Mitsubishi Mr.Slim PKA-A.HA4- User Manual

Page 2 - REFERENCE MANUAL

2 1 REFERENCE MANUAL 1-1. OUTDOOR UNIT SERVICE MANUAL Service Ref. Service Manual No. PUZ-A18/24/36NHA4PUZ-A18/24/36NHA4-BSPUY-A12/18/24/36NHA4PUY-A12/18/24/36NHA4-BS OCH481 OCB481 Radio frequency interface Wired remote controller IR wireless remote controller ON/OFF TEMP. COOL DRY AUTO FAN HEAT RF ...

Page 3 - SAFETY PRECAUTION; Cautions for units utilising refrigerant R410A; Use new refrigerant pipes.; Be sure to use a filter drier for new refrigerant.

3 SAFETY PRECAUTION 2 Cautions for units utilising refrigerant R410A 2-2. CAUTIONS RELATED TO NEW REFRIGERANT Use new refrigerant pipes. Store the piping to be used indoors during installation, and keep both ends of the piping sealed until just before brazing. (Leave elbow joints, etc. in their pack...

Page 4 - PART NAMES AND FUNCTIONS; Indoor unit; Filter

4 Gravimeter Unit [3] Service tools Use the below service tools as exclusive tools for R410A refrigerant. 3 PART NAMES AND FUNCTIONS Indoor unit Filter Air intake Louver Air outlet Vane No. Tool name Specifications 1 Gauge manifold · Only for R410A· Use the existing fitting specifications. (UNF1/2)·...

Page 5 - Wired; °F°C; Display Section

5 ● Wired remote controller (Option) °F°C °F°C ERROR CODE AFTER TIMER TIME SUN MON TUE WED THU FRI SAT ONOFF HrAFTER FILTER FUNCTION ONLY1Hr. WEEKLY SIMPLE AUTO OFF PAR-21MAA ON/OFF FILTER CHECK OPERATION CLEAR TEST TEMP. MENU BACK DAY MONITOR/SET CLOCK ON/OFF •• Display Section For purposes of this...

Page 6 - IR wireless

6 ● IR wireless remote controller (Option) ON/OFF TEMP FAN VANE TEST RUN AUTO STOP AUTO START h min LOUVER MODE CHECK RESET SET CLOCK MODEL SELECT NOT AVAILABLE SWING CHECK FAN TEST RUN °F °C AMPM STOP START AMPM COOL DRY AUTO FAN HEAT VANE CONTROL button Changes the air flow direction. CLOCK button...

Page 7 - SPECIFICATIONS

7 SPECIFICATIONS 4 AA kW F.L.A m 3 /min(CFM) Pa(mmAq) dB mm(in.)mm(in.)mm(in.)mm(in.) kg(lbs) Service Ref. Power supply(phase, cycle, voltage) Max. Fuse SizeMin.Circuit Ampacity External finishHeat exchangerFan Fan(drive) % No. Fan motor outputFan motor Airflow(Low-Middle-High) External static press...

Page 8 - NOISE CRITERION CURVES; UNIT

8 5 NOISE CRITERION CURVES 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATETHRESHOLD OFHEARING FORCONTINUOUSNOISE NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 OCT A VE BAND SOUND PRESSURE LEVEL, dB (0dB=0.0002 μ bar) BAND CENTER FREQUENCIES, Hz PKA-A12HA4 PKA-A18HA4 High NOTCH Low 43...

Page 9 - OUTLINES AND DIMENSIONS

9 OUTLINES AND DIMENSIONS 6 PKA-A12HA4 PKA-A18HA4 Unit: inch (mm) 1/2F ( : 12.7) 1/4F ( : 6.35) RefrigerantPiping Drain hose Gas pipe Liquid pipe : 2-1/2~ : 3-1/8 ( : 65~ : 80) : 2-1/2~ : 3-1/8 ( : 65~ : 80) Through hole Sleeve (purchased locally) Center measurement hole : 3/32( : 2.5) 5/32(3.8) 2-1...

Page 10 - WIRING DIAGRAM

10 WIRING DIAGRAM 7 PKA-A12HA4 PKA-A18HA4 The black square ( ■ ) indicates a switch position. Notes: 1. SymboIs used in wiring diagram above are, : Connector, : Terminal (block).2. Indoor and outdoor connecting wires have poIarities, make sure to match terminal numbers (S1, S2, S3) for correct wirin...

Page 11 - REFRIGERANT SYSTEM DIAGRAM; Heat exchanger

11 REFRIGERANT SYSTEM DIAGRAM 8 Thermistor TH2 Pipe temperature(Liquid) Distributor with strainer (#50/#50) Thermistor TH5 (Cond./ Eva.temperature) Thermistor TH1 (Room temperature) Refrigerant flow in coolingRefrigerant flow in heating Strainer (#50) Strainer (#50) Heat exchanger Refrigerant GAS pi...

Page 12 - TROUBLESHOOTING

12 TROUBLESHOOTING 9 <Error code display by self-diagnosis and actions to be taken for service (summary)> Present and past error codes are logged and displayed on the wired remote controller or controller board of outdoor unit. Actions to be taken for service and the trouble reoccurrence at fi...

Page 13 - Malfunction-diagnosis method at maintenance service>; Display the error code on the self-check result display screen.; IR wireless remote controller

13 13 [Procedure] 1. Press the CHECK button twice. 2. Press the temperature buttons. 3. Point the remote controller at the sensor on the indoor unit andpress the HOUR button. 4. Point the remote controller at the sensor on the indoor unit andpress the ON/OFF button. ON/OFF TEMP FAN VANE MODE CHECK L...

Page 20 - -4. TROUBLESHOOTING BY INFERIOR PHENOMENA

20 Note: Refer to the manual of outdoor unit for the detail of remote controller. (1)Upward/downward vane performance failure The vane is not downward during defrosting and heatpreparation and when the thermostat is OFF in HEATmode. (Working of COOL protection function)Vane motor does not rotate. • ...

Page 22 - Normal; Thermistor R

22 9-6. HOW TO CHECK THE PARTS Parts name Check points Vane motor (MV) Measure the resistance between the terminals with a tester. (Coil temperature 77 " F ) Normal 350 ± 7% Abnormal - Brown-Red - Brown-Orange - Brown-Yellow - Brown-Green Open or short Fan motor (MF) Red Yellow Brown Orange Gree...

Page 23 - Wiring contact check; Sensor signal check

23 9-6-2. DC Fan motor (fan motor/indoor controller circuit board) Notes · High voltage is applied to the connecter (CNMF) for the fan motor. Pay attention to the service. · Do not pull out the connector (CNMF) for the motor with the power supply on. (It causes trouble of the indoor controller circu...

Page 24 - Indoor controller board; CNMF

24 9-7. TEST POINT DIAGRAM Indoor controller board PKA-A12HA4 PKA-A18HA4 { CN51 Centrally control 1 - 2 : Control signal 13VDC pulse input ( 1 : +) 3 - 4 : Operation indicator 13VDC ( 3 : +) 3 - 5 : Malfunction indicator 13VDC ( 3 : +) CN44 Pipe temperature thermistor 1 - 2 : Liquid (TH2) 3 - 4 : Co...

Page 25 - -8. FUNCTIONS OF DIP SWITCH AND JUMPER WIRE

25 SW1 Setting by the dip switch and jumper wire Functions Jumper wire Modelsettings Capacitysettings Pair numbersetting withIR wireless remotecontroller Remarks SW2 J41J42 Indoorcontrollerboard type setting JP3 012 3 ~ 9 Wireless remote controller setting Control PCB setting J41 J42 <Initial set...

Page 26 - SPECIAL FUNCTION; again the former request code No.; Outline of functions; Main unit; System constraint

26 10 SPECIAL FUNCTION Note:· When the uint is restarted to operate after turning off the power or OFF operation, the unit which was operating will start oper- ation. · To operate the main unit, refer to the 10-1-2. and set the request code No. which is not the same as the current one, and set again...

Page 27 - · This function is available only in cooling mode.; NOTE; Rotation setting

27 27 System constraint · This function is available only in cooling mode. Ex.) Set temp. by R/C = 20 : (68°F) Set point = 26 : (79°F) When request code number is “323”. 26 : 2nd unit Cut-in 4 degree C 22 : 2nd unit Cut-out 20 : 10-1-2. How to set rotation function (Back-up function, 2nd stage cut-i...

Page 28 - (2) Setting method of each function by wired remote controller; TEST

28 (2) Setting method of each function by wired remote controller B: Refrigerant addressC: Data display areaD: Request code display area TEST CHECK FILTER FILTER ON/OFF 1. Stop operation( ). 2. Press the button ( ) for 3 seconds so that [Maintenance mode] appears on the screen ( ). After a while, [0...

Page 29 - DISASSEMBLY PROCEDURE; Be careful when removing heavy parts.; Push; Corner hole; right side as shown in the figure 1.; PHOTOS & ILLUSTRATIONS

29 DISASSEMBLY PROCEDURE 11 Be careful when removing heavy parts. Push Push Down Be carefulnot to damage the airflow adjustmentplate with thescrew driver. Corner hole 1. REMOVING THE LOWER SIDE OF THE INDOOR UNIT FROM THE INSTALLATION PLATE (1) Remove the front panel.(2) Insert the screw driver to t...

Page 30 - PHOTOS

30 4. REMOVING THE ELECTRICAL BOX (1) Remove the front panel. (Refer to step 2)(2) Remove the electrical box covers. (See Photo 3) (3) Remove the nozzle assembly. (Refer to step 5)(4) Disconnect the connecting wire from terminal block (TB4) and terminal block for MA-remote controller (TB5). (5) Disc...

Page 32 - panel at right lower side.; REMOVING THE ROOM TEMPERATURE THERMISTOR

32 8. REMOVING THE LIQUID PIPE THERMISTOR AND COND/EVA TEMP. THERMISTOR (1) Remove the front panel. (Refer to step 2)(2) Remove the electrical box cover.(3) Remove the motor band.(4) Cut the wiring fixed band.(5) Remove the liquid pipe thermistor and cond/eva temp. ther- mistor. (6) Disconnect the c...

Page 36 - TM

HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN C Copyright 2010 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. Distributed in Nov. 2010 No.OCH483Made in Japan New publication, effective Nov. 2010Specifications subject to change without notice TM

Mitsubishi Mr.Slim PKA-A.HA4- User Manual

Table of Contents:

Summary

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