Page 1 SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS July 2014 No. OCH527 SERVICE MANUAL R410A REVISED EDITION-C Outdoor unit [Model Name] PUHZ-ZRP35VKA Revision: • Added PUHZ-ZRP50VKA PUHZ-ZRP35VKAR1, PUHZ-ZRP35VKAR1-ER, PUHZ-ZRP35VKAR1-ET, PUHZ-ZRP60VHA PUHZ-ZRP50VKAR1, PUHZ-ZRP50VKAR1-ER, PUHZ-ZRP71VHA PUHZ-ZRP50VKAR1-ET, PUHZ-ZRP60VHAR1, PUHZ-ZRP100VKA PUHZ-ZRP60VHAR1-ER, PUHZ-ZRP60VHAR1-ET, PUHZ-ZRP125VKA PUHZ-ZRP71VHAR1, PUHZ-ZRP71VHAR1-ER and PUHZ-ZRP140VKA PUHZ-ZRP71VHAR1-ET in REVISED EDITION-C. • Some descriptions have been PUHZ-ZRP100YKA modified. PUHZ-ZRP125YKA • Please void OCH527 REVISED EDITION-B.
Page 2 [Service Ref.] PUHZ-ZRP35VKA PUHZ-ZRP100VKA PUHZ-ZRP35VKAR1 PUHZ-ZRP125VKA PUHZ-ZRP35VKAR1-ER PUHZ-ZRP140VKA PUHZ-ZRP35VKAR1-ET PUHZ-ZRP100YKA PUHZ-ZRP50VKA PUHZ-ZRP100YKAR1 PUHZ-ZRP50VKAR1 PUHZ-ZRP125YKA PUHZ-ZRP50VKAR1-ER PUHZ-ZRP125YKAR1 PUHZ-ZRP50VKAR1-ET PUHZ-ZRP140YKA PUHZ-ZRP60VHA PUHZ-ZRP140YKAR1 PUHZ-ZRP60VHAR1 PUHZ-ZRP60VHAR1-ER PUHZ-ZRP60VHAR1-ET PUHZ-ZRP71VHA PUHZ-ZRP71VHAR1 PUHZ-ZRP71VHAR1-ER PUHZ-ZRP71VHAR1-ET TECHNICAL CHANGES Service ref. have been changed as follows. PUHZ-ZRP35VKA PUHZ-ZRP35VKAR1(-ER/-ET) PUHZ-ZRP50VKA PUHZ-ZRP50VKAR1(-ER/-ET) PUHZ-ZRP60VKA PUHZ-ZRP60VHAR1(-ER/-ET) PUHZ-ZRP71VKA...
Page 3 REFERENCE MANUAL INDOOR UNIT SERVICE MANUAL Service Model Name Service Ref. Manual No. OCH535 PLA-ZRP35/50/60/71/125/140BA PLA-ZRP35/50/60/71/125/140BAR1.UK OCB535 PLA-ZRP100BAR1 OCH529 PLA-ZRP100BA PLA-ZRP100BAR1-ER OCB529 PCA-RP35/100/125/140KAQR2 OCH491 PCA-RP35/50/60/71/100/125/140KAQ PCA-RP35/100/125/140KAQR2-ER OCB491 PCA-RP50/60/71KAQR1 PCA-RP71HAQ OCH492 PCA-RP71HAQ PCA-RP71HAQ-ER OCB492 PKA-RP35/50HALR1 OCH453 PKA-RP35/50HAL PKA-RP35/50HALR1-ER OCB453 PKA-RP60/71/100KALR1.TH OCH452 PKA-RP60/71/100KAL PKA-RP60/71/100KALR1.TH-ER OCB452 OCH528 PSA-RP71/100/125/140KA PSA-RP71/100/125/140KA...
Page 4 Use the following tools specifically designed for Make sure that the inside and outside of refrige- use with R410A refrigerant. rant piping is clean and it has no contaminants such as sulfur, oxides, dirt, shaving particles, etc, The following tools are necessary to use R410A refrigerant. which are hazard to refrigerant cycle.
Page 5 [3] Service tools Use the below service tools as exclusive tools for R410A refrigerant. Tool name Specifications Gauge manifold · Only for R410A · Use the existing fitting specifications . (UNF1/2) · Use high-tension side pressure of 5.3MPa·G or over. Charge hose · Only for R410A · Use pressure performance of 5.09MPa·G or over. Electronic scale — Gas leak detector · Use the detector for R134a, R407C or R410A. Adaptor for reverse flow check · Attach on vacuum pump. Refrigerant charge base — Refrigerant cylinder · Only for R410A · Top of cylinder (Pink) · Cylinder with syphon Refrigerant recovery equipment — [4] Refrigerant leakage detection function This air conditioner can detect refrigerant leakage which may happen during a long period of use. In order to enable the leakage detection, settings are required to let the unit memorize the initial conditions (initial learning). Refer to "14-2.
Page 6 (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. 1 Thickness of pipes Because the working pressure of R410A is higher compared to R22, be sure to use refrigerant piping with thickness shown below. (Never use pipes of 0.7 mm or below.) Diagram below: Piping diameter and thickness Thickness (mm) Nominal Outside diameter (mm) dimensions(inch) R410A 6.35 9.52 12.70 15.88 — 19.05 2 Dimensions of flare cutting and flare nut The component molecules in HFC refrigerant are smaller compared to conventional refrigerants. In addition to that, R410A is a refrigerant, which has higher risk of leakage because its working pressure is higher than that of other refriger- ants. Therefore, to enhance airtightness and intensity, flare cutting dimension of copper pipe for R410A has been speci- fied separately from the dimensions for other refrigerants as shown below. The dimension B of flare nut for R410A also has partly been changed to increase intensity as shown below. Set copper pipe correctly referring to copper pipe flaring dimensions for R410A below. For 1/2 and 5/8 inch, the dimension B changes. Use torque wrench corresponding to each dimension. Dimension A Dimension B Flare cutting dimensions...
Page 7 FEATURES PUHZ-ZRP35VKA PUHZ-ZRP60VHA PUHZ-ZRP35VKAR1 PUHZ-ZRP60VHAR1 PUHZ-ZRP35VKAR1-ER PUHZ-ZRP60VHAR1-ER PUHZ-ZRP35VKAR1-ET PUHZ-ZRP60VHAR1-ET PUHZ-ZRP50VKA PUHZ-ZRP71VHA PUHZ-ZRP50VKAR1 PUHZ-ZRP71VHAR1 PUHZ-ZRP50VKAR1-ER PUHZ-ZRP71VHAR1-ER PUHZ-ZRP50VKAR1-ET PUHZ-ZRP71VHAR1-ET PUHZ-ZRP100VKA PUHZ-ZRP125VKA PUHZ-ZRP140VKA PUHZ-ZRP100YKA PUHZ-ZRP100YKAR1 PUHZ-ZRP125YKA PUHZ-ZRP125YKAR1 PUHZ-ZRP140YKA PUHZ-ZRP140YKAR1 CHARGELESS SYSTEM PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT Maximum 30 m (PUHZ-ZRP35-140) The refrigerant circuit with LEV (Linear Expansion Valve) and power receiver always control the optimal refrigerant level regardless of the length (30 m max. and 5 m min.) of piping. The additional refrigerant charging work during installation often causes problems. It is completely eliminated by chargeless system. This unique system improves the quality and reli-...
Page 8 SPECIFICATIONS Service Ref. PUHZ-ZRP35VKA PUHZ-ZRP50VKA PUHZ-ZRP35VKAR1(-ER/-ET) PUHZ-ZRP50VKAR1(-ER/-ET) Mode Cooling Heating Cooling Heating Single, 50Hz, 230V Power supply (phase, cycle, voltage) Max. current Munsell 3Y 7.8/1.1 External finish Linear Expansion Valve Refrigerant control Hermetic Compressor SNB092FGCM SNB130FGCM2 Model Motor output Starter type Inverter Protection devices HP switch...
Page 9 PUHZ-ZRP100VKA PUHZ-ZRP125VKA PUHZ-ZRP140VKA Service Ref. Cooling Heating Cooling Heating Cooling Heating Mode Power supply (phase, cycle, voltage) Single 50Hz, 230V Max. current 26.5 Munsell 3Y 7.8/1.1 External finish Refrigerant control Linear Expansion Valve Hermetic Compressor Model ANB33FNFMT Motor output Inverter Starter type Protection devices HP switch...
Page 10 DATA 6-1. REFILLING REFRIGERANT CHARGE (R410A: kg) PUHZ-ZRP35-140 Piping length (one way) Initial Service Ref. 10 m 20 m 30 m 40 m 50 m 60 m 75 m charged PUHZ-ZRP35VKA PUHZ-ZRP35VKAR1 — — PUHZ-ZRP35VKAR1-ER PUHZ-ZRP35VKAR1-ET PUHZ-ZRP50VKA PUHZ-ZRP50VKAR1 — — PUHZ-ZRP50VKAR1-ER PUHZ-ZRP50VKAR1-ET PUHZ-ZRP60VHA PUHZ-ZRP60VHAR1 — — PUHZ-ZRP60VHAR1-ER PUHZ-ZRP60VHAR1-ET PUHZ-ZRP71VHA PUHZ-ZRP71VHAR1 —...
Page 11 MICROPHONE 6-3. NOISE CRITERION CURVES UNIT 1.5m GROUND PUHZ-ZRP35VKA PUHZ-ZRP60VHA PUHZ-ZRP35VKAR1(-ER/-ET) PUHZ-ZRP60VHAR1(-ER/-ET) SPL(dB) SPL(dB) MODE LINE MODE LINE PUHZ-ZRP71VHA PUHZ-ZRP50VKA COOLING COOLING PUHZ-ZRP71VHAR1(-ER/-ET) PUHZ-ZRP50VKAR1(-ER/-ET) HEATING HEATING NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 APPROXIMATE THRESHOLD OF APPROXIMATE HEARING FOR NC-20 THRESHOLD OF...
Page 12 6-4. STANDARD OPERATION DATA PLA-ZRP35BA PLA-ZRP50BA PLA-ZRP60BA PLA-ZRP71BA Representative matching Mode Cooling Heating Cooling Heating Cooling Heating Cooling Heating Capacity 3,600 4,100 5,000 6,000 6,100 7,000 7,100 8,000 Input 0.79 0.86 1.43 1.57 1.78 2.04 1.77 1.99 Indoor unit PLA-ZRP35BA PLA-ZRP50BA PLA-ZRP60BA PLA-ZRP71BA...
Page 13 PLA-ZRP100BA PLA-ZRP140BA PLA-ZRP125BA Representative matching Mode Cooling Heating Cooling Heating Cooling Heating Capacity 10,000 11,200 12,500 14,000 13,400 16,000 Input 2.60 2.61 3.87 3.67 4.37 4.70 Indoor unit PLA-ZRP100BA PLA-ZRP125BA PLA-ZRP140BA Phase , Hz 1 , 50 1 , 50 1 , 50 Voltage Current...
Page 14 OUTLINES AND DIMENSIONS PUHZ-ZRP35VKA PUHZ-ZRP50VKA Unit: mm PUHZ-ZRP35VKAR1 PUHZ-ZRP50VKAR1 PUHZ-ZRP35VKAR1-ER PUHZ-ZRP50VKAR1-ER PUHZ-ZRP35VKAR1-ET PUHZ-ZRP50VKAR1-ET OCH527C...
Page 15 PUHZ-ZRP60VKA PUHZ-ZRP71VHA Unit: mm PUHZ-ZRP60VHAR1 PUHZ-ZRP71VHAR1 PUHZ-ZRP60VHAR1-ER PUHZ-ZRP71VHAR1-ER PUHZ-ZRP60VHAR1-ET PUHZ-ZRP71VHAR1-ET OCH527C...
Page 16 PUHZ-ZRP100VKA Unit: mm PUHZ-ZRP125VKA Unit : mm PUHZ-ZRP140VKA PUHZ-ZRP100YKA PUHZ-ZRP100YKAR1 PUHZ-ZRP125YKA PUHZ-ZRP125YKAR1 PUHZ-ZRP140YKA PUHZ-ZRP140YKAR1 OCH527C...
Page 17 WIRING DIAGRAM PUHZ-ZRP35VKA PUHZ-ZRP50VKA PUHZ-ZRP35,50VKA WIRING DIAGRAM PUHZ-ZRP35VKAR1 PUHZ-ZRP50VKAR1 PUHZ-ZRP35VKAR1-ER PUHZ-ZRP50VKAR1-ER PUHZ-ZRP35VKAR1-ET PUHZ-ZRP50VKAR1-ET SYMBOL NAME SYMBOL NAME Terminal Block < Power Supply, Indoor/Outdoor> F1, F2 Fuse <10A > Motor for Compressor F3, F4 Fuse <3.15A > Fan Motor Relay 21S4 Solenoid Valve (Four-Way Valve) Resistor High Pressure Switch...
Page 18 PUHZ-ZRP60VHA PUHZ-ZRP71VHA PUHZ-ZRP60VHAR1 PUHZ-ZRP71VHAR1 PUHZ-ZRP60,71VHA WIRING DIAGRAM PUHZ-ZRP60VHAR1-ER PUHZ-ZRP71VHAR1-ER PUHZ-ZRP60VHAR1-ET PUHZ-ZRP71VHAR1-ET SYMBOL NAME SYMBOL NAME SYMBOL NAME Terminal Block <Power Supply, Indoor/Outdoor> Converter F1~4 Fuse <T6.3AL250V> Motor for Compressor CB1~CB3 Main Smoothing Capacitor Switch <Pump Down> CN31 Connector <Emergency Operation> Fan Motor N.F.
Page 19 PUHZ-ZRP100,125,140VKA WIRING DIAGRAM PUHZ-ZRP100VKA PUHZ-ZRP125VKA PUHZ-ZRP140VKA SYMBOL NAME SYMBOL NAME SYMBOL NAME Terminal Block <Power Supply, Indoor/Outdoor > Connection Terminal < L-Phase > CN31 Connector <Emergency Operation> Motor for Compressor Connection Terminal < N-Phase > CN3S Connector <Connection for Option> MF1, MF2 Fan Motor Connection Terminal...
Page 20 PUHZ-ZRP100, 125, 140YKA WIRING DIAGRAM PUHZ-ZRP100YKA PUHZ-ZRP125YKA PUHZ-ZRP140YKA SYMBOL NAME SYMBOL NAME SYMBOL NAME Terminal Block <Power Supply> TB-N Connection Terminal Switch <Function Setup> Terminal Block <Indoor/Outdoor> X52CA 52C Relay Switch <Function Setup> Motor for Compressor N.F. Noise Filter Circuit Board Switch MF1, MF2 Fan Motor...
Page 21 PUHZ-ZRP100, 125, 140YKA WIRING DIAGRAM PUHZ-ZRP100YKAR1 PUHZ-ZRP125YKAR1 PUHZ-ZRP140YKAR1 SYMBOL NAME SYMBOL NAME SYMBOL NAME Terminal Block <Power Supply> TB-L1/L2/L3 Switch < Model Select> Connection Terminal < L1/L2/L3-Power Supply> Terminal Block <Indoor/Outdoor > TB-N Switch < Function Setup> Connection Terminal Motor for Compressor X52CA/B 52C Relay Switch <...
Page 22 WIRING SPECIFICATIONS 9-1. FIELD ELECTRICAL WIRING (power wiring specifications) Outdoor unit model ZRP35/50V ZRP60/70V ZRP100/125V ZRP140V ZRP100, 125, 140Y ~/N (single), ~/N (single), ~/N (single), ~/N (single), 3N~ (3 ph 4-wires), Outdoor unit power supply 50 Hz, 230 V 50 Hz, 230 V 50 Hz, 230 V 50 Hz, 230 V 50 Hz, 400 V Outdoor unit input capacity main switch (Breaker) *1 16 A 25 A 32 A 40 A 16 A Outdoor unit power supply 3 × Min. 1.5 3 × Min. 2.5 3 × Min. 4 3 × Min. 6 5 × Min. 1.5 Indoor unit-Outdoor unit 3 × 1.5 (Polar) 3 × 1.5 (Polar) 3 × 1.5 (Polar)
Page 23 9-2. SEPARATE INDOOR UNIT/ OUTDOOR UNIT POWER SUPPLIES The following illustration show available connection patterns. The outdoor unit power supply patterns vary on models. 1:1 System <For models without heater> A Outdoor unit power supply The optional indoor power supply terminal kit is required. B Earth leakage breaker C Wiring circuit breaker or isolating switch D Outdoor unit...
Page 24 9-3. INDOOR – OUTDOOR CONNECTING CABLE The cable shall not be lighter than design 60245 IEC or 60227 IEC. Wire No. o Size (mm²) Outdoor power supply Max. 45 m Max. 50 m Max. 80 m Indoor unit-Outdoor unit 3 o 1.5 (polar) 3 o 2.5 (polar) 3 o 2.5 (polar) and S3 separated Indoor unit-Outdoor unit earth...
Page 25 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 220–240 V power supply. If it is connected, electronic parts on M-NET P.C. board may burn out. (3) Use 2-core × 1.25mm² shield wire (CVVS, CPEVS) for the transmission wire. Transmission signals may not be sent or received normally if different types of transmission wires are put together in the same multi-conductor cable. Never do this because this may cause a malfunction. Refrigerant Refrigerant Refrigerant Centralized address 00 address 00 address 00 controller M-NET M-NET M-NET address 01 address 02 address 03 Power supply unit A-control A-control A-control remote remote...
Page 26 M-NET wiring (1) Use 2-core × 1.25mm² shield wire for electric wires. M-NET terminal (Excluding the case connecting to system controller.) Earth block wire (2) Connect the wire to the M-NET terminal block. Connect one core of the transmission wire (non-polar) to A terminal and the other to B. Peel the shield wire, twist the shield part to a string and connect it to S terminal. Transmission Shield (3) In the system which several outdoor units are being connected, the terminal (A, B, wire part S) on M-NET terminal block should be individually wired to the other outdoor unit’s terminal, i.e. A to A, B to B and S to S. In this case, choose one of those outdoor units and drive a screw to fix an earth wire on the plate as shown on the right figure. 9-4-1. M-NET address setting In A-control models, M-NET address and refrigerant address should be set only for the outdoor unit. Similar to CITY MULTI system, there is no need to set the address of outdoor unit and remote controller. To construct a central control system, the setting of M-NET address should be conducted only upon the outdoor unit. The setting range should be 1 to 50 (the same as that of the indoor unit in CITY MULTI system), and the address number should be consecutively set in a same group. <Setting example> M-NET Address No. Address number can be set by using rotary switches SW11 (SW11 for 1st digit and SW12 for 2nd digit), which Switch is located on the M-NET board of outdoor unit. digit setting (Initial setting: all addresses are set to “0”.) SW12 digit...
Page 27 REFRIGERANT SYSTEM DIAGRAM PUHZ-ZRP35VKA PUHZ-ZRP50VKA Unit: mm (in) PUHZ-ZRP35VKAR1 PUHZ-ZRP50VKAR1 PUHZ-ZRP35VKAR1-ER PUHZ-ZRP50VKAR1-ER PUHZ-ZRP35VKAR1-ET PUHZ-ZRP50VKAR1-ET Thermistor TH7 Heat exchanger (Outdoor) Stop valve Charge plug Thermistor TH6 (with service port) Solenoid valve (Outdoor 2-phase pipe) (Four-way valve) Refrigerant GAS pipe connection(1/2F) Strainer Thermistor TH3 (Outdoor pipe) Muffler...
Page 28 PUHZ-ZRP100VKA PUHZ-ZRP125VKA Unit: mm (in) PUHZ-ZRP100YKA PUHZ-ZRP125YKA PUHZ-ZRP100YKAR1 PUHZ-ZRP125YKAR1 Thermistor TH7 (Outdoor) Heat exchanger Thermistor TH6 (Outdoor 2-phase pipe) Ball valve 4-way valve Strainer Refrigerant GAS pipe connection(5/8) Charge plug Thermistor TH3 (High pressure) Muffler (Outdoor pipe) Charge plug (Low pressure) Distributor High pressure switch 63H...
Page 29 10-1. REFRIGERANT COLLECTING (PUMP DOWN) When relocating or disposing of the indoor/outdoor unit, pump down the system following the procedure below so that no refriger- ant is released into the atmosphere. 1 Turn off the power supply (circuit breaker). 2 Connect the low-pressure valve on the gauge manifold to the charge plug (lowpressure side) on the outdoor unit. 3 Close the liquid stop valve completely. 4 Supply power (circuit breaker). • When power is supplied, make sure that “CENTRALLY CONTROLLED” is not displayed on the remote controller. If “CEN- TRALLY CONTROLLED” is displayed, the refrigerant collecting (pump down) cannot be completed normally. • Start-up of the indoor-outdoor communication takes about 3 minutes after the power (circuit breaker) is turned on. Start the pump-down operation 3 to 4 minutes after the power (circuit breaker) is turned on. 5 Perform the refrigerant collecting operation (cooling test run). • P ush the pump-down SWP switch (push-button type) on the control board of the outdoor unit. The compressor and ventilators (indoor and outdoor units) start operating (refrigerant collecting operation begins). (LED1 and LED2 on the control board of the outdoor unit are lit.) • O nly push the pump-down SWP switch if the unit is stopped. However, even if the unit is stopped and the pump-down SWP switch is pushed less than 3 minutes after the compressor stops, the refrigerant collecting operation cannot be performed. Wait until the compressor has been stopped for 3 minutes and then push the pump-down SWP switch again. 6 F ully close the ball valve on the gas pipe side of the outdoor unit when the pressure gauge on the gauge manifold shows 0.05 to 0 MPa [Gauge] (approx. 0.5 to 0 kgf/cm²) and quickly stop the air conditioner. • Because the unit automatically stops in about 3 minutes when the refrigerant collecting operation is completed (LED1 off, LED2 lit), be sure to quickly close the gas ball valve. However, if LED1 is lit, LED2 is off, and the unit is stopped, open the liquid stop valve completely, close the valve completely after 3 minutes or more have passed, and then repeat step 5. (Open the gas ball valve completely.) • I f the refrigerant collecting operation has been completed normally (LED1 off, LED2 lit), the unit will remain stopped until the power supply is turned off.
Page 30 TROUBLESHOOTING 11-1. 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 and control 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. Check the contents below before investigating details. Unit conditions at service Check code Actions to be taken for service (summary) Judge what is wrong and take a corrective action according Displayed to “11-4.
Page 31 11-2-2. Test run for wired remote controller <PAR-30MAA> <PAR-31MAA> MENU RETURN SELECT ON/OFF Function buttons Select "Service" from the Main menu, and press the button. Test run Input maintenance info. Function setting Check Self check Select "Test run" with the F1 or F2 button, and press the button. Select "Test run" with the F1 or F2 button, and press the button. Test run menu Test run Drain pump test run Service menu:...
Page 32 <Error information> When an error occurs, the following screen will appear. Check the error status, stop the operation, and consult your dealer. C heck code, error unit, refrigerant address, unit model name, and serial Error information number will appear. Error code The model name and serial number will appear only if the information have Error unit Ref.
Page 33 <Checking the error information> While no errors are occurring, page 2/2 of the error information can be viewed by Main Main menu selecting "Error information" from the Main menu. Restriction Energy saving Errors cannot be reset from this screen. Night setback Filter information Error information Main display: Cursor Page blinks <Error history> S elect "Service" from the Main menu, and press the button. Test run Input maintenance info. Function setting Check Self check Select "Check" with the F1 or F2 button, and press the button.
Page 34 11-2-3. Test run for wired remote controller <PAR-21MAA> Operating procedures While the room temperature display on the remote "TEST RUN" and the currently selected controller is “PLEASE WAIT”, the remote controller is disabled. operation mode are displayed alternately. Wait until “PLEASE WAIT” disappears before using remote controller. 1.
Page 35 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". TEST RUN 1 Turn on the main power to the unit. TEST RUN 2 Press the button twice continuously. (Start this operation from the status of remote controller display turned off.) A and current operation mode are displayed. TEST RUN ON/OFF TEMP MODE 3 Press the ( ) button to activate mode, then COOL check whether cool air blows out from the unit. MODE 4 Press the ( ) button to activate mode, then HEAT check whether warm air blows out from the unit. AUTO STOP 5 Press the button and check whether strong air blows out AUTO START MODE VANE from the unit. VANE 6 Press the button and check whether the auto vane operates CHECK LOUVER properly.
Page 36 11-3. HOW TO PROCEED "SELF-DIAGNOSIS" 11-3-1. Self-diagnosis <PAR-30MAA> <PAR-31MAA> S elect "Service" from the Main menu, and press the button. Test run Input maintenance info. Function setting Check Select "Self check" with the F1 or F2 button, and press the button. Self check W ith the F1 or F2 button, enter the refrigerant address, and press the button. Ref. address C heck code, unit number, attribute will appear. "-" will appear if no error history is available. Ref.
Page 37 11-3-2. Remote controller check <PAR-30MAA> <PAR-31MAA> If operations cannot be completed with the remote controller, diagnose the remote controller with this function. S elect "Service" from the Main menu, and press the button. Maintenance password Remote controller check Select "Remote controller check" with the F1 or F2 button, and press the button. S elect "Remote controller check" from the Service menu, and press the but- Remote controller check ton to start the remote controller check and see the check results. Start checking? To cancel the remote controller check and exit the "Remote controller check" menu screen, press the or the button.
Page 38 11-3-3. Self-diagnosis <PAR-21MAA> When a problem occurs to 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 check code and unit number are displayed alternately as shown below.
Page 39 When the error history is reset, the display will look like the one shown below. in the picture in the previous page) twice Press the ON/OFF button ( However, if you fail to reset the error history, the error content will be displayed again. within 3 seconds.
Page 40 11-3-6. Self-diagnosis <Wireless remote controller> <In case of trouble during operation, except for SLZ model> 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. Press the CHECK button twice. • "CHECK" lights, and refrigerant address Refrigerant "00" flashes. address • Check that the remote controller's display CHECK display has stopped before continuing. CHECK display 2. Press the temperature • Select the refrigerant address of the buttons. Temperature indoor unit for the self-diagnosis. button Note: Set refrigerant address using the TEMP...
Page 41 • 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 42 11-4. SELF-DIAGNOSIS ACTION TABLE <Abnormalities detected when the power is put on> Note: Refer to indoor unit section for code P and code E. Abnormal points and detection method Judgment and action Check Code Case 1 No voltage is supplied to termi- 1 Check following items. nal block (TB1) of outdoor unit. a) Power supply breaker is a) Power supply breaker turned off. b) Contact failure or disconnec- b) Connection of power supply terminal tion of power supply terminal block. (TB1) c) Open phase (L, L2 or N phase) c) Connection of power supply terminal block. (TB1) 2 Electric power is not supplied 2 Check following items. to power supply terminal of out- door power circuit board.
Page 43 Abnormal points and detection method Case Judgment and action Check Code Miswiring of indoor/outdoor unit 1 Check disconnection or looseness or polarity 1 Contact failure or miswiring of indoor/outdoor unit connecting of indoor/outdoor unit connecting wire of connecting wire wire indoor and outdoor units. 1. Outdoor controller circuit board can automatically check the number of 2 Diameter or length of indoor/ outdoor unit connecting wire is connected indoor units. Abnormal if the 2 Check diameter and length of indoor/outdoor out of specified capacity. unit connecting wire. number cannot be checked automatically Total wiring length: 80 m due to miswiring of indoor/outdoor unit 3 Excessive number of indoor units are connected to 1 out- (including wiring connecting each indoor unit connecting wire and etc. after power is door unit. (4 units or more) and between indoor and outdoor unit) turned on for 4 minutes.
Page 44 <Abnormalities detected while unit is operating> Abnormal points and detection method Judgment and action Check Code Case High pressure (High-pressure switch 1–6 C heck indoor unit and repair defect. 1 Short cycle of indoor unit 63H operated) 2 Clogged filter of indoor unit Abnormal if high-pressure switch 63H 3 Decreased airflow caused by dirt of indoor fan (4.15MPa) operated during compressor operation. 4 Dirt of indoor heat exchanger 5 Locked indoor fan motor 6 Malfunction of indoor fan motor 7 Defective operation of stop 7 Check if stop valve is fully open. valve (Not full open) 8 Clogged or broken pipe 8 Check piping and repair defect.
Page 45 Check Code Abnormal points and detection method Judgment and action Case Open/short of outdoor unit thermistors 1 Disconnection or contact failure 1 Check connection of connector (TH3,TH6/TH7) (TH3, TH6, TH7, and TH8) of connectors on the outdoor controller circuit board. Abnormal if open or short is detected during Outdoor controller circuit Check connection of connector (CN3) on the compressor operation. board: TH3, TH6/TH7 outdoor power circuit board. Open detection of thermistors TH3 and TH6 Outdoor power circuit board: Check breaking of the lead wire for thermistor is inoperative for 10 seconds to 10 minutes (TH3,TH6,TH7,TH8). Refer to "11-9. TEST POINT DIAGRAM". after compressor starting and 10 minutes 2 Defective thermistor 2 Check resistance value of thermistor after and during defrosting. (TH3,TH6,TH7,TH8) or check temperature by 3 Defective outdoor controller Note: C heck which unit has abnormality...
Page 46 Abnormal point and detection method Judgment and action Check Code Case To find out the detail history (latest) about U9 error, turn ON SW2-1, 2-2 and 2-6. Detailed codes Refer to "11-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS". Overvoltage error 1 A bnormal increase in power source 1 C heck the field facility for the power supply. 2 C orrect the wiring (U . V . W phase) to • Increase in DC bus voltage to voltage ZRP35/50VKA: 400 V compressor. Refer to "11-9. TEST 2 D isconnection of compressor wiring ZRP60/71VHA: 420 V POINT DIAGRAM". (Outdoor power cir- ZRP100-140VKA: 400 V cuit board).
Page 47 From the previous page. Abnormal point and detection method Judgment and action Check Code Case PFC/Q1 error (Overvoltage/ 1 A bnormal increase in power 12 C heck the field facility for the power Detailed codes Undervoltage/Overcurrent) source voltage supply. 3 C orrect the wiring (U . V . W phase) • I ncrease of DC bus voltage to 2 D ecrease in power source 35/50VKA: 400V voltage, instantaneous stop to compressor. Refer to "11-9. TEST 60/71VHA: 420V...
Page 48 Abnormal points and detection method Case Judgment and action Check Code Low pressure 1 Stop valve of outdoor unit is 1 Check stop valve. Abnormal if the following conditions are closed during operation. detected for continuously 3 minutes after 2 Leakage or shortage of 2 Check intake superheat. compressor starts heating operating for 10 refrigerant Check leakage of refrigerant. minutes. Check additional refrigerant. 1. Heating mode Detection mode 1 3 Malfunction of linear expansion 3 Check linear expansion valve. TH7−TH3 [ 4°C and valve Refer to "11-6. HOW TO CHECK THE TH5−Indoor room temperature [ 2°C PARTS". 4 Clogging with foreign objects in Detection mode 2 refrigerant circuit 4 After recovering refrigerant, remove water TH7−TH3 [ 2°C and Note: from entire refrigerant circuit under vacuum TH5−Indoor room temperature [ 4°C and...
Page 49 Check Code Abnormal points and detection method Judgment and action Case Remote controller control board 1 Defective remote controller 1 Replace remote controller. 1 Abnormal if data cannot be normally read from the nonvolatile memory of the remote controller control board. (Check code: E1) 2 Abnormal if the clock function of remote controller cannot be normally operated. (Check code: E2) Remote controller transmission error (E3)/signal receiving error (E5) 1 2 remote controller are set as 1 Set a remote controller to main, and the “main.” other to sub. 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. 2 Remote controller is connected 2 Remote controller is connected with only one (Check code: E3)
Page 50 Check Code Abnormal points and detection method Judgment and action Case Indoor/outdoor unit communication 1 Indoor/ outdoor unit connecting 1 Check disconnection or looseness of indoor/ error (Transmitting error) (Outdoor unit) wire has contact failure. outdoor unit connecting wire. 2–4 Turn the power off, and on again to 1 Abnormal if “0” receiving is detected 30 2 Defective communication circuit times continuously though outdoor con- of outdoor controller circuit board check. Replace outdoor controller circuit (6841) troller circuit board has transmitted “1”. board if abnormality is displayed again. 3 Noise has entered power supply. 2 Abnormal if outdoor controller circuit 4 Noise has entered indoor/ out- board could not find blank of transmission door unit connecting wire. path for 3 minutes. Non defined check code 1 Noise has entered transmission 12 Turn the power off, and on again to check.
Page 51 Check Code Abnormal points and detection method Judgment and action Case Abnormal refrigerant circuit 1 When this error occurs, be sure to 1 Abnormal operation of 4-way D uring Cooling, Dry, or Auto Cooling replace the 4-way valve. valve operation, the following conditions are 2 Check refrigerant pipes for disconnection or 2 Disconnection of or leakage in regarded as failures when detected for 1 leakage. refrigerant pipes second. 3 After the recovery of refrigerant, vacuum 3 Air into refrigerant piping a) T he compressor continues to run for 30 dry the whole refrigerant circuit.
Page 52 Check Code Abnormal points and detection method Case Judgment and action NO ACK signal Common factor that has no Always try the following when the error relation with abnormality source 1. Transmitting side controller detects “A7” occurs. abnormal if a message was transmitted 1 The unit of former address does not exist as address but there is no reply (ACK) that a 1 Turn off the power supply of outdoor switch has changed while the message was received. Transmitting unit, indoor unit and FRESH MASTER or unit was energized. side detects abnormality every 30 LOSSNAY at the same time for 2 minutes 2 Extinction of transmission wire seconds, 6 times continuously. or more, and turn the power on again. If voltage and signal is caused Note: The address and attribute displayed malfunction was accidental, the unit returns...
Page 53 From the previous page. Check Code Abnormal points and detection method Case Judgment and action 4. If displayed address or attribute is Same as mentioned in “A7” of the previous 1 During group operation with indoor unit of multi- refrigerant remote controller, indoor unit detects page. system, if indoor unit transmits abnormality when indoor unit transmits signal to remote controller signal to remote controller and there while outdoor unit power sup- was no reply (ACK). ply of one refrigerant system is turned off or within 2 min- utes of restart, abnormality is detected. 2 Contact failure of transmission wire of remote controller or indoor unit 3 Disconnection of transmission connector (CN2M) of indoor unit 4 Defective transmitting receiving circuit of indoor unit or remote...
Page 54 Check Code Abnormal points and detection method Case Judgment and action M-NET NO RESPONSE 1 Transmitting condition is 1 Check transmission waveform or noise on Abnormal if a message was transmitted repeated fault because of transmission wire. and there are reply (ACK) that message noise and the like. 2 Turn off the power supply of outdoor unit was received, but response command and indoor unit and FRESH MASTER or 2 Extinction of transmission wire does not return. Transmitting side detects voltage and signal is caused LOSSNAY at the same time for 2 minutes or abnormality every 30 seconds, 6 times by over-range transmission more, and turn the power on again. If mal- continuously. wire. function was accidental, the unit returns to • Maximum distance .. 200 m Note: The address and attribute displayed normal. If the same abnormality generates at remote controller indicate the con- • Remote controller line (12 m) again, controller of displayed address and troller that did not reply (ACK).
Page 55 Factor Phenomena Countermeasure 4. Even controlling by the wireless 1 T he pair number settings of the wireless remote 1 Check the pair number settings. remote controller, no beep is controller and indoor controller board are mismatched. heard and the unit does not start operating. Operation display is indicated on wireless remote controller. 5. When operating by the wireless 1 N o operation for 2 minutes at most after the power 1 Normal operation remote controller, beep sound is supply ON. heard, however, unit does not start 2 Local remote controller operation is prohibited. 2 Normal operation operating. • Remote controlling adaptor is connected to CN32 on the indoor controller board. • L ocal remote controller operation is prohibited by centralised controller etc. since it is connected to MELANS. 3 Phenomena of No.2. 3 Check the phenomena No.2. 6. Remote controller display works 1 • If refrigerant leaks, discharging 1 Refrigerant shortage normally and the unit performs temperature rises and LEV opening 2 Filter clogging cooling operation, however, the increases. Inspect leakage by checking...
Page 56 Symptoms: “PLEASE WAIT” is kept being displayed on the remote controller. Inspection method and Diagnosis flow Cause troubleshooting Check the display time of “PLEASE WAIT” after turning on the main power. 6 minutes 2 minutes or more or less How long is “PLEASE WAIT” •...
Page 57 LED display of the indoor controller board Symptoms: Nothing is displayed on the remote controller 1 LED1 : LED2 : LED3 : Inspection method and Diagnosis flow Cause 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.
Page 58 LED display of the indoor controller board Symptoms: Nothing is displayed on the remote controller 2 LED1 : LED2 : LED3 : Inspection method and Diagnosis flow Cause 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.
Page 59 LED display of the indoor controller board Symptoms: Nothing is displayed on the remote controller 3 LED1 : LED2 : LED3 : — Inspection method and Diagnosis flow Cause troubleshooting Check the voltage of the terminal block (TB6) of the remote controller. 10 to 16 V DC? •...
Page 60 • Before repair Frequent calling from customers Phone Calls From Customers How to Respond Note Unit does 1 The operating display of remote 1 Check if power is supplied to air conditioner. not operate controller does not come on. Nothing appears on the display unless power is at all.
Page 61 Phone Calls From Customers How to Respond Note The room cannot be cooled or heated sufficiently. 1 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.
Page 62 Phone Calls From Customers How to Respond Note Something 3 Air blows out for a while after However, this control is also 3 This is not a malfunction. is wrong HEAT operation is stopped. applied to the models which The blower is operating just for cooling down the with the heated-up air conditioner.
Page 63 Phone Calls From Customers How to Respond Note 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 Cooling;...
Page 64 11-6. HOW TO CHECK THE PARTS PUHZ-ZRP35VKA PUHZ-ZRP50VKA PUHZ-ZRP60VHA PUHZ-ZRP35VKAR1 PUHZ-ZRP50VKAR1 PUHZ-ZRP60VHAR1 PUHZ-ZRP35VKAR1-ER PUHZ-ZRP50VKAR1-ER PUHZ-ZRP60VHAR1-ER PUHZ-ZRP35VKAR1-ET PUHZ-ZRP50VKAR1-ET PUHZ-ZRP60VHAR1-ET PUHZ-ZRP71VHA PUHZ-ZRP71VHAR1 PUHZ-ZRP71VHAR1-ER PUHZ-ZRP71VHAR1-ET PUHZ-ZRP100VKA PUHZ-ZRP125VKA PUHZ-ZRP140VKA PUHZ-ZRP100YKA PUHZ-ZRP125YKA PUHZ-ZRP140YKA PUHZ-ZRP100YKAR1 PUHZ-ZRP125YKAR1 PUHZ-ZRP140YKAR1 Parts name Check points Thermistor (TH3) <Outdoor pipe> Disconnect the connector then measure the resistance with a tester. Thermistor (TH4) (At the ambient temperature 10 to 30°C) <Discharge>...
Page 65 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...
Page 66 11-7. HOW TO CHECK THE COMPONENTS <Thermistor feature chart> Low temperature thermistors • Thermistor <Outdoor pipe> (TH3) • Thermistor <Outdoor 2-phase pipe> (TH6) • Thermistor <Outdoor> (TH7) • Thermistor <Outdoor pipe> (TH33) Thermistor R0 = 15 k" ± 3% B constant = 3480 ± 2% – =15exp{3480( 273+t 0: 15 k" 30: 4.3 k" 10: 9.6 k" 40: 3.0 k" 20: 6.3 k" 25: 5.2 k" -20 -10 0 10 20 30 40 50 Temperature (:) Medium temperature thermistor • Thermistor <Heatsink> (TH8)
Page 67 (ZRP35–ZRP71) 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. <Connection between the outdoor controller board and the linear expansion valve> Outdoor controller board DC12V Drive circuit Blue Orange Yellow White Connector LEV-A LEV-B <Output pulse signal and the valve operation> Output Output (Phase) Opening a valve : 8 → 7 → 6 → 5 → 4 → 3 → 2 → 1 → 8 Closing a valve : 1 → 2 → 3 → 4 → 5 → 6 → 7 → 8 → 1 The output pulse shifts in above order. · When linear expansion valve operation stops, all output phases become OFF.
Page 68 (ZRP100–ZRP140) 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. <Connection between the outdoor controller board and the linear expansion valve> Outdoor controller board DC12V Gray Drive circuit Orange Yellow Black Connector LEV-A LEV-B LEV-C <Output pulse signal and the valve operation> Output Output (Phase) Opening a valve : 8 → 7 → 6 → 5 → 4 → 3 → 2 → 1 → 8 Closing a valve : 1 → 2 → 3 → 4 → 5 → 6 → 7 → 8 → 1 The output pulse shifts in above order. · When linear expansion valve operation stops, all output phases become OFF.
Page 69 (3) How to attach and detach the coil of linear expansion valve (ZRP35–ZRP71 ) <Composition> Linear expansion valve is separable into the main body and the coil as shown in the diagrams below. Main body Coil Lead wire Stopper <How to detach the coil> 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. <How to attach the coil> Hold the lower part of the main body (shown as A) firmly so that the main body does not move and attach the coil by inserting it downward into the main body. Then securely attach the coil stop- per to pipe B. (At this time, be careful that stress is not added to lead wire and main body is not wound by lead wire.) If the stop- per is not firmly attached to pipe B, coil may be detached from...
Page 70 (4) How to attach and detach the coil of linear expansion valve (ZRP100–ZRP140) <Composition> Linear expansion valve is separable into the main body and the coil as shown in the diagrams below. Main body Stopper Coil Lead wire <How to detach the coil> 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. <How to attach the coil> Hold the lower part of the main body (shown as A) firmly so that the main body does not move and attach the coil by inserting it downward into the main body. Then securely attach the coil stop- per to main body. (At this time, be careful that stress is not added Be sure to attach to lead wire and main body is not wound by lead wire.) If the the stopper.
Page 71 11-8. EMERGENCY OPERATION (1) When the check codes shown below are displayed on outdoor unit or microcomputer 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 opera- tion switch (SWE) on indoor controller board to ON and short-circuiting the connector (CN31) on outdoor controller board. ● When following abnormalities occur, emergency operation will be available. Check code Inspected content Open/short of outdoor unit thermistor (TH3/TH6/TH7/TH8) Indoor/outdoor unit communication error • Signal receiving error (Outdoor unit) Indoor/outdoor unit communication error • Transmitting error (Indoor unit) E0 ~ E7 Communication error other than outdoor unit Communication error between outdoor controller board and M-NET board (Serial communication error)
Page 72 (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) 20.5: — Indoor pipe temperature (TH2) — Indoor 2-phase pipe temperature (TH5) — Set temperature — Outdoor pipe temperature (TH3) (*1) Outdoor discharge pipe temperature (TH4) (*1) Outdoor 2-phase pipe temperature (TH6) (*1)
Page 73 Brief Check of POWER MODULE 11-9. TEST POINT DIAGRAM 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 Outdoor controller circuit board are short-circuited, it means that they are broken. PUHZ-ZRP35VKA 1. Check of Diode (DS1, DS2) PUHZ-ZRP35VKAR1 P - R , P - S , N - R , N - S PUHZ-ZRP35VKAR1-ER 2. Check of Q1 P - N PUHZ-ZRP35VKAR1-ET 3. Check of IPM PUHZ-ZRP50VKA P - N , P - U , P - V , P - W , N - U , N - V , N - W PUHZ-ZRP50VKAR1 P-N keeps being shirt-circuited until the smoothing condenser is charged by a tester. PUHZ-ZRP50VKAR1-ER Note: T he marks, P , N , R , S , U , V and W shown in the diagram PUHZ-ZRP50VKAR1-ET are not actually printed on the board. Note: PUHZ-ZRP35/50 checks solder side. Communication power supply <CAUTION> TEST POINT CNF11 is high voltage. D71 Voltage AC in (L, N) 24 V DC L N...
Page 74 Outdoor controller circuit board <CAUTION> TEST POINT1 is high voltage. PUHZ-ZRP60VHA PUHZ-ZRP71VHA PUHZ-ZRP60VHAR1 PUHZ-ZRP71VHAR1 PUHZ-ZRP60VHAR1-ER PUHZ-ZRP71VHAR1-ER PUHZ-ZRP60VHAR1-ET PUHZ-ZRP71VHAR1-ET PUHZ-ZRP100VKA PUHZ-ZRP125VKA PUHZ-ZRP140VKA PUHZ-ZRP100YKA PUHZ-ZRP125YKA PUHZ-ZRP140YKA PUHZ-ZRP100YKAR1 PUHZ-ZRP125YKAR1 PUHZ-ZRP140YKAR1 CN51 CNDM External signal output Forced defrost, 1–2: Input of low-level sound priority mode • Compressor operating signal detect history Demand control setting 1–3: Input of external contact point • Abnormal signal record reset, refrigerant address CN52C Connect to the noise filter Model select circuit board (CN52C) (ZRP60/71V)/ outdoor Test operation power circuit board (CN52C) (ZRP100–140V) Pump down...
Page 75 Outdoor noise filter circuit board PUHZ-ZRP60VHA PUHZ-ZRP71VHA PUHZ-ZRP60VHAR1 PUHZ-ZRP71VHAR1 PUHZ-ZRP60VHAR1-ER PUHZ-ZRP71VHAR1-ER PUHZ-ZRP60VHAR1-ET PUHZ-ZRP71VHAR1-ET EI, E2 Connect to the earth Connect to CNAC1, CNAC2 the earth 230 V AC (Connect to the outdoor control- ler circuit board (CNAC)) Primary current (Connect to the outdoor power circuit board (CN5)) CN52C 52C relay signal (Connect to the outdoor controller circuit board (CN52C)) LO, NO Voltage of 230 V AC is output. (Connect ACL) OCH527C...
Page 76 Outdoor noise filter circuit board PUHZ-ZRP100YKA PUHZ-ZRP100YKAR1 PUHZ-ZRP125YKA LI1, LI2, LI3, NI PUHZ-ZRP125YKAR1 POWER SUPPLY LI1-LI2/LI-LI3/LI3-LI1: 400 V AC input PUHZ-ZRP140YKA LI1-NI/LI2-NI/LI3-NI: 230 V AC input PUHZ-ZRP140YKAR1 (Connect to the terminal block (TB1)) Connect to the earth CNAC1, CNAC2 230 V AC (Connect to the outdoor controller Connect to the earth circuit board (CNAC)) CNDC (Connect to the outdoor controller circuit board (CNDC)) CNCT Primary current (Connect to the outdoor power circuit board (CN5)) LO1, LO2, LO3 POWER SUPPLY Connect to the outdoor Connect to the ACL4 LO1-LO2/LO2-LO3/LO3-LO1: 400 V AC OUTPUT converter circuit board (Connect to the outdoor converter circuit board (L1-IN), ACL2, ACL3) (N-IN) OCH527C...
Page 77 Outdoor power circuit board Brief Check of DIP-IPM and DIP-PFC PUHZ-ZRP60VHA 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 PUHZ-ZRP60VHAR1 are short-circuited, it means that they are broken. PUHZ-ZRP60VHAR1-ER 1. Check of DIP-IPM PUHZ-ZRP60VHAR1-ET P2 - U , P2 - V , P2 - W , N2 - U , N2 - V , N2 - W 2. Check of DIP-PFC PUHZ-ZRP71VHA P1 - L , P1 - N , L - N1 , N - N1 PUHZ-ZRP71VHAR1 Note: The marks, L , N , N1 , N2 , P1 , P2 , U , V and W PUHZ-ZRP71VHAR1-ER shown in the diagram are not actually printed on the board. PUHZ-ZRP71VHAR1-ET R, S U, V, W Connect to the ACL Connect to the compressor (MC) 230 V AC Voltage among phases: 5 to 180 V AC DIP-PFC LD1–LD2 280–380 V DC Connect to the outdoor Connect to the earth controller Only RP60/71 circuit board...
Page 78 Outdoor power circuit board Brief Check of POWER MODULE Usually, they are in a state of being short-circuited if they are broken. PUHZ-ZRP100VKA Measure the resistance in the following points (connectors, etc.). PUHZ-ZRP125VKA If they are short-circuited, it means that they are broken. 1. Check of POWER MODULE PUHZ-ZRP140VKA 1 Check of DIODE circuit R - L1 , S - L1 , R - N1 , S - N1 2 Check of IGBT circuit L2 - N1 3 Check of INVERTER circuit P - U , P - V , P - W , N1 - U , N1 - V , N1 - W Note: T he marks R , S , L1 , L2 , P , N1 , U , V and W shown in the diagram are not actually printed on the board. Connect to the outdoor controller circuit board (CN2) 1–5:Transmitting signal to outdoor controller circuit board (0–5 V DC) Connect to the outdoor 2–5: Zero cross signal (0–5 V DC) controller circuit board (CN4) 3–4: 18 V DC 6–5: 16 V DC 7–5: 16 V DC CN52C CNDC Connect to the smoothing 52C driving signal 280–380 V DC (1+, 3-) Power Connect to the outdoor Connect to the outdoor...
Page 79 Outdoor power circuit board Brief Check of POWER MODULE U sually, they are in a state of being short-circuited if they are broken. PUHZ-ZRP100YKA Measure the resistance in the following points (connectors, etc.). PUHZ-ZRP125YKA If they are short-circuited, it means that they are broken. 1. Check of DIODE MODULE PUHZ-ZRP140YKA L1 - P1 , L2 - P1 , L3 - P1 , L1 - N1 , L2 - N1 , L3 - N1 2. Check of DIP-IPM P2 - U , P2 - V , P2 - W , N2 - U , N2 - V , N2 - W Note: T he marks L1 , L2 , L3 , N1 , N2 , P1 , P2 , U , V and W shown in the diagram are not actually printed on the board. TB-U, TB-V, TB-W TB-N Connect to the compressor (MC) Connect to the CK capacitor Voltage among phases: 10–400 V AC Diode module DIP-IPM TAB connector on X52CA Connect to the RS resistor TB-L1, TB-L2, TB-L3 Connect to the outdoor Connect to the Detection of primary Connect to the converter circuit board outdoor converter...
Page 80 Outdoor power circuit board Brief Check of POWER MODULE Usually, they are in a state of being short-circuited if they are broken. PUHZ-ZRP100YKAR1 Measure the resistance in the following points (connectors, etc.). PUHZ-ZRP125YKAR1 If they are short-circuited, it means that they are broken. 1. Check of DIODE MODULE PUHZ-ZRP140YKAR1 L1 - P1 , L2 - P1 , L3 - P1 , L1 - N1 , L2 - N1 , L3 - N1 2. Check of DIP-IPM P2 - U , P2 - V , P2 - W , N2 - U , N2 - V , N2 - W Note: T he marks L1 , L2 , L3 , N1 , N2 , P1 , P2 , U , V and W shown in the diagram are not actually printed on the board. TB-U, TB-V, TB-W TB-N Connect to the compressor (MC) Connect to the CK capacitor Voltage among phases: 10–400 V AC Diode module DIP-IPM TAB connector on X52CA Connect to the RS resistor TB-L1, TB-L2, TB-L3 Connect to the outdoor converter circuit board (L1-OU, L2-OU, L3-OU)
Page 81 Outdoor converter circuit board PUHZ-ZRP100YKA PUHZ-ZRP100YKAR1 PUHZ-ZRP125YKA PUHZ-ZRP125YKAR1 PUHZ-ZRP140YKA PUHZ-ZRP140YKAR1 L1-A1 L1-IN, N-IN CK-OU Connect to the ACL1 Connect to the noise filter Connect to the CK capacitor circuit board (LO1, NO) Connect to the outdoor power circuit board (CN7) L1-A2, L2-A2, L3-A2 L1-OU, L2-OU, L3-OU Connect to the ACL1, ACL2, ACL3 Connect to the outdoor power circuit board (TB-L1, L2, L3) OCH527C...
Page 82 Outdoor M-NET board (optional) Switch for communication LED11 LED13 display between LED12 Outdoor unit Receiving CN2M M-NET and outdoor board Transmitting connecting display Connect to M-NET Serial communication with outdoor board LED2 Energizing display of M-NET board (5 V power supply) LED1 SW11 SW12 Power supply (5V/12V) input Energizing display M-NET address (1s digit) M-NET address of M-NET board (10s digit) 2 to 3 5 V DC Input 1, 2 : + (12 V power supply) 1 to 3 12 V DC Input 3 : – 11-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS (1) Function of switches The black square ( ) indicates a switch position.
Page 83 Action by the switch operation Type of Swich No. Function Effective timing Switch No function — — — Power failure Auto recovery No auto recovery When power supply ON automatic recovery *2 3,4,5 No function — — — Model select Following SW5-6 reference Mode select *3 Demand function Low noise mode Always No function — — — Max Hz setting (cooling) Max Hz (cooling) o 0.8 Normal Always Max Hz setting (heating) Max Hz (heating) o 0.8...
Page 84 (2) Function of connector Action by open/ short operation Types Connector Function Effective timing Short Open Connector CN31 Start When power supply ON Emergency operation Normal Special function (a) Low-level sound priority mode (Local wiring) By performing the following modification, operation noise of the outdoor unit can be reduced by about 3-4 dB. The low noise mode will be activated when a commercially available timer or the contact input of an ON/OFF switch is added to the CNDM connector (option) on the control board of the outdoor unit. • T he ability varies according to the outdoor temperature and conditions, etc. 1 C omplete the circuit as shown when using the external input adapter (PAC-SC36NA-E). (Option) 2 S W7-1 (Outdoor unit control board): OFF 3 S W1 ON: Low noise mode SW1 OFF: Normal operation...
Page 85 <Display function of inspection for outdoor unit> 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. [Display] (1)Normal condition Outdoor controller board A-Control Service Tool Unit condition LED1 (Green) LED2 (Red) Error code Indication of the display Lighted Lighted Alternately blinking display When the power is turned on When unit stops Lighted Not lighted...
Page 86 Indication Error Outdoor controller board Check Detailed Contents Inspection method code reference LED1 (Green) LED2 (Red) page 1Check if stop valves are open. 3 blinking 1 blinking Abnormality of shell thermistor(TH32) P.44 2Check if connectors (TH4, TH32, LEV-A, and LEV-B) on outdoor controller and discharging temperature (TH4) board are not disconnected.
Page 87 <Outdoor unit operation monitor function> [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 check code by controlling DIP SW2 on ‘A-Control Service Tool’. Operation indicator SW2 : Indicator change of self diagnosis SW2 setting Display detail Explanation for display Unit 2 3 4 5 6 <Digital indicator LED1 working details> (Be sure that the 1 to 6 in the SW2 are set to OFF.) (1) Display when the power supply ON 1 second When the power supply ON, blinking displays by turns.
Page 88 The black square ( ) indicates a switch position. SW2 setting Display detail Explanation for display Unit Pipe temperature / Liquid(TH3) −40 to 90 −40 to 90 (When the coil thermistor detects 0: or below, “−” and temperature are displayed by turns.) (Example) When −10:; 2 3 4 5 6 0.5 sec. 0.5sec. 2 sec. Discharge temperature (TH4) 3 to 217 3 to 217 (When the discharge thermistor detects 100: or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 105:; 2 3 4 5 6 0.5 sec. 0.5sec. 2 sec. Output step of outdoor FAN 0 to 10 0 to 10 Step 2 3 4 5 6 The number of ON / OFF times of com- 0 to 9999 pressor...
Page 89 The black square ( ) indicates a switch position. SW2 setting Display detail Explanation for display Unit Pipe temperature / Liquid (TH3) on error −40 to 90 occurring (When the coil thermistor detects 0: or below, “–” −40 to 90 and temperature are displayed by turns.) (Example) When −15:; 0.5 sec. 0.5sec. 2 sec. 2 3 4 5 6 Discharge temperature (TH4) on error 3 to 217 occurring (When the temperature is 100: or more, the 3 to 217 hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 130:; 2 3 4 5 6 0.5 sec. 0.5sec. 2 sec. Compressor operating current on error 0 to 50 occurring 0 to 50 2 3 4 5 6 Error history (1) (latest) When no error history, Alternate display of abnormal unit...
Page 90 The black square ( ) indicates a switch position. SW2 setting Display detail Explanation for display Unit 0 to 4 The number of connected indoor units (The number of connected indoor units are dis- played.) Unit 2 3 4 5 6 Capacity setting display Displayed as an outdoor capacity code. Capacity Code Capacity Code ZRP35V ZRP100V, 100Y Code ZRP50V ZRP125V, 125Y display ZRP60V ZRP140V, 140Y 2 3 4 5 6 ZRP71V Outdoor unit setting information • The tens digit (Total display for applied setting) Setting details Display details H·P / Cooling only...
Page 91 The black square ( ) indicates a switch position. SW2 setting Display detail Explanation for display Unit Indoor setting temperature 17 to 30 17 to 30 °C 2 3 4 5 6 Outdoor pipe temperature / 2-phase −39 to 88 (TH6) (When the temperature is 0: or less, “–” and °C −39 to 88 temperature are displayed by turns.) 2 3 4 5 6 Outdoor ambient temperature (TH7) −39 to 88 −39 to 88 (When the temperature is 0: or less, “–” and °C temperature are displayed by turns.) 2 3 4 5 6 Outdoor heatsink temperature (TH8) −40 to 200 −40 to 200 (When the temperature is 0: or less, “–” and temperature are displayed by turns.)
Page 92 The black square ( ) indicates a switch position. SW2 setting Display detail Explanation for display Unit 150 to 400 (RP35 to 140V) DC bus voltage 300 to 750 (RP100 to 140Y) 150 to 400 (ZRP35 to 140V) (When it is 100V or more, hundreds digit, tens 300 to 750 (ZRP100 to 140Y) digit and ones digit are displayed by turns.) 2 3 4 5 6 0 to 100 Capacity save (When the capacity is 100% hundreds digit, tens digit 0 to 100 and ones digit are displayed by turns.) When air conditioner is connected to (Example) When 100%; M-NET and capacity save mode is 0.5 sec. 0.5sec. 2 sec. demanded, a value from “0” to ”100” is displayed. 2 3 4 5 6 When there is no setting of capacity save, “100” is displayed. Error postponement code history (2) Postponement code display of outdoor unit Blinking: During postponement Code Lighting: Cancellation of postponement...
Page 93 The black square ( ) indicates a switch position. SW2 setting Display detail Explanation for display Unit 0 to 480 LEV-C opening pulse 0 to 480 (When it is 100 pulse or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 130 pulse; Pulse 0.5 sec. 0.5sec. 2 sec. 2 3 4 5 6 Indoor room temperature (TH1) on error 8 to 39 occurring 8 to 39 2 3 4 5 6 Indoor pipe temperature / Liquid (TH2) −39 to 88 on error occurring (When the temperature is 0°C or less, “–” and −39 to 88 temperature are displayed by turns.) (Example) When -15°C; 0.5 sec. 0.5sec. 2 sec. 2 3 4 5 6 Indoor pipe temperature / Cond./ Eva.
Page 94 The black square ( ) indicates a switch position. Explanation for display Unit SW2 setting Display detail 0 to 255 Discharge superheat on error occurring (When the temperature is 100°C or more, hundreds digit, tens digit and ones digit are displayed by 0 to 255 turns.) (Example) When 150°C; Cooling = TH4−TH6 Heating = TH4−TH5 0.5 sec. 0.5sec. 2 sec. 2 3 4 5 6 Sub cool on error occurring SC 0 to 130 0 to 130 (When the temperature is 100°C or more, hundreds digit, tens digit and ones digit are displayed by Cooling = TH6−TH3 turns.) Heating = TH5−TH2 (Example) When 115°C; 2 3 4 5 6 0.5 sec. 0.5sec. 2 sec. 0 to 999 Thermo-on time until error stops (When it is 100 minutes or more, hundreds digit, tens 0 to 999 digit and ones digit are displayed by turns.) (Example) When 415 minutes;...
Page 95 The black square ( ) indicates a switch position. SW2 setting Display detail Explanation for display Unit The following code will be a help to know the Controlling status of compressor operating status of unit. operating frequency • The tens digit Display Compressor operating frequency control Primary current control Secondary current control • The ones digit (In this digit, the total number of activated control is displayed.) Display Compressor operating frequency control Preventive control for excessive temp- erature rise of discharge temperature...
Page 96 FUNCTION SETTING 12-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER Each function can be set as necessary 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. <Table 1> Function selections (1) Functions available when setting the unit number to 00 (Select 00 referring to 4 setting the indoor unit number.) : Initial setting Function Settings Mode No. Setting No. Remarks (when sent from the factory) Power failure automatic recovery The setting is Indoor temperature Average data from each indoor unit applied to all detecting Data from the indoor unit with remote controller...
Page 97 (2) Functions 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 setting the indoor unit number of Operating Procedure. • When setting functions for a simultaneous- Twin Triple indoor unit system, set the unit number to 01 to 03 for each indoor unit in case of selecting different functions for each unit referring to 4 setting the indoor unit number of Operating Procedure. • When setting the same functions for an entire simultaneous Twin Triple-indoor unit system, set refrigerant address to AL (07 in case of wireless remote controller) referring to 4 setting the indoor unit number of Operating Procedure. : Initial setting ( Factory setting ) - : Not available Floor Mode Setting Ceiling suspended Wall mounted Function Settings 4-Way cassette standing SLZ-KA• PLA-BA PCA-KAQ PCA-HAQ PKA-HAL PKA-KAL PSA-KA VAL/VAQ Filter sign 100h 2500h No filter sign indicator...
Page 98 12-1-1. Selecting functions using the wired remote controller <PAR-30MAA> <PAR-31MAA> <Service menu> Maintenance password is required S elect "Service" from the Main menu, and press the button. Main Main menu Maintenance Initial setting *At the main display, the menu buttom and select "Service" to make the Service maintenance setting. Main display: Cursor Page W hen the Service menu is selected, a window will appear asking for the pass- Service menu word. Enter maintenance password To enter the current maintenance password (4 numerical digits), move the cursor to the digit you want to change with the F1 or F2 button.
Page 99 <Function setting> S elect "Service" from the Main menu, and press the button. Test run Input maintenance info. Function setting Check Self check Select "Function setting" with the F1 or F2 button, and press the button. S et the indoor unit refrigerant addresses and unit numbers with the F1 Function setting Ref. address through F4 buttons, and then press the button to confirm the current Unit No. Grp./1/2/3/4/All setting. Monitor: <Checking the indoor unit No.> Cursor Address When the...
Page 100 12-1-2. Selecting functions using the wired remote controller <PAR-21MAA> 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 1 to 0 . Setting number Refrigerant address Unit number...
Page 101 [Operating Procedure] 1 Check the setting items provided by function selection. If settings for a mode are changed by function selection, the functions of that mode will be changed accordingly. Check all the current settings according to steps 2 to 7 , fill in the "Check" column in Table 1, and then change them as necessary. For factory settings, refer to the indoor unit's installation manual. 2 Switch off the remote controller.
Page 102 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 refriger- ant 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. This example shows how to turn off the function that raises the set temperature by 4 degrees during HEAT operation. (Mode 24: 2) The procedure is given after the flow chart.
Page 103 12-2. FUNCTION SELECTION OF REMOTE CONTROLLER 12-2-1. PAR-30MAA/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. <Main display> <Main menu> Main Main menu Vane·Louver·Vent. (Lossnay) High power Room Timer Cool Set temp. Auto Weekly timer OU silent mode Main display: Mode Temp. Cursor Page Function buttons...
Page 104 <Menu structure of PAR-30MAA/PAR-31MAA> Press the button. MENU Main menu Move the cursor to the desired item with the buttons, and press the button. SELECT Vane · Louver · Vent. (Lossnay) High power Timer On / Off timer Auto-Off timer Weekly timer Restriction Temp. range Operation lock Energy saving Auto return Schedule Night setback Filter information Error information Maintenance Auto descending panel Manual vane angle Initial setting...
Page 105 <Main menu list of PAR-30MAA/PAR-31MAA> 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."...
Page 106 12-2-2. PAR-21MAA Normal display (Display when the air conditioner is not running) Setting language (English) 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.
Page 107 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 Item 3 (Setting content) 1.Change Language Language setting to display • Display in multiple languages is possible. ("CHANGE LANGUAGE") 2.Function limit (1) Operation function limit setting (operation lock) ("LOCKING FUNCTION")
Page 108 MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER 13-1. HOW TO "MONITOR THE OPERATION DATA" 13-1-1. PAR-30MAA/PAR-31MAA Details on the operation data including each thermistor temperature and error history can be confirmed with the remote controller. S elect "Service" from the Main menu, and press the button. Check menu Error history Refrigerant volume check Refrigerant leak check Smooth maintenance Select "Check" with the F1 or F2 button, and press the button. Request code Service menu: Cursor Select "Request code" with the F1 or F2 button, and press the...
Page 109 13-1-2. PAR-21MAA 12-1. HOW TO "MONITOR THE OPERATION DATA" • Turn on the [Monitoring the operation data] Example) Request code "004" Discharge temperature 69 ; Refrigerant address "00" A: Maintenance mode B: Refrigerant address C: Data display area D: Request code display area (1) Press the button for 3 seconds so that [ Maintenance mode] appears on the screen (at A ).
Page 110 13-2. Request code list Certain indoor/outdoor combinations do not have the request code function; therefore, no request codes are displayed. Description Request content Unit Remarks (Display range) Operation state Refer to 13-2-1. Detail Contents in Request Code. – Compressor-Operating current (rms) 0 to 50 Compressor-Accumulated operating time 0 to 9999...
Page 111 Description Request content Unit Remarks (Display range) Indoor unit-Control state – Refer to 13-2-1.Detail Contents in Request Code. Outdoor unit-Control state – Refer to 13-2-1.Detail Contents in Request Code. Compressor-Frequency control state Refer to 13-2-1.Detail Contents in Request Code. – Outdoor unit-Fan control state Refer to13-2-1.Detail Contents in Request Code.
Page 112 Description Request content Unit Remarks (Display range) Error history 1 (latest) Displays error history. (" - - " is displayed if no history is present.) Code Error history 2 (second to last) Displays error history. (" - - " is displayed if no history is present.) Code Error history 3 (third to last) Displays error history.
Page 113 Description Request content Unit Remarks (Display range) Indoor-Fan operating time 0 to 9999 1 hour (After filter is reset) Indoor-Total operating time 10 hours 0 to 9999 (Fan motor ON time) Indoor fan output value (Sj value) 0 to 255 Fan control data –...
Page 114 13-2-1. Detail Contents in Request Code [Operation state] (Request code :" 0") Relay output state Power currently Data display Display Compressor Four-way valve Solenoid valve supplied to compressor – – – – Relay output state Operation mode Operation mode Display Operation mode STOP •...
Page 115 [Fan control state] (Request code :" 53 ") Data display Fan step correction value by heatsink temperature overheat prevention control Fan step correction value by cool condensation temperature overheat prevention control Display Correction value - (minus) – 1 [Actuator output state] (Request code :"54") Data display Actuator output state 1 Actuator output state 2...
Page 116 [Contact demand capacity] (Request code : " 61") Setting content Data display Display Setting value Setting content 100% [External input state] (Request code : "62") Input state : Input present Data display Contact demand Silent mode Spare 1 Spare 2 Display Input state input...
Page 117 [Outdoor unit switch setting display (SW1 to SW10, except SW3)] Request codes: 73 to 82 0: Switch OFF 1: Switch ON 0: Switch OFF 1: Switch ON SW1, SW2, SW6, SW7 Data display Data display 00 00 00 00 00 01 00 01 00 02 00 02...
Page 118 [Indoor unit – Model setting information] (Request code : "162" ) Data display Display Model setting state Display Model setting state Display Model setting state PSA-RP•GA, PSH-PGAH SLZ-KA•VAL3/VAQ3 PKA-RP•FAL(2), PKH-P•FALH PEAD-RP•EA(2)/GA, PEHD-P•EAH PCA-RP·GA(2), PCH-P•GAH, PLA-RP·BA, PLA-RP71-100BA2 See the table on the right. SEZ-KA•VA SLZ-KA•VA(L) PCA-RP•KA...
Page 119 EASY MAINTENANCE FUNCTION 14-1. SMOOTH MAINTENANCE 14-1-1. PAR-30MAA/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 button. Check menu Error history Refrigerant volume check Refrigerant leak check Smooth maintenance Select "Check" with the F1 or F2 button, and press the...
Page 120 14-1-2. PAR-21MAA ● Reduces maintenance work drastically. ● 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 Mainte- Discharge temperature 64°C ●...
Page 121 ● Data measurement When the operation is stabilized, measure operation data as explained below. (4) Press the [TEMP] buttons ( ) to select the desired refrigerant address. [Screen (5) Select the type of data to be displayed. After selecting, go to step (6). Compressor information button MENU...
Page 122 <Guide for opration condition> Check Points Inspection item Result Breaker Good Retightened Enter the temperature differences between into Terminal block Outdoor Unit Good Retightened the graph given below. Indoor Unit Good Retightened Operation state is determined according to the plotted areas on (Insulation resistance) M"...
Page 123 INITIAL SETTINGS FOR REFRIGERANT LEAKAGE DETECTION FUNCTION 14-2. 14-2-1. PAR-30MAA/PAR-31MAA Refrigerant leakage is detected after a long time. To enable this function, the refrigerant volume must be saved (initial learning) after installation. Always operate this function in the following manners after installation. • Always perform test run before using this function, and confirm that the air conditioner operates normally. • To accurately detect refrigerant leaks, set the wind speed to strong, and execute this operation. "Refrigerant leak check" is valid only with models which support the refrigerant leak check function. S elect "Service" from the Main menu, and press the button. Check menu Error history Refrigerant volume check Refrigerant leak check Smooth maintenance Select "Check" with the F1 or F2 button, and press the...
Page 124 14-2-2. PAR-21MAA ■ Remote 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).
Page 125 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 1–3 as when "Initial learning operation" for "Checking operation". CLOCK button and select the [GAS LEAK JUDGE] 4Press Refrigerant leakage Refrigerant leakage...
Page 126 DISASSEMBLY PROCEDURE PUHZ-ZRP35VKA PUHZ-ZRP50VKA PUHZ-ZRP35VKAR1 PUHZ-ZRP50VKAR1 PUHZ-ZRP35VKAR1-ER PUHZ-ZRP50VKAR1-ER PUHZ-ZRP35VKAR1-ET PUHZ-ZRP50VKAR1-ET OPERATING PROCEDURE PHOTOS Top panel Top panel 1. Removing the top panel, service panel, front panel, back Photo 1 fixing screws fixing screw Top panel panel and grille (1) R emove the top panel fixing screws (4 × 10), one from the right and two from the left side, and detach the top panel. Grille (2) R emove 2 service panel fixing screws (4 × 10) and detach the service panel by pulling it downward. (See Photo 2) Back panel Grille...
Page 127 OPERATING PROCEDURE PHOTOS 3. Removing the electrical parts box (1) Remove the service panel. (See Photo 2) Electrical parts box Photo 5 fixing screw (2) Remove the top panel. (See Photo 1) (3) Remove the front panel. (See Photo 1) Controller circuit board (C.B) (4) Remove the back panel. (See Photo 1) Electrical part box (5) D isconnect the indoor/outdoor connecting wire from terminal block. (6) D isconnect the connector CNF1, LEV-A and LEV-B on the controller circuit board. <Symbols on the board> • CNF1 : Fan motor • LEV-A, LEV-B : LEV (7) Disconnect the pipe-side connections of the following parts. • 4-way valve (21S4) • Thermistor <Outdoor pipe> (TH3) (TH33) • Thermistor <Comp. surface> (TH32) • Thermistor <Discharge> (TH4) • Thermistor <Outdoor 2-phase pipe, Outdoor> (TH6/7) • High pressure switch (63H) (8) R emove the terminal cover and disconnect the compressor lead wire.
Page 128 OPERATING PROCEDURE PHOTOS 5. Removing the thermistor <Outdoor> (TH7) Photo 7 Thermistor <Outdoor> (1) Remove the service panel. (See Photo 2) Electrical parts box (TH7) (2) Remove the top panel. (See Photo 1) (3) D isconnect the connector TH7 (red) on the controller circuit board in the electrical parts box. (4) L oosen the clamp for the lead wire in the rear of the electrical parts box. (See Photo 6) (5) P ull out the thermistor <Outdoor> (TH7) from the sensor holder. Note: When replacing thermistor <Outdoor> (TH7), replace it together with thermistor <Outdoor 2-phase pipe>...
Page 129: A Wet Cloth To Prevent It From Heating
OPERATING PROCEDURE PHOTOS 8. Removing the 4-way valve Photo 10 (1) Remove the service panel. (See Photo 2) (2) Remove the top panel. (See Photo 1) (3) Remove the front panel. (See Photo 1) (4) Remove the back panel. (See Photo 1) 4-way valve (5) Remove the electrical parts box. (See Photo 5) (6) Remove the 4-way valve (See Photo 9) (7) Recover refrigerant. (8) Remove the welded part of 4-way valve. Note 1: Recover refrigerant without spreading it in the air. Note 2: The welded part can be removed easily by LEV coil removing the back panel.
Page 130 OPERATING PROCEDURE PHOTOS 12. Removing the compressor (MC) Photo 12 (1) Remove the service panel. (See Photo 2) (2) Remove the top panel. (See Photo 1) (3) Remove the front panel. (See Photo 1) (4) Remove the back panel. (See Photo 1) (5) Remove the electrical parts box. (See Photo 5) Compressor (6) Remove the thermistor <Discharge> (TH4) and thermistor shell felt <Comp. surface> (TH32). (See Photo 8) (7) R emove 3 separator fixing screws (4 × 10) and remove the separator. (8) R emove the compressor body felt and compressor shell Compressor Rubber felt. (MC) mount (9) Cutting the band and remove the rubber mount. (10) Recover refrigerant. (11) R emove 3 compressor fixing nuts by using a spanner or a adjustable wrench. Band (12) Remove the welded pipe of compressor inlet and outlet. Compressor body felt Note: Recover refrigerant without spreading it in the air.
Page 131 PUHZ-ZRP60VHA PUHZ-ZRP71VHA PUHZ-ZRP60VHAR1 PUHZ-ZRP71VHAR1 PUHZ-ZRP60VHAR1-ER PUHZ-ZRP71VHAR1-ER PUHZ-ZRP60VHAR1-ET PUHZ-ZRP71VHAR1-ET OPERATING PROCEDURE PHOTOS 1. Removing the service panel and top panel Top panel fixing screws Photo 1 (1) R emove 3 service panel fixing screws (5 × 12) and slide Top panel the hook on the right downward to remove the service Fan grille panel. (2) R emove screws (3 for front, 3 for rear/5 × 12) of the top Service panel panel and remove it. Slide Cover panel (rear) Service panel Grille fixing Cover panel fixing screws screws (front)
Page 132 OPERATING PROCEDURE PHOTOS 4. Removing the thermistor <Outdoor 2-phase pipe> (TH6) Photo 5 Thermistor (1) Remove the service panel. (See Photo 1) <Outdoor 2-phase pipe> (2) Remove the top panel. (See Photo 1) (TH6) Controller Electrical parts box (3) D isconnect the connector TH7/6 (red) on the controller circuit board circuit board in the electrical parts box. (C.B.) (4) L oosen the clamp for the lead wire in the rear of the electrical parts box. (5) P ull out the thermistor <Outdoor 2-phase pipe> (TH6) from the sensor holder. Note: When replacing thermistor <Outdoor 2-phase pipe> Clamp (TH6), replace it together with thermistor <Outdoor>...
Page 133 OPERATING PROCEDURE PHOTOS & ILLUSTRATION 7. Removing the 4-way valve coil (21S4), LEV coil (LEV(A), Photo 8 LEV(B)) 4-way valve coil 4-way valve fixing screw (1) Remove the service panel. (See Photo 1) (2) Remove the top panel. (See Photo 1) (3) Remove the electrical parts box. (See Photo 4) [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. (6) Disconnect the connector 21S4 (green) on the controller board in the electrical parts box. [Removing the LEV coil] (4) Remove the LEV coil by sliding the coil upward. (5) Disconnect the connectors, LEV A (white) and LEV B (red), on the controller circuit board in the electrical parts box. High pressure switch (63H) Figure 1...
Page 134: Remove The Service Panel. (See Photo 1) (2) Remove The Top Panel. (See Photo 1) (3) Remove The Electrical Parts Box. (See Photo 4)
OPERATING PROCEDURE PHOTOS 10. Removing the high pressure switch (63H) Photo 9 (1) Remove the service panel. (See Photo 1) (2) Remove the top panel. (See Photo 1) Lead wire of (3) Remove the electrical parts box. (See Photo 4) high pressure switch (4) R emove 3 right side panel fixing screws (5 × 12) in the rear of the unit and remove the right side panel. (5) Pull out the lead wire of high pressure switch. (6) Recover refrigerant. (7) Remove the welded part of high pressure switch. Note 1: Recover refrigerant without spreading it in the air. Note 2: The welded part can be removed easily by removing the right side panel.
Page 135 OPERATING PROCEDURE PHOTOS 12. Removing the compressor (MC) Photo 11 (1) Remove the service panel. (See Photo 1) (2) Remove the top panel. (See Photo 1) (3) R emove 2 front cover panel fixing screws (5 × 12) and remove the front cover panel. (See Photo 1) (4) R emove 2 back cover panel fixing screws (5 × 12) and remove the back cover panel. (5) Remove the electrical parts box. (See Photo 4) (6) R emove 3 valve bed fixing screws (4 × 10) and 4 ball valve and stop valve fixing screws (5 × 16) and then remove the valve bed. (7) R emove 3 right side panel fixing screws (5 × 12) in the rear of the unit then remove the right side panel. Valve bed Valve bed (8) R emove 2 separator fixing screws (4 × 10) and remove fixing screws the separator. (9) Recover refrigerant. Power (10) R emove the 3 points of the compressor fixing nut using Valve bed receiver fixing screw...
Page 136 PUHZ-ZRP100VKA PUHZ-ZRP125VKA PUHZ-ZRP140VKA OPERATING PROCEDURE PHOTOS Photo 1 1. Removing the service panel and top panel (1) R emove 3 service panel fixing screws (5 × 12) and slide the hook on the right downward to remove the service Top panel fixing screws Top panel panel. (2) R emove screws (3 for front, 3 for rear/5 × 12) of the top panel and remove it. Service panel Grille fixing screws Slide Grille fixing Service panel screws fixing screws Cover panel fixing screws 2. Removing the fan motor (MF1, MF2) Photo 2 Photo 3 (1) Remove the service panel. (See Photo 1)
Page 137 OPERATING PROCEDURE PHOTOS 4. Removing the thermistor <Outdoor 2-phase pipe> (TH6) Photo 5 (1) Remove the service panel. (See Photo 1) Thermistor <Outdoor Controller (2) Remove the top panel. (See Photo 1) 2-phase pipe>(TH6) circuit board (C.B.) (3) D isconnect the connector TH7/6 (red) on the controller circuit board in the electrical parts box. (4) L oosen the clamp for the lead wire in the rear of the electrical parts box. (5) P ull out the thermistor <Outdoor 2-phase pipe> (TH6) from the sensor holder. Note: When replacing thermistor <Outdoor 2-phase pipe> (TH6), replace it together with thermistor <Outdoor> (TH7) since they are combined together.
Page 138: Table Of Contents
OPERATING PROCEDURE ILLUSTRATIONS Figure 1 (PUHZ-ZRP100-125VKA) 7. Removing the 4-way valve coil (21S4), and LEV coil 4-way valve (LEV (A), LEV (B)), (LEV (C) :140 only) coil (21S4) 4-way valve (1) Remove the service panel. (See Photo 1) (2) Remove the top panel. (See Photo 1) [Removing the 4-way valve coil] (3) Remove 4-way valve coil fixing screw (M4 × 6). (4) Remove the 4-way valve coil by sliding the coil toward you. (5) D isconnect the connector 21S4 (green) on the controller circuit board in the electrical parts box. [Removing the LEV coil] Thermistor (3) Remove the LEV coil by sliding the coil upward.
Page 139: Remove The Service Panel. (See Photo 1)
OPERATING PROCEDURE PHOTOS 10. Removing the high pressure switch (63H) Photo 9 (PUHZ-ZRP140VKA) (1) Remove the service panel. (See Photo 1) Reactor (2) Remove the top panel. (See Photo 1) LEV coil (LEV C) (DCL) (3) R emove 3 right side panel fixing screws (5 × 12) in the rear of the unit and remove the right side panel. (4) Pull out the lead wire of high pressure switch. (5) Recover refrigerant. (6) Remove the welded part of high pressure switch. Thermistor Note 1: Recover refrigerant without spreading it in the air. <Outdoor pipe> High pressure Note 2: The welded part can be removed easily by (TH33) switch (63H) removing the right side panel.
Page 140 OPERATING PROCEDURE PHOTOS 13. Removing the power receiver Photo 11 (1) Remove the service panel. (See Photo 1) (2) Remove the top panel. (See Photo 1) Inlet (3) R emove 2 front cover panel fixing screws (5 × 12) and remove the front cover panel. (See Photo 4) (4) R emove 4 back cover panel fixing screws (5 × 12) and Outlet remove the back cover panel. (5) Remove the electrical parts box. (See Photo 4) (6) R emove 3 valve bed fixing screws (4 × 10) and 4 ball valve and stop valve fixing screws (5 × 16) then remove the valve bed. (7) R emove 3 right side panel fixing screws (5 × 12) in the rear of the unit then remove the right side panel. (8) Recover refrigerant. Power (9) Remove 4 welded pipes of power receiver inlet and outlet. receiver (10) Remove 2 receiver leg fixing screws (4 × 10). Note: Recover refrigerant without spreading it in the air. Receiver Compressor Receiver leg...
Page 141 PUHZ-ZRP100YKA PUHZ-ZRP125YKA PUHZ-ZRP140YKA PUHZ-ZRP100YKAR1 PUHZ-ZRP125YKAR1 PUHZ-ZRP140YKAR1 PHOTOS OPERATING PROCEDURE 1. Removing the service panel and top panel Photo 1 Top panel Top panel fixing screws (1) R emove 3 service panel fixing screws (5 × 12) and slide the hook on the right downward to remove the service Service panel panel. Grille fixing (2) R emove screws (3 for front, 3 for rear/5 × 12) of the top screws panel and remove it. Slide Grille fixing screws Service panel fixing screws Cover panel fixing screws Photo 2 Photo 3 2.
Page 142 From the previous page. OPERATING PROCEDURE PHOTOS & ILLUSTRATION Photo 5 (7) R emove the terminal cover and disconnect the compressor lead wire. (8) R emove 2 electrical parts box fixing screws (4 × 10) and detach the electrical parts box by pulling it upward. The Electrical parts box electrical parts box is fixed with 2 hooks on the left and 1 hook on the right. Electrical parts box fixing screw 4. Disassembling the electrical parts box (1) Disconnect all the connectors on the controller circuit board. (2) R emove the 3 screws, screw 1, 2 and 3, that fix the Photo 6 Noise filter circuit plate equipped with the outdoor controller circuit board, board (N.F.) and the electrical parts box, screw 1 from the front and the screw 2 and 3 from the bottom of the electrical parts box. (See Photo 6 and 7) Electrical (3) S lide the plate in the direction of the arrow A and remove it.
Page 143 PHOTOS OPERATING PROCEDURE Photo 11 5. Removing the thermistor <Outdoor 2-phase pipe> (TH6) Thermistor (1) Remove the service panel. (See Photo 1) <Outdoor 2-phase pipe>(TH6) Electrical parts box (2) Remove the top panel. (See Photo 1) (3) D isconnect the connector TH7/6 (red), on the controller circuit board in the electrical parts box. (4) Loosen the 2 wire clamps on top of the electrical parts box. (5) P ull out the thermistor <Outdoor 2-phase pipe> (TH6) from the sensor holder. Note: When replacing thermistor <Outdoor 2-phase pipe> (TH6), replace it together with thermistor <Outdoor> (TH7) since they are combined together.
Page 144: Removing The 4-Way Valve Coil (21S4), And Lev Coil
OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS Photo 15 8. Removing the 4-way valve coil (21S4), and LEV coil (LEV(A), LEV(B)), (LEV(C): 140 only) (1) Remove the service panel. (See Photo 1) 4-way valve (2) Remove the top panel. (See Photo 1) [Removing the 4-way valve coil] (3) Remove 4-way valve coil fixing screw (M4 × 6). 4-way valve (4) Remove the 4-way valve coil by sliding the coil toward you. coil (21S4) (5) D isconnect the connector 21S4 (green) on the controller circuit board in the electrical parts box. [Removing the LEV coil] (3) Remove the LEV coil by sliding the coil upward.
Page 145: Remove The Service Panel. (See Photo 1)
OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS 12. Removing the reactors (ACL1, ACL2, ACL3) Photo 16 (1) Remove the service panel. (See Photo 1) (2) Remove the 4 fixing screws the reactor box. (2/front, 2/back of reactor). (3) Disconnect the lead wires from the reactor. (See Photo 17) (4) Remove each 4 fixing screws (2/front, 2/back of reactor) of 3 reactors. Note 1: The reactor is very heavy (4 kg) ! Be careful when handling it. Note 2: The reactor box is also removable. Photo 17 Reactors Reactors...
Page 146 OPERATING PROCEDURE PHOTOS Photo 18 13. Removing the compressor (MC) (1) Remove the service panel. (See Photo 1) (2) Remove the top panel. (See Photo 1) (3) R emove 2 front cover panel fixing screws (5 × 12) and Valve bed Valve remove the front cover panel. (See Photo 1) bed fixing (4) R emove 4 back cover panel fixing screws (5 × 12) and screws remove the back cover panel. (5) Remove the electrical parts box. (See Photo 4) Power (6) R emove 3 valve bed fixing screws (4 × 10) and 4 ball valve receiver and stop valve fixing screws (5 × 16) and then remove the valve bed. (7) R emove 3 right side panel fixing screws (5 × 12) in the Separator rear of the unit and then remove the right side panel. (8) R emove 3 separator fixing screws (4 × 10) and remove the separator.
Page 147 Related Links Model Number: PUHZ-ZRP50VKA Kleusberg, Mr Slim and City Multi, Germany PUHZ-ZRP35-50VKA Declaration of Conformity PUHZ-ZRP35-140VKA Service Manual (OCH527C)

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Mr. slim puhz-zrp50vka Mr. slim puhz-zrp60vha Mr. slim puhz-zrp71vha Mr. slim puhz-zrp100vka Mr. slim puhz-zrp125vka Mr. slim puhz-zrp140vka ... Show all

Mitsubishi Electric Mr. Slim PUHZ-ZRP35VKA Service Manual

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Summary of Contents for Mitsubishi Electric Mr. Slim PUHZ-ZRP35VKA

Page 129: A Wet Cloth To Prevent It From Heating

Page 134: Remove The Service Panel. (See Photo 1) (2) Remove The Top Panel. (See Photo 1) (3) Remove The Electrical Parts Box. (See Photo 4)

Page 138: Table Of Contents

Page 139: Remove The Service Panel. (See Photo 1)

Page 144: Removing The 4-Way Valve Coil (21S4), And Lev Coil

Page 145: Remove The Service Panel. (See Photo 1)

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