Mitsubishi Electric PUZ-ZM60VHA Service Manual Download Page 107

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107

1. Removing the service panel and top panel

(1) Remove 3 service panel fixing screws (5 × 12) and slide

the hook on the right downward to remove the service

panel.

(2) Remove screws (3 for front, 3 for rear/5 × 12) of the top

panel and remove it.

2. Removing the fan motor (MF1)

(1) Remove the service panel. (See Photo 1)

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

(3) Remove 4 fan grille fixing screws (5 × 12) to detach the fan

grille. (See Photo 1)

(4) Remove a nut (for right handed screw of M6) to detach the

propeller. (See Photo 2)

(5) Disconnect the connector CNF1 on controller circuit board

in electrical parts box.

(6) Remove 4 fan motor fixing screws (5 × 20) to detach the

fan motor. (See Photo 3)

Note: Tighten the propeller fan with a torque of 5.7

0.3 N·m

Photo 4

Fan motor fixing screws

Fan

motor

(MF1)

Fan motor

fixing screws

Photo 3

Photo 2

Propeller

Front panel

Front panel fixing screws

Nut

3. Removing the electrical parts box

(1) Remove the service panel. (See Photo 1)

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

(3) Disconnect the indoor/outdoor connecting wire from

terminal block.

(4) Disconnect the connector CNF1, LEV-A and LEV-B on the

controller circuit board.

• CNF1 : Fan motor

• LEV-A, LEV-B : LEV

(5) Disconnect the pipe-side connections of the following parts.

• Thermistor <Liquid> (TH3)

• Thermistor <Discharge> (TH4)

• Thermistor <2-phase pipe, Ambient> (TH7/6)

• Thermistor <Heat sink> (CN3)

• High pressure switch (63H)

• 4-way valve coil (21S4)

• Thermistor <Comp. surface> (TH33)

(6) Remove the terminal cover and disconnect the compressor

lead wire.

(7) Remove an electrical parts box fixing screw (4 × 10) and

detach the electrical parts box by pulling it upward.

The electrical parts box is fixed with 2 hooks on the left

and 1 hook on the right.

PUZ-ZM60VHA PUZ-ZM71VHA

Top panel fixing screws

Top panel

Service panel

fixing screws

Service panel

Grille fixing

screws

Fan grille

Slide

Side panel (R)

Cover panel

(Rear)

Cover panel

(Front)

Photo 1

Electrical parts box

Controller circuit

board (C.B.)

Electrical parts

box fixing screws

Terminal block

(TB1)

OPERATING PROCEDURE

PHOTOS

OCH653

Summary of Contents for PUZ-ZM60VHA

Page 1: ...0 TROUBLESHOOTING 28 11 FUNCTION SETTING 83 12 MONITORING THE OPERATION DATABY THE REMOTE CONTROLLER 91 13 EASY MAINTENANCE FUNCTION 100 14 DISASSEMBLY PROCEDURE 102 PUZ ZM35VKA PUZ ZM50VKA Note This manual describes service data of the outdoor units only No OCH653 April 2017 SPLIT TYPE HEAT PUMP AIR CONDITIONERS Outdoor unit Model Name Service Ref PUZ ZM35VKA PUZ ZM35VKA PUZ ZM50VKA PUZ ZM50VKA P...

Page 2: ...e 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 Use a newly flared pipe Avoid using thin pipes Use a vacuum pump with a reverse flow check valve Vacuum pump oil may flow back into refrigerant cycle and that can cause deterioration of refrigerant oil etc 1 REFERENCE MANUAL Model Name...

Page 3: ...refrige rant can cause deterioration of refrigerant oil etc Handle tools with care If dirt dust or moisture enters into refrigerant cycle that can cause deterioration of refrigerant oil or malfunction of com pressor Use the following tools specifically designed for use with R32 refrigerant The following tools are necessary to use R32 refrigerant Flare tool Electronic refrigerant charging scale Vac...

Page 4: ...nt leaks and accumulates it may ignite or poisonous gases may be released 11 Do not install the unit in places where refrigerant may build up or places with poor ventilation such as a semi base ment or a sunken place in outdoor Refrigerant is heavier than air and inclined to fall away from the leak source 12 Do not use means to accelerate the defrosting process or to clean other than those recomme...

Page 5: ...igeration Equipment Where electrical components are being changed they shall be fit for the purpose and to the correct specification At all times the manufacturer s maintenance and service guidelines shall be followed If in doubt consult the manufacturer s technical department for assistance The following checks shall be applied to installations using flammable refrigerants The charge size is in a...

Page 6: ...ures shall be used However for flammable refrigerants it is important that best practice is followed since flammability is a considera tion The following procedure shall be adhered to remove refrigerant purge the circuit with inert gas evacuate purge again with inert gas open the circuit by cutting or brazing The refrigerant charge shall be recovered into the correct recovery cylinders For applian...

Page 7: ...nders ensure that only appropriate refrig erant recovery cylinders are employed Ensure that the correct number of cylinders for holding the total system charge are available All cylinders to be used are designated for the recovered refrigerant and labelled for that refrigerant i e special cylinders for the recovery of refrigerant Cylinders shall be complete with pressure relief valve and associate...

Page 8: ...are damaged 8 2 3 PRECAUTIONS WHEN REUSING EXISTING R22 R410a REFRIGERANT PIPES 1 Flowchart 3 Service tools Use the below service tools as exclusive tools for R32 refrigerant No Tool name Specifications 1 Gauge manifold Only for R32 Use the existing fitting specifications UNF1 2 Use high tension side pressure of 5 3MPa G or over 2 Charge hose Only for R32 Use pressure performance of 5 09MPa G or o...

Page 9: ...7 0 22 0 24 0 27 0 36 0 Nominal dimensions inch Flare nut dimensions Outside diameter mm Dimension B R32 R410a 36 0mm for indoor unit of RP100 125 and 140 R22 mm Dimension A Dimension B Tools and materials Use R410A tools Can R22 tools be used Can R407C tools be used Can R410a tools be used Gauge manifold Air purge refrigerant charge and operation check Tool exclusive for R410A Charge hose Tool ex...

Page 10: ...es is open and in a sufficiently large space with out depressions 2 5 Minimum installation area If you unavoidably install a unit in a space where all four sides are blocked or there are depressions confirm that one of these situations A B or C is satisfied Note These countermeasures are for keeping safety not for specification guarantee A Secure sufficient installation space minimum installation ...

Page 11: ...the spec nameplate or installation manual For the amount to be added locally refer to the installation manual Install the indoor unit so that the height from the floor to the bottom of the indoor unit is h0 for wall mounted 1 8 m or more for ceiling suspended cassette and ceiling concealed 2 2 m or more There are restrictions in installation height for each model so read the installation manual fo...

Page 12: ...ntrol 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 PUZ ZM35VKA PUZ ZM50VKA PUZ ZM60VHA PUZ ZM71VH...

Page 13: ...h Comp shell thermo Single 50Hz 230V OUTDOOR UNIT REFRIGERANT PIPING 46 101 2 0 4 4 0 35 FW68S 0 35 FW68S 46 101 2 0 4 4 A kW W kW K min CFM dB dB mm inch mm inch mm inch kg lb kg lb L mm inch mm inch Power supply phase cycle voltage Max current External finish Refrigerant control Compressor Model Motor output Starter type Protection devices Crankcase heater Heat exchanger Fan Fan drive o No Fan m...

Page 14: ...l charged 10 m 20 m 30 m 40 m 50 m 55 m 75 m PUZ ZM35VKA PUZ ZM50VKA 2 0 2 0 2 0 2 15 2 3 2 0 PUZ ZM60VHA PUZ ZM71VHA 2 8 2 8 2 8 3 2 3 6 3 6 2 8 5 2 COMPRESSOR TECHNICAL DATA at 20 Service Ref PUZ ZM35VKA PUZ ZM50VKA PUZ ZM60VHA PUZ ZM71VHA Compressor model SVB140FFSM SVB172FFUM1 Winding Resistance U V 1 45 1 16 U W 1 45 1 16 W V 1 45 1 16 OCH653 ...

Page 15: ...0 40 30 20 10 63 125 250 500 1000 2000 4000 8000 OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 µbar BAND CENTER FREQUENCIES Hz 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 µbar BAND CENTER FREQUENCIES Hz PUZ ZM60VHA PUZ ZM71VHA COOLING MODE HE...

Page 16: ...m C C C C C Indoor unit D B W B D B D B W B PLA ZM35EA PLA ZM50EA PLA ZM60EA PLA ZM35EA PLA ZM50EA PLA ZM60EA Cooling 3 600 0 71 Heating 4 100 0 82 Cooling 5 000 1 11 Heating 6 000 1 36 Cooling 6 100 1 45 Heating 7 000 1 71 3 17 2 51 1 12 65 42 15 5 27 19 17 5 35 24 0 97 0 18 3 53 2 04 0 74 72 34 9 5 20 15 30 8 7 6 4 80 2 68 1 02 76 44 13 5 27 19 15 5 35 24 0 81 0 17 5 85 2 44 0 69 87 41 6 5 20 15...

Page 17: ...harge plug Service panel Earth terminal Terminal connection 164 5 99 5 23 2 497 7 193 5 43 35 Foundation bolt height FOUNDATION Less than Please secure the unit firmly with 4 foundation M10 bolts Bolts washers and nut must be purchased locally FOUNDATION BOLTS Piping and wiring connection can be made from the rear direction only PIPING WIRING DIRECTION 18 mm 350mm or more Basically open 100mm or m...

Page 18: ...ring hole 2 27Knock Out Rear trunking hole Knock Out Rear piping hole Knock Out 63 73 23 55 27 92 65 45 40 9 2 Power supply wiring hole 2 27Knock Out Right trunking hole Knock Out Right piping hole Knock Out Piping Knock Out Hole Details Power supply wiring hole 2 27Knock Out 63 73 75 40 92 92 27 23 55 19 92 Over 500mm Over 100mm Please secure the unit firmly with 4 foundation M10 bolts Bolts and ...

Page 19: ...19 7 WIRING DIAGRAM PUZ ZM35VKA PUZ ZM50VKA OCH653 ...

Page 20: ...20 PUZ ZM60VHA PUZ ZM71VHA OCH653 ...

Page 21: ... Line Without N Line it could cause damage to the unit 21 8 WIRING SPECIFICATIONS 8 1 FIELD ELECTRICAL WIRING power wiring specifications 1 2 S1 S2 S3 S1 S2 S3 Indoor outdoor unit connection cable Indoor unit Unit power supply Outdoor unit Remote controller L B N B Earth leakage breaker C wiring circuit breaker or isolating switch C B B Earth leakage breaker C wiring circuit breaker or isolating s...

Page 22: ... the appropriate labels to the units according to the wiring method ON OFF Set the SW8 3 to ON 1 2 SW8 3 Connectors connections when shipped from the factory are for indoor unit power supplied from outdoor unit Indoor unit power supplied from outdoor unit when shipped from factory If the indoor and outdoor units have separate power supplies change the connections of the connectors as shown in the ...

Page 23: ...1 o Min 2 5 Indoor unit Outdoor unit earth Wire No o Size mm Be sure to connect the indoor outdoor connecting cables directly to the units no intermediate connections Intermediate connections can lead to communication errors if water enters the cables and causes insufficient insulation to ground or a poor electrical contact at the intermediate connection point Indoor unit Outdoor unit Indoor Outdo...

Page 24: ...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 25: ...FF 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 1s digit SW12 10s 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 1 2...

Page 26: ...expansion valve A Strainer 100 Muffler Stop valve with service port Distributor Thermistor TH7 Ambient Heat exchanger Refrigerant LIQUID pipe connection 9 52 3 8 Stop valve with service port Strainer 100 Power receiver Linear expansion valve B Linear expansion valve A Strainer 100 Thermistor TH6 2 phase pipe Thermistor TH3 Liquid High pressure switch 63H Thermistor TH4 Discharge Thermistor TH33 Co...

Page 27: ...o 4 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 ventilators 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 pu...

Page 28: ...service 3There is no abnormality in electrical component controller board remote controller etc 1Re check the abnormal symptom 2Conduct troubleshooting 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 b...

Page 29: ...emain Vane Cool mode Check the cold air blows out Heat mode Check the heat 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 hours Tes...

Page 30: ...s 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 has been registered 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 Reset button bl...

Page 31: ...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 first page in...

Page 32: ... 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 Press the ON OFF button to stop the test run Notes 1 Point the remote controller towards the indoor unit receiver while following steps 2 to 7 2 It is not possible to run in FAN DRY or AUTO mode MODE MODE COOL HEAT TEST RUN FAN VANE TEST ...

Page 33: ...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 the F4 b...

Page 34: ...he 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 line and t...

Page 35: ...he indoor unit and press the ON OFF button Malfunction diagnosis method at maintenance service 10 3 3 Self diagnosis for wireless remote controller Type C When a malfunction occurs to air conditioner both indoor unit and outdoor unit will stop and operation lamp blinks to inform unusual stop ON OFF TEMP FAN VANE MODE CHECK LOUVER TEST RUN AUTO STOP AUTO START h min RESET SET CLOCK CHECK CHECK disp...

Page 36: ...eck 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 connector CN4F open 5 ...

Page 37: ...ction of power supply terminal block TB1 2 Check following items 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 outdoor power circuit board ZM60 71 Refer to 10 9 TEST POINT DIAGRAM 4 Check connection of reactor DCL o...

Page 38: ...unit 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 a...

Page 39: ...4 TH5 Heating TH4 TH6 increases All the conditions in A or B are detected simultaneously for 10 minutes continu ously after 6 minutes past from compres sor start up including the thermostat indication or recovery from defrosting Condition A Heating mode When discharge superheat is less than 70 When the TH6 temp is more than the value obtained by TH7 5 When the condensing temp of TH5 is less than 3...

Page 40: ...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 Refer to 10 10 FUNCTION OF SWITCHES CONNECTORS AND JUMPERS 6 Replace outdoor power circuit board 7 Replace outdoor controller circuit board U6 4250 Power module Check abnormality by ...

Page 41: ...it board ZM35 50 outdoor power circuit board ZM60 71 3 Replace outdoor controller circuit board 08 Abnormal power synchronous signal No input of power synchronous signal to power circuit board Power synchronous signal of 44 Hz or less or 65 Hz or more is detected on power circuit board 1 Distortion of power source voltage noise superimposition 2 Disconnection or loose connection of earth wiring 3 ...

Page 42: ...k the dip switch setting of outdoor con troller circuit board Refer to Model Select in 1 Function of switches in Refer to 10 10 FUNCTION OF SWITCHES CONNECTORS AND JUMPERS UH 5300 Current sensor error Abnormal if current sensor detects 1 0 A to 1 0 A during compressor operation This error is ignored in case of test run mode 1 Disconnection of compressor wiring 2 Defective circuit of current sensor...

Page 43: ...eceive normally any data from remote controller board or from other indoor controller board for 3 minutes Check code E4 2 Indoor controller board cannot receive any signal from remote controller for 2 minutes Check code E4 1 Contact failure at transmission wire of remote controller 2 All remote controllers are set as sub remote controller In this case E0 is displayed on remote controller and E4 is...

Page 44: ... Check LED display on outdoor controller circuit board Connect A Control service tool PAC SK52ST Refer to EA to EC item if LED displays EA to AC 1 Check disconnecting or looseness of indoor outdoor unit connecting wire of indoor unit or outdoor unit Check all the units in case of twin triple quadruple indoor unit system 2 4 Turn the power off and on again to check If abnormality generates again re...

Page 45: ...standing type indoor unit PSA KA 1 Alter the connection referring to the com bination as shown in the case column P8 Pipe temperature Cooling mode Detected as abnormal when the pipe temperature is not in the cooling range 3 minutes after compressor starts and 6 minutes after the liquid or condenser evaporator pipe is out of cooling range Note 1 It takes at least 9 minutes to detect Note 2 Abnormal...

Page 46: ... in outdoor unit 3 Transmission are mixed with others and occupation rate on transmission wire rose because of defective repeater a function to connector or disconnect transmission of control and central control system of outdoor unit then abnormality is detected 1 Check if transmission wire of indoor unit FRESH MASTER LOSSNAY or remote controller is not connected to terminal block for central con...

Page 47: ...igerant system 2 or more outdoor units judge with 6 6 If address of abnormality source is the address that should not exist there is the unit that memorizes nonexistent address information Delete useless address information with manual setting function of remote controller Only the system FRESH MASTER or LOSSNAY are connected to or the system that is equipped with group setting of different refrig...

Page 48: ...r CN2M of indoor unit 5 Defective transmitting receiving circuit of indoor unit or LOSSNAY 7 If displayed address or attribute is non existent 1 The unit of former address does not exist as address switch has changed while the unit was energized 2 Abnormality is detected when indoor unit transmits signal because the address of FRESH MASTER and LOSSNAY are changed after sequen tial operation of FRE...

Page 49: ...POINT DIAGRAM 3 When pressing the remote controller operation switch the OPERATION display is appeared but it will be turned off soon 1 After cancelling to select function from the remote controller the remote controller operation switch will be not accepted for approx 30 seconds 1Normal operation 4 Even controlling by the wireless remote controller no beep is heard and the unit does not start ope...

Page 50: ...ct leakage by checking the temperature and opening Check pipe connections for gas leakage 3 Check the insulation 4 Open intake grille and check the filter Clean the filter by removing dirt or dust on it 5 If the filter is clogged indoor pipe temperature rises and discharging pressure increases Check if heat exchanger is clogged by inspecting discharging pressure Clean the heat exchanger 6 Remove t...

Page 51: ... after turning on the main power Normal The startup 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 no...

Page 52: ...re 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 o...

Page 53: ... 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 54: ...B5 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 V DC and 16 V DC the indoor controller board must be defective The remote controller w...

Page 55: ... 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 56: ...tdoor 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 ...

Page 57: ... 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 doesn t have that function NOT AVAILABLE will be displayed on the remote controller when AIR DIRECTION or LOUVER button is pressed So...

Page 58: ...down Heating 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 ...

Page 59: ...8 Abnormal Open or short Normal Red White Red Orange Red Yellow Red Blue Abnormal 46 4 Measure the resistance between the terminals with a tester At the ambient temperature 20 C Solenoid valve coil 4 way valve 21S4 Motor for compressor MC Linear expansion valve LEV A LEV B For ZM35 71 Normal Abnormal Open or short Abnormal Open or short Refer to 5 2 COMPRESSOR TECHNICAL DATA ZM35 71 Open or short ...

Page 60: ...1 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 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 outdoor controller board Replace the fan motor Replace outdoor controlle...

Page 61: ...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 Discharge TH4 Thermistor Comp surface TH33 0 10 20 30 40 50 20 10 0 10 20 30 40 50 Temperature ...

Page 62: ...lve is locked 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 Red Blue Orange Yellow White 2 3 4 5 Connector LEV A LEV B 12 V DC Outdoor controller bo...

Page 63: ...sure to attach the stopper to pipe B B A 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 ...

Page 64: ...it 3 During emergency 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 ...

Page 65: ... HEAT 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 ...

Page 66: ...tput Compressor operating signal Abnormal signal LEV A B Linear expansion valve CNF1 Connect to the fan motor 1 4 250 330 V DC 5 4 15 V DC 6 4 0 6 5 V DC 7 4 15 V DC When stopped 7 5 V DC When operated 0 15 V pulse TH4 Thermistor Discharge TH3 Thermistor Liquid TH7 6 Thermistor Ambient 2 phase pipe TH33 Thermistor Comp surface 7 6 5 4 1 63H High pressure switch VSP Voltage between pins of C5A C5B ...

Page 67: ...ng 63H High pressure switch SW4 Test operation SW6 Model select SW5 Function switch TH4 Thermistor Discharge 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 topped 1 6 5 V DC when operated LEV A B Linear expansion valve SWP Pump down SW8 Pipe replace Wiring re...

Page 68: ... 3 Connect to the out door controller circuit board CNDC N1 N L P1 N2 W2 V2 U2 P2 N3 W3 V3 U3 P3 68 Outdoor power circuit board PUZ ZM60VHA PUZ ZM71VHA Brief Check of DIP IPM and DIODE MODULE Usually they are in a state of being short circuited if they are broken Measure the resistance in the following points connectors etc If they are short circuited it means that they are broken 1 Check of DIP I...

Page 69: ... will 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 manual defrost is finished Pipe temperature is less than or equal to 8 C Manual defrost will finish if certain conditions are satisfied Manual defrost can be done if above conditions are satisfied when DIP SW1 1 is changed ...

Page 70: ...of Switch Switch No Function Action 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 6 No function 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 heating o 0 ...

Page 71: ...ise mode B On site arrangement C External input adapter PAC SC36NA E X Relay D Outdoor unit control board E Max 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 Max 10 m F Power supply for relay By performing the following modific...

Page 72: ...controller board 4Re check error by turning off power and on again P 44 Indoor outdoor unit communication error transmitting error is detected by indoor unit E7 P 44 Indoor outdoor unit communication error signal receiving error is detected by outdoor unit P 44 E8 Indoor outdoor unit communication error transmitting error is detected by outdoor unit P 44 E9 3 blinking Remote controller signal rece...

Page 73: ...nits have a short cycle on their air ducts 2Measure resistance value of outdoor thermistor TH8 P 40 7 blinking Abnormality of voltage U9 1Check looseness disconnection and converse connection of compressor wiring 2Measure resistance value among terminals on compressor using a tester 3Check if power supply voltage decreases 4Check the wiring of CN52C P 41 4 blinking 1 blinking Abnormality of room t...

Page 74: ...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 Transmitting error Outdoor unit Miswiring of indoor outdoor unit connec...

Page 75: ...s 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 Note 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 pu...

Page 76: ...er 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 minut...

Page 77: ...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 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...

Page 78: ...00 When the temperature is 0 or less and temperature are displayed by turns When the thermistor detects 100 or more hundreds digit tens digit and ones digit are displayed by turns Outdoor ambient temperature TH7 60 to 91 60 to 91 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 Abnorm...

Page 79: ... postponement 00 is displayed in case of no postponement Code display Error history 3 Oldest Alternate display of abnormal unit number 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 3 4 5 6 1 ON 2 3 4 5 6 Error ther...

Page 80: ...e displayed by turns Example When 15 C 0 5 s 0 5 s 2 s Outdoor pipe temperature 2 phase TH6 on error occurring 60 to 91 60 to 91 When the temperature is 0 C or less and temperature are displayed by turns Example When 15 C 0 5 s 0 5 s 2 s Outdoor ambient temperature TH7 on error occurring 60 to 91 60 to 91 When the temperature is 0 C or less and temperature are displayed by turns Example When 15 C ...

Page 81: ...to 88 When the temperature is 0 C or less and temperature are displayed by turns Indoor pipe temperature Cond Eva TH5 3 Indoor 3 39 to 88 39 to 88 When the temperature is 0 C or less and temperature are displayed by turns When there is no indoor unit 00 is displayed 50 1 1 ON 2 3 4 5 6 Discharge superheat on error occurring SHd 0 to 255 Cooling TH4 or TH33 TH6 Heating TH4 or TH33 TH5 Indoor pipe t...

Page 82: ...p erature rise of discharge temperature Preventive control for excessive temp erature rise of condensing temperature Frosting preventing control Preventive control for excessive temp erature rise of heatsink Example The following controls are activated Primary current control Preventive control for excessive tempe rature rise of condensing temperature Preventive control for excessive tempe rature ...

Page 83: ... 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 ta C ta C ta C ta C OUTDOOR INDOOR REMOTE MAIN REMOTE SUB INDOOR OUTDOOR INDOOR REMOTE MAIN REMOTE SUB OU...

Page 84: ...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 simultaneously for t...

Page 85: ...tting 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 Function setting Ref address Sending data 5 When the settings are completed...

Page 86: ...ss 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 Note 1 If a unit number that cannot be recognized by the unit is entered 3 beeps of 0 4 second...

Page 87: ...ver of the indoor unit and press the button Current setting number 1 1 beep 1 second 2 2 beep 1 second each 3 3 beep 1 second each 4 Selecting the setting number Use the button to change the Setting number C Fig 11 4 Direct the wireless remote controller toward the receiver of the indoor unit and press the button 5 To select multiple functions continuously Repeat select 3 and 4 to change multiple ...

Page 88: ...ton turns 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 decreas...

Page 89: ...er 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 Check Self check Maintenance password Remote controller check Test run Clock Auto descending pa...

Page 90: ...intenance 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 3D i see Sensor Use to set the following functions for 3D i see Sensor Air distribution Energy saving option Seasonal airflow Initial setting Main Sub When connecting 2 remote controllers one of them needs to be designated as a sub co...

Page 91: ...th 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 address Req...

Page 92: ...on Indoor unit Intake air temperature Unit No 2 Heat mode 4 degrees correction Indoor unit Intake air temperature Unit No 3 Heat mode 4 degrees correction Indoor unit Intake air temperature Unit No 4 Heat mode 4 degrees correction Indoor unit Liquid pipe temperature Unit No 1 Indoor unit Liquid pipe temperature Unit No 2 Indoor unit Liquid pipe temperature Unit No 3 Indoor unit Liquid pipe tempera...

Page 93: ...y 1 latest Outdoor unit Error postponement history 2 previous Outdoor unit Error postponement history 3 last but one 0 to 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 Displa...

Page 94: ...r history 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 Discharge temperature at time of error Outdoorunit Liquidpipe1temperature TH3 attimeoferror Outdoor unit Liquid ...

Page 95: ...sioninformation Examples Ver 5 01 A000 A000 1 hour 10 hours Ver For indoor fan phase control For indoor fan pulsation control For indoor DC brushless motor control Indoor Fan operating time After filter is reset Indoor Total operating 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 Capacity setting info...

Page 96: ...ode 50 Data display Operation mode Display 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 ...

Page 97: ...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 98: ...setting 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 o...

Page 99: ...25 02 22 12 140 03 25 13 160 04 28 14 200 05 32 15 224 06 35 36 16 250 07 40 17 280 08 45 18 09 50 19 0A 56 1A 0b 63 1b 0C 71 1C 0d 80 1d 0E 90 1E 0F 100 1F Display Pair No setting 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 OCH653 ...

Page 100: ...me COMP On Off COMP frequency A Hz Hr times Hr Ref address Cool Ref address Cool Ref address Cool Sub cool OU TH4 temp OU TH6 temp OU TH7 temp IU air temp IU HEX temp IU filter time Select Smooth maintenance with the F1 or F2 button and press the button Select Check with the F1 or F2 button and press the button Select Service from the Main menu and press the button Set each item Select the item to...

Page 101: ...anger temperature 7 Indoor intake air temperature Cool Classification Item Result Inspection Temperature difference Heat Inspection Temperature difference Stable Unstable Stable Unstable 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 outdoor i...

Page 102: ...crews Motor support Clamp 1 Removing the top panel service panel front panel back panel and grille 1 Remove the top panel fixing screws 4 10 one from the right and two from the left side and detach the top panel 2 Remove 2 service panel fixing screws 4 10 and detach the service panel by pulling it downward See Photo 2 3 Remove the front panel fixing screws 4 10 3 from the front 2 from the right an...

Page 103: ...ee 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 Disconnect the indoor outdoor connecting wire from terminal block 6 Disconnect 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 Th...

Page 104: ... parts box See Photo 5 6 Remove the sound proof cover from the compressor Thermistor Discharge TH4 7 Pull out the thermistor Discharge TH4 from the sensor holder See Photo 8 Thermistor Comp surface TH33 7 Pull out the thermistor Comp surface TH33 from the sensor holder See Photo 8 7 Removing the 4 way valve coil 21S4 and LEV coil LEV A LEV B 1 Remove the service panel See Photo 2 2 Remove the top ...

Page 105: ...LEV cover it with a wet cloth to prevent it from heating 120 C or more then braze the pipes so that the inside of pipes are not oxidized 10 Removing the high pressure switch 63H 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 6 Pull out the lead wire of h...

Page 106: ...rubber mount 10 Recover refrigerant 11 Remove 3 compressor fixing nuts by using a spanner or a adjustable wrench 12 Remove the welded pipe of compressor inlet and outlet Note Recover refrigerant without spreading it in the air Receiver leg fixing screw Valve bed 13 Removing the power receiver 1 Remove the service panel See Photo 2 2 Remove the top panel See Photo 1 3 Remove the front panel See Pho...

Page 107: ...the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the indoor outdoor connecting wire from terminal block 4 Disconnect 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 5 Disconnect the pipe side connections of the following parts Thermistor Liquid TH3 Thermistor Discharge TH4 Thermistor 2 phase pipe Am...

Page 108: ... out the thermistor Ambient TH7 from the sensor holder Note When replacing thermistor Ambient TH7 replace it together with thermistor 2 phase pipe TH6 since they are combined together Refer to procedure No 4 above to remove thermistor 2 phase pipe Photo 7 Clamp 6 Removing the thermistor Liquid TH3 and thermistor Discharge TH4 thermistor Comp surface TH33 1 Remove the service panel See Photo 1 2 Di...

Page 109: ...reading it in the air Note 2 The welded part can be removed easily by remov ing the right side panel Note 3 When installing the 4 way valve cover it with a wet cloth to prevent it from heating 120 C or more then braze the pipes so that the inside of pipes are not oxidized 9 Removing the LEV 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove the electrical parts box ...

Page 110: ...ws 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 Note 3 When installing the high pressure switch cover it with a wet cloth to pr...

Page 111: ... refrigerant without spreading it in the air 13 Removing the power receiver 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove 2 front cover panel fixing screws 5 12 and remove the front cover panel See Photo 1 4 Remove 2 back cover panel fixing screws 5 12 and remove the back cover panel 5 Remove the electrical parts box See Photo 4 6 Remove 3 valve bed fixing scre...

Page 112: ...ICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN CCopyright 2017 MITSUBISHI ELECTRIC CORPORATION Published Apr 2017 No OCH653 Made in Japan Specifications are subject to change without notice ...

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Mitsubishi Electric PUZ-ZM60VHA, Service Manual

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