Mitsubishi Mr.Slim PKA-A18HAL Service Manual

SERVICE MANUALCONTENTS1. TECHNICAL CHANGES ································· 22. REFERENCE MANUAL ·································· 23. SAFETY PRECAU

10PUZ-HA30NHA2Representative matchingPKA-A36KAModeCOOLING HEATINGTotal Capacity BTU/h33,5002,79038,0003,410Input WElectrical circuitIndoor unit modelP

117OUTLINES AND DIMENSIONSPUZ-HA30NHA Unit : mm<inch>PUZ-HA36NHAPUZ-HA30NHA2PUZ-HA36NHA2Min. 1000mm<39-3/8>Min. 150mm<5-29/32>Min.

128WIRING DIAGRAM12345678MODEL SW6+1MODEL SELECT+2. SW5 -1 to 5 : Function SwitchSW5-6+2OFFON30NOFFON123456TB1MCMF1, MF221S463HTH3,TH32,TH33TH4TH6TH7T

139WIRING SPECIFICATIONS9-1. INDOOR UNIT POWER SUPPLIED FROM OUTDOOR UNITThe following connection patterns are available.The outdoor unit power supply

149-2. SEPARATE INDOOR UNIT/OUTDOOR UNIT POWER SUPPLIESThe following connection patterns are available.The outdoor unit power supply patterns vary on

159-3. INDOOR – OUTDOOR CONNECTING CABLE+ The Max. cable length may vary depending on the condition of installation, humidity or materials, etc.Indoor

169-4-3. Regulations in address settingsIn case of multiple grouping system, M-NET and refrigerant address settings should be done as explained in the

1710REFRIGERANT SYSTEM DIAGRAMPUZ-HA30NHA PUZ-HA36NHA unit : mm(inch)PUZ-HA30NHA2 PUZ-HA36NHA2DistributorThermistor TH7(Outdoor)Heat exchangerRefrige

1811 TROUBLESHOOTING<Error code display by self-diagnosis and actions to be taken for service (summary)>Present and past error codes are logged

19[TEST] buttonPipe (liquid) temperatureDisplays the remainingtest run time."TEST RUN" and the currently selectedoperation mode are displaye

22-1. INDOOR UNITModel name Service Ref.ServiceManual No.PLA-A18/30/36BA PLA-A18/36BA(1)OCH420OCB420PKA-A18GA PKA-A18GA/GA1/GA2OC369PKA-A18GAL PKA-A18

20Start and finish of test run [For outdoor controller board] • Operation from the indoor unitExecute the test run using the installation manual for t

2111-3. HOW TO PROCEED "SELF-DIAGNOSIS"11-3-1. When a Problem Occurs During OperationON/OFFWhen using remote-/local-controller combined ope

22Transmission data from remote controllerTransmission data on transmission pathWhen the number of data errors is "02":Press the ON/OFF but

23• "CHECK" lights, and refrigerant address "00" blinks.• Check that the remote controller's display has stopped before co

24[Output pattern A] Errors detected by indoor unit[Output pattern B]E9*1 If the beeper does not sound again after the initial 2 beeps to confirm the

2511-4. SELF-DIAGNOSIS ACTION TABLE<Abnormalities detected when the power is turned on> (Note 1) Refer to indoor unit section for code P and co

26Error Code Abnormal point and detection method Judgment and actionEb(6845)Miswiring of indoor/outdoor unit connecting wire (converse wiring or dis-

27<Abnormalities detected while unit is operating>Error CodeAbnormal point and detection method Judgment and actionU1(1302)High pressure (High-

28ThermistorsOpen detection Short detectionSymbol NameTH3,TH32,TH33TH6TH7TH8– 40[-40°F] or below– 40[-40°F] or below– 40[-40°F] or below– 27[-17°F

29UH(5300)Current sensor error• Abnormal if current sensor detects –1.5A to 1.5A during compressor operation. (This error is ignored in case of test r

33 SAFETY PRECAUTIONCautions for units utilizing refrigerant R410A3-2. CAUTIONS RELATED TO NEW REFRIGERANTUse new refrigerant pipes.Make sure that the

30Error Code Abnormal point and detection method Judgment and actionUL(1300)Abnormal low pressure (63L worked)Abnormal if 63L is worked (under -0.03M

31Error Code Abnormal point and detection method Judgment and actionE9(6841)Indoor/outdoor unit communication error (Transmitting error) (Outdoor uni

32P81 Slight temperature difference between indoor room tempera-ture and pipe <liquid or con-denser/evaporator> tempera-ture thermistor• Shortag

33Error Code Abnormal point and detection method Case Judgment and actionA0(6600)Address duplicate definitionThis error is displayed when transmissio

34Continued to the next page.Error Code Abnormal point and detection method Case Judgment and actionA7(6607)NO ACK signal1. Transmitting side control

355. If displayed address or attribute is FRESH MASTER, indoor unit detects abnormality when indoor unit transmitted to FRESH MASTER and there was no

3611-5. TROUBLESHOOTING BY INFERIOR PHENOMENA Phenomena Factor Countermeasure1. Remote controller display does not work.2. “PLEASE WAIT” display is re

37PhenomenaFactorCountermeasure7. Remote controller display works nor-mally and the unit performs heating operation, however, the capacity cannot be f

38How long is “PLEASE WAIT” kept being displayed on the remote controller?6 minutes or more2 minutes or less2 to 6 minutesNONOYESYESAre any error code

39AC 187V to AC 253V?AC 187V to AC 253V?AC 187V to AC 253V?DC 12V to DC 16V?DC 12V to DC 16V?NOYESNOYESNOYESYESNOYESNOCheck the voltage between S1 an

4GravimeterUnit[3] Service tools Use the below service tools as exclusive tools for R410A refrigerant. No. Tool name Specifications 1 Gauge manif

40AC 187V to AC 253V?Are there looseness or disconnection of the indoor/outdoor connecting wire?Is anything displayed?DC 17V to DC 28V?Is “E8” display

41DC 10V to DC 16V?YESNOLightingBlinkingLightingBlinkingCheck the voltage of the terminal block (TB6) of the remote controller.Check the status of the

42The operating display of remote controller does not come on.Phone Calls From Customers How to Respond Note Check if power is supplied to air co

43Phone Calls From Customers How to Respond Note Check the set temperature of remote controller. The outdoor unit cannot be operated if the set

44Air blows out for a while after HEAT operation is stopped.Phone Calls From Customers How to Respond Note This is not a malfunction. The blow

45Phone Calls From Customers How to Respond NoteThis is not a malfunction.This may occur when the operation gets started in the room of high humidity

46123456MGrayOrangeRedYellowBlackParts nameCheck pointsDisconnect the connector then measure the resistance with a tester. (Ambient temperature 10~30

47Notes · High voltage is applied to the connecter (CNF1, 2) for the fan motor. Pay attention to the service. · Do not pull out the connector (CNF1, 2

4811-7. HOW TO CHECK THE COMPONENTS<Thermistor feature chart>Low temperature thermistors• Thermistor <Outdoor pipe> (TH3)• Thermistor <

49<Output pulse signal and the valve operation>(2) Linear expansion valve operationOpenExtra tightning (about 32 pulse)Pulse number500 pulseO

53-3. CAUTIONS FOR REFRIGERANT PIPING WORKNew refrigerant R410A is adopted for replacement inverter series. Although the refrigerant piping work for R

50Main bodyLead wireStopperCoil(3) How to attach and detach the coil of linear expansion valve<Composition>Linear expansion valve is separable i

51(4) Releasing emergency operation 1 Turn the main power supply off. 2 Set the emergency operation switch (SWE) on indoor controller board

52(5) Operation data during emergency operation During emergency operation, no communication is performed with the indoor unit, so the data items nee

53Communication power supply D71 Voltage 24V DCCNSS1-S2: 208/230V ACCNAC2 to 4:Power supply for out-door controller circuit board (208/230V AC) 1 to 3

54CNAC1, CNAC2208/230V AC(Connect to the outdoor control-ler circuit board (CNAC))EIConnect to the earthCN5Primary current(Connect to the outdoor powe

55Outdoor power circuit boardPUZ-HA30NHAPUZ-HA36NHAPUZ-HA30NHA2PUZ-HA36NHA2TABP1Connect to 52CTABP2/SC-P2Connect to the ACTMCN4Connect to the outdoor

56Active filter modulePUZ-HA30NHA PUZ-HA36NHA PUZ-HA30NHA2 PUZ-HA36NHA2L1, L2Connect to the DCL(Reactor)Connect to the outdoor power ci

57w1 Forced defrost should be done as follows.1 Change the DIP SW1-1 on the outdoor controller board from OFF to ON.2 Forced defrost will start by the

5812345678OFFON36NOFFON12345612345678MODEL SW6 SW5-6OFFON30NOFFON123456123,4,563456123,4123456786ON OFFNo.Function Effective timingAction by the switc

59Special function(a) Low-level sound priority mode (Local wiring) Unit enters into Low-level sound priority mode by external signal input setting.

64 FEATURESHIGH HEATING CAPACITYIndustry-first flash injection circuit is equipped, which enables to keep the equal capacity to the rating even when o

60<Display function of inspection for outdoor unit>The blinking patterns of both LED1(green) and LED2(red) indicate the types of abnormality whe

61U2U7U1ULU8UdUFUPUHU6U3U4U5U9P1P2P9P4P5P6P8Indication ErrorErrorcode+1Outdoor controller boardContents Inspection methodLED1 (Green)LED2 (Red)3 blink

62<Outdoor unit operation monitor function>[When optional part “A-Control Service Tool(PAC-SK52ST)” is connected to outdoor controller board(CNM

63SW2 setting1ON23456Display detailExplanation for displayUnitPipe temperature / Liquid(TH3) – 40~194– 40~194 (– 40~90:)(When the coil thermistor d

64SW2 setting1ON23456Display detailExplanation for displayUnitPipe temperature / Liquid(TH3) on erroroccurring– 40~194– 40~194 (– 40~90:)(When the coi

65SW2 setting1ON23456Display detailExplanation for displayUnitCapacity setting displayDisplayed as an outdoor capacity codeCodedisplay1ON234561ON23456

661ON23456degFDischarge superheat. SHd0~327 Cooling = TH4-TH6 Heating = TH4-TH50~327 (0~182degC)(When the temperature is 100degF or more, hun- d

67SW2 settingDisplay detailExplanation for displayUnit1ON23456%Capacity save0~100When air conditioner is connected to M-NET and capacity save mode is

68SW2 settingDisplay detailExplanation for display Unit1ON23456PulseLEV-A opening pulse on error occurring0~4800~480(When it is 100 pulse or more, hun

69SW2 setting Display detail Explanation for display UnitdegF0~327 (0~182degC)(When the temperature is 100degF or more, hundreds digit, tens digit an

75 SPECIFICATIONSService Ref.PUZ-HA36NHAPower supply Phase SingleCycle 60HzVoltage 208/230VMCA A 28MOCP A 40Breaker size A 30External finish Munsell 3

70SW2 settingDisplay detailExplanation for displayUnitControlling status of compressor operating frequency1ON23456CodedisplayThe following code will b

71●Reduces maintenance work drastically.●Enables you to check operation data of the indoor and outdoor units by remote controller.Furthermore, use of

72●Data measurementWhen the operation is stabilized, measure operation data as explained below.(4) Press the [TEMP] buttons ( and ) to select the d

7312-2. GUIDE FOR OPERATION CONDITIONInspection item ResultPower supplyLoose con-nectionBreaker Good RetightenedTerminal block Outdoor Unit Good Retig

7413 FUNCTION SETTINGFunctionSettingsMode No.Setting No. : Initial setting (when sent from the factory)RemarksPower failure automatic recoveryIndoor

75FunctionSettingsNo.ModeNo.Setting: Initial setting (Factory setting)- : Not available4-WaycassetteWallmountedPKA-GA(L)PKA-FA(L)Filter sign100h12500h

76 Select mode No. 02 (room temperature detection position). Select setting No. 03 (remote controller fixed). (Use  and .) Enter the sett

77[Operating Procedure] Check the setting items provided by function selection.If settings for a mode are changed by function selection, the function

78ON/OFFTEMPFANVANEMODECHECKLOUVERTEST RUN AUTO STOP AUTO STARThminCHECKRESETSETCLOCKThe flow of the function selection procedure is shown belo

7913-2. FUNCTION SELECTION OF REMOTE CONTROLLERThe setting of the following remote controller functions can be changed using the remote controller fun

8Piping Length (one way)ChargedFactoryService Ref. 100ft 110ft 120ft 130ft 140ft 150ft 160ft 165ft30m 33m 37m 40m 43m 46m 49m 50mPUZ-HA30NHAPUZ-HA36NH

80OFFno1no2OFFONOFFONOFFOFFCALL-ONOFFONOFF°C°FPAR-21MAAON/OFFFILTERCHECKOPERATIONCLEARTESTTEMP.MENUBACK DAYMONITOR/SETCLOCKON/OFFEnglishGermanSpanishR

8113-3. Function selection of wireless remote controllerTEMPERATURE DISPLAY -C/-F SETTING (Change of temp mode from -F to -C)1 Press the set button wi

8214-1. HOW TO "MONITOR THE OPERATION DATA"• Turn on the [Monitoring the operation data](1)(2)(3)(4)(5)(6)(7)(1) Press the TEST button

8314-2. REQUEST CODE LIST* Certain indoor/outdoor combinations do not have the request code function; therefore, no request codes are displayed.Reques

84Request codeRequest contentDescription(Display range)Unit Remarks50515253545556575859606162636465666768697071727374757677787980818283848586878889909

85Request codeRequest contentDescription(Display range)Unit Remarks10310410510610710810911011111211311411511611711811912012112212312412512612712812913

86Request codeRequest contentDescription(Display range)Unit Remarks153154155156157158159160161162163164165166167~189190191192~7647657667670 – 99990 –

87Frequency control state DisplayDischarge temperatureCondensation temperatureAnti-freezeHeatsink temperatureoverheat preventionoverheat preventionpr

88[Fan control state] (Request code :" 53")Data displayFan step correction value by heatsink temperature overheat prevention controlFan step

89[Contact demand capacity] (Request code "61")Data display000Setting content[External input state] (Request code "62")Data displa

96-4. STANDARD OPERATION DATAPUZ-HA30NHARepresentative matchingPKA-A36FAModeCOOLING HEATINGTotal Capacity BTU/h34,200 38,000Input W2,950 3,100Electric

90SW1, SW2, SW6, SW7123456000000 0000100000 0001010000 0002110000 0003001000 0004101000 0005011000 0006111000 0007000100 0008100100 0009010100 000A110

91[Indoor unit – Model setting information] (Request code : 162)Data display00See the table on the right.Display Model setting state Display Model se

92OPERATING PROCEDUREPHOTOS & ILLUSTRATIONPUZ-HA30NHA PUZ-HA36NHA PUZ-HA30NHA2 PUZ-HA36NHA2 1. Removing the service panel and top pan

93OPERATING PROCEDURE PHOTOSPhoto 44. Removing the thermistor <Outdoor 2-phase pipe> (TH6) and thermistor <Outdoor>(TH7)(1) Remove the ser

94OPERATING PROCEDUREPHOTOS 7. Removing the 4-way valve coil (21S4), and linear expansion valve coil (LEV-A, LEV-B, LEV-C)(1) Remove the service panel

95OPERATING PROCEDUREPHOTOS 11. Removing bypass valve coil (SV) and bypass valve(1) Remove the service panel. (See Figure 1.)(2) Remove the top panel

OPERATING PROCEDUREPHOTOS 13. Removing the compressor (MC)(1) Remove the service panel. (See Figure 1.)(2) Remove the top panel. (See Figure 1.)(3) R