Mitsubishi PUHZ-P200YHA Service Manual Download Page 93

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OPERATING PROCEDURE

PHOTOS

11 Removing the compressor (MC)

(1) Remove the service panel. (See Figure 1)
(2) Remove the top panel. (See Figure 1)
(3) Remove 2 front cover panel fixing screws (5 × 12) and

remove the front cover panel.

(4) Remove 2 back cover panel fixing screws (5 × 12) and

remove the back cover panel.

(5) Remove the electrical parts box. (See Photo 3)
(6) Remove 3 valve bed fixing screws (4 × 10), 4 ball valve

and stop valve fixing screws (5 × 16), then remove the
valve bed.

(7) Remove 3 right side panel fixing screws (5 × 12) in the

rear of the unit and remove the right side panel.

(8) Remove 3 separator fixing screws (4 × 10) and remove

the separator.

(9) Remove the soundproof cover for compressor.
(10) Remove the terminal cover and remove the compressor

lead wire.

(11) Recover refrigerant.
(12) Remove the 3 points of the compressor fixing nut using

a spanner or a adjustable wrench.

(13) Remove the welded pipe of compressor inlet 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 service panel. (See Figure 1)

(2) Remove the top panel. (See Figure 1)

(3) Remove 2 front cover panel fixing screws (5 × 12) and

remove the front cover panel.

(4) Remove 2 back cover panel fixing screws (5 × 12) and

remove the back cover panel.

(5) Remove the electrical parts box. (See Photo 3)

(6)

Remove 3 valve bed fixing screws (4 × 10), 4 ball valve

and stop valve fixing screws (5 × 16) then remove the

valve bed.

(7) Remove 3 right side panel fixing screws (5 × 12) in the

rear of the unit and remove the right side panel.

(8) Recover refrigerant.

(9) Remove 2 welded pipes of accumulator inlet and outlet.

(10) Remove 2 accumulator leg fixing screws (4 × 10).

Note: Recover refrigerant without spreading it in the air.

Photo 10

Accumulator
leg fixing
screws

Inlet

Outlet

Compressor
terminal

Accumulator

Valve bed
fixing screws

Compressor
(Soundproof
cover)

Compressor fixing nut

Separator for fixing
screw

Valve bed

Valve bed
fixing screw

Separator

Summary of Contents for PUHZ-P200YHA

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 94: ...94...

Page 95: ...95...

Page 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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