Model F Multi Split HDW 3XPS 2SHUDWLRQ HDW 5HFRYHU E DC Inverter UTOPIA E FHSW ERYH 0RGHOV SEL OP MODE I U RCI 3 0F...

Page 44: ... Group 36 Incorrect of Indoor Unit Combination Indoor Unit is Designed for Other Refrigerant R22 or R407C 38 59 Abnormality of Outdoor Unit Refer to Installation Maintenance Manual of Outdoor Unit b0 System Incorrect Setting of Unit Model No Setting of Unit Model Incorrect Setting of Unit Model b1 Incorrect Setting of Unit and Refrigerant Cycle No Unit No or Refrigerant Cycle 64 EE Compressor Comp...

Page 45: ...CI 5 0FSN3 RCI 6 0FSN3 For Evaporator Fan Motor Thermostat Cut Out o C 100 4 100 15 10 Cut In o C 90 4 95 15 10 For Control Circuit Fuse Capacity A 5 Freeze Protection Thermostat Cut Out o C 0 Cut In o C 11 Thermostat Differential o C 2 All the installation work of the air conditioning is completed Deliver and describe to keep this Installation Maintenance Manual to a user ...

Page 46: ... 12001 2 131 AIR PANEL Installation Manual For Air Panel Model P AP160NA1 P AP160NAE IMPORTANT READ AND UNDERSTAND THIS MANUAL BEFORE USING THIS AIR PANEL KEEP THIS MANUAL FOR FUTURE REFERENCE 317B43809A ...

Page 47: ...he place where the electromagnetic wave is directly radiated to the electrical box remote control switch cable or remote control switch Install the unit at least 3 meters away from electromagnetic wave such as a radio O DO NOT install the unit in the place where the air ÀRZ directly catches to animals or plants It could be the cause of adverse affect to animals or plants O DO NOT install the air p...

Page 48: ...t completed it may cause heat generation or a UH SAFETY SUMMARY Signal Words O The following signal words are used to identify levels of hazard seriousness H QLWLRQV for identifying hazard levels are provided below with their respective signal words WARNING indicates a hazardous situation which if not avoided could result in death or serious injury CAUTION used with the safety alert symbol indicat...

Page 49: ... unpacking place it with the rear side downward the surface to W the indoor unit body on an insulation material etc However do not leave the air panel on the ÀRRU for long time It may cause air leakage due to scratch the seal packing In addition if the air panel is placed with the surface downward the louver mechanism may be damaged due to touch the louver to the ÀRRU etc 4 Do not move the louver ...

Page 50: ...tallation Maintenance Manual of the indoor unit 2 Do not touch the louver during the installation work 3 Remove the air inlet grille from the air panel While pushing both ends of knobs at the air inlet grille toward the arrow direction open the air inlet grille until the angle of approximately 45 from the air panel surface After lifting the air inlet grille keeping it inclined draw the air inlet g...

Page 51: ...cover may be damaged 8 Check to ensure that the distance between the indoor unit undersurface and the false ceiling undersurface is 12 5 0mm 1 as shown in the JXUH below Tighten the long screws until touching the stopper to the LQJ plate Check to HQVXUH that the distance between the LQJ plate XQGHUVXUIDFH and the corner panel undersurface is 26mm 2 as shown in the JXUH below When tightening the lo...

Page 52: ... rear side of the corner pocket cover onto the projection at the air panel as VKRZQ in the JXUH EHORZ NOTE Catch securely the band onto the projection If not the comer pocket cover may fall down when removing it so that may cause injury 9 If using a forming agent after installing the air panel avoid touching the forming agent to the air panel If the forming agent is touched to the air panel it may...

Page 53: ...ir panel Connect the wiring for motion sensor at the corner pocket cover to the relay FRQQHFWRU as the IROORZLQJ JXUH After connecting cover the relay connector connection E the ZLULQJ FRYHU and the ZLULQJ cover by the plastic bands d Catch the band at the rear side of the corner pocket cover with motion sensor onto the SURMHFWLRQ at the DLU panel as shown in the JXUH below NOTE Catch securely the...

Page 54: ...item 3 of Installation Hook the swivel of the supporting string at A to the hole at the air panel The air inlet grille can be attached from any 4 directions by rotating it When multiple indoor units are installed or requested from a user the air intake grille direction can be selected freely e While pushing the wiring into the corner pocket LQVHUW the LQJ KRRNV 2 SRUWLRQV at A to the square hole a...

Page 55: ...h the louver position indicator on LCD during the auto VZLQJ RSHUDWLRQ KHQ LQJ the ORXYHU DQJOH set it according to the louver position on LCD O Even if or is pressed to stop the auto swing the louver may not be stopped soon O If the cooling operation is performed under the condition with over 80 humidity dew condensation may occur at the air panel or the louver Do not move the louver by hand If m...

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