SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS May 2013 SERVICE MANUAL Outdoor unit [Model names] PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP100YHA PUHZ-HRP125YHA PUHZ-HRP71VHA2 PUHZ-HRP100VHA2 PUHZ-HRP100YHA2 PUHZ-HRP125YHA2 R410A [Service Ref.] PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP100YHA PUHZ-HRP125YHA PUHZ-HRP71VHA2 PUHZ-HRP71VHA2R1 PUHZ-HRP100VHA2 PUHZ-HRP100VHA2R1 PUHZ-HRP100VHA2R2 PUHZ-HRP100YHA2 PUHZ-HRP100YHA2R1 PUHZ-HRP125YHA2 PUHZ-HRP125YHA2R1 No.
1 TECHNICAL CHANGES PUHZ-HRP100VHA2R1 PUHZ-HRP100VHA2R2 • Outdoor controller board (C.B.) has been changed. (S/W version up) PUHZ-HRP 71VHA2 PUHZ-HRP100VHA2 PUHZ-HRP100YHA2 PUHZ-HRP125YHA2 PUHZ-HRP 71VHA2R1 PUHZ-HRP100VHA2R1 PUHZ-HRP100YHA2R1 PUHZ-HRP125YHA2R1 • Replace filter has been deleted. • Outdoor controller board (C.B.) has been changed. (S/W version up) 1. DRAIN HOSE HEATER (option: PAC-SE60RA-E) is connectable. 2. The starting temperature of FLASH INJECTION is settable.
2 REFERENCE MANUAL 2-1. INDOOR UNIT SERVICE MANUAL Service Manual No. Model name Service Ref. PLA-RP35/50/60/71/100/125BA PLA-RP100/125/140BA2 PLA-RP35/50/60/71/100/125BA(1).UK PLA-RP35/50/60/71/100/125BA#2.UK PLA-RP35/50/60/71BAR3.UK PLA-RP100/125/140BA2.UK PLA-RP100BA3 PLA-RP100BA3 PKA-RP60/100KAL PKA-RP60100KAL.
3 SAFETY PRECAUTION 3-1. ALWAYS OBSERVE FOR SAFETY Before obtaining access to terminal, all supply circuits must be disconnected. Preparation before the repair service. • Prepare the proper tools. • Prepare the proper protectors. • Provide adequate ventilation. • After stopping the operation of the air conditioner, turn off the power-supply breaker. • Discharge the condenser before the work involving the electric parts. Precautions during the repair service.
[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. [2] Additional refrigerant charge When charging directly from cylinder · Check that cylinder for R410A on the market is syphon type.
3-3. PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES (1) Flowchart Measure the existing pipe thickness and check for damage. The existing pipe thickness meets specifications and the pipes are not damaged. The existing pipe thickness does not meet specifications or the pipes are damaged. Check if existing air conditioner can operate. Existing air conditioner can operate. Existing air conditioner cannot operate. Perform cooling operation for about 30 minutes and then do a pump down work.
(2) Cautions for refrigerant piping work New refrigerant R410A is adopted for replacement inverter series. Although the refrigerant piping work for R410A is same as for R22, exclusive tools are necessary so as not to mix with different kind of refrigerant. Furthermore as the working pressure of R410A is 1.6 times higher than that of R22, their sizes of flared sections and flare nuts are different.
4 FEATURES PUHZ-HRP71/100VHA2 PUHZ-HRP71/100VHA2R1 PUHZ-HRP100VHA2R2 PUHZ-HRP100/125YHA2 PUHZ-HRP100/125YHA2R1 PUHZ-HRP71/100VHA PUHZ-HRP100/125YHA Industry-first flash injection circuit is equipped, which enables to keep the equal capacity with the rating even when outside temperature is -15:. Performance about 30%UP (kW) 15 HRP125 Heating capacity HIGH HEATING CAPACITY 25 RP1 HRP100 00 RP1 10 HRP71 RP71 0 -25 -20 -15 -10 -5 0 Outdoor W.B. temp.
5 SPECIFICATIONS Service Ref. OUTDOOR UNIT Mode Power supply (phase, cycle, voltage) Max. current External finish Refrigerant control Compressor Model Motor output Starter type Protection devices Crankcase heater Heat exchanger Fan Fan(drive) % No. Fan motor output Airflow Defrost method Noise level Dimensions Cooling Heating W D H REFRIGERANT PIPING Charge Oil (Model) Pipe size O.D.
6 DATA 6-1. REFILLING REFRIGERANT CHARGE (R410A : kg) 10m 20m Piping length (one way) 30m 40m 50m PUHZ-HRP71VHA PUHZ-HRP71VHA2 PUHZ-HRP71VHA2R1 5.1 5.3 5.5 6.1 6.7 7.3 7.9 5.5 PUHZ-HRP100VHA(2) PUHZ-HRP100YHA(2) PUHZ-HRP100VHA2R1 PUHZ-HRP100YHA2R1 PUHZ-HRP100VHA2R2 5.1 5.3 5.5 6.1 6.7 7.3 7.9 5.5 5.1 5.3 5.5 6.1 6.7 7.3 7.9 5.5 Service Ref. 60m 75m Factory charged PUHZ-HRP125YHA PUHZ-HRP125YHA2 PUHZ-HRP125YHA2R1 Additional charge is required for pipes longer than 30m.
6-3. NOISE CRITERION CURVES MODE SPL(dB) COOLING 52 HEATING 53 PUHZ-HRP71VHA2(R1) PUHZ-HRP100VHA2(R1/R2) PUHZ-HRP100YHA2(R1) PUHZ-HRP125YHA2(R1) LINE 90 OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 μbar) OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.
6-4. STANDARD OPERATION DATA PEAD-RP71JA Representative matching Electrical circuit Total Mode Refrigerant circuit PEAD-RP125JA Cooling Heating Cooling Heating Cooling Heating Capacity W 7,100 8,000 10,000 11,200 12,500 14,000 Input kW 2.15 2.34 3.06 3.10 3.89 3.88 Indoor unit PEAD-RP71JA PEAD-RP100JA PEAD-RP125JA Phase , Hz 1 , 50 1 , 50 1 , 50 230 230 230 Voltage V Current A Outdoor unit 1.28 1.17 1.68 1.57 2.40 2.
FREE er Ov m 10m m 0m 15 er Ov 10 Service space Over ···Refrigerant LIQUID pipe connection (FLARE)W 9.
FREE Ov m er 10 m m 0m 15 er Ov 10 Over Service space ···Refrigerant LIQUID pipe connection (FLARE) 9.
WIRING DIAGRAM [LEGEND] SYMBOL TB1 MC MF1, MF2 21S4 63H 63L SV TH3 TH32 TH33 TH4 TH6 TH7 TH8 LEV-A, LEV-B,LEV-C DCL ACTM CB CY1,CY2 PUHZ-HRP100VHA NAME Terminal Block Motor for Compressor Fan Motor Solenoid Valve (Four-Way Valve) High Pressure Switch Low Pressure Switch Solenoid Valve (Bypass Valve) Thermistor Thermistor Thermistor
PUHZ-HRP100YHA [LEGEND] SYMBOL TB1 TB2 MC MF1, MF2 21S4 63H 63L SV TH3 TH32 TH33 TH4 TH6 TH7 LEV-A, LEV-B, LEV-C ACL1~ACL4 CB1, CB2 CK CY1, CY2 RS PUHZ-HRP125YHA NAME Terminal Block Terminal Block Motor for Compressor Fan Motor Solenoid Valve (Four-Way Valve) High Pressure Switch Low Pressure Switch Solenoid Valve (Bypass Valve) Thermistor Thermistor Thermistor
SYMBOL P.B. U/V/W LI NI DCL1, DCL2 IGBT E1,E2,E3,E4 C.B.
PUHZ-HRP125YHA2 SYMBOL P.B. TB-U/V/W TB-L1/L2/L3 TB-P2 TB-C1 TB-N1 X52A N.F. LI1/LI2/LI3/NI LO1/LO2/LO3/NO GD1, GD3 CONV.B.
PUHZ-HRP71VHA2R1 PUHZ-HRP100VHA2R1 PUHZ-HRP100VHA2R2 SW5 SW6 SW7 SW8 SW9 SWP LEV-C TRANS 1 1 CNDC (PNK) CN2 (WHT) 5 1 1 2 7 F1 3 1 2 1 LEV-C (BLU) 1 SW7 SW9 SW6 2 1 M-NET ADAPTER CN2M (WHT) 3 3 1 SV1 CND (WHT) 3 1 CN31 3 6 3 SW12 LED4 1 3 A B S TB7 1 21S4 3 (GRN) F4 4 14 CNM (WHT) CN52C (RED) LED3 *1 SW1 1 CN4 (WHT) F3 CNAC (WHT) 1 3 3 NAME Terminal Block Connector Connector Connector Switch<
SYMBOL P.B. TB-U/V/W TB-L1/L2/L3 TB-P2 TB-C1 TB-N1 X52A N.F. LI1/LI2/LI3/NI LO1/LO2/LO3/NO GD1, GD3 CONV.B. L1-A1/IN L1-A2/OU L2-A2/OU L3-A2/OU N-IN CK-OU 1 2 LEV-C (BLU) SW7 SW5 SW6 6 3 4 1 SV1 (GRY) 3 WHT V MS BLK TB-L2 WHT TB-L1 RED BLK -- TB-L3 RS + + RED TB-P2 CB1 + CB2 3 3 1 CK L1-IN 2 2 1 BLU CNAC2 3 (RED) RED CNCT (RED) 1 3 RED N.F.
WIRING SPECIFICATIONS 9 9-1. FIELD ELECTRICAL WIRING (power wiring specifications) Outdoor unit model Outdoor unit power supply HRP71VHA(2), HRP100VHA ~/N (single), 50 Hz, 230 V *1 Wiring Circuit rating Wire No.
9-2. SEPARATE INDOOR UNIT/ OUTDOOR UNIT POWER SUPPLIES The following connection patterns are available. The outdoor unit power supply patterns vary on models. 1:1 System Outdoor unit power supply Earth leakage breaker Wiring circuit breaker or isolating switch Outdoor unit Indoor unit/outdoor unit connecting cords Remote controller Indoor unit Option Indoor unit power supply * The optional indoor power supply terminal kit is required.
9-3. INDOOR – OUTDOOR CONNECTING CABLE The cable shall not be lighter than design 60245 IEC or 60227 IEC. Outdoor power supply Indoor unit-Outdoor unit Indoor unit-Outdoor unit earth Wire No. % Size ($) Max. 45m Max. 50m Max. 80m 3 % 1.5 (polar) 3 % 2.5 (polar) 3 % 2.5 (polar) and S3 separated 1 % Min. 1.5 1 % Min. 2.5 1 % Min. 2.5 * The max. cable length may vary depending on the condition of installation, humidity or materials, etc. Indoor/Outdoor separate power supply Wire No.
9-4. M-NET WIRING METHOD (Points to note) (1) Outside the unit, transmission wires should stay away from electric wires in order to prevent electromagnetic noise from making an influence on the signal communication. Place them at intervals of more than 5 cm. Do not put them in the same conduit tube. (2) Terminal block (TB7) for transmission wires should never be connected to 220~240V power supply. If it is connected, electronic parts on M-NET P.C. board may burn out. (3) Use 2-core x 1.
M-NET wiring M-NET (1) Use 2-core × 1.25mm2 shield wire for electric wires. terminal Ground (Excluding the case connecting to system controller.) block wire (2) Connect the wire to the M-NET terminal block. Connect one core of the transmission wire (non-polar) to A(M1) terminal and the other to B(M2). Peel the A B S shield wire, twist the shield part to a string and connect it to S terminal.
10 REFRIGERANT SYSTEM DIAGRAM PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP125YHA PUHZ-HRP71VHA2 PUHZ-HRP100VHA2 PUHZ-HRP125YHA2 PUHZ-HRP100YHA2 High pressure sensor (63HS) (only for HRP·HA2) Heat exchanger Strainer #50 Charge plug (High pressure) Charge plug (Low pressure) Muffler Thermistor TH3 (Liquid) High pressure switch 63H Low pressure switch 63L Linear expansion valve B Refrigerant LIQUID pipe Strainer connection #100 (3/8 inch) Stop valve (with service port) PUHZ-HRP71VHA2R1 PUHZ-HRP100VHA2R1
10-1. Refrigerant recovering (pump down) Perform the following procedures to recover the refrigerant while operating the indoor unit or the outdoor unit. 1 Turn on the power supply (circuit breaker). * When power is supplied, make sure that “CENTRALLY CONTROLLED” is not displayed on the remote controller. If “CENTRALLY CONTROLLED” is displayed, the refrigerant recovering (pump down) cannot be completed normally.
11 TROUBLESHOOTING 11-1. TROUBLESHOOTING Present and past error codes are logged and displayed on the wired remote controller and control board of outdoor unit. Actions to be taken for service, which depends on whether or not the trouble is reoccurring at service, are summarized in the table below. Check the contents below before investigating details.
11-2-2. Test run for wired remote controller MENU RETURN SELECT ON/OFF Function buttons F1 1 Select "Service" from the Main menu, and press the F3 F4 Service menu button. Select "Test run" with the F1 or F2 button, and press the F2 Test run Input maintenance info. Function setting Check Self check button. Main menu: Cursor F1 2 Select "Test run" with the F1 or F2 button, and press the button.
When an error occurs, the following screen will appear. Check the error status, stop the operation, and consult your dealer. 1 Error code, error unit, refrigerant address, unit model name, and serial number will appear. The model name and serial number will appear only if the information have been registered. Error information Error code Error unit IU Ref. address Unt# Model name Serial No. Reset error: Reset button Page Reset Press the F1 or F2 button to go to the next page.
While no errors are occurring, page 2/2 of the error information can be viewed by selecting "Error information" from the Main menu. Errors cannot be reset from this screen. Main Main menu Restriction Energy saving Night setback Filter information Error information Main display: Cursor Page F1 F2 F3 F4 1 Select "Service" from the Main menu, and press the button. Select "Check" with the F1 or F2 button, and press the Service menu button.
11-2-3. Test run for wired remote controller "TEST RUN" and the currently selected operation mode are displayed alternately. Displays the remaining test run time. Operating procedures 1. Turn on the main power supply. While the room temperature display on the remote controller is “PLEASE WAIT”, the remote controller is disabled. Wait until “PLEASE WAIT” disappears before using remote controller. “PLEASE WAIT” appears for about 2 minutes after power supply is turned on. +1 2.
11-2-4. Test run for wireless remote controller Measure an impedance between the power supply terminal block on the outdoor unit and ground with a 500V Megger and check that it is equal to or greater than 1.0M". 1 Turn on the main power to the unit. TEST RUN TEST RUN button twice continuously. 2 Press the (Start this operation from the status of remote controller display turned off.) TEST RUN TEMP ON/OFF A and current operation mode are displayed.
11-3. HOW TO PROCEED "SELF-DIAGNOSIS" 11-3-1. Self-diagnosis 1 Select "Service" from the Main menu, and press the button. Select "Self check" with the F1 or F2 button, and press the Service menu Test run Input maintenance info. Function setting Check Self check button. Main menu: Cursor F1 2 With the F1 or F2 button, enter the refrigerant address, and press the button. F2 F3 F4 Self check Ref. address Select: Address 3 Error code, unit number, attribute will appear.
11-3-2. Remote controller check * If operations cannot be completed with the remote controller, diagnose the remote controller with this function. 1 Select "Service" from the Main menu, and press the button. Service menu Maintenance password Remote controller check Select "Remote controller check" with the F1 or F2 button, and press the button.
11-3-3. Self-diagnosis If a problem occurs in the air conditioner, the indoor and outdoor units will stop, and the problem is shown in the remote controller display. [CHECK] and the refrigerant address are displayed on the temperature display, and the error code and unit number are displayed alternately as shown below. (If the outdoor unit is malfunctioning, the unit number will be “00”.
When the error history is reset, the display will look like the one shown below. However, if you fail to reset the error history, the error content will be displayed again. Press the ON/OFF button twice within 3 seconds. The self-diagnosis address or refrigerant address will blink. Cancel self-diagnosis. Self-diagnosis can be cancelled by the following 2 methods. Press the CHECK Press the button twice within 3 seconds. ON/OFF button.
11-3-6. Malfunction-diagnosis method by wireless remote controller When a malfunction occurs to air conditioner, both indoor unit and outdoor unit will stop and operation lamp blinks to inform unusual stop. [Procedure] Refrigerant address display CHECK CHECK display Temperature button TEMP ON/OFF 1. Press the CHECK button twice. • "CHECK" lights, and refrigerant address "00" blinks.
• Refer to the following tables for details on the check codes. [Output pattern A] Beeper sounds OPERATION INDICATOR lamp blink pattern Beep Beep Beep Beep Off Beep 1st 2 nd 3 rd nth On On On On Beep Beep 1st Off On 2 nd · · · Repeated On 0.5 sec. Approx. 2.5 sec. 0.5 sec. 0.5 sec. Self-check Approx. 2.5 sec. 0.5 sec. 0.5 sec. 0.5 sec. starts. (Start signal Number of blinks/beeps in pattern indicates the check Number of blinks/beeps in pattern indicates received) code in the following table.
11-4. SELF-DIAGNOSIS ACTION TABLE Error Code Abnormal point and detection method None F3 (5202) F5 (5201) — (Note 1) Refer to indoor unit section for code P and code E. Case 1 No voltage is supplied to terminal block (TB1) of outdoor unit. a) Power supply breaker is turned off.
Error Code 2 connector open Abnormal if both 63H and 63L connector circuits are open for three minutes continuously after power supply. F9 (4119) EA (6844) Eb (6845) Case Judgment and action 1 Disconnection or contact failure of connector (63H,63L) on outdoor controller circuit board. 2 Disconnection or contact failure of 63H, 63L 3 63H and 63L are working due to defective parts. 4 Defective outdoor controller board. 1 Check connection of connector (63H,63L) on outdoor controller circuit board.
Error Code Abnormal point and detection method High pressure (High-pressure switch 63H operated) Abnormal if high-pressure switch 63H operated ( * ) during compressor operation. * 4.15 MPa 63H: High-pressure switch U1 (1302) U2 (1102) U3 (5104) High discharging temperature (1) Abnormal if discharge temperature thermistor (TH4) exceeds 125: or 110: continuously for 5 minutes.
Error Code Abnormal point and detection method Judgment and action Case Open/short of outdoor unit thermistors 1 Disconnection or contact failure 1 Check connection of connector (TH3, TH32, (TH3, TH32, TH33, TH6, TH7, and TH8) of connectors TH33, TH7/6) on the outdoor controller circuit Abnormal if open or short is detected board. Outdoor controller circuit board: during compressor operation.
Error Code Judgment and action Abnormal point and detection method Case To find out the details about U9 error, turn ON SW2-1, 2-2, 2-3, 2-4, 2-5, 2-6 when U9 error occurs. Detailed To find out the detail history (latest) about U9 error, turn ON SW2-1, 2-2, 2-6. codes Refer to 11-10.
From the previous page. Error Code U9 (4220) Abnormal point and detection method Detailed PFC error (Overvoltage/ codes Undervoltage/Overcurrent) • PFC detected any of the followings a) Increase in DC bus voltage to 420V b) Decrease in PFC control voltage to 12V DC or lower 10 c) Increase in input current to 50A peak (For models equipped with single-phase PFC only) 20 Ud (1504) UE (1302) UF (4100) UH (5300) Case Not applicable for HRP71, 100V and HRP100/125Y models.
Error Code Abnormal point and detection method Judgment and action 1 Stop valve of outdoor unit is closed during operation. 2 Disconnection or loose connection of connector (63L) on outdoor controller board 3 Disconnection or loose connection of 63L 4 Defective outdoor controller board 5 Leakage or shortage of refrigerant 6 Malfunction of linear expansion valve 1 Check stop valve.
Error Code E1 or E2 E3 or E5 Abnormal point and detection method Remote controller control board 1 Abnormal if data cannot be normally read from the nonvolatile memory of the remote controller control board. (Error code: E1) 2 Abnormal if the clock function of remote controller cannot be normally operated.
Error Code Abnormal point and detection method Case Judgment and action Freezing/overheating protection is working Overheating protection Abnormal if condensing temperature of pressure sensor (63HS) detects Tcond. : or more and compressor operation frequency is less than or equal to 25 Hz. Detection is inoperative during defrosting.
Error Code A0 (6600) A2 (6602) A3 (6603) A6 (6606) (Note) “Indoor unit” in the text indicates M-NET board in outdoor unit. Abnormal point and detection method Case Address duplicate definition 1 There are 2 or more same This error is displayed when transmission address of controller of outdoor from the units of same address is detected. unit, indoor unit, FRESH Note) The address and attribute displayed MASTER, or LOSSNAY.
Error Code Abnormal point and detection method Case NO ACK signal 1. Transmitting side controller detects abnormal if a message was transmitted but there is no reply (ACK) that a message was received. Transmitting side detects abnormality every 30 seconds, 6 times continuously. Note) The address and attribute displayed at remote controller indicate the controller that did not reply (ACK).
From the previous page. Error Code Abnormal point and detection method Case Judgment and action 4. If displayed address or attribute is remote controller, indoor unit detects abnormality when indoor unit transmits signal to remote controller and there was no reply (ACK). Same as mentioned in “A7” of the previous 1 During group operation with indoor unit of multi-refrigerant page.
Error Code Abnormal point and detection method M-NET NO RESPONSE Abnormal if a message was transmitted and there were reply (ACK) that message was received, but response command does not return. Transmitting side detects abnormality every 30 seconds, 6 times continuously. Note) The address and attribute displayed at remote controller indicate the controller that did not reply (ACK). A8 (6608) Case 1 Transmitting condition is repeated fault because of noise and the like.
Factor Phenomena 4. Even controlling by the wireless 1 The pair number settings of the wireless remote remote controller, no beep is heard controller and indoor controller board are and the unit does not start operating. mismatched. Operation display is indicated on wireless remote controller. Countermeasure 1 Check the pair number settings. 5. When operating by the wireless remote controller, beep sound is heard, however, unit does not start operating.
Symptoms: “PLEASE WAIT” is kept being displayed on the remote controller. Diagnosis flow Cause Inspection method and troubleshooting Check the display time of “PLEASE WAIT” after turning on the main power. 6 minutes or more How long is “PLEASE WAIT” kept being displayed on the remote controller? 2 minutes or less 2 to 6 minutes Are any error codes displayed on the remote controller? Check the LED display of the outdoor controller circuit board.
Symptoms: Nothing is displayed on the remote controller Diagnosis flow Cause LED display of the indoor controller board LED1 : LED2 : LED3 : Inspection method and troubleshooting Check the voltage between S1 and S2 on the terminal block (TB4) of the indoor unit which is used to connect the indoor unit and the outdoor unit. AC 198V to AC 264V? YES NO Check the voltage among L(L3) and N on the terminal block (TB1) of the outdoor power circuit board.
Symptoms: Nothing is displayed on the remote controller Diagnosis flow Cause LED display of the indoor controller board LED1 : LED2 : LED3 : or Inspection method and troubleshooting Check the voltage between S1 and S2 on the terminal block (TB4) of the indoor unit which is used to connect the indoor unit and the outdoor unit. NO AC 198V to AC 264V? YES Not lighting. Check the status of the indoor controller board LED3 display.
Symptoms: Nothing is displayed on the remote controller Diagnosis flow Cause LED display of the indoor controller board LED1 : LED2 : or LED3 : — Inspection method and troubleshooting Check the voltage of the terminal block (TB6) of the remote controller. DC 10V to DC 16V? YES • Defective remote controller • Replace the remote controller. NO Check the status of the LED2.
• Before repair Frequent calling from customers Phone Calls From Customers Unit does not operate at all. The operating display of remote controller does not come on. Unit cannot be restarted for a while after it has stopped. Remote controller How to Respond Check if power is supplied to air conditioner. Nothing appears on the display unless power is supplied. Wait around 3 minutes to restart unit. The air conditioner is in a state of being protected by the microcomputer’s directive.
Phone Calls From Customers How to Respond The room cannot be cooled or heated sufficiently. Check the set temperature of remote controller. The outdoor unit cannot be operated if the set temperature is not appropriate. The outdoor unit operates in the following modes. COOL: When the set temperature is lower than the room temperature. HEAT: When the set temperature is higher than the room temperature. Note Check if filters are not dirty and clogged.
Phone Calls From Customers How to Respond Note Something is wrong with the blower….. Air blows out for a while after HEAT operation is stopped. However, this control is also This is not a malfunction. The blower is operating just for cooling down the applied to the models which heated-up air conditioner. This will be done within has no electric heater. 1 minute. This control is conducted only when the HEAT operation is stopped with the electric heater ON.
Phone Calls From Customers How to Respond A white mist is expelled from the indoor unit. This is not a malfunction. This may occur when the operation gets started in the room of high humidity. Water or moisture is expelled from the outdoor unit. Cooling: when pipes or piping joints are cooled, they get sweated and water drips down. Heating: water drips down from the heat exchanger. * Make use of optional parts “Drain Socket” and “Drain pan” if these water needs to be recovered and drained out for once.
11-6. HOW TO CHECK THE PARTS PUHZ-HRP71VHA PUHZ-HRP71VHA2 PUHZ-HRP100VHA PUHZ-HRP100VHA2 PUHZ-HRP100YHA PUHZ-HRP100YHA2 PUHZ-HRP125YHA PUHZ-HRP125YHA2 PUHZ-HRP71VHA2R1 PUHZ-HRP100VHA2R1 PUHZ-HRP100YHA2R1 PUHZ-HRP125YHA2R1 PUHZ-HRP100VHA2R2 Check points Parts name Thermistor (TH3) Disconnect the connector then measure the resistance with a tester.
Check method of DC fan motor (fan motor / outdoor controller circuit board) Notes · 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) for the motor with the power supply on. (It causes trouble of the outdoor controller circuit board and fan motor.) Self check Symptom : The outdoor fan cannot turn around. Fuse check Check the fuse (F5) on outdoor controller board. Replace outdoor controller board (C.
50 Low temperature thermistors • Thermistor (TH3) • Thermistor (TH6) • Thermistor (TH7) • Thermistor (TH32) • Thermistor (TH33) Thermistor R0 = 15k' ± 3% B constant = 3480 ± 2% Resistance (k ) 40 1 1 Rt =15exp{3480( 273+t – 273 )} 0: 10: 20: 25: 15k' 9.6k' 6.3k' 5.2k' 30: 40: 30 20 4.3k' 3.
Linear expansion valve (1) Operation summary of the linear expansion valve • Linear expansion valve opens/closes through stepping motor after receiving the pulse signal from the outdoor controller board. • Valve position can be changed in proportion to the number of pulse signal.
(3) How to attach and detach the coil of linear expansion valve Linear expansion valve is separable into the main body and the coil as shown in the diagram below. Stopper Main body Coil Lead wire Hold the lower part of the main body (shown as A) firmly so that the main body does not move and detach the coil by pulling it upward. Be sure to detach the coil holding main body firmly. Otherwise pipes can bend due to pressure.
11-8. EMERGENCY OPERATION (1) When the error codes shown below are displayed on outdoor unit or microprocessor for wired remote controller or indoor unit has a failure, but no other problems are found, emergency operation will be available by setting the emergency operation switch (SWE) on indoor controller board to ON and short-circuiting the connector (CN31) on outdoor controller board. LWhen following abnormalities occur, emergency operation will be available.
(5) Operation data during emergency operation During emergency operation, no communication is performed with the indoor unit, so the data items needed for operation are set to the following values: Operation mode Operation data Remarks COOL HEAT Intake temperature (TH1) 27 20.
11-9. TEST POINT DIAGRAM Outdoor controller circuit board PUHZ-HRP71VHA PUHZ-HRP100VHA TEST POINT1 is high voltage.
Outdoor controller circuit board PUHZ-HRP71VHA2 PUHZ-HRP71VHA2R1 PUHZ-HRP100VHA2 PUHZ-HRP100VHA2R1 PUHZ-HRP100YHA2 PUHZ-HRP100YHA2R1 PUHZ-HRP125YHA2 PUHZ-HRP125YHA2R1 SW9 SW7 Demand control setting Function switch PUHZ-HRP100VHA2R2 SW1 Manual defrost, detect history record reset, refrigerant address SW6 CN51 External signal output • Compressor operating signal • Abnormal signal CNDM Model select 1 to 2: Input of low-level sound priority mode 1 to 3: Input of external contact point SW4 Test oper
Outdoor noise filter circuit board PUHZ-HRP71VHA PUHZ-HRP100VHA CN52C 52C driving signal (Connect to the outdoor controller circuit board (CN52C).
Outdoor noise filter circuit board PUHZ-HRP100YHA PUHZ-HRP100YHA2 PUHZ-HRP100YHA2R1 PUHZ-HRP125YHA PUHZ-HRP125YHA2 PUHZ-HRP125YHA2R1 LI1, LI2, LI3, NI POWER SUPPLY LI1-LI2/LI-LI3/LI3-LI1 : AC380/400/415V input LI1-NI/LI2-NI/LI3-NI : AC220/230/240V input (Connect to the terminal block (TB1)) GD1 Connect to the earth CNAC1, CNAC2 AC220/230/240V (Connect to the outdoor controller circuit board (CNAC)) GD3 Connect to the earth CNCT Primary current CNDC (Connect to the outdoor power circuit board (CN5))
Outdoor power circuit board PUHZ-HRP71VHA PUHZ-HRP100VHA CN2 Connect to the outdoor controller circuit board (CN2) 1-5:Transmitting signal to the outdoor controller circuit board (0~5V DC) 2-5:Zero cross signal (0~5V DC) 3,4:18V DC 6-5:16V DC 7-5:16V DC Brief Check of POWER MODULE * Usually, they are in a state of being short-circuited if they are broken. Measure the resistance in the following points (connectors, etc.). If they are short-circuited, it means that they are broken. 1.
Outdoor power circuit board PUHZ-HRP71VHA2 PUHZ-HRP71VHA2R1 PUHZ-HRP100VHA2 PUHZ-HRP100VHA2R1 PUHZ-HRP100VHA2R2 CN4 Connect to the outdoor controller circuit board (CN4) N2 CN2 Connect to the outdoor controller circuit board (CN2) 1-5: Transmitting signal to outdoor controller circuit board (0-5 V DC) 2-5: Zero cross signal (0-5 V DC) 3-4: 18 V DC 6-5: 16 V DC 7-5: 16 V DC CN52C CNDC Connect to the smoothing capacitor CB - 52C driving signal Connect to the outdoor controller circuit board (CN52C) U/V/
Brief Check of POWER MODULE * Usually, they are in a state of being short-circuited if they are broken. Measure the resistance in the following points (connectors, etc.). If they are short-circuited, it means that they are broken. 1. Check of POWER MODULE 1.Check of DIODE circuit L1 - P1 , L2 - P1 , L3 - P1 , L1 - N1 , L2 - N1 , L3 - N1 2.
Outdoor converter circuit board PUHZ-HRP100YHA PUHZ-HRP100YHA2 PUHZ-HRP100YHA2R1 PUHZ-HRP125YHA PUHZ-HRP125YHA2 PUHZ-HRP125YHA2R1 CK-OU Connect to the CK capacitor L1-IN, N-IN L1-A1 Connect to the noise filter circuit board (LO1, No) Connect to the ACL1 CN7 Connect to the outdoor power circuit board (CN7) L1-A2, L2-A2, L3-A2 Connect to the ACL1, ACL2, ACL3 OCH425F L1-OU, L2-OU, L3-OU Connect to the outdoor power circuit board (TB-L1, L2, L3) 76
P Connect to the outdoor power circuit board (TABP2) Active filter module PUHZ-HRP71VHA PUHZ-HRP100VHA L1, L2 Connect to the DCL (Reactor) N1 Non-connect Upper side Lower side N2 Non-connect + Connect to the outdoor power circuit board (TABP1) Connect to the outdoor power circuit board (TABN1) Connection and internal circuit diagram DCL L1 L2 ACTM (+) P N1 N2 (- ) (–) and L2 P and L2 P and Io L2 and Io open less than 1" short 100k" ~ 1M" open *1 short 100k" ~ 1M" open *1 short 10
11-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS (1) Function of switches Type of Switch No. switch The black square (■) indicates a switch position. Action by the switch operation Function 1 Forced defrost *1 2 Abnormal history clear OFF Start Normal When compressor is working in heating operation.
Type of Switch No. Switch 1 Function No function Power failure automatic recovery *2 Auto recovery No auto recovery When power supply ON 3,4,5 No function — — — 6 Model select 2 SW5 1 SW7 *4 2 3 Dip switch The black square (■) indicates a switch position.
Special function (a) Low-level sound priority mode (Local wiring) Unit enters into Low-level sound priority mode by external signal input setting. Inputting external signals to the outdoor unit decreases the outdoor unit operation sound 3 to 4 dB lower than that of usual. Adding a commercial timer or on-off switch contactor setting to the CNDM connector which is optional contactor for demand input located on the outdoor controller board enables to control compressor operation frequency.
The blinking patterns of both LED1 (green) and LED2 (red) indicate the types of abnormality when it occurs. Types of abnormality can be indicated in details by connecting an optional part “A-Control Service Tool (PAC-SK52ST)” to connector CNM on outdoor controller board.
Indication Outdoor controller board LED1 (Green) LED2 (Red) Error Contents 3 blinking 1 blinking Abnormality of shell thermostat and discharging temperature (TH4) Abnormality of superheat due to low discharge temperature 2 blinking Abnormal high pressure (High pressure switch 63H operated.) Abnormal low pressure (Low pressure switch 63L operated.
[When optional part “A-Control Service Tool (PAC-SK52ST)” is connected to outdoor controller board (CNM)] Digital indicator LED1 displays 2 digit number or code to inform operation condition and the meaning of error code by controlling DIP SW2 on “A-Control Service Tool”. Operation indicator The black square (■) indicates a switch position.
The black square (■) indicates a switch position. Pipe temperature / Liquid (TH3) – 40~90 ON Explanation for display Display detail SW2 setting 1 2 3 4 5 6 – 40~90 (When the coil thermistor detects 0: or below, “–” and temperature are displayed by turns.) (Example) When -10:; 0.5 secs. 0.5secs. 2 secs. Unit : 10 Discharge temperature (TH4) 3~217 ON 1 2 3 4 5 6 ON 3~217 (When the discharge thermistor detects 100: or more, hundreds digit, tens digit and ones digit are displayed by turns.
The black square (■) indicates a switch position. SW2 setting ON 1 2 3 4 5 6 ON Explanation for display Display detail Pipe temperature / Liquid (TH3) on error – 40~90 occurring (When the coil thermistor detects 0: or below, “–” – 40~90 and temperature are displayed by turns.) (Example) When –15:; 0.5 secs. 0.5secs. 2 secs.
The black square (■) indicates a switch position. Unit Explanation for display Display detail SW2 setting The number of connected indoor units ON 0~3 (The number of connected indoor units are displayed.) Unit 1 2 3 4 5 6 Capacity setting display Displayed as an outdoor capacity code.
The black square (■) indicates a switch position. SW2 setting ON Unit Explanation for display Display detail Indoor setting temperature 17~30 17~30 Outdoor pipe temperature / Cond./ Eva. (TH6) (V/YHA) -39~88 Pressure saturation temperature (T63HS) (V/YHA2) -39~88 -39~88 (When the temperature is 0: or less, “–” and temperature are displayed by turns.) Outdoor outside temperature (TH7) -39~88 -39~88 (When the temperature is 0: or less, “–” and temperature are displayed by turns.
The black square (■) indicates a switch position. DC bus voltage 180~370 ON Explanation for display Display detail SW2 setting Unit 180~370 (When it is 100V or more, hundreds digit, tens digit and ones digit are displayed by turns.) V 1 2 3 4 5 6 Capacity save 0~255 When air conditioner is connected to M-NET and capacity save mode is demanded, “0”~”100” is displayed. ON 1 2 3 4 5 6 0~255 (When the capacity is 100%, hundreds digit, tens digit and ones digit are displayed by turns.
The black square (■) indicates a switch position. SW2 setting Display detail Explanation for display LEV-A opening pulse on error occurring 0~480 0~480 (When it is 100 pulse or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 130 pulse; 0.5 secs. 0.5secs. 2 secs.
The black square (■) indicates a switch position. Display detail Explanation for display Unit Discharge superheat on error occurring SHd 0~255 Cooling = TH4-TH6 Heating = TH4-TH5 (V/YHA) 0~255 (When the temperature is 100°C or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 150°C; 0.5 secs. 0.5secs. 2 secs. 1 50 : 0~130 (When the temperature is 100°C or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 115°C; 0.5 secs. 0.
The black square (■) indicates a switch position. SW2 setting Explanation for display Display detail Controlling status of compressor operating frequency Unit The following code will be a help to know the operating status of unit. •The tens digit Display Compressor operating frequency control 1 Primary current control Secondary current control 2 ON •The ones digit (In this digit, the total number of 1 2 3 4 5 6 activated control is displayed.
12 FUNCTION SETTING 12-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER Each function can be set according to necessity using the remote controller. The setting of function for each unit can only be done by the remote controller. Select function available from the table 1.
Function selections (1) Functions are available when setting the unit number to 00 (Select 00 referring to 4 setting the indoor unit number.) Function Mode No. Setting No.(2) Functions are available when setting the unit number to 01-03 or AL (07 in case of wireless remote controller) • When setting functions for an indoor unit in an independent system, set the unit number to 01 referring to 4 Set the indoor unit number of Operating Procedure.
12-1-1. Selecting functions using the wired remote controller Maintenance password is required 1 Select "Service" from the Main menu, and press the button. *At the main display, the menu buttom and select "Service" to make the maintenance setting. Main Main menu Maintenance Initial setting Service Main display: Cursor 2 When the Service menu is selected, a window will appear asking for the pass- Page Service menu word.
1 Select "Service" from the Main menu, and press the Service menu button. Select "Function setting" with the F1 or F2 button, and press the Test run Input maintenance info. Function setting Check Self check button. Main menu: Cursor F1 2 Set the indoor unit refrigerant addresses and unit numbers with the F1 through F4 buttons, and then press the setting. button to confirm the current F2 Monitor: refrigerant address will start fan operation. F1 appears highlighted.
12-1-2. Selecting functions using the wired remote controller First, try to familiarize yourself with the flow of the function selection procedure. In this section, an example of setting the room temperature detection position is given. For actual operations, refer to steps to . Setting number Refrigerant address Unit number Mode number Modes 01 to 14 can be activated by pressing buttons and simultaneously, and modes 15 to 28 by pressing buttons and .
[Operating Procedure] Check the function selection settings. Changing the function selection settings for each mode will change its relevant mode function. Perform steps through to check all the function selection settings, and then change the settings as necessary. For the initial settings, refer to the
in the chapter 12-1. The following is the procedure to operate the remote controller internal sensor. Turn off the remote controller. Set the outdoor address.12-1-3. Selecting functions using the wireless remote controller (Type C) Functions can be selected with the wireless remote controller. Function selection using wireless remote controller is available only for refrigerant system with wireless function. Refrigerant address cannot be specified by the wireless remote controller. [Flow of function selection procedure] Flow of function selection procedure The flow of the function selection procedure is shown below.
12-2. FUNCTION SELECTION OF REMOTE CONTROLLER 12-2-1. PAR-31MAA The functions of the function buttons change depending on the screen. Refer to the button function guide that appears at the bottom of the LCD for the functions they serve on a given screen. When the system is centrally controlled, the button function guide that corresponds to the locked button will not appear. Fri Room Cool Set temp. Auto Mode Temp.
Setting and display items Setting details Vane · Louver · Vent. (Lossnay) Use to set the vane angle. • Select a desired vane setting from five different settings. Use to turn ON / OFF the louver. • Select a desired setting from "ON" and "OFF." Use to set the amount of ventilation. • Select a desired setting from "Off," "Low," and "High." High power Use to reach the comfortable room temperature quickly. • Units can be operated in the High-power mode for up to 30 minutes.
Setting and display items Initial setting Service Setting details Display details Make the settings for the remote controller related items as necessary. Clock: The factory settings are "Yes" and "24h" format. Temperature: Set either Celsius (°C) or Fahrenheit (°F). Room temp. : Set Show or Hide. Auto mode: Set the Auto mode display or Only Auto display. Auto mode Whether or not to use the AUTO mode can be selected by using the button.
12-2-2. PAR-21MAA The setting of the following remote controller functions can be changed using the remote controller function selection mode. Change the setting when needed. Item 1 Item 2 1.Change language Language setting to display ("CHANGE LANGUAGE") 2.Function limit (1) Operation function limit setting (operation lock) ("LOCKING FUNCTION") ("FUNCTION SELECTION") (2) Use of automatic mode setting ("SELECT AUTO MODE") (3) Temperature range limit setting ("LIMIT TEMP FUNCTION") 3.
[Function selection flowchart] Setting language (English) Normal display (Display when the air conditioner is not running) Hold down the button and press the button for 2 seconds. Hold down the button and press the button for 2 seconds. Press the operation mode button. Press theTIMER MENU button. Press theTIMER ON/OFF button. Remote controller function selection mode Item 1 Change Language Item 2 English Dot display German Spanish TEMP.
13 MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER 13-1. HOW TO "MONITOR THE OPERATION DATA" 13-1-1. PAR-31MAA Details on the operation data including each thermistor temperature and error history can be confirmed with the remote controller. 1 Select "Service" from the Main menu, and press the button. Select "Check" with the F1 or F2 button, and press the Check menu Error history Refrigerant volume check Refrigerant leak check Smooth maintenance Request code Service menu: button.
13-1-2. PAR-21MAA • Turn on the [Monitoring the operation data] Example) Request code "004" Discharge temperature 69 Refrigerant address "00" (7) (3) (5) (1) (2) (6) (4) (1) Press the TEST A: Maintenance mode B: Refrigerant address C: Data display area D: Request code display area button for 3 seconds so that [ Maintenance mode] appears on the screen (at ). (2) Press the CHECK button for 3 seconds to switch to [Maintenance monitor].
13-2. REQUEST CODE LIST Request code * Certain indoor/outdoor combinations do not have the request code function; therefore, no request codes are displayed. Description Request content (Display range) Unit 0 Operation state Refer to 13-2-1. Detail Contents in Request Code.
Request code Description Request content (Display range) Unit 50 Indoor unit-Control state Refer to 13-2-1.Detail Contents in Request Code. – 51 Outdoor unit-Control state Refer to 13-2-1.Detail Contents in Request Code. – 52 Compressor-Frequency control state Refer to 13-2-1.Detail Contents in Request Code. – 53 Outdoor unit-Fan control state Refer to 13-2-1.Detail Contents in Request Code. – 54 Actuator output state Refer to 13-2-1.Detail Contents in Request Code.
Request code Description Request content (Display range) Unit 103 Error history 1 (latest) Displays error history. (" - - " is displayed if no history is present.) Code 104 Error history 2 (second to last) Displays error history. (" - - " is displayed if no history is present.) Code 105 Error history 3 (third to last) Displays error history. (" - - " is displayed if no history is present.
Request code Description Request content (Display range) Unit Remarks 153 154 155 Indoor-Fan operating time (After filter is reset) Indoor-Total operating time (Fan motor ON time) 0 – 9999 1 hour 0 – 9999 10 hours 156 157 Indoor fan output value (Sj value) 0 – 255 Fan control data – For indoor fan phase control "00 **" "**" indicates fan control data. – For indoor fan pulsation control "00 **" "**" indicates fan control data.
13-2-1.
[Fan control state] (Request code: 53 ) Data display 0 0 Fan step correction value by heatsink temperature overheat prevention control Fan step correction value by cool condensation temperature overheat prevention control Display - (minus) 0 1 2 Correction value –1 0 +1 +2 [Actuator output state] (Request code: 54 ) Data display 0 0 Actuator output state Actuator output state Actuator output state Display SV1 0 1 ON 2 3 ON 4 5 ON 6 7 ON 8 9 ON A b ON C d E F Actuator output state Four
[Contact demand capacity] (Request code: 61 ) Data display 0 0 Setting content 0 Setting content Display Setting value 0 1 2 3 0% 50% 75% 100% Setting SW7-1 SW7-2 ON ON ON ON Silent mode input Spare 1 input [External input state] (Request code: 62 ) Data display 0 0 Input state 0 Input state Display Contact demand input 0 1 2 3 4 5 6 7 8 9 A b C d E F [Outdoor unit - Capacity setting display] (Request code : 70 ) Data display 9 10 11 14 20 25 28 40 50 Capacity 35 50 60 71 100 125 140
[Outdoor unit switch setting display (SW1 to SW10, except SW3)] Request codes: 73 to 82 0: Switch OFF 1: Switch ON SW1, SW2, SW6, SW7 Data display 1 2 3 4 5 6 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
[Indoor unit – Model setting information] (Request code : 162) Data display 0 Display 0 See the table on the right.
14 EASY MAINTENANCE FUNCTION 14-1. SMOOTH MAINTENANCE 14-1-1. PAR-31MAA Maintenance data, such as the indoor/outdoor unit’s heat exchanger temperature and compressor operation current can be displayed with “Smooth maintenance”. * This cannot be executed during test operation. * Depending on the combination with the outdoor unit, this may not be supported by some models. Select "Service" from the Main menu, and press the 1 button. Select "Check" with the F1 or F2 button, and press the button.
14-1-2. PAR-21MAA L Reduces maintenance work drastically. L Enables you to check operation data of the indoor and outdoor units by remote controller. Furthermore, use of maintenance stable-operation control that fixes the operating frequency, allows smooth inspection, even for inverter models. Smooth Maintenance Function Discharge temperature 64 L Conventional inspection work L Outdoor unit L L Indoor unit L Measure the intake air temperature. Remove the service panel.
L Data measurement When the operation is stabilized, measure operation data as explained below. (4) Press the [TEMP] buttons ( and ) to select the desired refrigerant address. [Screen ] (5) Select the type of data to be displayed. After selecting, go to step (6).
14-3.
14-4. INITIAL SETTINGS FOR REFRIGERANT LEAKAGE DETECTION FUNCTION NRemote controller button position This air conditioner (Outdoor unit) can detect refrigerant leakage which may happen during a long period of use. In order to enable the leakage detection, the following settings are required to let the unit memorize the initial condition (initial refregerant amount).
3. How to start "Judgment of refrigerant leakage " mode. To know the current condition of refrigerant amount, same operation must be performed. Please repeat the same procedure ~ as when "Initial learning operation" for "Checking operation". Press . CLOCK button and select the [GAS LEAK JUDGE] Refrigerant leakage detection (initial teaching) Refrigerant leakage detection judgment GAS LEAK TEST START Press FILTER GAS LEAK JUDGE ( ) button to confirm.
15 DISASSEMBLY PROCEDURE PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP100VHA2R2 PUHZ-HRP71VHA2 PUHZ-HRP100VHA2 PUHZ-HRP71VHA2R1 PUHZ-HRP100VHA2R1 PHOTOS & ILLUSTRATION OPERATING PROCEDURE 1. Removing the service panel and top panel Figure 1 (PUHZ-HRP71/100VHA) (1) Remove the service panel fixing screws (3 for front, 5 × 12) Top panel fixing screws and slide the hook on the right downward to remove the service panel.
OPERATING PROCEDURE PHOTOS 4. Removing the thermistor (TH6) and thermistor (TH7) (1) Remove the service panel. (See Figure 1) (2) Remove the top panel. (See Figure 1) (3) Disconnect the connectors TH7/6 (red) on the controller circuit board in the electrical parts box. (4) Disconnect the lead wires from 2 fasteners and 1 edge cover on the outdoor controller board in the electrical parts box. (5) Loosen the clamp for the lead wire in the rear of the electrical parts box.
PHOTOS OPERATING PROCEDURE 7. Removing the 4-way valve coil (21S4), and linear expansion valve coil (LEV-A, LEV-B, LEV-C) (1) Remove the service panel. (See Figure 1) (2) Remove the top panel. (See Figure 1) (3) Remove the electrical parts box. (See Photo 3) [Removing the 4-way valve coil] (4) Remove 4-way valve coil fixing screw (M4 × 6). (5) Remove the 4-way valve coil by sliding the coil toward you.
OPERATING PROCEDURE PHOTOS 11. Removing bypass valve coil (SV) and bypass valve (Only for PUHZ-HRP·V/YHA, PUHZ-HRP·V/YHA2) (1) Remove the service panel. (See Figure 1) (2) Remove the top panel. (See Figure 1) (3) Remove the side panel (R) fixing screws (3 for rear, 5 × 12) in the rear of the unit and remove the side panel (R). (4) Remove the bypass valve solenoid coil fixing screw (M5 × 6). (5) Remove the bypass valve coil by sliding the coil upward.
OPERATING PROCEDURE PHOTOS 14. Removing the compressor (MC) (1) Remove the service panel. (See Figure 1) (2) Remove the top panel. (See Figure 1) (3) Remove the cover panel (front) fixing screws (2 for front, 5 × 12) and remove the cover panel (Front). (See Photo 13) (4) Remove the cover panel (rear) fixing screws (2 for rear, 5 × 12) and remove the cover panel (rear). (See Photo 13) (5) Remove the electrical parts box.
PUHZ-HRP100YHA PUHZ-HRP125YHA PUHZ-HRP100YHA2 PUHZ-HRP125YHA2 PUHZ-HRP100YHA2R1 PUHZ-HRP125YHA2R1 PHOTOS & ILLUSTRATION OPERATING PROCEDURE 1. Removing the service panel and top panel Figure 1 (PUHZ-HRP100/125YHA) (1) Remove the service panel fixing screws (3 for front, 5 × 12) Top panel fixing screws and slide the hook on the right downward to remove the service panel. (2) Remove the top panel fixing screws (3 for front, 3 for rear, 5 × 12) to detach the top panel.
PHOTOS & ILLUSTRATION OPERATING PROCEDURE 4. Disassembling the electrical parts box (1) Remove the service panel. (See Figure 1) (2) Remove the top panel. (See Figure 1) Photo 4 (3) Disconnect the indoor/outdoor connecting wire and power supply wire from the terminal block. (4) Disconnect all the connectors on the controller circuit board. (5) Disconnect the lead wires from 3 clamps on the separator.
PHOTOS OPERATING PROCEDURE 5. Removing the thermistor (TH6) Photo 9 and thermistor (TH7) Electrical parts box (1) Remove the service panel. (See Figure 1) (2) Remove the top panel. (See Figure 1) (3) Disconnect the connectors, TH7/6 (red) on the controller circuit board in the electrical parts box. (4) Disconnect the lead wires from 2 fasteners on the outdoor controller board in the electrical parts box. (5) Loosen the 2 wire clamps on top of the electrical parts box.
OPERATING PROCEDURE PHOTOS 8. Removing the 4-way valve coil (21S4), and linear expansion valve coil (LEV-A, LEV-B, LEV-C) (1) Remove the service panel. (See Figure 1) (2) Remove the top panel. (See Figure 1) (3) Remove the electrical parts box.
OPERATING PROCEDURE PHOTOS 12. Removing bypass valve coil (SV) and bypass valve (Only for PUHZ-HRP·V/YHA, PUHZ-HRP·V/YHA2) (1) Remove the service panel. (See Figure 1) (2) Remove the top panel. (See Figure 1) (3) Remove 3 right side panel fixing screws (5 × 12) in the rear of the unit and remove the right side panel. (4) Remove the bypass valve solenoid coil fixing screw (M5 ×6). (5) Remove the bypass valve coil by sliding the coil upward.
OPERATING PROCEDURE PHOTOS 14. Removing the reactors (ACL1, ACL2, ACL3) Photo 16 (1) Remove the service panel. (See Figure 1) (2) Remove the top panel. (See Figure 1) (3) Remove the 6 screws, that fix the front panel and remove the front panel. (4) Remove the 2 screws, screw 8 and 9 (both 4 × 10), that fix the separator, screw 8 from the valve bed and screw 9 from the bottom of the separator, and tilt the separator to the side of the fan motor slightly.
OPERATING PROCEDURE PHOTOS 15. Removing the compressor (MC) (1) Remove the service panel. (See Figure 1) (2) Remove the top panel. (See Figure 1) (3) Remove the cover panel (front) fixing screws (2 for front, 5 × 12) and remove the cover panel (front). (4) Remove the cover panel (rear) fixing screws (2 for rear, 5 × 12) and remove the cover panel (rear). (5) Remove the electrical parts box.
HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN CCopyright 2007 MITSUBISHI ELECTRIC CORPORATION Distributed in May 2013 No.OCH425 REVISED EDITION-F Distributed in Dec. 2012 No.OCH425 REVISED EDITION-E Distributed in Oct. 2011 No.OCH425 REVISED EDITION-D Distributed in May 2011 No.OCH425 REVISED EDITION-C Distributed in Dec. 2009 No.OCH425 REVISED EDITION-B PDF 7 Distributed in Sep. 2008 No.OCH425 REVISED EDITION-A PDF 7 Distributed in Oct. 2007 No.
