Table of Contents
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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SPLIT-TYPE, AIR CONDITIONERS
SERVICE MANUAL
Indoor unit
[Service Ref.]
[Model Name]
PCA-RP35KAQ
PCA-RP35KAQ
PCA-RP35KAQR2
PCA-RP50KAQ
PCA-RP50KAQ
PCA-RP50KAQR2
PCA-RP60KAQ
PCA-RP60KAQ
PCA-RP60KAQR2
PCA-RP71KAQ
PCA-RP71KAQ
PCA-RP71KAQR2
PCA-RP100KAQ
PCA-RP100KAQ
PCA-RP100KAQR2
PCA-RP125KAQ
PCA-RP125KAQ
PCA-RP125KAQR2
PCA-RP140KAQ
PCA-RP140KAQ
PCA-RP140KAQR2
INDOOR UNIT
ON/OFF
TEMP
WIRELESS REMOTE
CONTROLLER
(Option)
PCA-RP35KAQR2-ER
PCA-RP50KAQR1
PCA-RP50KAQR2-ER
PCA-RP60KAQR1
PCA-RP60KAQR2-ER
PCA-RP71KAQR1
PCA-RP71KAQR2-ER
PCA-RP100KAQR2-ER
PCA-RP125KAQR2-ER
PCA-RP140KAQR2-ER
Model name
indication
TEMP.
ON/OFF
WIRED REMOTE
CONTROLLER
(Option)
Revision:
•
• Some descriptions have been
• Please void OCH491
Notes:
• This manual describes service
• RoHS compliant products
CONTENTS
1. TECHNICAL CHANGES .................................. 2
2. REFERENCE MANUAL ................................... 3
3. SAFETY PRECAUTION ................................... 4
4. PARTS NAMES AND FUNCTIONS ................. 5
5. SPECIFICATIONS ........................................... 10
6. NOISE CRITERION CURVES ....................... 14
7. OUTLINES AND DIMENSIONS ..................... 16
8. WIRING DIAGRAM ............................................. 20
9. REFRIGERANT SYSTEM DIAGRAM ............. 21
10. TROUBLESHOOTING ................................... 22
11. SPECIAL FUNCTION ..................................... 38
12. DISASSEMBLY PROCEDURE ....................... 42
PARTS CATALOG (OCB491)
July 2014
No. OCH491
REVISED EDITION-D
Added
PCA-RP35KAQR2,
PCA-RP35KAQR2-ER,
PCA-RP50KAQR2,
PCA-RP50KAQR2-ER
PCA-RP60KAQR2,
PCA-RP60KAQR2-ER,
PCA-RP71KAQR2,
PCA-RP71KAQR2-ER,
PCA-RP100KAQR2,
PCA-RP100KAQR2-ER,
PCA-RP125KAQR2,
PCA-RP125KAQR2-ER,
PCA-RP140KAQR2 and
PCA-RP140KAQR2-ER in
REVISED EDITION-D.
modified.
REVISED EDITION-C.
data of the indoor units only.
have <G> mark on the spec
name plate.
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Table of Contents
Troubleshooting
Related Manuals for Mitsubishi PCA-RP35KAQ
Summary of Contents for Mitsubishi PCA-RP35KAQ
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Page 1: Service Manual
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS SPLIT-TYPE, AIR CONDITIONERS July 2014 No. OCH491 REVISED EDITION-D SERVICE MANUAL Revision: Added • Indoor unit PCA-RP35KAQR2, PCA-RP35KAQR2-ER, [Service Ref.] [Model Name] PCA-RP50KAQR2, PCA-RP35KAQ PCA-RP35KAQ PCA-RP50KAQR2-ER PCA-RP60KAQR2, PCA-RP35KAQR2-ER PCA-RP35KAQR2 PCA-RP60KAQR2-ER, PCA-RP50KAQR1 PCA-RP71KAQR2, PCA-RP50KAQ PCA-RP50KAQ PCA-RP71KAQR2-ER, PCA-RP50KAQR2-ER PCA-RP50KAQR2 PCA-RP100KAQR2,... -
Page 2: Technical Changes
TECHNICAL CHANGES Service ref. have been changed as follows. PCA-RP35KAQ PCA-RP35KAQR2(-ER) PCA-RP50KAQR1 PCA-RP50KAQR2(-ER) PCA-RP60KAQR1 PCA-RP60KAQR2(-ER) PCA-RP71KAQR1 PCA-RP71KAQR2(-ER) PCA-RP100KAQ PCA-RP100KAQR2(-ER) PCA-RP125KAQ PCA-RP125KAQR2(-ER) PCA-RP140KAQ PCA-RP140KAQR2(-ER) • S/W (for dual set temperature) has been changed. PCA-RP50KAQ PCA-RP50KAQR1 PCA-RP60KAQ PCA-RP60KAQR1 PCA-RP71KAQ PCA-RP71KAQR1 • INDOOR CONTROLLER BOARD (I.B.) has been changed. -
Page 3: Reference Manual
REFERENCE MANUAL 2-1. OUTDOOR UNIT’S SERVICE MANUAL Model Name Service Ref. Service Manual No. PUHZ-RP50/60/71VHA4 PUHZ-RP50/60/71VHA4 PUHZ-RP100/125/140VKA PUHZ-RP100/125/140VKA OCH451 PUHZ-RP100/125/140/200/250YKA PUHZ-RP100/125/140/200/250YKA OCB451 PUHZ-RP200YKA PUHZ-RP200YKAR1 PUHZ-ZRP35/50VKA PUHZ-ZRP35/50VKAR1(-ER) PUHZ-ZRP60/71VHA PUHZ-ZRP60/71VHAR1(-ER) OCH527 PUHZ-ZRP100/125/140VKA PUHZ-ZRP100/125/140VKA OCB527 PUHZ-ZRP100/125/140YKA PUHZ-ZRP100/125/140YKA PU(H)-P71/100VHA PU(H)-P71/100VHAR3.UK OC379 PU(H)-P71/100/125/140YHA PU(H)-P71/100/125/140YHAR3.UK PUHZ-P100/125/140VHA3 PUHZ-P100/125/140VHA3R2.UK PUHZ-P100/125/140YHA PUHZ-P100/125/140YHAR1.UK... -
Page 4: Safety Precaution
SAFETY PRECAUTION 3-1. ALWAYS OBSERVE FOR SAFETY Before obtaining access to terminal, all supply circuits must be disconnected. 3-2. 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 5: 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 6: Clock Button
4-2. WIRELESS REMOTE CONTROLLER (OPTION) The functions which can be used are restricted according to each model. 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. -
Page 7: Basic Mode
4-3. WIRED REMOTE CONTROLLER (OPTION) <PAR-30MAA><PAR-31MAA> The functions which can be used are restricted according to each model. The main display can be displayed in two different modes: "Full" and "Basic." Display The initial setting is "Full." 1 Operation mode Indoor unit operation mode appears here. - Page 8 Main menu list Setting and display items Setting details Vane · Louver · Vent. Use to set the vane angle. • Select a desired vane setting from five different settings. (Lossnay) Use to turn ON / OFF the louver. • Select a desired setting from "ON" and "OFF." Use to set the amount of ventilation.
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Page 9: Operation Section
4-4. WIRED REMOTE CONTROLLER (OPTION) <PAR-21MAA> The functions which can be used are restricted according to each model. “Sensor” indication Display Section Day-of-Week Displays when the remote controller sensor is used. Shows the current day of the week. For the purposes of explanation, all parts of the display are shown. -
Page 10: Specifications
SPECIFICATIONS 5-1. SPECIFICATIONS PCA-RP35KAQ Service Ref. PCA-RP35KAQR2 PCA-RP35KAQR2-ER Cooling Mode Heating Single phase, 50Hz, 230V Power supply (phase, cycle, voltage) 0.04 0.04 Input 0.29 0.27 Running current Munsell 6.4Y 8.9/0.4 External finish Plate fin coil Heat exchanger Sirocco fan (direct) x 2 Fan (drive) ×... - Page 11 PCA-RP71KAQ Service Ref. PCA-RP71KAQR1 PCA-RP71KAQR2 PCA-RP71KAQR2-ER Mode Cooling Heating Power supply (phase, cycle, voltage) Single phase, 50Hz, 230V Input 0.06 0.06 Running current 0.42 0.42 External finish Munsell 6.4Y 8.9/0.4 Heat exchanger Plate fin coil Fan (drive) × No. Sirocco fan (direct) x 3 Fan motor output 0.095 Airflow (Low-Medium2-Medium1-High)
- Page 12 PCA-RP140KAQ Service Ref. PCA-RP140KAQR2 PCA-RP140KAQR2-ER Mode Cooling Heating Power supply (phase, cycle, voltage) Single phase, 50Hz, 230V Input 0.14 0.14 Running current 0.90 0.90 External finish Munsell 6.4Y 8.9/0.4 Heat exchanger Plate fin coil Fan (drive) × No. Sirocco fan (direct) × 4 Fan motor output 0.160 Airflow (Low-Medium2-Medium1-High)
- Page 13 5-2. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS ■ PCA-RP60/71KAQ PCA-RP35/50KAQ ■ PCA-RP60/71KAQR1 PCA-RP50KAQR1 PCA-RP60/71KAQR2 PCA-RP35/50KAQR2 PCA-RP60/71KAQR2-ER PCA-RP35/50KAQR2-ER -100 -100 -150 -150 -200 -200 -250 -250 -300 -300 Airflow rate[m³/min] Airflow rate[m³/min] How to read curves Duct characteristics ■ PCA-RP100/125/140KAQ Curve in the at site...
- Page 14 NOISE CRITERION CURVES PCA-RP35KAQ PCA-RP50KAQ SPL(dB) LINE NOTCH SPL(dB) LINE NOTCH High PCA-RP35KAQR2 High PCA-RP50KAQR1 Medium1 Medium1 PCA-RP35KAQR2-ER PCA-RP50KAQR2 Medium2 Medium2 PCA-RP50KAQR2-ER NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 APPROXIMATE APPROXIMATE THRESHOLD OF THRESHOLD OF HEARING FOR...
- Page 15 PCA-RP100KAQ PCA-RP125KAQ NOTCH SPL(dB) LINE NOTCH SPL(dB) LINE High High PCA-RP100KAQR2 PCA-RP125KAQR2 Medium1 Medium1 PCA-RP100KAQR2-ER PCA-RP125KAQR2-ER Medium2 Medium2 NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 APPROXIMATE APPROXIMATE THRESHOLD OF THRESHOLD OF HEARING FOR HEARING FOR NC-20 NC-20 CONTINUOUS CONTINUOUS NOISE...
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Page 16: Outlines And Dimensions
OUTLINES AND DIMENSIONS PCA-RP35KAQ Unit: mm PCA-RP35KAQR2 PCA-RP35KAQR2-ER PCA-RP50KAQ PCA-RP50KAQR1 PCA-RP50KAQR2 PCA-RP50KAQR2-ER OCH491D... - Page 17 PCA-RP60KAQ Unit: mm PCA-RP60KAQR1 PCA-RP60KAQR2 PCA-RP60KAQR2-ER PCA-RP71KAQ PCA-RP71KAQR1 PCA-RP71KAQR2 PCA-RP71KAQR2-ER OCH491D...
- Page 18 PCA-RP100KAQ Unit: mm PCA-RP100KAQR2 PCA-RP100KAQR2-ER PCA-RP125KAQ PCA-RP125KAQR2 PCA-RP125KAQR2-ER PCA-RP140KAQ PCA-RP140KAQR2 PCA-RP140AQR2-ER OCH491D...
- Page 19 Unit: mm WIRED REMOTE CONTROLLER (Option) 19.5 PAR-21MAA PAR-30MAA PAR-31MAA OCH491D...
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Page 20: Wiring Diagram
WIRING DIAGRAM PCA-RP35KAQ PCA-RP50KAQ PCA-RP60KAQ PCA-RP71KAQ PCA-RP35KAQR2 PCA-RP50KAQR1 PCA-RP60KAQR1 PCA-RP71KAQR1 PCA-RP35KAQR2-ER PCA-RP50KAQR2 PCA-RP60KAQR2 PCA-RP71KAQR2 PCA-RP50KAQR2-ER PCA-RP60KAQR2-ER PCA-RP71KAQR2-ER PCA-RP100KAQ PCA-RP125KAQ PCA-RP140KAQ PCA-RP100KAQR2 PCA-RP125KAQR2 PCA-RP140KAQR2 PCA-RP100KAQR2-ER PCA-RP125KAQR2-ER PCA-RP140KAQR2-ER [LEGEND] The black square(■)indicates a switch SYMBOL NAME SYMBOL NAME position. INDOOR CONTROLLER BOARD... -
Page 21: Refrigerant System Diagram
REFRIGERANT SYSTEM DIAGRAM PCA-RP35KAQ PCA-RP50KAQ PCA-RP60KAQ PCA-RP71KAQ PCA-RP35KAQR2 PCA-RP50KAQR1 PCA-RP60KAQR1 PCA-RP71KAQR1 PCA-RP35KAQR2-ER PCA-RP50KAQR2 PCA-RP60KAQR2 PCA-RP71KAQR2 PCA-RP50KAQR2-ER PCA-RP60KAQR2-ER PCA-RP71KAQR2-ER PCA-RP100KAQ PCA-RP125KAQ PCA-RP140KAQ PCA-RP100KAQR2 PCA-RP125KAQR2 PCA-RP140KAQR2 PCA-RP100KAQR2-ER PCA-RP125KAQR2-ER PCA-RP140KAQR2-ER Strainer Heat exchanger Refrigerant GAS pipe connection (Flare) Condenser/evaporator temperature thermistor (TH5) Refrigerant flow in cooling... -
Page 22: Troubleshooting
TROUBLESHOOTING 10-1. 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 23 10-2. 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> ■...
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Page 24: Continuous
• 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 25 ● 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 •For about 2 minutes following power-on,op- After LED 1, 2 are lighted, LED 2 is PLEASE WAIT turned off, then only LED 1 is...
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Page 26: Continuous
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 10-3. SELF-DIAGNOSIS ACTION TABLE refer to the outdoor unit's service manual for the details. Abnormal point and detection method Countermeasure Check code... - Page 27 Abnormal point and detection method Countermeasure Check code Cause Freezing/overheating protection is (Cooling or drying mode) (Cooling or drying mode) operating Clogged filter (reduced airflow) Check clogs of the filter. Freezing protection (Cooling mode) Short cycle of air path Remove blockage. The unit is in 6-minute resume Low-load (low temperature) prevention mode if pipe <liquid or...
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Page 28: Continuous
Abnormal point and detection method Countermeasure Check code Cause Pipe temperature thermistor/ Defective thermistor – Check resistance value of thermistor. Condenser-Evaporator (TH5) characteristics For characteristics, refer to (P1) above. Check contact failure of connector (CN44) The unit is in 3-minute resume protection Contact failure of connector on the indoor controller board. -
Page 29: Continuous
Abnormal point and detection method Countermeasure Check code Cause Indoor/outdoor unit communication Note: Contact failure, short circuit or, Check LED display on the outdoor control error (Signal receiving error) miswiring (converse wiring) of circuit board. (Connect A-control service Abnormal if indoor controller board indoor/outdoor unit connecting tool, PAC-SK52ST.) Refer to outdoor unit ser- cannot receive any signal normally for... - Page 30 Abnormal point and detection method Countermeasure Check code Cause Abnormal refrigerant circuit When this error occurs, be sure to replace Abnormal operation of 4-way During Cooling, Dry, or Auto Cooling the 4-way valve. valve operation, the following conditions are Check refrigerant pipes for disconnection or Disconnection of or leakage in regarded as failures when detected for 1 leakage.
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Page 31: Troubleshooting Of Problems
10-4. TROUBLESHOOTING OF PROBLEMS 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. Power supply of rated voltage is not supplied to out- Check the voltage of outdoor power door unit. - Page 32 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 33: Continuous
10-5. EMERGENCY OPERATION 10-5-1. When wireless remote controller fails or its battery is exhausted When the remote controller cannot be used When the batteries of the remote controller run out or the remote control- ler malfunctions, the emergency operation can be done using the emer- gency buttons on the grille. - Page 34 10-6. HOW TO CHECK THE PARTS PCA-RP35KAQ PCA-RP50KAQ PCA-RP60KAQ PCA-RP71KAQ PCA-RP35KAQR2 PCA-RP50KAQR1 PCA-RP60KAQR1 PCA-RP71KAQR1 PCA-RP35KAQR2-ER PCA-RP50KAQR2 PCA-RP60KAQR2 PCA-RP71KAQR2 PCA-RP50KAQR2-ER PCA-RP60KAQR2-ER PCA-RP71KAQR2-ER PCA-RP100KAQ PCA-RP125KAQ PCA-RP140KAQ PCA-RP100KAQR2 PCA-RP125KAQR2 PCA-RP140KAQR2 PCA-RP100KAQR2-ER PCA-RP125KAQR2-ER PCA-RP140KAQR2-ER Parts name Check points Room temperature Disconnect the connector then measure the resistance with a tester.
- Page 35 10-6-2. 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 36 10-7. TEST POINT DIAGRAM Indoor controller board PCA-RP35KAQ PCA-RP50KAQ PCA-RP60KAQ PCA-RP71KAQ PCA-RP35KAQR2 PCA-RP50KAQR1 PCA-RP60KAQR1 PCA-RP71KAQR1 PCA-RP35KAQR2-ER PCA-RP50KAQR2 PCA-RP60KAQR2 PCA-RP71KAQR2 PCA-RP50KAQR2-ER PCA-RP60KAQR2-ER PCA-RP71KAQR2-ER PCA-RP100KAQ PCA-RP125KAQ PCA-RP140KAQ PCA-RP100KAQR2 PCA-RP125KAQR2 PCA-RP140KAQR2 PCA-RP100KAQR2-ER PCA-RP125KAQR2-ER PCA-RP140KAQR2-ER CN2L Emergency operation Connector (LOSSNAY) LED3 Transmission (Indoor/outdoor) Vane motor output (MV)
- Page 37 Service board MODEL Model 1 2 3 4 5 settings PCA-RP•KAQ Service board MODEL 1 2 3 4 5 PCA-RP35KAQ 1 2 3 4 5 PCA-RP50KAQ 1 2 3 4 5 PCA-RP60KAQ Capacity settings 1 2 3 4 5 PCA-RP71KAQ...
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Page 38: Special Function
SPECIAL FUNCTION 11-1. ROTATION FUNCTION (AND BACK-UP FUNCTION, 2ND STAGE CUT-IN FUNCTION) Note that this function is not available for SUZ model. 11-1-1. 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 39 • System constraint · This function is available only in cooling mode. [2nd stage cut-in function]··· Request code number "322~324" Ex.) Set temp. by R/C = 20˚C Set point = 26˚C Room temp. ] Set point Room temp. < Set point -4: When request code number is “323”.
- Page 40 (2) Setting method of each function by wired remote controller ■ PAR-30MAA/PAR-31MAA Stop operation ( Check menu Error history Refrigerant volume check Refrigerant leak check Smooth maintenance Select "Service" from the Main menu, and press the button. Request code Service menu: Cursor Select "Check"...
- Page 41 (3) Rotation and back up operation PAR-30MAA/PAR-31MAA Press the button. Main Main menu Maintenance Initial setting Select "Service" with the [Cursor] buttons ( ) or the [Page] buttons ( Service ), and press the button. Main display: Cursor Page Enter the current maintenance password (4 numerical digits). Service menu •...
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Page 42: Disassembly Procedure
DISASSEMBLY PROCEDURE PCA-RP35KAQ PCA-RP50KAQ PCA-RP60KAQ PCA-RP71KAQ PCA-RP35KAQR2 PCA-RP50KAQR1 PCA-RP60KAQR1 PCA-RP71KAQR1 PCA-RP35KAQR2-ER PCA-RP50KAQR2 PCA-RP60KAQR2 PCA-RP71KAQR2 PCA-RP50KAQR2-ER PCA-RP60KAQR2-ER PCA-RP71KAQR2-ER PCA-RP100KAQ PCA-RP125KAQ PCA-RP140KAQ PCA-RP100KAQR2 PCA-RP125KAQR2 PCA-RP140KAQR2 PCA-RP100KAQR2-ER PCA-RP125KAQR2-ER PCA-RP140KAQR2-ER Be careful when removing heavy parts. (Photo: PCA-RP125KAQ) PHOTOS & ILLUSTRATIONS OPERATING PROCEDURE 1. Removing the air intake grille (1) Slide the air intake grille holding knobs (at 2 or 3 loca- tions) to the rear to open the air intake grille. - Page 43 OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS 3. Removing the room temperature thermistor (TH1) Photo 4 (1) Remove the air intake grille. (See Figure 1, 2) Casing (2) Remove the beam by removing screws. (See Photo 1) (3) Remove 2 screws from the electrical cover, and remove the electrical cover.
- Page 44 OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS 5. Removing the fan (3 connection) Photo 9 Fan guard Beam (1) Remove the air intake grille. (See Figure 1, 2) (2) Remove the beam by removing screws. (See Photo 1) (3) Remove 2 screws from the electrical cover, and remove the electrical cover.
- Page 45 OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS Photo 13 7. Removing the vane motor (1) Remove the air intake. (See Figure 1, 2) Connector (2) Remove the right side panel. (See Figure 3, 4) Vane motor and cover (3) Remove the connector of vane motor. (4) Remove 2 screws of vane motor cover , then remove vane motor.
- Page 46 OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS 10. Removing the pipe temperature thermistors/liquid (TH2) Photo 18 and condenser/evaporator temperature themistor (TH5). (1) Remove the air intake grille. (See Figure 1, 2) (2) Remove the left and right side panels. (See Figure 3,4) (3) Remove the under panel.
- Page 47 OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS Photo 22 13. Removing the heat exchanger (1) Remove the air intake grille. (See Figure 1, 2) (2) Remove the beam. (See Photo 1) (3) Remove the electrical cover. (See Photo 1) (4) Pull the electrical box downward. (See Photo 2) (5) Remove the left and right side panels.
- Page 48 HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN Copyright 2010 MITSUBISHI ELECTRIC CORPORATION Distributed in Jul. 2014 No.OCH491 REVISED EDITION-D Distributed in Aug. 2013 No.OCH491 REVISED EDITION-C Distributed in Oct. 2012 No.OCH491 REVISED EDITION-B New publication, effective Jul. 2014 Distributed in Feb.