Table of Contents
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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SPLIT-TYPE, AIR CONDITIONERS
SERVICE MANUAL
Indoor unit
[Model Name]
PKA-RP60KAL
PKA-RP71KAL
PKA-RP100KAL
INDOOR UNIT
WIRELESS REMOTE
CONTROLLER
[Service Ref.]
PKA-RP60KAL.TH
PKA-RP60KAL.TH-ER
PKA-RP60KALR1.TH
PKA-RP60KALR1.TH-ER
PKA-RP71KAL.TH
PKA-RP71KAL.TH-ER
PKA-RP71KALR1.TH
PKA-RP71KALR1.TH-ER
PKA-RP100KAL.TH
PKA-RP100KAL.TH-ER
PKA-RP100KALR1.TH
PKA-RP100KALR1.TH-ER
ON/OFF
TEMP
Revision:
• Added
PKA-RP60KAL.TH-ER,
PKA-RP60KALR1.TH,
PKA-RP60KALR1.TH-ER,
PKA-RP71KAL.TH-ER,
PKA-RP71KALR1.TH,
PKA-RP71KALR1.TH-ER,
PKA-RP100KAL.TH-ER,
PKA-RP100KALR1.TH and
PKA-RP100KALR1.TH-ER in
REVISED EDITION-B.
• Some descriptions have been
modified.
• Please void OCH452
REVISED EDITION-A.
Note:
• This manual describes only
service data of the indoor units.
• RoHS compliant products
have <G> mark on the spec
name plate.
CONTENTS
1. REFERENCE MANUAL ................................... 2
2. SAFETY PRECAUTION ................................... 3
3. PARTS NAMES AND FUNCTIONS ................. 4
4. SPECIFICATIONS ............................................ 6
5. NOISE CRITERION CURVES .......................... 7
6. OUTLINES AND DIMENSIONS ....................... 8
7. WIRING DIAGRAM .......................................... 9
8. REFRIGERANT SYSTEM DIAGRAM ............ 10
9. TROUBLESHOOTING .................................... 11
10. SPECIAL FUNCTION ..................................... 27
11. DISASSEMBLY PROCEDURE ....................... 30
PARTS CATALOG (OCB452)
July 2014
No. OCH452
REVISED EDITION-B
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Table of Contents
Related Manuals for Mitsubishi PKA-RP60KAL.TH
Summary of Contents for Mitsubishi PKA-RP60KAL.TH
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Page 1: Table Of Contents
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS SPLIT-TYPE, AIR CONDITIONERS July 2014 No. OCH452 REVISED EDITION-B SERVICE MANUAL Revision: • Added Indoor unit PKA-RP60KAL.TH-ER, [Model Name] [Service Ref.] PKA-RP60KALR1.TH, PKA-RP60KALR1.TH-ER, PKA-RP60KAL.TH PKA-RP60KAL PKA-RP71KAL.TH-ER, PKA-RP60KAL.TH-ER PKA-RP71KALR1.TH, PKA-RP71KALR1.TH-ER, PKA-RP60KALR1.TH PKA-RP100KAL.TH-ER, PKA-RP60KALR1.TH-ER PKA-RP100KALR1.TH and PKA-RP100KALR1.TH-ER in PKA-RP71KAL.TH... -
Page 2: Reference Manual
TECHNICAL CHANGES Service ref. have been changed as follows. PKA-RP60KAL PKA-RP60KALR1 PKA-RP71KAL PKA-RP71KALR1 PKA-RP100KAL PKA-RP100KALR1 • S/W (for dual set temperature) has been changed. REFERENCE MANUAL OUTDOOR UNIT’S SERVICE MANUAL Service Manual No. Mdel Name Service Ref. PUHZ-RP35/50/60/71VHA4 PUHZ-RP35/50/60/71VHA4 OCH451 PUHZ-RP100/125/140VKA PUHZ-RP100/125/140VKA OCB451... -
Page 3: Safety Precaution
SAFETY PRECAUTION 2-1. ALWAYS OBSERVE FOR SAFETY Before obtaining access to terminal, all supply circuits must be disconnected. 2-2. CAUTIONS RELATED TO NEW REFRIGERANT Cautions for units utilising refrigerant R410A Use a vacuum pump with a reverse flow check Use new refrigerant pipes. valve. -
Page 4: Parts Names And Functions
[1] Cautions for service (1) Perform service after recovering the refrigerant left in unit completely. (2) Do not release refrigerant in the air. (3) After completing service, charge the cycle with specified amount of refrigerant. (4) When performing service, install a filter drier simultaneously. Be sure to use a filter drier for new refrigerant. -
Page 5: Wireless Remote Controller
3-2. Wireless remote controller CHECK TEST RUN display CHECK and TEST RUN display indicate that the unit is being checked or test-run. MODEL SELECT display Blinks when model is selected. display Lights up while the signal is transmitted to the indoor unit when the button is pressed. display SET TEMP. -
Page 6: Specifications
SPECIFICATIONS Service Ref. PKA-RP60KAL.TH PKA-RP60KAL.TH-ER PKA-RP60KALR1.TH PKA-RP60KALR1.TH-ER Mode Cooling Heating Power supply (phase, cycle, voltage) Single phase, 50Hz, 230V Input 0.06 0.05 Running current 0.43 0.36 External finish (Panel) Munsell 1.0Y 9.2/0.2 Heat exchanger Plate fin coil Fan (drive) o No. -
Page 7: Noise Criterion Curves
NOISE CRITERION CURVES 5-1. SOUND LEVELS Sound level at anechoic room : Low-Middle-High Models Sound level dB (A) 39 - 42 - 45 PKA-RP60/71KAL 41 - 45 - 49 PKA-RP100KAL 1.0m Measurement location * Measured in anechoic room. 5-2. NOISE CRITERION CURVES PKA-RP60/71KAL.TH(-ER) PKA-RP100KAL.TH(-ER) PKA-RP100KALR1.TH(-ER) -
Page 8: Outlines And Dimensions
OUTLINES AND DIMENSIONS PKA-RP60KAL.TH PKA-RP71KAL.TH PKA-RP100KAL.TH PKA-RP60KAL.TH-ER PKA-RP71KAL.TH-ER PKA-RP100KAL.TH-ER PKA-RP60KALR1.TH PKA-RP71KALR1.TH PKA-RP100KALR1.TH PKA-RP60KALR1.TH-ER PKA-RP71KALR1.TH-ER PKA-RP100KALR1.TH-ER Unit: mm Top side 423.7 431.7 Right side Left side Front side Mount board Knockout hole for left piping (855) Operation lamp 1170 Knockout hole for... -
Page 9: Wiring Diagram
WIRING DIAGRAM PKA-RP60KAL.TH PKA-RP71KAL.TH PKA-RP100KAL.TH PKA-RP60KAL.TH-ER PKA-RP71KAL.TH-ER PKA-RP100KAL.TH-ER PKA-RP60KALR1.TH PKA-RP71KALR1.TH PKA-RP100KALR1.TH PKA-RP60KALR1.TH-ER PKA-RP71KALR1.TH-ER PKA-RP100KALR1.TH-ER [LEGEND] SYMBOL NAME SYMBOL NAME Indoor controller board Vane motor CN2L Connector (LOSSNAY) Fan motor CN32 Connector (Remote switch) Switch board CN41 Connector (HA terminal-A) SWE2... -
Page 10: Refrigerant System Diagram
REFRIGERANT SYSTEM DIAGRAM PKA-RP60KAL.TH PKA-RP71KAL.TH PKA-RP100KAL.TH PKA-RP60KAL.TH-ER PKA-RP71KAL.TH-ER PKA-RP100KAL.TH-ER PKA-RP60KALR1.TH PKA-RP71KALR1.TH PKA-RP100KALR1.TH PKA-RP60KALR1.TH-ER PKA-RP71KALR1.TH-ER PKA-RP100KALR1.TH-ER Strainer (#50) Heat exchanger Refrigerant GAS pipe connection (Flare) Thermistor TH2 Refrigerant flow in cooling (Pipe temperature/ liquid) Refrigerant flow in heating Thermistor TH5 (Cond./ Eva. temperature) -
Page 11: Troubleshooting
TROUBLESHOOTING 9-1. TROUBLESHOOTING <Check code displayed by self-diagnosis and actions to be taken for service (summary)> Present and past check codes are logged, and they can be displayed on the wired remote controller or controller board of out- door unit. Actions to be taken for service, which depends on whether or not the trouble is reoccurring in the field, are summa- rized in the table below. - Page 12 9-2. MALFUNCTION-DIAGNOSIS METHOD BY REMOTE CONTROLLER <In case of trouble during operation> When a malfunction occurs to air conditioner, both indoor unit and outdoor unit will stop and operation lamp blinks to inform unusual stop. < Malfunction-diagnosis method at maintenance service> [Procedure] 1.
- Page 13 • Refer to the following tables for details on the check codes. [Output pattern A] Beeper sounds Beep Beep Beep Beep Beep Beep Beep OPERATION · · · Repeated INDICATOR lamp flash pattern Approx. 2.5 sec. 0.5 sec. 0.5 sec. 0.5 sec.
- Page 14 • If the unit cannot be operated properly after test run, refer to the following table to find the cause. Symptom Cause Wired remote controller LED 1, 2 (PCB in outdoor unit) •For about 2 minutes following power-on,op- For about 2 After LED 1, 2 are lighted, LED 2 is PLEASE WAIT minutes after...
- Page 15 Note: Errors to be detected in outdoor unit, such as codes starting with F, U or E (excluding E0 to E7), are not covered in this document. Please refer to the out- 9-3. SELF-DIAGNOSIS ACTION TABLE door unit's service manual for the details. Abnormal point and detection method Countermeasure Check code...
- Page 16 Abnormal point and detection method Countermeasure Check code Cause Freezing/overheating protection is oper- (Cooling or drying mode) (Cooling or drying mode) ating 1 Clogged filter (reduced airflow) 1 Check clogs of the filter. 1 Freezing protection (Cooling mode) 2 Short cycle of air path 2 Remove shields.
- Page 17 Abnormal point and detection method Countermeasure Check code Cause Pipe temperature thermistor / 1–3 Check resistance value of thermistor. Condenser-Evaporator (TH5) 1 Defective thermistor For characteristics, refer to (P1) above. 1 The unit is in 3-minute resume protec- characteristics 2 Check contact failure of connector (CN44) on the indoor controller board.
- Page 18 Abnormal point and detection method Countermeasure Check code Cause Remote controller transmission error(E3)/ 1 Set a remote controller to main, and the signal receiving error(E5) 1 2 remote controllers are set as other to sub. “main.” 1 Abnormal if remote controller could not find blank of transmission path for 6 (In case of 2 remote controllers) seconds and could not transmit.
- Page 19 Abnormal point and detection method Countermeasure Check code Cause Forced compressor stop 1 Drain pump trouble 1 Check the drain pump. (due to water leakage abnormality) 1 The unit has a water leakage abnor- 2 Drain defective 2 Check whether water can be drained. mality when the following conditions, a) ·...
- Page 20 9-4. TROUBLESHOOTING BY INFERIOR PHENOMENA Note: Refer to the outdoor unit's service manual for the detail of remote controller. Phenomena Cause Countermeasure (1) LED2 on indoor controller board • When LED1 on indoor controller board is also off. is off. 1 Power supply of rated voltage is not supplied to out- 1 Check the voltage of outdoor power supply terminal block (L, N) or (L...
- Page 21 Note: Refer to the outdoor unit's service manual for the detail of remote controller. Phenomena Cause Countermeasure (2) LED2 on indoor controller board • When LED1 on indoor controller board is also blinking. Check indoor/outdoor unit connecting wire is blinking. Connection failure of indoor/outdoor unit connecting for connection failure.
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Page 22: Emergency Operation
9-5. EMERGENCY OPERATION 9-5-1. When wireless remote controller troubles or its battery is exhausted When the remote controller cannot be used When the batteries of the remote controller run out or the remote controller malfunctions, the emergency operation can be done using the emergency buttons. - Page 23 9-6. HOW TO CHECK THE PARTS PKA-RP60KAL.TH PKA-RP71KAL.TH PKA-RP100KAL.TH PKA-RP60KAL.TH-ER PKA-RP71KAL.TH-ER PKA-RP100KAL.TH-ER PKA-RP60KALR1.TH PKA-RP71KALR1.TH PKA-RP100KALR1.TH PKA-RP60KALR1.TH-ER PKA-RP71KALR1.TH-ER PKA-RP100KALR1.TH-ER Parts name Check points Room temperature Disconnect the connector then measure the resistance using a tester. thermistor (TH1) (At the ambient temperature 10 to 30:)
- Page 24 9-6-2. DC Fan motor (fan motor/indoor controller circuit board) Check method of 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. board and fan motor.) (It causes trouble of the indoor controller circuit Self check...
- Page 25 9-7. TEST POINT DIAGRAM PKA-RP60KAL.TH PKA-RP71KAL.TH PKA-RP100KAL.TH PKA-RP60KAL.TH-ER PKA-RP71KAL.TH-ER PKA-RP100KAL.TH-ER PKA-RP60KALR1.TH PKA-RP71KALR1.TH PKA-RP100KALR1.TH PKA-RP60KALR1.TH-ER PKA-RP71KALR1.TH-ER PKA-RP100KALR1.TH-ER CNMF Connect to the fan motor (MF) 1–3: 310–340 V DC 4–3: 15 V DC 5–3: 0–6.5 V DC 6–3: 0 or 15 V DC...
- Page 26 9-8. FUNCTIONS OF DIP SWITCH AND JUMPER WIRE Each function is controlled by the DIP switch and the jumper wire on the indoor controller board. (Marks in the table below) Jumper wire ( : Short : Open) Jumper wire Setting by the DIP switch and jumper wire Remarks Functions MODELS...
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Page 27: Special Function
SPECIAL FUNCTION 10-1. ROTATION FUNCTION (AND BACK-UP FUNCTION, 2ND STAGE CUT-IN FUNCTION) Optional wired remote controller with terminal bed (PAR-21MAAT-E) is necessary for PKA type. 10-1-1. Operation (1) Rotation function (and Back-up function) • Outline of functions · Main and sub unit operate alternately according to the interval of rotation setting. Main and sub unit should be set by refrigerant address. - Page 28 • System constraint · This function is available only in cooling mode. Ex.) Set temp. by R/C = 20: [2nd stage cut-in function]··· Request code number "322~324" Set point = 26: Room temp. ] Set point Room temp. < Set point −4: When request code number is “323”.
- Page 29 (2) Setting method of each function by wired remote controller B: Refrigerant address C: Data display area D: Request code display area 1. Stop operation(1). 2. Press the button (2) for 3 seconds so that [Maintenance mode] appears on the screen (A). TEST After a while, [00] appears in the refrigerant address number display area.(at B ) 3.
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Page 30: Disassembly Procedure
DISASSEMBLY PROCEDURE PKA-RP60KAL.TH PKA-RP71KAL.TH PKA-RP100KAL.TH PKA-RP60KAL.TH-ER PKA-RP71KAL.TH-ER PKA-RP100KAL.TH-ER PKA-RP60KALR1.TH PKA-RP71KALR1.TH PKA-RP100KALR1.TH PKA-RP60KALR1.TH-ER PKA-RP71KALR1.TH-ER PKA-RP100KALR1.TH-ER Be careful when removing heavy parts. OPERATION PROCEDURE PHOTOS & ILLUSTRATIONS 1. Removing the panel Photo 1 Front grille Screws (1) Press and unlock the knobs on both sides of the front grille and lift the front grille until it is level. -
Page 31: Operation Procedure
OPERATION PROCEDURE PHOTOS 3. Removing the electrical box Connector for Photo 4 ground wire (1) Remove the panel and the corner box. (Refer to 1.) Fixture (2) Remove the front and side electrical box covers (each 1 screw). (3) Remove the indoor / outdoor connecting wire from termi- Terminal block nal block (TB4). - Page 32 OPERATION PROCEDURE PHOTOS 6. Removing the indoor fan motor and the line flow fan Photo 7 Screw of the motor band (1) Remove the panel and the corner box. (Refer to 1.) (2) Remove the electrical box (Refer to 2.) and the nozzle Lead wire of pipe ther- mistor assembly (Refer to 3.).
- Page 33 OPERATION PROCEDURE PHOTOS 8. Removing the heat exchanger Photo 11 (1) Remove the panel and the corner box. (Refer to 1.) Heat exchanger Water cut (2) Remove the electrical box (Refer to 3.) and the nozzle assembly (Refer to 4.). (3) Remove the water cut.
- Page 34 HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN Copyright 2009 MITSUBISHI ELECTRIC CORPORATION Distributed in Jul. 2014 No.OCH452 REVISED EDITION-B New publication, effective Jul. 2014 Distributed in May 2011 No.OCH452 REVISED EDITION-A Specifications are subject to change without notice.