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SERVICE MANUAL

No. OCH424

REVISED EDITION-D

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

R410A

November 2010

Outdoor unit
[Model names]

PUHZ-P200YHA

PUHZ-P250YHA

PUHZ-P200YHA3

PUHZ-P250YHA3

[Service Ref.]

PUHZ-P200YHA
PUHZ-P250YHA
PUHZ-P200YHA3
PUHZ-P200YHA3R1
PUHZ-P200YHA3R2
PUHZ-P200YHA3R3
PUHZ-P250YHA3
PUHZ-P250YHA3R1
PUHZ-P250YHA3R2
PUHZ-P250YHA3R3

PUHZ-P200YHA3R1/R2/R3
PUHZ-P250YHA3R1/R2/R3

Note:

•

This manual describes only

service data of the outdoor
units.

•

RoHS compliant products

have <G> mark on the
spec name plate.

CONTENTS

1. TECHNICAL CHANGES................................. 2

2. REFERENCE MANUAL.................................. 2

3. SAFETY PRECAUTION.................................. 3

4. FEATURES...................................................... 6

5. SPECIFICATIONS........................................... 7

6. DATA............................................................... 8

7. OUTLINES AND DIMENSIONS.................... 10

8. WIRING DIAGRAM....................................... 12

9. WIRING SPECIFICATIONS.......................... 13

10. REFRIGERANT SYSTEM DIAGRAM............... 18

11. TROUBLESHOOTING................................... 20

12. FUNCTION SETTING.................................... 70

13. MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER.... 77

14. EASY MAINTENANCE FUNCTION.............. 87

15. DISASSEMBLY PROCEDURE..................... 90

PARTS CATALOG (OCB424)

Revision:

•

PUHZ-P200/250YHA3R3

have been added in
REVISED EDITION-D.

•

Some descriptions have

been modified.

•

Please void OCH424

REVISED EDITION-C.

Содержание PUHZ-P200YHA

Страница 1: ...of the outdoor units RoHS compliant products have G mark on the spec name plate CONTENTS 1 TECHNICAL CHANGES 2 2 REFERENCE MANUAL 2 3 SAFETY PRECAUTION 3 4 FEATURES 6 5 SPECIFICATIONS 7 6 DATA 8 7 OU...

Страница 2: ...PKA RP35 50HAL OCH453 OCB453 PLA RP100BA3 PLA RP100BA3 OCH459 OCB459 PEAD RP35 50 60 71 100 125 140JA L PEAD RP35 50 60 71 100 125 140JA L R1 UK HWE08130 BWE08240 BWE09220 INDOOR UNIT S SERVICE MANUAL...

Страница 3: ...nder is used the composition of refrigera nt will change and the efficiency will be lowered Flare tool Electronic refrigerant charging scale Vacuum pump adaptor Size adjustment gauge Gauge manifold To...

Страница 4: ...base 7 Refrigerant cylinder Only for R410A Top of cylinder Pink Cylinder with syphon 8 Refrigerant recovery equipment 1 Cautions for service 1 Perform service after recovering the refrigerant left in...

Страница 5: ...0 17 0 22 0 24 0 27 0 36 0 Nominal dimensions inch Flare nut dimensions Outside diameter Dimension B mm R410A R22 Gauge manifold Charge hose Gas leak detector Refrigerant recovery equipment Refrigera...

Страница 6: ...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 th...

Страница 7: ...Height difference Piping length Service Ref PUHZ P250YHA PUHZ P250YHA3 PUHZ P250YHA3R1 PUHZ P250YHA3R2 PUHZ P250YHA3R3 PUHZ P200YHA PUHZ P200YHA3 PUHZ P200YHA3R1 PUHZ P200YHA3R2 PUHZ P200YHA3R3 Cooli...

Страница 8: ...ping length one way 10m 20m 30m 40m 50m Factory charged 4 8 5 9 5 3 6 5 5 8 7 1 6 7 8 3 7 6 9 5 60m 8 5 10 7 70m 9 4 11 9 5 8 7 1 Service Ref PUHZ P200YHA PUHZ P200YHA3 PUHZ P200YHA3R1 PUHZ P200YHA3R2...

Страница 9: ...30 0 2 96 30 2 2 59 26 4 0 62 6 32 0 86 8 75 0 87 8 87 0 64 6 53 Electrical circuit Refrigerant circuit Indoor side Outdoor side Representative matching SHF BF Mode Capacity Input Total kgf kgf Phase...

Страница 10: ...planation of particular details are given in the installation manuals etc 30 FOUNDATION 10 500 500 150 Service space FREE O v e r 1 0 m m O v e r 1 0 m m O v e r 1 5 0 m m O v e r 1 0 0 0 m m 53 40 56...

Страница 11: ...etails are given in the installation manuals etc 30 FOUNDATION 10 500 500 150 Service space 53 40 56 0 70 175 600 175 330 30 370 28 19 417 60 37 2 12 36 oval holes Foundation Bolt M10 2 U Shaped notch...

Страница 12: ...k Indoor Outdoor Motor for Compressor Fan Motor Solenoid Valve Four Way Valve High Pressure Switch Thermistor Outdoor Pipe SC U V W TB L1 L2 L3 Connection Terminal U V W Phase Thermistor Discharge The...

Страница 13: ...electrically insulated by the transformer or other device Notes 1 Wiring size must comply with the applicable local and national code 2 Power supply cords and Indoor unit Outdoor unit connecting cord...

Страница 14: ...unit Indoor unit outdoor unit connecting cables Remote controller Indoor unit Option Indoor unit power supply 1 A breaker with at least 3 0 mm contact separation in each pole shall be provided Use ear...

Страница 15: ...Number of wires Polarity L m 6 Round 2 5 3 Clockwise S1 S2 S3 Pay attention to stripe of yellow and green 30 2 Flat 2 5 3 Not applicable Because center wire has no cover finish Not applicable 5 Flat...

Страница 16: ...spots on the shield wire noise may enter into the shield wire because the earth wire and shield wire form 1 circuit and the electric potential difference occurs due to the impedance difference among...

Страница 17: ...ddresses are 00 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 2 50 M NET Address No Setting example Switch setting SW11 ones digit...

Страница 18: ...in heating 10 REFRIGERANT SYSTEM DIAGRAM PUHZ P200YHA PUHZ P250YHA PUHZ P200YHA3 PUHZ P250YHA3 PUHZ P200YHA3R1 PUHZ P250YHA3R1 PUHZ P200YHA3R2 PUHZ P250YHA3R2 PUHZ P200YHA3R3 PUHZ P250YHA3R3 Outdoor...

Страница 19: ...later w If the refrigerant recovering operation has been completed normally LED1 is not lit and LED2 is lit the unit will remain stopped until the power supply is turned off 4 Turn off the power supp...

Страница 20: ...s no abnormality in electrical component controller board remote controller and etc Re check the abnormal symptom Conduct trouble shooting and ascertain the cause of the trouble according to 11 5 Trou...

Страница 21: ...once blink alternately F1 After startup is displayed green once and red twice blink alternately F3 F5 F9 After startup is displayed green twice and red once blink alternately EA Eb After startup is di...

Страница 22: ...ller display turned off A and current operation mode are displayed 3 Press the button to activate mode then check whether cool air is blown out from the unit 4 Press the button to activate mode then c...

Страница 23: ...it has a function that stores error codes the latest check code can be recalled even if it is cancelled by the remote controller or power is shut off Check the error code history for each unit using t...

Страница 24: ...The display content will change as shown below Press the FILTER button to start self diagnosis Remote controller self diagnosis result When the remote controller is functioning correctly Check for oth...

Страница 25: ...ncelled Procedure 1 Press the CHECK button twice 2 Press the temperature buttons 3 Point the remote controller at the sensor on the indoor unit and press the HOUR button 4 Point the remote controller...

Страница 26: ...imes Wireless remote controller Wired remote controller Beeper sounds OPERATION INDICATOR lamp blinks Check code Number of times Wireless remote controller Wired remote controller 1 P1 Intake sensor e...

Страница 27: ...on the outdoor controller circuit board Check connection of the connector CNDC on the outdoor noise filter circuit board Refer to 11 9 3 Check connection of reactor ACL4 4 a Check connection of outdo...

Страница 28: ...r units Abnormal if the number cannot be checked automati cally due to miswiring of indoor outdoor unit connecting wire and etc after power is turned on for 4 minutes 2 Abnormal if outdoor controller...

Страница 29: ...r 5 minutes Abnormal if condenser evaporator temperature thermistor TH5 exceeds 40 during defrosting and discharge temperature thermistor TH4 exceeds 110 2 Abnormal if discharge superheat Cooling TH4...

Страница 30: ...power module 1 Check connection of connector TH3 TH7 6 on the outdoor controller circuit board Check breaking of the lead wire for thermistor TH3 TH6 TH7 Refer to 11 9 2 Check resistance value of the...

Страница 31: ...setting of outdoor con troller circuit board UH 5300 Compressor current sensor error or input current error Abnormal if compressor current sensor detects 1 0A to 1 0A within 3 minutes after compressor...

Страница 32: ...ata normally from remote controller board or from other indoor controller board for 3 minutes Error code E4 2 Indoor controller board cannot receive any signal from remote controller for 2 minutes Err...

Страница 33: ...rmal if communication between outdoor controller circuit board and M NET board is not available 1 Check disconnection looseness or breaking of connection wire between outdoor control ler circuit board...

Страница 34: ...FRESH MASTER LOSSNAY or remote con troller is not connected to terminal block for central control TB7 of outdoor unit 2 Check if transmission wire of indoor unit FRESH MASTER or LOSSNAY is not con ne...

Страница 35: ...transmission connector CN2M of outdoor unit 3 Defective transmitting receiving circuit of outdoor unit or indoor unit Always try the followings when the error A7 occurs 1 Turn off the power supply of...

Страница 36: ...pply of same refriger ant system with LOSSNAY is put off or within 2 minutes of restart abnormality is detect ed 3 Contact failure of transmis sion wire of indoor unit of LOSSNAY 4 Disconnection of tr...

Страница 37: ...or Check LED3 on indoor con troller board 1 When LED3 is not blinking Check indoor outdoor connecting wire for miswiring Converse wiring of S1 and S2 or break of S3 wiring 2 When LED3 is blinking Indo...

Страница 38: ...ating immediately when turning off by the remote controller 12Normal operation For protection of compressor 12Normal operation 4 Even controlled by the wireless remote controller no beep is heard and...

Страница 39: ...sis after turning on the main power Normal The start up diagnosis will be over in around 2 minutes Miswiring of indoor outdoor connecting wire Breaking of indoor outdoor connecting wire S3 Defective i...

Страница 40: ...it board are blown Check the wiring of the outdoor unit Check if the wiring is bad Check if the fuses are blown The fuses on the outdoor controller circuit board will be blown when the indoor outdoor...

Страница 41: ...outdoor controller circuit board Replace the outdoor controller circuit board Normal Only the unit which has the refrigerant address 0 supplies power to the remote controller Set the refrigerant addre...

Страница 42: ...contact of the remote controller wire Check the voltage of the terminal block TB5 connecting the remote controller wire If it is not between DC 10V and DC16V the indoor controller board must be defect...

Страница 43: ...clear FILTER from the display See the operation manual that came with the product for how to clean the filters STANDBY is displayed on the screen This is displayed when the unit starts HEAT operation...

Страница 44: ...or unit is controlling the airflow amount in order to keep the optimum operating condition A sound similar to water flowing is heard from the unit This is not a malfunction This is the sound which is...

Страница 45: ...e airflow direction does not change Up down vane left right louver 1 Check if the vane is set to a fixed position Check if the vane motor connector is removed 2 Check if the air conditioner has a func...

Страница 46: ...rips 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 collected and drained out for once Water or moisture is expe...

Страница 47: ...olenoid valve coil Four way valve 21S4 Motor for compressor MC Linear expansion valve LEV A Normal Abnormal Open or short Disconnect the connector then measure the resistance with a tester Winding tem...

Страница 48: ...ctor CNF1 2 Fuse check Check the fuse F5 on outdoor controller board Power supply check Remove the connector CNF1 2 Measure the voltage in the outdoor controller circuit board TEST POINT VDC between 1...

Страница 49: ...k 40 3 0k Thermistor R0 15k 3 B constant 3480 2 Rt 15exp 3480 273 t 273 1 1 Thermistor R120 7 465k 2 B constant 4057 2 Rt 7 465exp 4057 273 t 393 1 1 20 253k 30 160k 40 104k 50 70k 60 48k 70 34k 80 24...

Страница 50: ...alve is locked sound can be heard No sound is heard when the pulse number moves from B to A in case coil is burnt out or motor is locked by open phase Sound can be detected by placing the ear against...

Страница 51: ...e 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...

Страница 52: ...cooling operation for more than 10 hours Neglecting this could result in freezing the heat exchanger in indoor unit 3 Emergency operation procedure 1 Turn the main power supply off 2 Turn on the emerg...

Страница 53: ...5 80 50 35 5 30deg 5deg HEAT 20 5 45 50 22 5 80 5 7 5 30deg 5deg 1 1 1 1 2 2 Remarks 1 If the thermistor temperature data is normal not open short that data is loaded into the control as valid data If...

Страница 54: ...or Outdoor 2 phase pipe CNDC Connect to the outdoor noise filter circuit board CNDC VFG TEST POINT 4 Voltage between right pins of PC5C and PC5D pin 3 and pin 4 Same as CNF17 4 VSP TEST POINT 3 Voltag...

Страница 55: ...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 CNDC Connect to the outdoor co...

Страница 56: ...r noise filter circuit board CNCT CN4 Connect to the outdoor con troller circuit board CN4 CN2 Connect to the outdoor controller circuit board CN2 1 5 Power circuit board Transmitting signal to the co...

Страница 57: ...f DIP SW1 1 is left ON or changed to OFF again This depends on the service conditions 11 10 FUNCTION OF SWITCHES CONNECTORS AND JUMPERS 1 Function of switches w2 Power failure automatic recovery can b...

Страница 58: ...an SW 1 which is procured locally between Orange and Red 1 and 3 of the adapter for external signal input PAC SC36NA and insulate the tip of the brown lead wire It is possible to set it to the follow...

Страница 59: ...ontroller Remote controller transmitting error is detected by remote controller Remote controller signal receiving error is detected by indoor unit Remote controller transmitting error is detected by...

Страница 60: ...f outdoor thermistors Abnormality of heatsink temperature Check if indoor outdoor units have a short cycle on their air ducts Measure resistance value of outdoor thermistor TH8 Check the outdoor fan m...

Страница 61: ...isplayed while error is being postponed 3 When the display blinks Inspection code is displayed when compressor stops due to the work of protection devices Display Contents to be inspected When power i...

Страница 62: ...hours or more hundreds digit tens digit and ones digit are displayed by turns Example When 2450 hours 245 10 hours 0 5 secs 0 5secs 2 secs 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Compressor oper...

Страница 63: ...2 Alternate display of error unit number and code 3 217 When the temperature is 100 or more the hundreds digit tens digit and ones digit are displayed by turns Example When 130 0 5 secs 0 5secs 2 secs...

Страница 64: ...Display details 0 H P 1 Cooling only 0 Single phase 2 3 phase Setting details Defrosting switch Display details 0 Normal 1 For high humidity Example When heat pump 3 phase and defrosting normal are s...

Страница 65: ...for display Unit 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Indoor setting temperature 17 30 Outdoor pipe temperature Cond Eva TH6 39 88 Outdoor heatsink temperature TH8 40 200 17 30 39 88 When the...

Страница 66: ...tdoor unit Postponement code display Blinking During postponement Lighting Cancellation of postponement 00 is displayed in case of no postponement Code display Error code history 3 Oldest Alternate di...

Страница 67: ...C or less and temperature are displayed by turns Example When 15 C 0 5 secs 0 5secs 2 secs Outdoor pipe temperature 2 phase TH6 on error occurring 39 88 39 88 When the temperature is 0 C or less and t...

Страница 68: ...temperature is 0 C or less and temperature are displayed by turns Indoor pipe temperature Cond Eva TH5 3 Indoor 3 39 88 39 88 When the temperature is 0 C or less and temperature are displayed by turn...

Страница 69: ...ture Preventive control for excessive temp erature rise of condensing temperature Frosting preventing control Preventive control for excessive temp erature rise of radiator panel Example The following...

Страница 70: ...the units in the same refrigerant system 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 eac...

Страница 71: ...4 setting the unit number of Operating Procedure When setting functions for a simultaneous twin triple quadruple indoor unit system set the unit number to 01 to 04 for each indoor unit in case of sel...

Страница 72: ...etting Press Specified indoor unit FAN operation Change refrigerant address or unit No Switch to function setting mode Press and at the same time with the remote controller stopped 12 1 1 Selecting fu...

Страница 73: ...e refrigerant address and unit number may be incorrect so repeat steps and to set the correct ones When grouping different refrigerant systems if an indoor unit other than the one to which the refrige...

Страница 74: ...the temp button once to set 50 Direct the wireless remote controller toward the receiver of the indoor unit and press the button 3 Set the unit number Press the temp button to set the unit number Pres...

Страница 75: ...ted OFF The automatic mode is not displayed when the operation mode is selected 4 3 Mode selection setting 1 Remote controller main sub setting To switch the setting press the ON OFF button Main The c...

Страница 76: ...t displayed when the operation mode is selected The temperature range limit is not active Initial setting value The temperature range can be changed on cooling dry mode The temperature range can be ch...

Страница 77: ...ns and to select the desired refrigerant address Screen 4 Press the CLOCK buttons and to set the desired request code No 5 Press the FILTER button to perform data request The requested data will be di...

Страница 78: ...red by thermostat Indoor unit Intake air temperature Unit No 1 Heat mode 4 deg correction Indoor unit Intake air temperature Unit No 2 Heat mode 4 deg correction Indoor unit Intake air temperature Uni...

Страница 79: ...r unit Error postponement history 2 previous Outdoor unit Error postponement history 3 last but one 0 255 Refer to13 2 1 DetailContentsinRequestCode Refer to13 2 1 DetailContentsinRequestCode Refer to...

Страница 80: ...story 3 third to last Abnormal thermistor display TH3 TH6 TH7 TH8 Operation mode at time of error Compressor Operating current at time of error Compressor Accumulated operating time at time of error C...

Страница 81: ...time Fan motor ON time Indoor fan output value Sj value Indoor fan output value Pulsation ON OFF Indoor fan output value duty value Indoor unit Model setting information Indoor unit Capacity setting i...

Страница 82: ...ode display area C 4 Relay output state Operation mode Indoor unit Control state Request code 50 Data display Operation mode Display Operation mode 0 STOP FAN C COOL DRY H HEAT d DEFROST Relay output...

Страница 83: ...ay SV1 Four way valve Compressor 0 1 2 3 4 5 6 7 8 9 A b C d E F ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON Actuator output state Display 52C SV2 S...

Страница 84: ...splay Request code 70 Data display Capacity 10 50 9 35 11 60 14 71 20 100 25 125 28 140 40 200 50 250 Outdoor unit Setting information Request code 71 Data display Setting information Setting informat...

Страница 85: ...0 1 1 1 1 0 0 1 1 1 0 1 0 1 1 1 1 1 0 1 1 1 0 0 1 1 1 1 1 0 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 Outdoor unit switch setting display SW1 to SW10 except SW3 Request codes 73 to 82 0 Switch OFF 1 Switch ON...

Страница 86: ...Z GA VA L 32 13 33 14 34 15 35 16 36 17 37 18 38 19 39 1A 3A 1b 3b 1C 3C 1d 3d 1E 3E 1F 3F Indoor unit Capacity setting information Request code Data display 0 0 See the table on the right Display Cap...

Страница 87: ...want to check the data with the air conditioner stopped skip to step 4 L Fixed Hz operation The operating frequency can be fixed to stabilize operation of inverter model If the air conditioner is cur...

Страница 88: ...discharge temperature Outdoor ambient temperature INDOOR UNIT INLET TEMP INDOOR UNIT H EXC TEMP INDOOR UNIT FILTER USE H Indoor room temperature Heat exchanger temperature Filter operating time 12 340...

Страница 89: ...er temperature Indoor intake air temperature Cool Classification Item Result Inspection Temperature difference Heat Inspection Temperature difference Stable Unstable Stable Unstable Fixed Hz operation...

Страница 90: ...fixing screws 5 25 to detach the fan motor See Photo 2 Fan motor fixing screws Photo 3 3 Removing the electrical parts box 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1...

Страница 91: ...n top of the electrical parts box See Photo 4 5 Pull out the thermistor Outdoor TH7 from the sensor holder Note In case of replacing thermistor Outdoor TH7 replace it together with thermistor Outdoor...

Страница 92: ...panel See Figure 1 3 Remove 3 valve bed fixing screws 4 10 4 ball valve and stop valve fixing screws 5 16 then remove the valve bed 4 Remove 4 right side panel fixing screws 5 12 in the rear of the u...

Страница 93: ...and outlet and remove the compressor Note Recover refrigerant without spreading it in the air Photo 9 Compressor MC Soundproof cover Compressor fixing nut 12 Removing the accumulator 1 Remove the ser...

Страница 94: ...94...

Страница 95: ...95...

Страница 96: ...2010 No OCH424 REVISED EDITION D Distributed in Jan 2010 No OCH424 REVISED EDITION C PDF 5 Distributed in Nov 2009 No OCH424 REVISED EDITION B PDF 7 Distributed in Feb 2009 No OCH424 REVISED EDITION...

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