Mitsubishi SRK56A Specifications

11. WALL MOUNTED TYPE ROOM AIR-CONDITIONERSplit system, Air to airheat pump typeSRK50HASRK56HASRK408HENF-L3()1

10Model SRK408HENF-L3Heat exchangerStrainerService valve (Liquid)Flare connectingService valve (Gas)RoomtemperaturesensorPiping (Gas)Ø12.7Piping (Liqu

111.2.5 Selection chartCorrect the cooling and heating capacity in accordance with the conditions as follows. The net cooling and heating capacity c

12Notes (1) ; denotes magentized relay ×: denotes demagnetized relay(2) Th1 is room temperature thermistor. Th2 (the heat exchanger thermistor) i

13Model SRK408HENF-L3Color symbolBK BlackBL BlueBR BrownRD RedOR OrangeWH WhiteY/GN Yellow/GreenMeaning of marksSymbol Parts name Symbol Parts nameCc

14CONTHI POWERECONOON OFFTIMERFAN SPEED ON/OFFMODETEMPAIR FLOWTIMERCANCELHI POWERECONO ON OFFACLAUTOHIMEDLO1.4 OUTLINE OF OPERATION CONTROL BY MICRO

15CONTON OFFTIMERFAN SPEED ON/OFFMODETEMPAIR FLOWSET TIMERTIMERACLAUTOHIMEDLOTEMPERATURE IndicatorIndicates set temperature.(Does not indicate tempera

16(2) Flap controlControl the flap by AIRFLOW button on the wireless remote controller.(a) Natural flow (AUTO)The flap will be automatically set to th

17(3) Back-up SwitchWhen the remote controller batteries become weak, or if the remote controller is lost or malfunctioning, this switch may be used t

18(c) When switching to automatic operation during “Heating” “Cooling” “Dry” or when restarting with in 30 minutes (40 : 1hour) after stopping with au

19(b) Fan speed knob: AUTOThe indoor fan is automatically controlled in accordance with the difference between the room temperature (detectedby the ro

2CONTENTS1.1 GENERAL INFORMATION ...31.1.1 Specific features ...

202) Functiona) The indoor fan motor is controlled in accordance with the temperature of the indoor heat exchanger to send warm airfrom the start.b) W

21Note (1) Thermostat operation is performed in A, B Block. When compressor and indoor fan stop by thermostat operation within 12 minutes from start,

22(12) Dew condensation prevention control for cooling operationThis prevents dew condensation, in the indoor unit, from occurring.(a) Operating condi

23(17) Three-minute forced operationWhen the compressor begins operating the thermal operation is not effective for 3 minutes, so operation continues

24(21) Self diagnosis functionWhen something abnormal happens on the outdoor unit, indoor unit fan motor and each sensor (heat exchanger, room tempera

251.5 APPLICATION DATASAFETY PRECAUTIONS¡ Please read these “Safety Precautions” first then accurately execute the installation work.¡ Though the prec

261.5.1 Selection of location for installation(1) Indoor unit(a) Where there is no obstructions to the air flow and where thecooled air can be evenly

271.5.2 Installation of indoor unit(1) Installation if installation board(a) Fixing of installation boardLock for the inside wall structures (Intermed

28Use cables for interconnection wiring to avoid loosening of the wires.CENELEC code for cables Required field cables.H05 RNR3G1.5 (Example)H Harmoniz

29Declining slope[When the pipe is extended to left and taken out from the rear center]Note (1) It is designed to collect moistureaccumulated on the r

31.1 GENERAL INFORMATION1.1.1 Specific featuresThe “Mitsubishi Daiya” room air-conditioner: SRK series are of split and wall mounted type and the

30Indoor unit side Outdoor unit side¡ Remove the flared nuts.(on both liquid and gas sides)¡ Remove the flared nuts.(on both liquid and gas sides)¡ In

31ItemModelSRK408HENF-L3Cooling –High pressure MPa(kgf/cm2)Heating 1.76 ~ 1.96 (18 ~ 20)Cooling 0.39 ~0.49 (4.0 ~ 5.0)Low pressure MPa(kgf/cm2)Heating

32(220/230/240V)ItemModelSRK50HA SRK56HACooling – –High pressure MPa(kgf/cm2)Heating 1.86 ~ 2.06 (19~21) 1.86 ~ 2.06 (19~21)Cooling 0.39 ~ 0.49 (4 ~ 5

331.6 MAINTENANCE DATA1.6.1 Trouble shooting(1) Trouble shooting to be performed prior to exchanging PCB, (Printed circuit board) [Common to all model

34(2) Indication of Self Diagnosis (Indoor unit)(3) TroubleshootingAbnormality of outdoor unit [Compressor malfunction of insufficient gas (refrigeran

35Is connection to connectorgood?Is thermistor resistancevalue normal?Replace PCB.Repair connector.Replace thermistor.NoNoYesYesAnormality of thermist

36(6) How to make sure of remote controllerUnit Thermistor OperationFunctionShort circuit Broken connectionCoolingHeatingCoolingHeatingCoolingHeatingI

37Liquid sideGas sideCheck jointService hoseCharge hoseVacuumpumpRefrigerantcylinderGaugemanifold1.6.2 Servicing(1) EvacuationThe evacuation is an pro

381.6.3 Power supply remote operationWhen the remote part on indoor unit PCB is modified, the air conditioner is turned ON-OFF by power supply ON-OFF

39S50,56 modelsCut the jumper wire for the “REMOTE” section on the printed circuit board.Carefully position the jumper wire so that it does not come i

41.2 SELECTION DATA1.2.1 SpecificationsModel SRK50A (Indoor unit)SRC50HA (Outdoor unit)ItemModelSRK50A SRC50HACooling capacity(1)W 4500Heating cap

40MEMO

5Model SRK56A (Indoor unit)SRC56HA (Outdoor unit)ItemModelSRK56A SRC56HACooling capacity(1)W 5000Heating capacity(1)W 6200Power source 1 Phase, 220/23

6Model SRK408HENF-L3 (Indoor unit)SRC408HENF-L3 (Outdoor unit)ItemModelSRK408HENF-L3 SRC408HENF-L3Cooling capacity(1)W 3500/3500Heating capacity(1)W 4

71.2.2 Range of usage & limitations1.2.3 Exterior dimensions(1) Indoor unit Models SRK50A, 56AIndoor return air temperature(Upper, lo

8(2) Outdoor unit Models SRC50HA, 56HA42.7Drain holeElogated hole (2-12X16) Terminal blockService valve (Liquide)Ø6.35 (1/4'')Serv

91.2.4 Piping system Models SRK50HA, 56HAHeat exchangerStrainerService valve (Liquid)Flare connectingService valve (Gas)High pressure switch