Mitsubishi SRK25GZ-L1 Specifications

1SRK-GZ1. WALL MOUNTED TYPEROOM AIR-CONDITIONERSplit system, Air to airheat pump typeSRK25GZ-L1, SRK35GZ-L1, SRK502Z-L()1SRK-GZ

10SRK-GZModel SRC35GZ-L15055Drain holes MAX.802657955865255272221423149344142.5 510 33142.5403211545°45° Service Valve(Liquid)Flare connectingØ6.35

11SRK-GZ1.2.4 Piping systemModel SRK35GZ-L1Heat exchangerStrainerService valve (Liquid)Flare connectingService valve (Gas)Roomtemp.thermistorPiping (G

12SRK-GZ1.3 ELECTRICAL DATA1.3.1 Electrical wiringMeaning of marksSymbol Parts name Symbol Parts name Symbol Parts nameCFI Capacitor for FMI RE Reacto

13SRK-GZColor symbolBRREWHWHVVUVWRDWHBKNFDSDSCNCCNBCNDCNWCNUCNMCNE CNGTh1Th5Th6Th7Th252C352CNCNBCNC52C4JBKBLBRLBYRDGYWHVY/GNRDRE(Power sourceSignal li

14SRK-GZModel SRK35GZ-L1Color symbolBRREWHWHVVUVWRDWHBKNFDSDSCNCCNBCNDCNWCNUCNMCNE CNGTh1Th5Th6Th7Th252C352CNCNBCNC52C4JBKBLBRLBYRDGYWHVY/GNRDRE(Power

15SRK-GZModel SRK502Z-LPower source1 phase 220/240V 50HzEEVCNUCNMCNE CNHBack upswitchWirelessR-AmpDisplayCNF CNGTh3Th2Th1Th7Th6Th5ZNR52CPrinted circui

16SRK-GZ1.4OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER(1) Remote control switchIndoor unit indicatorFAN SPEED ON/OFFMODETEMPAIR FLOWSET TIMER TIMERA

17SRK-GZ(2) Back-up switchWhen the remote controller become weak, or if the remote controller is lost or mal-functioning, this switch may be used to t

18SRK-GZ(3) Flap controlControl the flap by AIRFLOW button on the wireless remote control.(a) Natural flow (AUTO)The flap will be automatically set to

19SRK-GZ(5) Outline of heating operation(a) Air flow selection(i) Frequency of inverter changes within the range of selected air flow.(4) Comfort time

2SRK-GZCONTENTS1.1 GENERAL INFORMATION... 31.1.1 Specific features ...

20SRK-GZ¡ Hot keep M mode [During HI POWER operation (for 15 min.)]S SRK502Z-L(iii) Continuous mode operation (Temperature setting button on remote co

21SRK-GZ(v) Defrosting operationS Models SRK25GZ-L1, 35GZ-L11) Starting conditions (Defrosting operation can be started only when all of the followin

22SRK-GZ1) Starting conditions (Defrosting operation can be started only when all of the following conditions are met.)1 After start of heating operat

23SRK-GZModel SRK25GZ-L1 SRK35GZ-L1 SRK502Z-L1 cycle 1 cycle 1 cycleItem 2 min. 3 min. 2 min. 3 min. 2 min. 3 min.Inverter frequency 92Hz 102Hz 108rps

24SRK-GZOFFONOFF0343625 : 4835 : 50Operating patternD range C range B range A rangeInverter frequencyIndoor fanOutdoor fanDetermination of coolin

25SRK-GZ(b) The unit checks the temperature every hour after the start of operation and, if the result of check is not same as the previousoperation m

26SRK-GZ(d) Current safe(i) Purpose: Current is controlled not to exceed the upper limit of the setting operation current.(ii) Detail of operation: In

27SRK-GZ(I) Compressor overheat protection(i) Purpose: It is designed to prevent deterioration of oil, burn of motor oil and other trouble resulting f

28SRK-GZNote (1) When the start delay of compressor of indoor unit controller is actuated and the operation is reset, it takes 2 minutes and 55 second

29SRK-GZS SRK502Z-LNote (1) When the start delay of compressor of indoor unit controller is actuated and the operation is reset, it takes 2 minutes an

3SRK-GZ1.1 GENERAL INFORMATION1.1.1 Specific featuresThe “Mitsubishi Daiya” room air-conditioner: SRK series are of split and wall mounted type and th

30SRK-GZ1.5 APPLICATION DATASAFETY PRECAUTIONS¡ Please read these “Safety Precautions” first then accurately execute the installation work.¡ Though th

31SRK-GZ1.5.1 Selection of location for installation(1) Indoor unit(a) Where there is no obstructions to the air flow and where the cooledair can be e

32SRK-GZ1.5.2 Installation of indoor unit(1) Installation of installation board(a) Fixing of installation board(2) Drilling of holes and fixture sleev

33SRK-GZ(i) Open the suction grille, then remove the lid.(ii) Remove the wiring clamp.(iii) Pass the connecting wire to terminal block from behind of

34SRK-GZ1 Brown For power supply, indoor outdoor2 Blue Connecting wiring3 Black Indoor/outdoor signal wire (Low voltage)Yellow/Green Earth Wiring Term

35SRK-GZ1.5.4 Refrigerant piping(1) PreparationKeep the openings of the pipes covered with tapes etc. to prevent dust, sand, etc. from entering them.I

36SRK-GZModelItemSRK25GZ-L1 SRK35GZ-L1 SRK502Z-LCooling –––Heating 1.76~1.96 (18~20) 1.76~1.96 (18~20) 2.06~2.25 (21~23)Cooling 0.39~0.49 (4~5) 0.39~0

37SRK-GZ(b) When manipulating the remote controller mounted ona wall:Make sure that it works normally (i.e., transmission/receptionsignal is audible)

38SRK-GZ1.6 MAINTENANCE DATA1.6.1 Trouble shooting(1) Trouble shooting to be performed prior to exchanging PCB, (Printed circuit board) [Common to all

39SRK-GZ(2) Self diagnosis display on indoor unitTIMER lampONRUN lamp1 time flash2 time flash6 time flashRUN lampkeeps flashingTIMER lamp1 time flash2

4SRK-GZ1.2 SELECTION DATA1.2.1 SpecificationsModel SRK25GZ-L1 (Indoor unit)SRC25GZ-L1 (Outdoor unit)ItemModelSRK25GZ-L1 SRC25GZ-L1Cooling capacity(1)W

40SRK-GZ(3) Inspection procedures corresponding to detail of trouble[Broken thermistor wire,connector poor connection]Is connector connection good?YES

41SRK-GZIs discharge pipe (Comp. dome)thermistor resistance value good?Is sufficient quantity of refrigerantcirculated?Defective inverterYESYESNONOYES

42SRK-GZSerial signal transmission error[Wiring error including power cable, defective indoor/outdoor unit PCB, error on power supply system]Does erro

43SRK-GZ(4) Phenomenon observed after shortcircuit, wire breakage on thermistor.(a) Indoor unitOperationmodeRoom temperaturethermistorContinuous compr

44SRK-GZ(6) Inspection procedures of indoor electrical equipment(7) Inspection procedures of inverter assemblyWhen the inverter is judged to be defect

45SRK-GZ◆ Check point of outdoor unit (SRC25GZ-L1)◆ Inspection of noise filter¡ Check the voltage between terminals 3~4. (AC220/240V)◆ Inspection

46SRK-GZ◆ Check point of outdoor unit (SRC35GZ-L1)◆ Inspection of noise filter¡ Check the voltage between terminals 3~4. (AC220/240V)◆ Inspection

47SRK-GZ◆ Check point of outdoor unit (SRC502Z-L)◆ Inspection of resistance value of Comp. dome thermistorRemove the connector and check the resist

48SRK-GZLiquid sideGas sideCheck jointService hoseCharge hoseVacuumpumpRefrigerantcylinderGaugemanifold1.6.2 Servicing(1) EvacuationThe evacuation is

49SRK-GZ1.6.3 Power supply remote operationWhen the remote part on indoor unit PCB is modified, the air conditioner is turned ON-OFF by power supply O

5SRK-GZItemModelSRK35GZ-L1 SRC35GZ-L1Cooling capacity(1)W 3650 [900~3900]Heating capacity(1)W 4800 [900~6100]Power source 1 Phase, 220/240V, 50HzCoo

50SRK-GZMEMO

6SRK-GZItemModelSRK502Z-L SRC502Z-LCooling capacity(1)W 5000 [900~5600]Heating capacity(1)W 6700 [900~7900]Power source 1 Phase, 220/240V, 50HzCooli

7SRK-GZ1.2.2 Range of usage & limitations(1) Inlet air temperature(a) Cooling operation(2) Total one way piping length and vertical height differe

8SRK-GZA75075924060746.97.56262 7.516VIEW A75615150450 150Room temp. thermistorTerminal blockPiping for Gas (Ø9.52) 370Piping for Liquid (Ø6.35) 420Pi

9SRK-GZ(2) Outdoor unitModel SRC25GZ-L1192.5372.582.548082.561.52-Ø12Terminalblock127.733.340˚40˚645Drain holesService valve (Gas)Flare connecting Ø9.