Mitsubishi FDCVA302HENR Manual Download Page 18

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1.2.6 Piping system

Model 302 series

Cooling cycle

Heating cycle

Thermistor

(Th

-R2)

Thermistor

(Th

-R1)

Thermistor

(Th

-D)

Thermistor

(Th

-S)

Thermistor

(Th

-A)

Service valve

(Flare connecting)

Service valve

(Flare connecting)

High pressure

switch

Low pressure

sensor

(63H1)

(LPT)

(SV1)

Thermistor

(Th

-R)

(EEVH)

Thermistor

(Th

-A)

Heat exchanger

Heat

exchanger

Solenoid

valve

Strainer

Liquid line

(ø9.52)

Gas line

(ø15.88)

4way valve

Muffler

Compressor

accumlator

Check joint

Check valve

Indoor unit

Outdoor unit

Electronic

expansion valve

Electronic

expansion valve

(EEVC)

Strainer

Receiver

Parts name

Mark

Thermistor

(for protection over-

loading in heating)

Thermistor

(for frost prevention)

Thermistor

(for detecting dis-

charge pipe temp.)

High pressure switch

(for protection)

OFF 63

℃

ON 56

℃

Equipped

unit

-R

-D

63H1

Indoor unit

Outdoor unit

OFF 1.0

℃

ON 10

℃

302 series

OFF 4.15MPa

ON 3.15MPa

Low pressure sensor

(for protection)

LPT

Outdoor unit

OFF 0.227MPa

ON 0.079MPa

OFF 115

℃

ON 85

℃

Preset point of the protective devices

Note(1) A FDEN type strainer only should be used for the indoor unit

Summary of Contents for FDCVA302HENR

Page 1: ...it system Air to air heat pump type MULTI TYPE V MULTI PACKAGED AIR CONDITIONER CEILING RECESSED TYPE FDTVA302HEN1R CEILING SUSPENDED TYPE FDENVA302HEN1R SATELLITE DUCTED TYPE FDUMVA302HEN2R OUTDOOR U...

Page 2: ...1 TABLE OF CONTENTS 1 PACKAGED AIR CONDITIONER 2 2 MULTI TYPE V MULTI PACKAGED AIR CONDITIONER 122 3 WIRELESS KIT OPTIONAL PARTS 190...

Page 3: ...onal parts 12 3 Outdoor unit 14 1 2 4 Inside view 15 1 2 5 Exterior appearance 16 1 2 6 Piping system 17 1 2 7 Selection chart 18 1 2 8 Characteristics of fan 23 1 2 9 Noise level 23 1 Indoor unit 23...

Page 4: ...ctions using the wired remote controller 76 8 Checking operation data 80 9 Test run 81 1 6 MAINTENANCE DATA 82 1 6 1 Servicing 82 1 6 2 Trouble shooting for refrigerant circuit 83 1 6 3 Diagnosing of...

Page 5: ...temperature 4 There are only three power lines between the outdoor and indoor unit One cabtyre cable with 3 wires encased in one sheath is enough for conducting the wiring work between the outdoor un...

Page 6: ...ubber mount for compressor Electric heater W 20 Crank case heater Operation control Wired remote control switch Optional RC E1R Operation switch Wireless remote control switch Optional RCN T 35W ER In...

Page 7: ...for fan motor Rubber mount for compressor Electric heater W 20 Crank case heater Operation control Wireless remote control switch Optional RCN E1R Operation switch Wired remote control switch Optiona...

Page 8: ...essure Pa Standard 50 Max 85 Outside air intake Air filter Q ty Shock vibration absorber Rubber sleeve for fan motor Rubber mount for compressor Electric heater W 20 Crank case heater Operation contro...

Page 9: ...tage Voltage at starting Cycle Time Stop Time Dew point temperature 28 C or less relative humidity 80 or less Indoor unit 18 30 CD B Outdoor unit 15 43 CD B Max 50m 7 minutes or more 4 minutes or more...

Page 10: ...pitch 675 Suspension bolts pitch Control box Outside air opening for ducting Exhaust air opening for ducting Control box Gas piping 9 52 3 8 Liquid piping or more Lug for suspension bolts Space for in...

Page 11: ...Holes for suspension bolts M8 to M10 4pcs Not included Liquid piping Gas piping Liquid piping Gas piping Space for installation and service or more or more or more Obstacles Air ireturn grille Drain h...

Page 12: ...Hole for wiring Inspection space 200 80 5 18 213 205 59 71 950 18 45 118 284 986 Suspension bolts pitch Unit mm VIEW A Liquid piping 9 52 3 8 472 Suspension bolts pitch Drain hose piece Accessory Inst...

Page 13: ...ntend ed for screw holes and then fix it with screws This side is not grounded Earth wiring Remote control switch Remote control cord Shielded wire Precation in Extending the Remote control cord The c...

Page 14: ...13 b Wireless remote controller 60 17 150...

Page 15: ...3 L1 Open Open 500 L2 300 250 Open L3 100 150 100 L4 250 250 250 Installation type Notes 1 It is prohibited to install in a space enclosed with walls at four sides 2 Unit must be secured with anchor...

Page 16: ...door unit Control box 4way valve High pressure switch 63H1 Low pressure sensor PSL Electronic expansion valve EEVH Electronic expansion valve EEVC Solenoid valve SV1 Compressor Service valve Liquid si...

Page 17: ...er white Plaster white Plaster white Plaster white Front panel Front panel Side panel Vertical louver Horizontal louver Light gray Light gray Air return grille Plaster white b Ceiling suspended type F...

Page 18: ...sor accumlator Check joint Check joint Check valve Indoor unit Outdoor unit Electronic expansion valve Electronic expansion valve EEVC Strainer Strainer Receiver Parts name Mark Thermistor for protect...

Page 19: ...oor air temperture 12 W B Indoor air temperture 16 W B 2 Heating 15 16 17 18 19 20 21 22 24 23 25 Indoor air temperature DB Capacity compensation coeffcient 0 50 0 60 0 70 0 80 0 90 1 00 1 10 1 20 1 4...

Page 20: ...perture 24 W B Indoor air temperture 19 W B Indoor air temperture 12 W B Indoor air temperture 16 W B Indoor air temperature DB Power consumption correction factor 0 50 0 60 0 70 0 80 0 90 1 00 1 10 1...

Page 21: ...temperature DB Sensible heat factor 0 60 0 65 0 70 0 75 0 80 0 85 0 90 0 95 1 00 1 05 15 10 5 0 5 10 15 20 25 30 35 40 43 Indoor air temperture 12 W B Indoor air temperture 24 W B Indoor air tempertu...

Page 22: ...tance limit actual length for each respective piping system Equivalent length Actual length equivalent length of bends x number of bends in the piping Equivalent length for 1 bend 0 15 9 52 15 88 0 25...

Page 23: ...of the model FDTVA302HEN1R with the air flow High the piping length of 15m the outdoor unit located 5m lower than the indoor unit indoor wet bulb temperature at 19 0 C and outdoor dry bulb temperature...

Page 24: ...oor unit a Ceiling recessed type FDT Measured based on JIS B 8616 Mike position as right 1 5m Mike center low points Model FDTA301R Noise level 38 dB A at HIGH 35 dB A at MEDIUM 33 dB A at LOW N60 40...

Page 25: ...ion as right Model FDUMA302R Noise level 35 dB A at HIGH 32 dB A at MEDIUM 29 dB A at LOW 2 Outdoor unit Measured based on JIS B 8616 Mike position at highest noise level in position as below Distance...

Page 26: ...output XR5 X1 2 3 6 X4 TB CnB Z mark Remote operation input volt free contact Auxiliary relay For FM Auxiliary relay For DM Terminal block mark Connector Closed end connector Mark Parts name Mark Part...

Page 27: ...output DC12V output Thermo ON output DC12V output Inspection output DC12V output Remote operation input volt free contact Auxiliary relay For FM Terminal block mark Connector mark LED 1 LED 2 LED 3 S...

Page 28: ...ration Operation output DC12V output XR2 XR3 XR4 XR5 X1 2 3 6 X4 TB CnA Z mark Heating output DC12V output Thermo ON output DC12V output Inspection output DC12V output Remote operation input volt free...

Page 29: ...ay for CH Parts name Crankcase heater SM1 20S 52X3 CH 52X1 Fan motor Compressor motor FMO1 Mark Meaning of marks CM High pressure switch Thermistor H X temp Thermistor discharge temp Low pressure sens...

Page 30: ...n Check indicator light During operation Lit in green In case of error Flashing in red FAN SPEED switch This switch is used to set the airflow volume SET switch This switch is used to apply the timer...

Page 31: ...is pressed the mode is sequentially changed in order HI LO MED OPERATION MODE select button The operation mode on the side of the indicator is the currently selected opera tion mode It will switch in...

Page 32: ...depending on the room temperature and the temperature of indoor heat exchanger When the switching between the cooling and the heating is made within 3 minutes the compressor will not operate for 3 min...

Page 33: ...Pattern of operation Operation block Thermal drying starting for 8 or 16 minutes after operation started A 16 minutes The air flow is set at 1 speed lower than the set air flow 8 minutes Continuous c...

Page 34: ...C or above or 7 minutes passes Heat exchanger temperature 35 C or above or 7 minutes passes Compressor ON Defrosting ends Thermostat ON Thermostat OFF Defrosting starts Compressor OFF Notes 1 If J2 s...

Page 35: ...R model 1 Louver Control a While the air conditioner is operating press the LOUVER switch AUTO is displayed for 3 seconds and the swing louvers move up and down continuously b When fixing the position...

Page 36: ...e thermostat goes OFF the louver position is set in the horizontal position Note 1 The compressor stops when protection control starts n Heating overload porotection If an overload condition is sensed...

Page 37: ...output connectors CnT are provided on the control PCB of indoor unit Operation output Power to engage DC 12V relay provided by the customer is outputted during operation Heating output Power to engage...

Page 38: ...it is turned on at the field Input signal to CnT becomes Valid at OFF ON only and the motion of air conditioner ON OFF is inverted CnT Input Air Conditioner A Air Conditioner B OFF OFF ON ON ON ON ON...

Page 39: ...n memory regardless of whether power failure compensation is enabled or disabled and the quiet mode setting is cancelled regardless of whether power failure compensation is enabled or disabled 1 When...

Page 40: ...after the compressor starts the speed is set at the target speed ii Compressor protective start 3 3 3 3 3 1 The first additional time the compressor starts after the power is turned ON compressor pro...

Page 41: ...sor speeds and times Specified speed 42 rps Time 10 min Note 1 During this control if the compressor is stopped by the remote controller etc this control is repeated 2 This control is stopped after 10...

Page 42: ...C Zone a Zone b Zone c Zone Outdoor air temperature C Outdoor heat exchanger temperature C 3 Snow protection fan control When DIP switch SW3 2 on the outdoor unit s control PCB is ON or when in the st...

Page 43: ...mperature Tho P is 75 C the outdoor unit fan tap speed is lowered by 1 speed d End conditions When the conditions in item 3 above and the outdoor unit fan tap speed determined in item i are sensed 2 t...

Page 44: ...perature or lower as shown in the figure at right for 15 seconds continuously or the intake gas saturation temperature SST obtained from the low pressure sensor s LPT de tected value and outdoor air t...

Page 45: ...arge pipe temperature If it rises still higher the com pressor is stopped 1 Compressor speed control 2 Discharge pipe temperature abnormal a If the discharge pipe temperature has risen to 115 C or hig...

Page 46: ...e cooling mode the compressor is stopped When the temperature drops to or below the set value compressor operation resumes automatically b If the outdoor heat exchanger temperature exceeds the set val...

Page 47: ...utside the control region shown in item d above for 6 minutes continuously h Inverter protection control i Current cut control This prevents overcurrent at the inverter If the current exceeds the set...

Page 48: ...r each model 2 Each protective control and abnormal sensing control is activated 3 If the setting of SW5 4 is changed during trial operation stop control is performed and the compressor is stopped tem...

Page 49: ...op control is executed according to any of the following conditions 1 A low pressure of 0 087 MPa or lower is detected continuously for 5 seconds a Red LED On Green LED flashing Remote controller disp...

Page 50: ...substance other than the specified refrigerant R410A such as air from entering the refrigerant cycle in installing or moving the air conditioning system Contamination by air or a foreign substance can...

Page 51: ...ipes and drain pipes should be further covered with insulation materials of 10 20 mm thick 3 Consider the supporting strength of the location If the strength is not sufficient to sustain the unit weig...

Page 52: ...1 When a hanging bolt exceeds 1 3 m in length use an M10 bolt and give it reinforcements such as braces Refrigerant piping Drain bolt Suspension Nut Washer Spring Washer Main body Level gauge 10 25mm...

Page 53: ...e such harmful or flammable gas to flow into the room 1 5 m 2 m Suspension bolts Desceding slope greater than 1 100 Insulation material No bump Air vent No trap Not touching the water As wide as possi...

Page 54: ...and fix the unit s installation height Remove the level gauge before installing the unit The unit s installation height can be minutely ad justed by means of the corner openings after the panel is in...

Page 55: ...5 mm Fasten the drain piping side and the opposite corner temporarily 2 Hang the panel on the two suspension bolts to install it temporarily 3 Install the two remaining suspension bolts and tighten a...

Page 56: ...ntrols are disabled The actual setting may also differ from the LCD display in the remote controller 1 Turn off the main power supply turn it off at the ground fault circuit breaker 2 Disconnect the c...

Page 57: ...FDENA301R 8 Unit m Conditions 1 Installation height 2 4 3 0 m above the floor 2 Fan speed Hi 3 Location Free space without obstacles 4 Distance of reach indicates the horizontal distance after the win...

Page 58: ...ral number of indoor units Condition Illuminance at the recelver area 360 lux When no lighting fixture is located within 1 m of indoor unit in an ordinary office When the remote control unit is used w...

Page 59: ...0 215 Fasten the bolts to the front of the slotted holes Air supply Flat washer accessory parts Ceiling board Fasten it securely with double nuts Suspension bolts Lug for suspension Unit Double nuts F...

Page 60: ...rain piping left 53 53 109 10 Drain piping For left Drain piping For left back 175 19 Top Cover Unit mm Back cutout Back cover Cutting margin Right side cutout Top cutout 60 100 120 60 47 60 108 31 27...

Page 61: ...e sure to fasten the drain hose down with a clamp There is danger of water overflowing the drain hose WARNING After piping has been installed check to make sure water drains well and that there is no...

Page 62: ...nt on the part of your client user a Places where chilled or heated air circulates freely When the installation height exceeds 3m warmed air stays close to the ceiling In such cases suggest your clien...

Page 63: ...slightly lower 3 Blower fan tap switch The following two methods are available in switching the blower fan tap Switch to the high speed tap with one of these methods 1 Set SW9 4 provided on the indoo...

Page 64: ...air port lies on the back When connecting the duct to the return air port remove the air filte if it is fitted to return air port When placing the return air port to carry out suction from the bottom...

Page 65: ...ss wool 25mm Use a wire net or equivalent to hold glass wool in place It may run out the allowable limit of unit operation Example When outdoor air temperature is 35 CD B return air temperature is 27...

Page 66: ...0 1 100 and avoid riding across an elevation or makeing traps 2 When connecting the drain pipe to the unit pay suffcient attention not to apply excess force to the piping on the unit side Also fix the...

Page 67: ...exists in the ceiling space elevate the piping to avoid the obstacle using an elbow or corresponding gadget When doing this if the stretch for the needed height is too high the back flow quantity of d...

Page 68: ...econds or longer The display will change from SELECT ITEM SET TEST RUN 2 Press the button once while TEST RUN is displayed and cause DRAIN PUMP to be displayed 3 When the SET button is pressed a drain...

Page 69: ...tions Terminals xRed wire YWhite wire ZBlack wire Use a cord of 0 3mm2 recommended 0 5mm2 maximum for a remote controller cord Remove a sheathe of the remote control ler cord for the section laid with...

Page 70: ...nd the unit by the obstruction Secure the top space for 1 m or more Requ When more than one unit are installed side by side provide a 250mm or wider interval between them as a service space In order t...

Page 71: ...ormance degradation a rise of high pressure resulting is an operation interruption a broken fan etc 3 Where the foundation is not stable secure the unit with wire etc Wind direction 1 Install the unit...

Page 72: ...during a cooling opera tion which may become drain water causing a water leak accident or a risk of burns during a heating operation if touched accidentally with its surface reaching a high temperatu...

Page 73: ...the vacuum gauge s needle pointer 3 Air tightness test and air purge Always use a vacuum pump to purge air trapped within an indoor and the refrigerant piping a Air tightness test 1 When all the flare...

Page 74: ...erature drops below zero for several days in a row do not install a drain elbow or grommets Because of freezing drain water could be blocked from running freely There are 3 drain holes provided on the...

Page 75: ...s are connected please make sure that all electrical components within the electrical component box are free of loose connector coupling or terminal connection and then attach the cover securely Impro...

Page 76: ...controller b Set the SW1 select switch on the slave remote controller on the Slave setting It is set on the Master setting at the factory Note 1 Remote controller sensor activation settings are possi...

Page 77: ...ing Indoor unit fan speed setting Louver control setting 01 03 04 05 06 07 08 09 10 Function number A Default setting Hi CEILING SET FILTER SIGN SET POSITION EXTERNAL INPUT SET ROOM TEMP OFFSET FAN CO...

Page 78: ...be displayed one by one Select a desired function 3 Press the SET button The screen display will be switched as follows SETTING Setting C ex AUTO RUN ON 4 Press either or button A list of Settings C...

Page 79: ...on setting process is completed Then the screen display will be switched to Function number A Function description B so if you want to continue to set another function repeat the stepa as explained ab...

Page 80: ...temperature is set at a value lower than the upper limit value The set temperature is transmitted b If the lower limit is set q When in an operating mode other than the heating mode if a temperature t...

Page 81: ...SET OPERATION DATA 2 Press the SET button while OPERATION DATA is displayed 3 The display will change to I U No 00 blinking indication Select the indoor unit number you want to have data displayed wit...

Page 82: ...est run from an outdoor unit 1 Test run method a A test run can be initiated from an outdoor unit by using SW5 3 and SW5 4 for on site setting b Switching SW5 3 to ON will start the compressor c The u...

Page 83: ...should be relived through the service port b Connect the charging hose of the gauge mani fold to the service port of the gas piping Close high pressure valve 2 of gange mani fold c Connect the chargi...

Page 84: ...ting condition by operation pressure and temperature difference Making an accurate judgement requires a skill that is acquired only after years of experience one trouble may lead to an another trouble...

Page 85: ...controller error code No indication LCD flashes continuously or is off E1 E5 E6 E7 E9 E10 E28 Cause Keeps flashing Keeps flashing 1 time flash Stays OFF E8 Stays OFF Stays OFF Stays OFF Power OFF L ph...

Page 86: ...shing Stays OFF 1 time flash E35 Keeps flashing Stays OFF 1 time flash Current Abnormalities in a compressor over current E42 Keeps flashing Keeps flashing Keeps flashing Stays OFF 1 time flash Invert...

Page 87: ...are control by a single remote controller Broken wire of indoor unit return air thermistor Error detail Error code Timing of error detection Broken wire of heat exchanger thermister Broken wire of dis...

Page 88: ...nnect the power supply connector CNW1 or CNW0 on the indoor unit control PCB or turn the main power supply OFF Turn the main power supply OFF 3 Error diagnosis procedures at the indoor unit side To di...

Page 89: ...me 1000hrs Display Setting time 600hrs Display Setting time 180hrs when shipped from factory SW5 4 SW5 3 ON OFF ON OFF ON OFF Switch Function Emergency operation Normal Fan control Powerful mode Fan c...

Page 90: ...one 1 With None 1 With None 1 With None 1 With None 1 With None 1 Name Function Note 1 2 None means that jumper wire is not provided on the PCB or the connection is cut The replacement PCB is not equi...

Page 91: ...1 With None 1 Name Function Note 1 2 None means that jumper wire is not provided on the PCB or the connection is cut The replacement PCB is not equipped with jumpers J1 J7 Instead SW7 and 8 with the...

Page 92: ...nutes Louver close Dryness operation 120 minutes Louver close Dryness operation Invalid OFF ON OFF ON OFF ON OFF ON ON OFF ON OFF Switch Function OFF ON Note 1 It is normally ON only in the case of SW...

Page 93: ...2 None means that jumper wire is not provided on the PCB or the connection is cut The replacement PCB is not equipped with jumpers J1 J4 J6 Instead SW7 and 8 with the same functions as jumpers J1 J4 J...

Page 94: ...to normal when the power supply is reset Notes 1 In models other than FDT replace the fuse 2 FDT only Note 3 In models other than FDT it is CNW2 Notes 4 3 is GND 5 FDT only Control lines connected wr...

Page 95: ...Z YES Note 1 Z is GND Note 2 3 is GND 2 1 Power supply reset Maltifunction by accidental noise YES Normal NO YES Remote controller wire short circuit Remote controller defective Remote controller wire...

Page 96: ...s the voltage on the outdoor unit s transformer secondary side red red AC15V Is the voltage between the red and black wires in the remote controller DC10 11V when the remote controller is disconnected...

Page 97: ...are connected directly to the outdoor unit operate The outdoor unit operates normally Press the check SW and check the registered indoor units Remote controller display is normal Only the indoor units...

Page 98: ...acement indoor unit control PCB Power supply reset Normal Normal NO NO Replacement remote controller NO YES Replacement indoor unit control PCB Remote controller wire short circuit YES NO Replacement...

Page 99: ...ment Defective indoor unit heat exchanger thermistor input circuit Defective indoor unit heat exchanger thermistor Replacement YES YES NO NO Is the air return thermistor connector connection OK Correc...

Page 100: ...teristics of the indoor heat exchanger thermistor OK Does the heating overload state exist NO YES NO NO YES Notes 1 Check if the overload state exists or not using the following check points Is there...

Page 101: ...ommunications are faulty between master and slave indoor units YES NO Are the settings between the master and slave indoor units good Are the unit settings correct YES NO NO Is the wiring between the...

Page 102: ...hite DC15V Replacement indoor unit control PCB Replacement indoor unit control PCB Detective fan motor Replacement indoor unit control PCB Replacement transformer 3 White is GND 1 2 3 White is GND Not...

Page 103: ...unit control PCB Replacement indoor unit control PCB Detective fan motor Replacement indoor unit control PCB Replacement transformer 3 Black is GND 1 2 3 Black is GND Note 2 CNM 3 Black is GND Is the...

Page 104: ...stics of remote controller therm istor OK or is there any broken wire Is the remote controller thermistor connector co nnection OK Correction Temperrature C 0 1 2 4 6 8 10 12 Resistance value k 65 62...

Page 105: ...apacitor noise filter thermistor heat exchanger discharge pipe outdoor temperature power transistor fuse transformer etc b Replacement procedure of outdoor unit microcomputer printed circuit board Mic...

Page 106: ...rost prohibited temperature 45 min Test run operation Normal Test run operation Heating Test run operation Cooling SW3 1 SW3 2 SW3 4 SW5 3 SW5 4 Switch Function ON OFF ON OFF ON OFF ON OFF ON OFF Note...

Page 107: ...then mount it on the PCB If the grease is not applied the power transistor may be damaged Use all the silicone grease Tighten the power transistor mounting screws of the inverter PCB and connect the t...

Page 108: ...T1 T2 T8 T9 T4 T10 T11 Noise filter PCB PWB3 T5 T6 CNO2 CNO1 CNQ1 CNG1 CNI1 CNI3 CNG2 CNI2 CNI4 CNQ2 CNFAN CNQ1 CNQ2 When the outdoor unit fan motor is abnormal Refer to page 114 Must be conductive W...

Page 109: ...D Green LED 2 time flash Keeps flashing Red LED Green LED Stays OFF Keeps flashing Outdoor unit 2 Error display e34 Power supply open phase Indoor unit Red LED Green LED Stays OFF Keeps flashing Red L...

Page 110: ...outdoor unit Is the installation space proper Is the refrigerant level too high Is the heat exchanger dirty or clogged When the following conditions exist the compressor s speed is controlled If the c...

Page 111: ...nute Hold Discharge pipe temperature C Temperature T C Compressor control 100 105 Discharge pipe temp C Release Operoble Error stop Thermistor resistance k 85 115 Abnormal temperature detection Is the...

Page 112: ...compressor restarts If this state is detected 3 times in 40 minutes Is the outdoor air temperature thermistor connector connection OK Repair NO NO YES YES Is the outdoor air temperature thermistor ch...

Page 113: ...3 minute delay the com pressor restarts If this state is detected 3 times in 40 minutes Error display e40 NO Is the service valve fully open The outdoor unit s control PCB is faulty the 63H1 input ci...

Page 114: ...S YES Replace the compressor Check the power transistor module See page 118 OK NG Replace the outdoor unit inverter PCB Replace the outdoor unit inverter PCB It may be malfunction due to transient noi...

Page 115: ...voltage NO Reset the power supply YES Depends on whether or not transient noise passed through Is fuse F2 blown YES Replace the fuse 12 DC Fan motor abnormal Indoor unit Red LED Green LED Stays OFF K...

Page 116: ...pressure sensor is 0 079 MPa or lower continuously for 15 seconds the compressor stops After a 3 minute delay the compressor starts again but if it happens 3 times within 60 minutes Indoor unit Red LE...

Page 117: ...OK Are the suction pipe thermistor characteristics OK is there any broken wire Correction NO YES YES NO Defective outdoor unit PCB Replacement Defective suction pipe thermistor input circuit Defectiv...

Page 118: ...reen LED Stays OFF Keeps flashing Red LED Green LED 5 time flash Keeps flashing Outdoor unit NG NG NO NG YES Check of power supply Replacement compressor Replacement compressor OK Check the refrigeran...

Page 119: ...es on each terminal P Power transistor P terminal U End of red harness to compressor N Power transistor N terminal V End of white harness to compressor W End of black or blue harness to compressor Nor...

Page 120: ...the louver operated with the remote controller YES NO Repair the wire Normal Is LM wire locked NO YES Replace LM Defective indoor unit PCB Operate more than 1 min later Defective indoor unit PCB Repl...

Page 121: ...o will change from flashing to light up continuously Example E8 DATA LOADING This message flashes while data are being read E8 ERROR DATA The data are then displayed beginning with item No 01 Displaye...

Page 122: ...ck display Yellow The following three kinds are displayed Lights continuously Under timer operation Long lighting 2 seconds lighting 1 second stays OFF Filter sign Clean the air filter when this displ...

Page 123: ...ons 126 1 Indoor unit 126 2 Outdoor unit 130 3 Operation chart 131 2 2 2 Range of usage limitations 133 2 2 3 Exterior dimensions 134 1 Indoor unit 134 2 Remote controller Optional parts 137 3 Outdoor...

Page 124: ...emote controller 175 2 5 3 Installation of outdoor unit 176 1 Installation 176 2 Refrigerant piping work 178 3 Air tightness test and air purge 180 4 Refrigerant quantity 180 5 Drain piping work 181 6...

Page 125: ...in the outdoor unit has its own self protection function that reacts according to abnormal high pressure and excessive high temperature 4 There are only three power lines between the outdoor and indoo...

Page 126: ...iling recessed compact type FDTC Ceiling recessed type FDT Ceiling suspended type FDEN Wall mounted type FDKN Outdoor unit to be combined FDC 151 FDCVA302HENR 3 Horse Power Indoor unit assembly capaci...

Page 127: ...re piping Connectable with VP25 I D 25 mm O D 32 mm Necessary both Liquid Gas lines Mounting kit Drain hose Decorative Panel Thermostat by electronics Turbo fan 1 mm in Safety equipment Wired remote c...

Page 128: ...n motor Flare piping Connectable with VP25 I D 25 mm O D 32 mm Necessary both Liquid Gas lines Mounting kit Drain hose Decorative Panel Thermostat by electronics Turbo fan 1 mm in Safety equipment Wir...

Page 129: ...Direct line start Unavailable Polypropylene net 2 Washable Rubber sleeve for fan motor Flare piping Connectable with VP20 I D 20 mm O D 26 mm Necessary both Liquid Gas line Mounting kit Drain hose Th...

Page 130: ...230 240V 50Hz Direct line start Unavailable Long life fillter 2 Washable Rubber sleeve for fan motor Flare piping Connectable with VP16 I D 16 mm O D 22 mm Necessary both Liquid Gas lines Mounting ki...

Page 131: ...e Q ty Noise level 1 The cooling and heating capabilities imply the values when the indoor unit of rated capacity is connected under the condition specified in ISO T1 2 The refrigerant quantity in the...

Page 132: ...andard ISO T1 UNITARY AIR CONDITIONERS 2 The values shown in the above table are common to both cooling and heating operations FDT 151R FDTC 151R FDEN 151R FDKN 151R Cooling power consumption Heating...

Page 133: ...urrent A Power source 100 Total operation characteristics Operation characteristic value of outdoor unit Operation characteristic value of indoor unit Example Conditions Operation Voltage Indoor unit...

Page 134: ...4 minutes or more from start to stop or 3 minutes or more from stop to start 3 minutes or more In the illustration the L is main piping and ra andrb are branch piping Request 1 When the capacity of th...

Page 135: ...115 140 Lug for suspension bolts Control box Drain hose piece Gas piping Liquid piping Suspension bolts Drain 12 7 1 2 6 35 1 4 Accessory Installed at site Connectable with VP25 M10 or M8 Max Drain up...

Page 136: ...780 Suspension bolts pitch 675 Suspension bolts pitch Control box Outside air opening for ducting Exhaust air opening for ducting Control box Gas piping 6 35 1 4 Liquid piping or more Lug for suspensi...

Page 137: ...nded type FDEN Model FDENA151R Unit mm If you are mounting units close together leave a space of 4000 or greater between unit Service space 4 12 18 long hole Service space Space for installation and s...

Page 138: ...intend ed for screw holes and then fix it with screws This side is not grounded Earth wiring Remote control switch Remote control cord Shielded wire Precation in Extending the Remote control cord The...

Page 139: ...138 b Wireless remote controller Unit mm 60 17 150...

Page 140: ...2 3 L1 Open Open 500 L2 300 250 Open L3 100 150 100 L4 250 250 250 Installation type Notes 1 It is prohibited to install in a space enclosed with walls at four sides 2 Unit must be secured with anchor...

Page 141: ...door unit Control box 4way valve High pressure switch 63H1 Low pressure sensor PSL Electronic expansion valve EEVH Electronic expansion valve EEVC Solenoid valve SV1 Compressor Service valve Liquid si...

Page 142: ...er white Front panel Front panel Side panel Vertical louver Horizontal louver Light gray Light gray Air return grille Plaster white 2 2 5 Exterior appearance 1 Indoor unit a Ceiling recessed compact t...

Page 143: ...142 Cool white d Wall mounted type FDKN 2 Outdoor unit Stucco white...

Page 144: ...Check joint Check valve Indoor unit Outdoor unit Electronic expansion valve Electronic expansion valve EEVC Strainer Strainer Receiver Preset point of the protective devices Parts name Mark Thermisto...

Page 145: ...door air temperture 12 W B Indoor air temperture 16 W B 2 Heating 15 16 17 18 19 20 21 22 23 24 25 Indoor air temperature DB Capacity compensation coeffcient 0 50 0 60 0 70 0 80 0 90 1 00 1 10 1 20 1...

Page 146: ...perture 24 W B Indoor air temperture 19 W B Indoor air temperture 12 W B Indoor air temperture 16 W B Indoor air temperature DB Power consumption correction factor 0 50 0 60 0 70 0 80 0 90 1 00 1 10 1...

Page 147: ...temperature DB Sensible heat factor 0 60 0 65 0 70 0 75 0 80 0 85 0 90 0 95 1 00 1 05 15 10 5 0 5 10 15 20 25 30 35 40 43 Indoor air temperture 12 W B Indoor air temperture 24 W B Indoor air tempertu...

Page 148: ...tance limit actual length for each respective piping system Equivalent length Actual length equivalent length of bends x number of bends in the piping Equivalent length for 1 bend 0 15 9 52 15 88 0 25...

Page 149: ...y of the model FDCVA302HENR with the air flow High the piping length of 15m the outdoor unit located 5m lower than the indoor unit indoor wet bulb temperature at 19 0 C and outdoor dry bulb temperatur...

Page 150: ...ir temperature Indoor unit 27 C DB 19 C WB Outdoor unit 35 C DB Notes 2 The data in the chart are measured in an unechonic room Notes 3 The noise levels measured in the field are usually higher than t...

Page 151: ...d Wall mounted type FDKN 2 Outdoor unit Measured based on JIS B 8616 Mike position at highest noise level in position as below Distance from front side 1m Height 1m Model FDCVA302HENR Noise level 48...

Page 152: ...V output XR2 XR3 XR4 XR5 X4 TB CnA Z mark Heating output DC12V output Thermo ON output DC12V output Inspection output DC12V output Remote operation input volt free contact Auxiliary relay For DM Termi...

Page 153: ...utput Inspection output DC12V output XR5 X1 2 3 6 X4 TB CnB Z mark Remote operation input volt free contact Auxiliary relay For FM Auxiliary relay For DM Terminal block mark Connector Closed end conne...

Page 154: ...2V output Thermo ON output DC12V output Inspection output DC12V output Remote operation input volt free contact Auxiliary relay For FM Terminal block mark Connector mark LED 1 LED 2 LED 3 SW1 SW2 Clos...

Page 155: ...t Heating output DC12V output XR3 XR4 XR5 TB CnA Z AMP Thermo ON output DC12V output Inspection output DC12V output Remote operation input volt free contact Terminal block mark Connector Wirelss recei...

Page 156: ...se heater SM1 20S 52X3 CH 52X1 Fan motor Compressor motor FMO1 Mark Meaning of marks CM High pressure switch Thermistor H X temp Thermistor discharge temp Low pressure sensor Thermistor suction temp T...

Page 157: ...0A such as air from entering the refrigerant cycle in installing or moving the air conditioning system Contamination by air or a foreign substance can cause an abnormal pressure build up inside the re...

Page 158: ...dity conditions there is danger of water drops dripping down If there is a possibility that the unit will be used under such conditions install 10 to 20 mm of insulation material to the main unit pipi...

Page 159: ...it main body which can result in such problems that you cannot attach the panel or noises are generated from the interfering fan When embedded into ceiling 1 Determine the positions of hanging bolts 5...

Page 160: ...VP 25 to be procured locally to the joint b Give the drain piping a descending grade 1 50 1 100 and never create a bump to go over or a trap c In connecting drain pipes care must be taken so as not to...

Page 161: ...installation 1 Accessories It is attach to the panel 2 Make sure that the unit main body is positioned at the correct height and the opening on the ceiling is made to the correct dimensions with the l...

Page 162: ...of a control box 11 Like drain pump wiring please band together by the clamp and put in louver motor wiring into a control box Figure 6 12 Please connect a louver motor connector Figure 6 Figure 6 Dr...

Page 163: ...es should be further covered with insulation materials of 10 20 mm thick 3 Consider the supporting strength of the location If the strength is not sufficient to sustain the unit weight use reinforcing...

Page 164: ...1 When a hanging bolt exceeds 1 3 m in length use an M10 bolt and give it reinforcements such as braces Refrigerant piping Drain bolt Suspension Nut Washer Spring Washer Main body Level gauge 10 25mm...

Page 165: ...e such harmful or flammable gas to flow into the room 1 5 m 2 m Suspension bolts Desceding slope greater than 1 100 Insulation material No bump Air vent No trap Not touching the water As wide as possi...

Page 166: ...and fix the unit s installation height Remove the level gauge before installing the unit The unit s installation height can be minutely ad justed by means of the corner openings after the panel is in...

Page 167: ...5 mm Fasten the drain piping side and the opposite corner temporarily 2 Hang the panel on the two suspension bolts to install it temporarily 3 Install the two remaining suspension bolts and tighten a...

Page 168: ...tion is fixed remote control operation and all automatic controls are disabled The actual setting may also differ from the LCD display in the remote controller 1 Turn off the main power supply turn it...

Page 169: ...Air throw 7 5 Unit m Conditions 1 Installation height 2 4 3 0 m above the floor 2 Fan speed Hi 3 Location Free space without obstacles 4 Distance of reach indicates the horizontal distance after the w...

Page 170: ...ral number of indoor units Condition Illuminance at the recelver area 360 lux When no lighting fixture is located within 1 m of indoor unit in an ordinary office When the remote control unit is used w...

Page 171: ...0 215 Fasten the bolts to the front of the slotted holes Air outlet Flat washer accessory parts Ceiling board Fasten it securely with double nuts Suspension bolts Lug for suspension Unit Double nuts F...

Page 172: ...Drain piping left 53 53 109 10 Drain piping For left Drain piping For left back 175 19 Top Cover Unit mm Back cutout Back cover Cutting margin Right side cutout Top cutout 60 100 120 60 47 60 108 31 2...

Page 173: ...pply grills f Location not exposed to direct sunshine g Avoid the location exposed to oil splash or vapor h Avoid the location near to the machine emitting high frequency radio wave i Avoid the locati...

Page 174: ...of mounting plate 1 The indoor unit weighs approx 12kg Therefore check whether the portion to install the unit can bear the weight of unit If it seems to be danger reinforce the portion by a plate or...

Page 175: ...d The end shall not be sub merged in wa ter g Drain piping 1 Lay the drain piping with downgrade to facilitate flow of drain and do not make a trap or chevron shaped bend The drain piping can be taken...

Page 176: ...tions Terminals xRed wire YWhite wire ZBlack wire Use a cord of 0 3mm2 recommended 0 5mm2 maximum for a remote controller cord Remove a sheathe of the remote control ler cord for the section laid with...

Page 177: ...nd the unit by the obstruction Secure the top space for 1 m or more Requ When more than one unit are installed side by side provide a 250mm or wider interval between them as a service space In order t...

Page 178: ...formance degradation a rise of high pressure resulting is an operation interruption a broken fan etc 3 Where the foundation is not stable secure the unit with wire etc Wind direction 1 Install the uni...

Page 179: ...cooling opera tion which may become drain water causing a water leak accident or a risk of burns during a heating operation if touched accidentally with its surface reaching a high temperature becaus...

Page 180: ...of the pipes 0 0 5 6 35 9 52 12 7 15 88 Copper pipe outer diameter Copper pipe protrusion for flaring B mm 1 0 1 5 With an R410A tool In the case of a rigid clutch type With a conventional tool B Ope...

Page 181: ...perature and the pressure d If the pressure does not drop after the units is left for approximately one day the airtighteness is acceptable When the ambient temperature changes 1 C the pressure also c...

Page 182: ...he other two drain holes with grommets 6 Electrical wiring Electrical installation work must be performed by an electrical installation service provider qualified by a power provider of the country El...

Page 183: ...nduit and a voltage drop is 2 For an installation falling outside of these conditions please follow the internal cabling regulations Adapt it to the regulation in effect in each country L1 1 2 3 N Out...

Page 184: ...ocation where it can sense the room temperature 2 Controlling multiple indoor units using a single remote controller Up to 16 indoor units can be controlled with a single remote controller a Run 3 wir...

Page 185: ...ting Indoor unit fan speed setting Louver control setting 01 03 04 05 06 07 08 09 10 Function number A Default setting Hi CEILING SET FILTER SIGN SET POSITION EXTERNAL INPUT SET ROOM TEMP OFFSET FAN C...

Page 186: ...l be displayed one by one Select a desired function 3 Press the SET button The screen display will be switched as follows SETTING Setting C ex AUTO RUN ON 4 Press either or button A list of Settings C...

Page 187: ...ion setting process is completed Then the screen display will be switched to Function number A Function description B so if you want to continue to set another function repeat the stepa as explained a...

Page 188: ...temperature is set at a value lower than the upper limit value The set temperature is transmitted b If the lower limit is set q When in an operating mode other than the heating mode if a temperature t...

Page 189: ...SET OPERATION DATA 2 Press the SET button while OPERATION DATA is displayed 3 The display will change to I U No 00 blinking indication Select the indoor unit number you want to have data displayed wi...

Page 190: ...est run method a A test run can be initiated from an outdoor unit by using SW5 3 and SW5 4 for on site setting b Switching SW5 3 to ON will start the compressor c The unit will start a cooling operati...

Page 191: ...screw for holder Parts set Remote controller holder Quantity Quantity Name TIMER CHECK RUN TIMER CHECK RUN Receiver Check monitor Remote controller signal receiving part Backup switch Operation displa...

Page 192: ...l installation Refer to 165 page 2 Remove the air return grille Refer to 166 page 3 Remove a corner panel located on the refrigerant pipe side 4 Remove three screws and detach the cover indicated as a...

Page 193: ...her with other wiring laid on site into the indoor unit 4 Connect the wiring to the terminal block provided in the control box as follows X Red Y White Z Black 5 Attach the wireless kit to the panel a...

Page 194: ...e controller is operated 1m above the floor under the ceilling that is 2 4m above the floor When illuminance doubles the receivable range drops to two thirds 3 Points for attention in connecting a plu...

Page 195: ...tions or fixing could cause heating and fires Always use the enclosed parts and designated parts for the installation work parts Use of parts not designated by Mitsubishi could cause electric shocks o...

Page 196: ...type or where light may directly contact the light detection surface 6 Places hidden by the indoor unit etc when looking from the wireless remote controller operation positions 7 Places subject to the...

Page 197: ...through the hole on the lower case 4 Fit the lower case onto the bracket and fix the lower case to the bracket using the two installation holes shown above The other four holes are not used 5 Follow s...

Page 198: ...ated at a height of 1 m from the floor with a ceiling height of 2 4 m The reception distance becomes 2 3 when the illuminance is double Conditions b When installed on wall Reception section illuminanc...

Page 199: ...PACKAGED AIR CONDITIONER Air Conditioning Refrigeration Systems Headquarters 16 5 2 chome Kounan Minato ku Tokyo 108 8215 Japan Fax 03 6716 5926 P M P...

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Mitsubishi FDCVA302HENR, Manual

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