Mitsubishi Electric PUHZ-P200YKA.UK Page 1 Service Manual Download

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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

SERVICE MANUAL

R410A

Outdoor unit

[Model Name]

PUHZ-P200YKA

PUHZ-P250YKA

[Service Ref.]

PUHZ-P200YKA.UK

PUHZ-P200YKAR1.UK
PUHZ-P250YKA.UK

PUHZ-P250YKAR1.UK

PARTS CATALOG (OCB582)

CONTENTS

TECHNICAL CHANGES ···································· 2

1. REFERENCE MANUAL ································· 3

2. SAFETY PRECAUTION ································· 3

3. FEATURES ····················································· 7

4. SPECIFICATIONS ·········································· 8

5. DATA ······························································· 9

6. OUTLINES AND DIMENSIONS ··················· 12

7. WIRING DIAGRAM ······································ 13

8. WIRING SPECIFICATIONS ·························· 14

9. REFRIGERANT SYSTEM DIAGRAM ············· 19

10. TROUBLESHOOTING ·································· 21

11. FUNCTION SETTING ··································· 75

12. MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER ····83

13. EASY MAINTENANCE FUNCTION ············· 92

14. DISASSEMBLY PROCEDURE ····················· 95

Note:

• This manual describes service

data of the outdoor units only.

No. OCH582

REVISED EDITION-B

June 2015

• Please void OCH582

REVISED EDITION-A.

Revision:

•

Added

PUHZ-P200YKAR1.UK and

PUHZ-P250YKAR1.UK in

REVISED EDITION-B.

• Some descriptions have been

modified.

Summary of Contents for PUHZ-P200YKA.UK

Page 1: ... OUTLINES AND DIMENSIONS 12 7 WIRING DIAGRAM 13 8 WIRING SPECIFICATIONS 14 9 REFRIGERANT SYSTEM DIAGRAM 19 10 TROUBLESHOOTING 21 11 FUNCTION SETTING 75 12 MONITORING THE OPERATION DATABY THE REMOTE CONTROLLER 83 13 EASY MAINTENANCE FUNCTION 92 14 DISASSEMBLY PROCEDURE 95 Note This manual describes service data of the outdoor units only No OCH582 REVISED EDITION B June 2015 Please void OCH582 REVIS...

Page 2: ...2 TECHNICAL CHANGES PUHZ P200YKA UK PUHZ P200YKAR1 UK PUHZ P250YKA UK PUHZ P250YKAR1 UK 1 Software modification to be able to connect with PAC IF013B E PAC SIF013B E AHU interface has been made OCH582B ...

Page 3: ... BWE10140 2 SAFETY PRECAUTION 2 2 CAUTIONS RELATED TO NEW REFRIGERANT Cautions for units utilizing refrigerant R410A Preparation before the repair service Prepare the proper tools Prepare the proper protectors Provide adequate ventilation After stopping the operation of the air conditioner turn off the power supply beaker Discharge the condenser before the work involving the electric parts Precaut...

Page 4: ...ant from liquid phase of gas cylinder If the refrigerant is charged from gas phase composition change may occur in refrigerant and the efficiency will be lowered Use new refrigerant pipes In case of using the existing pipes for R22 be careful with the following Be sure to clean the pipes and make sure that the insides of the pipes are clean Change flare nut to the one provided with this product Us...

Page 5: ...w pipes If the existing air conditioner cannot operate use a refrigerant recovery device to collect the refrigerant In case existing pipes were used for gas or oil heat pump systems be sure to clean the pipes for P200 250 models The existing pipe thickness does not meet specifications or the pipes are damaged 5 2 3 PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES 1 Flowchart 3 Service tools...

Page 6: ...6 0 29 0 17 0 22 0 24 0 27 0 36 0 Nominal dimensions in Flare nut dimensions Outside diameter Dimension B mm mm R410A R22 Gauge manifold Charge hose Gas leak detector Refrigerant recovery equipment Refrigerant cylinder Applied oil Safety charger Charge valve Vacuum pump Flare tool Bender Pipe cutter Welder and nitrogen gas cylinder Refrigerant charging scale Vacuum gauge or thermis tor vacuum gaug...

Page 7: ... always control the optimal refrigerant level regardless of the length 30 m maximum and 5 m minimum of piping The additional refrigerant charging work during instal lation often causes problems It is completely eliminated by chargeless system This unique system improves the quality and reliability of the work done It also helps to speed up the installation time PUHZ P200YKA PUHZ P250YKA OCH582B ...

Page 8: ...Between the indoor outdoor unit Cooling Heating W D H Liquid Gas Indoor side Outdoor side Height difference Piping length Service Ref PUHZ P250YKA UK PUHZ P250YKAR1 UK PUHZ P200YKA UK PUHZ P200YKAR1 UK Munsell 3Y 7 8 1 1 Linear Expansion Valve Hermetic Line start Plate fin coil Propeller fan o 2 0 200 0 200 140 4 940 Reverse cycle 1 050 41 5 16 330 40 13 1 9 16 1 338 52 11 16 R410A Flared Flared B...

Page 9: ...5 9 6 2 6 5 0 9 7 4 1 8 8 3 2 7 9 2 3 6 10 1 6 5 PUHZ P250YKA UK PUHZ P250YKAR1 UK 6 9 7 3 7 7 1 2 8 9 2 4 10 1 3 6 11 3 4 8 12 5 7 7 5 3 COMPRESSOR TECHNICAL DATA 5 2 ADJUSTING THE AMOUNT OF REFRIGERANT PUHZ P200 250 Amount of additional refrigerant charge kg 30 m and less 31 40 m and less 41 50 m and less 51 60 m and less 61 70 m and less 0 9 kg 1 8 kg 2 7 kg 3 6 kg 1 2 kg 2 4 kg 3 6 kg 4 8 kg S...

Page 10: ...TER FREQUENCIES Hz NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 PUHZ P200YKA UK PUHZ P200YKAR1 UK COOLING MODE HEATING 58 SPL dB 60 LINE 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 µbar BAND CENTER FREQUENCIES Hz NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 PUHZ P250YKA UK PUHZ P250YKAR1 UK COOLIN...

Page 11: ...27 20 27 15 19 15 19 45 3 12 4 41 6 13 3 7 35 7 35 6 24 6 24 0 71 0 74 0 18 0 21 2 99 3 03 2 97 2 81 0 63 0 83 0 89 0 63 0 13 0 87 0 14 0 94 Electrical circuit Refrigerant circuit Indoor side Outdoor side Representative matching SHF BF Mode Capacity Input Total Phase Hz Voltage Input Current Outdoor unit Phase Hz Voltage Current Discharge pressure Suction pressure Discharge temperature Condensing ...

Page 12: ...12 Unit mm 6 OUTLINES AND DIMENSIONS PUHZ P200YKA UK PUHZ P200YKAR1 UK PUHZ P250YKA UK PUHZ P250YKAR1 UK OCH582B ...

Page 13: ...Adapter Board Connector Connect to Optional M NET Adapter Board LED Operation Inspection Indicators Fuse T6 3AL250V Relay SYMBOL TB1 TB2 MC MF1 MF2 21S4 63H TH3 TH6 TH7 TH8 TH32 LEV A ACL4 DCL RS FUSE1 FUSE2 CY1 CY2 SYMBOL SYMBOL NAME NAME NAME CNDC PNK 3 1 MF1 CNF1 WHT 1 7 MS 3 MF2 CNF2 WHT 1 7 2 MS 3 TRANS X54 3 1 P B U POWER SUPPLY 3N 400V 50Hz TB1 V W RED WHT BLK MC 7 L1 L2 L3 N N F CNDC PNK 3...

Page 14: ...r unit Outdoor unit Remote controller B B Earth leakage breaker C wiring circuit breaker or isolating switch C 1 2 1 2 1 2 S1 S2 S3 S1 S2 S3 S1 S2 S3 S1 S2 S3 Indoor outdoor connection cable Indoor unit Unit power supply Indoor unit Indoor unit Outdoor unit Remote controller L N Synchronized twin and triple system Electrical wiring Synchronized twin Synchronized triple Notes 1 Wiring size must com...

Page 15: ...lies change the connections of the connectors as shown in the following figure Connectors Indoor unit control board Separate indoor unit outdoor unit power supplies Electric heater For models with heater S1 S2 S3 L N BLUE BLUE YELLOW YELLOW CND CN01 ORANGE CN01 ORANGE S1 S2 S3 L N YELLOW BLUE BLUE YELLOW CND Indoor unit control board Note There are 3 types of labels A B and C Affix the appropriate...

Page 16: ...umber of wires Polarity L m 5 Round 2 5 3 Clockwise S1 S2 S3 Pay attention to stripe of yellow and green 30 1 Flat 2 5 3 Not applicable Because center wire has no cover finish Not applicable 4 Flat 1 5 4 From left to right S1 Open S2 S3 18 2 Round 2 5 4 Clockwise S1 S2 S3 Open Connect S1 and S3 to the opposite angle 30 3 Note Power supply cords of appliances shall not be lighter than design 60245 ...

Page 17: ...more than 2 earthing 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 earthing spots In case of single spot earthing noise does not enter into the shield wire because the earth wire and shield wire do not form 1 circuit To avoid communication errors ...

Page 18: ... OFF All refrigerant addresses 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 1st digit SW12 2nd digit OFF ON 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 ...

Page 19: ...P200 connection 9 52 3 8 inch P250 connection 12 7 1 2 inch Stop valve with service port 4 way valve Linear expansion valveA Thermistor TH32 Comp surface Muffler Ball valve 50 Strainer Oil return hole with strainer 40 Strainer 100 Strainer 100 Strainer 100 Refrigerant flow in cooling Refrigerant flow in heating Charge plug High pressure Blazing Thermistor TH8 Control protection HEX Stop valve Ther...

Page 20: ...minutes after the power circuit breaker is turned on 5 Perform the refrigerant collecting operation cooling test run Push the pump down SWP switch push button type on the control board of the outdoor unit The compressor and venti lators indoor and outdoor units start operating refrigerant collecting operation begins LED1 and LED2 on the control board of the outdoor unit are lit Only push the pump ...

Page 21: ... service 3There is no abnormality in electrical component controller board remote controller etc 1Re check the abnormal symptom 2Conduct trouble shooting and ascertain the cause of the trouble according to 10 5 TROUBLESHOOTING OF PROBLEMS 3Continue to operate unit for the time being if the cause is not ascertained 4There is no abnormality concerning of parts such as electrical component controller...

Page 22: ... F4 Remain Vane Cool mode Check the cold air blows out Heat mode Check the warm air blows out Press the F1 button to go through the operation modes in the order of Cool and Heat Check the auto vane with the F1 F2 buttons Press the button to return to Test run operation Press the button When the test run is completed the Test run menu screen will appear The test run will automatically stop after 2 ...

Page 23: ...the following screen will appear Check the error status stop the operation and consult your dealer Contact information dealer s phone number will appear if the information have been registered F1 F2 F3 F4 F1 F2 F3 F4 Error information Error reset Error reset Error code Error unit IU Ref address Unt Model name Serial No Reset Page Reset current error Error reset OK Cancel Main menu Reset error Rese...

Page 24: ...rror Unt dd mm yy Error history Cancel OK Delete error history Error history Check menu Error history deleted 2 Select Error history with the F1 or F2 button and press the button Select Check with the F1 or F2 button and press the button 3 Select Error history from the Check menu and press the button to view up to 16 error history records 4 records are shown per page and the top record on the firs...

Page 25: ...mote controller display turned off A and current operation mode are displayed 3 Press the button to activate mode then check whether cool air blows out from the unit 4 Press the button to activate mode then check whether warm air blows out from the unit 5 Press the button and check whether strong air blows out from the unit 6 Press the button and check whether the auto vane operates properly 7 Pre...

Page 26: ...Select Self check with the F1 or F2 button and press the button 1 Select Service from the Main menu and press the button 3 Check code unit number attribute will appear will appear if no error history is available 4 Resetting the error history Press the F4 button Reset on the screen that shows the error history A confirmation screen will appear asking if you want to delete the error history Press t...

Page 27: ...ear on the remote controller display if the correct voltage 8 5 12 V DC is not supplied to the remote control ler If this is the case check the remote controller wiring and indoor units OK No problems are found with the remote controller Check other parts for problems E3 6832 There is noise on the transmission line or the indoor unit or another remote controller is faulty Check the transmission li...

Page 28: ...mode is cancelled Procedure 1 Press the CHECK button twice 2 Press the TEMP buttons 3 Point the remote controller at the sensor on the indoor unit and press the HOUR button 4 Point the remote controller at the sensor on the indoor unit and press the ON OFF button Malfunction diagnosis method at maintenance service 10 3 3 Self diagnosis Wireless remote controller In case of trouble during operation...

Page 29: ...DICATOR lamp flashes Check code Symptom Remark Number of times Wireless remote controller Wired remote controller Beeper sounds OPERATION INDICATOR lamp flashes Check code Number of times Wireless remote controller Wired remote controller 1 P1 Intake sensor error P9 Pipe TH5 sensor error 2 P2 Pipe TH2 sensor error 3 E6 E7 Indoor outdoor unit communication error 4 P4 Drain sensor error Float switch...

Page 30: ...s a Connection of power supply terminal block TB1 b Connection of terminal on outdoor power circuit board 3 Check connection of the connector CNDC on the outdoor controller circuit board Check connection of the connector CNDC on the noise filter circuit board Refer to 10 9 TEST POINT DIAGRAM 4 Check connection of reactor DCL or ACL4 Refer to 8 WIRING DIAGRAM 5 a Check connection of outdoor noise f...

Page 31: ...t If EA is detected 4 6 Turn the power off once and on again to check Replace outdoor controller circuit board indoor controller board or indoor power board if abnormality occurs again 7 Check if refrigerant addresses SW1 3 to SW1 6 on outdoor controller circuit board are overlapping in case of group control system 8 Check transmission path and remove the cause Note The descriptions above 1 8 are ...

Page 32: ...erheat Cooling TH32 TH5 Heating TH32 TH6 increases All the conditions in A or B are detected simultaneously for 10 minutes continuous ly after 6 minutes past from compressor start up including the thermostat indica tion or recovery from defrosting Condition A Heating mode When discharge superheat is less than 70 C When the TH6 temp is more than the value obtained by TH7 5 When the condensing temp ...

Page 33: ...ething which causes temperature rise around outdoor unit Upper limit of ambient temperature is 46 C Turn off power and on again to check if U5 is displayed within 30 minutes If U4 is displayed instead of U5 follow the action to be taken for U4 5 Check resistance value of thermistor TH8 or temperature by microcomputer Thermistor TH8 Refer to 10 6 HOW TO CHECK THE PARTS SW2 on A Control Service Tool...

Page 34: ... on the outdoor noise filter circuit board 5 Defective input current detection circuit in outdoor power circuit board 6 Defective outdoor controller circuit board 1 Check the field facility for the power supply 2 Check the wiring between TB1 and out door noise filter circuit board 3 Check CN5 CNCT wiring 4 Replace outdoor noise filter circuit board 5 Replace outdoor power circuit board 6 Replace o...

Page 35: ...ection mode 1 TH7 TH3 4 C and TH5 Indoor room temperature 2 C Detection mode 2 TH7 TH3 2 C and TH5 Indoor room temperature 4 C and TH2 Indoor room temperature 4 C 2 Cooling mode TH6 TH7 2 C and TH3 TH7 2 C and Indoor room temperature Indoor liquid pipe temperature TH2 5 C Thermistor TH3 Outdoor liquid pipe temperature TH5 Indoor cond eva temperature TH6 Outdoor 2 phase pipe temperature TH7 Ambient...

Page 36: ...remote controller c When RC E3 or ERC 00 66 is dis played noise may be causing abnor mality Note If the unit is not normal after replacing indoor controller board in group control indoor con troller board of address 0 may be abnormal E1 or E2 Remote controller control board 1 Abnormal if data cannot be normally read from the nonvolatile memory of the remote controller control board Check code E1 2...

Page 37: ... if 1 receiving is detected 30 times continuously though indoor controller board has transmitted 0 1 Defective transmitting receiving circuit of indoor controller board 2 Noise has entered into power supply 3 Noise has entered into outdoor control wire 1 3 Turn the power off and on again to check If abnormality generates again replace indoor controller board E8 6840 Indoor outdoor unit communicati...

Page 38: ...n defrosting mode is over Heating range 3 Condenser Evaporator temperature TH5 intake temperature TH1 1 Slight temperature difference between indoor room temperature and pipe liquid or condenser evaporator temperature thermistor Shortage of refrigerant Disconnected holder of pipe liquid or condenser evaporator thermistor Defective refrigerant circuit 2 Converse connection of extension pipe on plur...

Page 39: ...sion of transmission 2 Data could not reach transmission wire for 8 to 10 minutes continuously because of noise etc Note The address and attribute displayed at remote controller indicate the controller that detected abnormality 1 Transmission processor could not transmit signal because short cycle voltage of noise and the like have entered into transmission wire continuously 2 Transmission quantit...

Page 40: ...r LOSSNAY at the same time for 2 minutes or more and turn the power on again If the cause of trouble is not in 1 5 above in single refrigerant system one outdoor unit controller of displayed address or attribute is defective If the cause of trouble is not in 1 5 above in different refrigerant system 2 or more outdoor units judge with 6 6 If address of abnormality source is the address that should ...

Page 41: ...or within 2 minutes of restart abnormality is detected 2 Contact failure of transmission wire of indoor unit or FRESH MASTER 3 Disconnection of transmission connector CN2M of indoor unit or FRESH MASTER 4 Defective transmitting receiving circuit of indoor unit or FRESH MASTER 6 If displayed address or attribute is LOSSNAY indoor unit detects abnormal ity when indoor unit transmits signal to LOSSNA...

Page 42: ...lied to remote controller however no display is indicated PLEASE WAIT is not displayed PLEASE WAIT is displayed 1Check LED2 on indoor controller board 1 When LED2 is lit Check the remote controller wiring for breaking or contact failure 2 When LED2 is blinking Check short circuit of remote controller wiring 3 When LED2 is not lit Refer to phenomena No 3 below 2Check the following Failure of remote...

Page 43: ...k if heat exchanger is clogged by inspecting discharging pressure Clean the heat exchanger 4 Remove the blockage 7 Remote controller display works normally and the unit performs heating operation however the capacity cannot be fully obtained 1 Linear expansion valve fault Opening cannot be adjusted well due to linear expansion valve fault 2 Refrigerant shortage 3 Lack of insulation for refrigerant...

Page 44: ... 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 indoor controller board Defective outdoor controller circuit board Refer to Self diagnosis action table in order to solve the trouble In case of communication errors the display of remote controller may n...

Page 45: ...e 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 connecting wire short circuits Bad wiring of the outdoor controller board The fuses on the outdoor controller circuit board are blown Check if miswiring breaking or poor contact is causing this problem Indoor ou...

Page 46: ... 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 address to 0 In case of the multiple grouping system recheck the refrigerant address again Defective indoor power board Replace the indoor power board Defective outdoor power circuit board Replace the outdoor pow...

Page 47: ... TB5 of the indoor unit Defective remote controller Replace the remote controller Breaking or poor contact of the remote controller wire Check if there is breaking or poor contact of the remote controller wire Check the voltage of the terminal block TB5 connecting the remote controller wire If it is not between 10 and 16 V DC the indoor controller board must be defective The remote controller wire...

Page 48: ... clear FILTER from the display See the operation manual that came with the product for how to clean the filters 3 STANDBY is displayed on the screen 3 This is displayed when the unit starts HEAT operation when the thermostat puts the compressor in operation mode or when the outdoor unit ends DEFROST operation and returns to HEAT operation The display will automatically disappear around 10 minutes ...

Page 49: ...door unit is controlling the airflow amount in order to keep the optimum operating condition 5 A sound similar to water flowing is heard from the unit 5 This is not a malfunction This is the sound which is heard when the refrigerant is flowing inside the indoor unit 2 The fan speed does not match the setting of the remote controller in HEAT operation The up down vane will be automatically set to h...

Page 50: ...The airflow direction does not change Up down vane left right louver 3 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 function for switching the air direction 3 If the air conditioner does not have that function NOT AVAILABLE will be displayed on the remote controller when AIR DIRECTION or LOUVER button is pressed So...

Page 51: ...down HEAT water drips down from the heat exchanger Note 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 expelled from the outdoor unit Batteries are being exhausted Replace them and press the reset button of remote controller The display of wireless remote controller gets dim or does not come on The indoor uni...

Page 52: ...er At the ambient temperature 20 C Solenoid valve coil 4 way valve 21S4 Motor for compressor MC Linear expansion valve LEV A Normal Abnormal Open or short Abnormal Open or short Refer to 5 3 COMPRESSOR TECHNICAL DATA Disconnect the connector then measure the resistance with a tester Winding temperature 20 C Normal Gray Black Gray Red Gray Yellow Gray Orange Abnormal 46 3 Open or short Refer to the...

Page 53: ...e fuse F5 on outdoor controller circuit board Power supply check Remove the connector CNF1 2 Measure the voltage in the outdoor controller circuit board TEST POINT 1 VDC between 1 and 4 of the fan connector VDC 250 330 V DC TEST POINT 2 VCC between 5 and 4 of the fan connector VCC 15 V DC Recover wiring Replace the outdoor controller circuit board Replace the fan motor Replace the outdoor controll...

Page 54: ... R50 17 k 2 B constant 4150 3 Rt 17exp 4150 273 t 323 1 1 Thermistor R120 7 465 k 2 B constant 4057 2 Rt 7 465exp 4057 273 t 393 1 1 Medium temperature thermistor Thermistor Heat Sink TH8 20 250 k 30 160 k 40 104 k 50 70 k 60 48 k 70 34 k 80 24 k 90 17 5 k 100 13 0 k 110 9 8 k High temperature thermistor Thermistor Comp Surface TH32 0 10 20 30 40 50 20 10 0 10 20 30 40 50 Temperature Resistance k ...

Page 55: ...more 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 the screw driv er handle while putting the screw driver to the linear expansion valve LEV M 1 6 4 4 3 2 1 1 Gray Orange Red Yellow Black 2 3 4 5 Connector LEV A LEV B LEV C 12 V DC Outdoor controller board Driv...

Page 56: ...ipes 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 to lead wire and main body is not wound by lead wire If the stopper is not firmly attached ...

Page 57: ...rgency operation the air conditioner will continuously be operated by supplying power and stopping it It can not be turned on or off by remote control and temperature control is not possible 4 Do not perform emergency heating operation for an extended period of time If the outdoor unit starts defrosting during this period cold air will blow out from the indoor unit 5 Do not perform emergency cooli...

Page 58: ...EAT 20 5 45 50 22 5 80 5 7 5 30 5 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 When the unit enters emergency operation and TH values are mismatched set the thermistors to open short And the unit runs emergency operation with the values listed above 2 If one thermistor is set to open short the values for SHd SC...

Page 59: ...lect SW5 Function switch TH3 Thermistor Liquid TH7 6 Thermistor Ambient 2 phase pipe VFG Voltage between right pins of PC5C and PC5D pin 3 and pin 4 Same as CNF17 4 VSP Voltage between pins of C5A C5B 0 V DC when stopped 1 6 5 V DC when operated LEV A Linear expansion valve SWP Pump down SW8 Pipe replace Wiring replace CNM Connect to A control service tool CNMNT Connect to M NET adapter CN5 CNVMNT...

Page 60: ...it board CNAC CNDC Connect to the outdoor controller circuit board CNDC LO1 LO2 LO3 POWER SUPPLY LO1 LO2 LO2 LO3 LO3 LO1 400 V AC OUTPUT Connect to the outdoor power circuit board TB L1 L2 L3 CNCT Primary current Connect to the outdoor power circuit board CN5 CNL Connect to the ACL4 60 Outdoor noise filter circuit board PUHZ P200YKA UK PUHZ P250YKA UK PUHZ P200YKAR1 UK PUHZ P250YKAR1 UK GD2 Connec...

Page 61: ...rd CN5 Detection of primary current Connect to the outdoor noise filter circuit board CNCT CN4 Connect to the outdoor controller circuit board CN4 CN2 Connect to the outdoor controller circuit board CN2 1 5 Power circuit board Transmitting signal to the controller board 0 5 V DC 2 5 Zero cross signal 0 5 V DC 3 4 Not used 6 5 16 V DC 7 5 16 V DC TB U TB V TB W Connect to the compressor MC Voltage ...

Page 62: ...ill start by the above operation 1 if all these conditions written below are satisfied Heat mode setting 10 minutes have passed since compressor started operating or previous compulsory defrosting finished Pipe temperature is less than or equal to 8 C Forced defrost will finish if certain conditions are satisfied Forced defrost can be done if above conditions are satisfied when DIP SW1 1 is change...

Page 63: ...ion by the switch operation Effective timing ON OFF DIP switch SW5 1 No function 2 Power failure automatic recovery 2 Auto recovery No auto recovery When power supply ON 3 4 5 No function 6 Model select Following SW5 6 reference SW7 4 1 Mode select 3 Demand function Low noise mode Always 2 No function 3 Max Hz setting cooling Max Hz cooling o 0 8 Normal Always 4 Max Hz setting heating Max Hz heati...

Page 64: ...de B On site arrangement C External input adapter PAC SC36NA E X Relay D Outdoor unit control board E Maximum 10 m F Power supply for relay A SW1 Orange 1 3 Brown Red E B F CNDM X X C D A Circuit diagram example Demand function B On site arrangement X Y Relay C External input adapter PAC SC36NA E D Outdoor unit control board E Maximum 10 m F Power supply for relay By performing the following modif...

Page 65: ...ed by outdoor unit Remote controller signal receiving error is detected by remote controller 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 indoor unit Serial communication error Communication between outdoor controller board and outdoor power board Communi...

Page 66: ...connected 2Measure resistance value of outdoor thermistors Abnormality of heat sink temperature 1Check if indoor outdoor units have a short cycle on their air ducts 2Measure resistance value of outdoor thermistor TH8 1Check the outdoor fan motor 2Check if connector TH3 on outdoor controller board is disconnected Abnormality of voltage 1Check looseness disconnection and converse connection of compr...

Page 67: ...eing postponed C5 is displayed during replacement operation 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 is turned on F5 E8 E9 EA Eb EC E0 E7 63H connector yellow is open Indoor outdoor communication error Signal receiving error Outdoor unit Indoor outdoor communication error Transmitt...

Page 68: ...undreds digit tens digit and ones digit are displayed by turns Example When 2450 hours 245 10 hours 0 5 s 0 5 s 2 s 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Compressor operating current 0 to 50 LEV A opening pulse 0 to 480 0 to 50 Omit the figures after the decimal fractions 0 to 480 When it is 100 pulse or more hundreds digit tens digit and ones digit are displayed by turns Example When 150 p...

Page 69: ...mber and code 52 to 221 When the temperature is 100 or more the hundreds digit tens digit and ones digit are displayed by turns Example When 130 0 5 s 0 5 s 2 s A Code display Code display 0 to 50 When no error history 0 and are displayed by turns When no error history 0 and are displayed by turns 1 ON 2 3 4 5 6 Thermostat ON time 0 to 999 Test run elapsed time 0 to 120 0 to 999 When it is 100 min...

Page 70: ...ng 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 set up 20 is displayed 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Indoor pipe temperature Cond Eva TH5 1 Indoor 1 39 to 88 39 to 88 When the temperature is 0 or less and temperature are displayed by turns 39 to 88 When the temperature is 0 or l...

Page 71: ... thermistor detects 100 or more hundreds digit tens digit and ones digit are displayed by turns Outdoor Ambient temperature TH7 39 to 88 39 to 88 When the temperature is 0 or less and temperature are displayed by turns Normal Overvoltage error Undervoltage error Input current sensor error L1 phase open error Abnormal power synchronous signal Display examples for multiple errors Overvoltage 01 Unde...

Page 72: ...onement Lighting Cancellation of postponement 00 is displayed in case of no postponement Code display Error history 3 Oldest Alternate display of abnormal unit num ber and code When no error history 0 and are displayed by turns 3 Outdoor pipe temperature Liquid TH3 6 Outdoor pipe temperature 2 phase TH6 7 Outdoor Ambient temperature TH7 8 Outdoor Heat sink TH8 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 ...

Page 73: ...0 to 200 40 to 200 When the temperature is 0 C or less and temperature are displayed by turns When the temperature is 100 C or more hundreds digit tens digit and ones digit are displayed by turns 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 15 15 15 15 The black square indicates a switch position 0 to 255 When the temperature is 100 C or more hundreds digit tens digit...

Page 74: ...00 01 02 04 08 10 Detected at Power board Power board Controller board Power board Power board Controlling status of compressor operating frequency 1 ON 2 3 4 5 6 Code display The following code will be a help to know the operating status of unit Display Compressor operating frequency control Display Compressor operating frequency control Primary current control Secondary current control 1 2 1 4 8...

Page 75: ...ed to all the units in the same refrigerant system Meaning of Function setting mode02 indoor temperature detecting No Indoor temperature ta No 1 Average data of the sensor on all the indoor units Initial setting ta A B 2 ta A B 2 ta A ta A No 2 The data of the sensor on the indoor unit that connected with remote controller ta A ta B ta A ta A No 3 The data of the sensor on main remote controller t...

Page 76: ...tting 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 refr...

Page 77: ...Service to make the maintenance setting Maintenance password is required Note The initial maintenance password is 9999 Change the default password as necessary to prevent unauthorized access Have the password available for those who need it If you forget your maintenance password you can initialize the password to the default password 9999 by pressing and holding the F1 and F2 buttons simultaneous...

Page 78: ... and change the setting number with the F3 or F4 button 1 Select Service from the Main menu and press the button Checking the indoor unit No When the button is pressed the target indoor unit will start fan operation If the unit is common or when running all units all indoor units for the selected refrigerant address will start fan operation F1 F2 F3 F4 Function setting Ref address Sending data 5 W...

Page 79: ...ireless 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 Press 01 to specify the indoor unit whose unit number is 01 Direct the wireless remote controller toward the receiver of the indoor unit and press the button Notes 1 If a unit number that cannot be recognized by the unit is entered 3 beeps of 0 4 ...

Page 80: ...urns the backlight on and it will stay lit for a certain period of time depending on the screen Backlit LCD This lamp lights up in green while the unit is in operation It blinks while the remote controller is starting up or when there is an error ON OFF lamp Main display Press to change the operation mode Main menu Press to move the cursor down Function button F1 Main display Press to decrease tem...

Page 81: ... Louver Vent Lossnay High power Weekly timer Restriction Maintenance Initial setting ON OFF timer Auto Off timer Temp range Operation lock Manual vane angle Main Sub Timer Main display Contrast Display details Auto mode Administrator password Language selection Service Input maintenance info Function setting Lossnay City Multi only Check Self check Maintenance password Remote controller check Test...

Page 82: ...information need to be registered in advance to be displayed Maintenance Auto descending panel Auto descending panel Optional parts Up Down you can do Manual vane angle Use to set the vane angle for each vane to a fixed position Initial setting Main Sub When connecting two remote controllers one of them needs to be designated as a sub controller Clock Use to set the current time Main display Use t...

Page 83: ...eck with the F1 or F2 button and press the button 2 Set the Refrigerant address and Request code Select the item to be changed with the F1 or F2 button Select the required setting with the F3 or F4 button Ref address setting 0 15 Request code setting Press the button Data will be collected and displayed F1 F2 F3 F4 Request code Request Request Request code Ref address Request code Cursor Ref addre...

Page 84: ...emperature 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 Unit No 3 Heat mode 4 deg correction Indoor unit Intake air temperature Unit No 4 Heat mode 4 deg correction Indoor unit Liquid pipe temperature Unit No 1 Indoor unit Liquid pipe temperature Unit No 2 Indoor unit Liquid pipe temperature Unit No ...

Page 85: ...history 1 latest Outdoor unit Error postponement history 2 previous Outdoor unit Error postponement history 3 last but one 0 255 0000 Not connected Examples Ver 5 01 Auxiliary information displayed after version information Examples Ver 5 01 A000 Displays postponement code is displayed if no postponement code is present Displays postponement code is displayed if no postponement code is present Dis...

Page 86: ...ry 2 second to last Error history 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 Compressor Number of operation times at time of error Comp surface temperature TH32 at time of error Outdoorunit Liquidpipe1temperature TH3 attimeoferror Outdoor unit 2 phas...

Page 87: ...e 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 information Indoor unit SW3 information Wireless pair No indoor control board side setting Indoor unit SW5 information Indoor unit Microprocessor version information Indoor unit Microprocessor version inf...

Page 88: ...lay Operation mode 0 STOP FAN C COOL DRY H HEAT d DEFROST Relay output state Display Power currently Compressor Four way valve Solenoid valve supplied to compressor Unit No 4 state Unit No 3 state Unit No 2 state Unit No 1 state Display State 0 Normal 1 Preparing for heat operation 2 3 4 Heater is ON 5 Anti freeze protection is ON 6 Overheat protection is ON 7 RequestingcompressortoturnOFF F There...

Page 89: ...V1 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 2 Display 52C SV2 SS 0 1 2 3 4 5 6 7 ON ON ON ON ON ON ON ON ON ON ON ON Error content U9 Request code 55 Data display Error content 1 Error content 2 0 0 Error content 1 Detected Display Overvoltage Undervoltage L1 phase...

Page 90: ...etting display 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 1 Setting information 2 0 0 Setting information 1 Display Defrost mode 0 Standard 1 For high humidity Setting information 2 Display Single Heat pump 3 phase cooling only 0 Single phase Heat pump 1 Cooling on...

Page 91: ...ting state 00 No 0 01 No 1 J41 disconnected 02 No 2 J42 disconnected 03 No 3 J41 J42disconnected Wireless pair No indoor control board side setting Request code 165 Data display 0 0 See the table on the right Display Model setting state Display Model setting state 00 20 01 21 02 22 03 23 04 24 05 25 06 26 07 27 08 28 09 29 0A 2A 0b 2b 0C 2C 0d 2d 0E 2E 0F 2F 10 30 11 PEA RP200 250GAQ 31 12 32 13 3...

Page 92: ... mode setting Cool Heat Normal Press the button Fixed operation will start Stable mode will take approx 20 minutes 1 2 13 EASY MAINTENANCE FUNCTION Smooth maintenance Return Page Ref address Cool Sub cool OU TH4 temp OU TH6 temp OU TH7 temp Reduces maintenance work drastically Enables you to check operation data of the indoor and outdoor units by remote controller Furthermore use of maintenance st...

Page 93: ...appear 1 1 Refrigerant address 00 Twin Refrigerant address 00 Outdoor unit Indoor unit 02 Indoor unit 01 Outdoor unit Remote controller Remote controller Indoor unit 01 Refrigerant address Single refrigerant system In the case of single refrigerant system the refrigerant address is 00 and no operation is required Simultaneoustwin tripleunitsbelongtothiscategory single refrigerant system Multi refr...

Page 94: ...changer temperature 7 Indoor intake air temperature Cool Classification Item Result Inspection Temperature difference Heat Inspection Temperature difference Stable Unstable Stable Unstable Notes Fixed Hz operation may not be possible under the following tempera ture ranges A In cool mode outdoor intake air temperature is 40 or higher or indoor intake air temperature is 23 or lower B In heat mode o...

Page 95: ...ee Photo 1 For the each fan motor on top and under 3 Remove the screw of nut 1 for front M6 then slide the propeller fan forward to remove it For the each fan motor on top and under 4 Disconnect the connectors CNF1 WHT and CNF2 WHT on the controller circuit board in the electrical parts box See Photo 4 5 Loosen the clamp for the lead wire on motor support and separator 6 Release the lead wire from...

Page 96: ... the clamps fasteners and cable strap for the lead wire in the electrical parts box and separator 7 Loosen the lead wires fixed to the pipes with bands 8 To disconnect the COMP lead wire remove the terminal cover then remove the COMP lead wire fixing screws 4 for front 5 x 12 9 Remove the electrical parts box fixing screws 2 for front 4 x 10 then slide the electrical parts box upward to remove it ...

Page 97: ...ed from the outdoor unit Note When reassembling the electrical parts box make sure the wirings are correct Photo 5 Photo 6 Photo 8 Photo 7 Photo 9 Controller circuit board C B Screw Screw Screws Screws Screws Screws Screw Noise filter base Reactor Cont base Power circuit board P B OPERATING PROCEDURE Noise filter circuit board N F Screw 97 Photo 10 Electrical parts box Thermistor 2 phase pipe TH6 ...

Page 98: ...ing thermistor Ambient TH7 replace it together with thermistor 2 phase pipe TH6 since they are combined together Refer to procedure No 4 in the previous page to remove the thermistor 2 phase pipe TH6 Damper Thermistor Liquid TH3 7 Removing the thermistor Liquid TH3 and thermistor Comp surface TH32 1 Remove the service panel See Photo 1 2 Disconnect the connector TH3 WHT and TH32 BLK on the control...

Page 99: ... panel front See Photo 1 5 Remove the cover panel rear See Photo 1 6 Remove the valve bed See Photo 14 7 Remove the side panel R 8 Recover refrigerant Removing the 4 way valve 9 Remove the 4 way valve coil See photo 13 10 Remove the welded part of 4 way valve 4 positions to remove the 4 way valve Removing the LEV 9 Remove the LEV coil See photo 13 10 Remove the welded part of 4 way valve 4 positio...

Page 100: ... fixing screws 4 for front 4x10 then slide the separator upward to remove it The separator is fixed to a hook of the side plate 11 Recover refrigerant 12 Remove the welded part of compressor 2 positions 13 Remove the 3 compressor fixing nuts M6 to remove the compressor Note 1 Recover refrigerant without spreading it in the air Note 2 The compressor can be easily removed by removing separator Photo...

Page 101: ...101 OCH582B ...

Page 102: ...ight 2014 MITSUBISHI ELECTRIC CORPORATION Distributed in Jun 2015 No OCH582 REVISED EDITION B Distributed in Jan 2015 No OCH582 REVISED EDITION A Distributed in Oct 2014 No OCH582 Made in Japan New publication effective Jun 2015 Specifications are subject to change without notice ...

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Mitsubishi Electric PUHZ-P200YKA.UK, Service Manual

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