Mitsubishi Electric PUZ-HA30NHA5 Service Manual Download Page 48

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Gray

Orange
Red
Yellow
Black

Parts name

Check points

Disconnect the connector then measure the resistance with a tester.

(Ambient temperature 50 to 86°F [10 to 30

])

Thermistor (TH3)

Thermistor (TH4)

Thermistor (TH6)

<2-phase pipe>
Thermistor (TH7)

<Ambient>
Thermistor (TH8)

<Heat sink>
Thermistor (TH32)

<Suction>
Thermistor (TH33)

<Ref. check>

Normal

160 to 410 k

4.3 to 9.6 k

39 to 105 k

TH4
TH3
TH6
TH7

TH32
TH33

TH8

Abnormal

Open or short

Measure the resistance between the terminals with a tester.

(Ambient temperature 68°F [20

])

Solenoid valve coil

<4-way valve>

(21S4)

Motor for compressor

(MC)

Linear expansion valve

(LEV-A/LEV-B/LEV-C)

Normal

Abnormal

Open or short

Disconnect the connector then measure the resistance with a tester.

(Winding temperature 68°F [20

])

Refer to the next page.

Fan motor(MF1,MF2)

1435

150

0.188

Measure the resistance between the terminals with a tester.

(Winding temperature 68°F [20

])

Normal

Abnormal

Open or short

Normal

Gray - Black

Gray - Red

Gray - Yellow

Gray - Orange

Abnormal

Open or short

10-6. HOW TO CHECK THE PARTS

PUZ-HA30NHA5 PUZ-HA36NHA5

OCH607

Summary of Contents for PUZ-HA30NHA5

Page 1: ...G 17 11 EASY MAINTENANCE FUNCTION 73 12 FUNCTION SETTING 75 13 MONITORING THE OPERATION DATABYTHE REMOTE CONTROLLER 84 14 DISASSEMBLY PROCEDURE 94 R410A Notes This manual describes service data of the outdoor units only RoHS compliant products have G mark on the spec name plate Model Name PUZ HA30NHA5 PUZ HA36NHA5 Service Ref PUZ HA30NHA5 PUZ HA36NHA5 PARTS CATALOG OCB607 SPLIT TYPE HEAT PUMP AIR ...

Page 2: ...tric parts with wet hands Do not pour water into the electric parts Do not touch the refrigerant Do not touch the hot or cold areas in the refrigerating cycle When the repair or the inspection of the circuit needs to be done without turning off the power exercise great caution not to touch the live parts 2 1 ALWAYS OBSERVE FOR SAFETY INDOOR UNIT Model name Service Ref Service manual No PLA A18 30 ...

Page 3: ...io ration of refrigerant oil etc Do not use refrigerant other than R410A If other refrigerant R22 etc is used chlorine in refrige rant can cause deterioration of refrigerant oil etc 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 Use the following tools specifically designed for use with ...

Page 4: ...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 unit completely 2 Do not release refrigerant in the air 3 After completing service charge the cycle with specified amount of refrigerant 4 When performing service install a filter drier simultaneously Be sur...

Page 5: ... Outside diameter mm Dimension A 0 0 4 R410A R22 mm in mm 1 4 3 8 1 2 5 8 3 4 6 35 9 52 12 70 15 88 19 05 43 64 17 0 7 8 22 0 1 3 64 26 0 1 9 64 29 0 17 0 22 0 24 0 27 0 36 0 Nominal dimensions in Flare nut dimensions Outside diameter mm Dimension B in mm R410A R22 mm Gauge manifold Charge hose Gas leak detector Refrigerant recovery equipment Refrigerant cylinder Applied oil Safety charger Charge ...

Page 6: ...lways control the optimal refrigerant level regardless of the length maximum 100 ft 30 m and minimum 16 ft 5 m of piping The additional refrigerant charg ing work during installation often causes problems It is completely eliminated by chargelss system This unique system improves the quality and reliability of the work done It also helps to speed up the installation time PUZ HA30NHA5 PUZ HA36NHA5 ...

Page 7: ...flow m3 min 100 CFM 3530 Sound level Cooling dB 52 Heating dB 53 Protection devices HP switch LP switch Discharge thermo Dimension W mm 950 D mm 330 30 H mm 1350 W in 37 12 32 D in 13 1 3 16 H in 53 5 32 Weight kg lb Refrigerant Charged kg 5 5 R410A lb 12 Control Linear expansion valve Oil Model Ether FV50S Charged L 1 4 oz 45 Refrigerant Pipe size OD mm 9 52 piping Liquid in 3 8 Pipe size OD mm 1...

Page 8: ...dditional charge is required for pipes longer than 100 ft Service Ref Compressor model Winding Resistance U V U W W V at 68 F 20 C PUZ HA30NHA5 PUZ HA36NHA5 ANB33FJEMT 0 188 0 188 0 188 5 1 REFILLING REFRIGERANT CHARGE R410A oz kg 5 2 COMPRESSOR TECHNICAL DATA 5 DATA 5 3 NOISE CRITERION CURVES 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTIN...

Page 9: ...rature DB C Intake air temperature WB C Discharge air temperature DB C side Outdoor Intake air temperature DB C Intake air temperature WB C side Indoor Intake air temperature DB F Intake air temperature WB F Discharge air temperature DB F side Outdoor Intake air temperature DB F Intake air temperature WB F SHF BF PKA A30KA6 COOLING HEATING 12 2 A 2 58 0 87 70 8 44 4 10 5 7 6 374 126 159 112 51 25 ...

Page 10: ...ing hole Knockout Conduit hole 2 27 1 1 16 Knockout 9 2 3 5 8 92 3 5 8 65 2 9 16 45 1 25 32 40 1 9 16 27 1 1 16 55 2 3 16 23 29 32 73 2 7 8 63 2 1 2 Front piping hole Knockout Front trunking hole Knockout Conduit hole 2 27 1 1 16 Knockout 9 2 3 5 8 371 14 19 32 330 13 30 1 3 16 175 6 7 8 600 23 5 8 175 6 7 8 42 1 21 32 66 2 5 8 950 37 13 32 322 12 11 16 1350 53 5 32 635 25 19 3 4 417 16 13 32 370 ...

Page 11: ...LECT 2 SW5 1 to 5 Function Switch SW5 6 2 OFF ON 30N OFF ON 1 2 3 4 5 6 1 2 3 4 5 6 7 8 OFF ON 36N OFF ON 1 2 3 4 5 6 The black square indicates a switch position SYMBOL M NET ADAPTER NAME TB7 CN5 CND CN2M Terminal Block M NET connection Connector Transmission Connector Power Supply Connector M NET communication CN5 WH 3 1 TB7 2 1 CND WH CN2M WH M NET ADAPTER M NET A B S When M NET Adapter is conn...

Page 12: ...AWG13 is used and S3 is separated maximum 262 ft 80 m 2 The 30 ft 10 m wire is attached in the remote controller accessory Maximum 1500 ft 3 The figures are NOT always against the ground S3 terminal has 24 V DC against S2 terminal However between S3 and S1 these terminals are NOT electrically insulated by the transformer or other device 4 Use earth leakage breaker NV 1 Wiring size must comply with...

Page 13: ...mply with the applicable local and national code 2 Use copper supply wires 3 Use wires rated 300 V or more for the power supply cables 4 Install an earth longer than other cables Indoor unit model Indoor unit power supply Minimum circuit ampacity Maximum rating of overcurrent protective device Indoor unit power supply Indoor unit power supply earth Indoor unit Outdoor unit 1 Indoor unit earth Remo...

Page 14: ...function It is acceptable if M NET wire non polar 2 cores is arranged in addition to the wiring for A control 4 Ground only one of any appliances through M NET transmission wire shield wire Communication error may occur due to the influence of electromagnetic noise Ed error will appear on the LED display of outdoor unit 0403 error will appear on the central control remote controller If there are m...

Page 15: ... refrigerant addresses are 00 1 234 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 Switching setting SW11 ones digit SW12 tens 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 16: ...ard 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 pump down SWP switch if the unit is stopped However even if the unit is stopped and the pump down SWP switch is pushed less than 3 minutes after the compressor stops the refrigerant colle...

Page 17: ...s no abnormality concerning of parts such as electrical component controller board remote controller etc 1 Re check the abnormal symptom 2 Conduct troubleshooting and ascertain the cause of the trouble according to 10 5 TROUBLESHOOTING BY INFERIOR PHENOMENA 3 Continue to operate unit for the time being if the cause is not ascertained 4 There is no abnormality concerning of parts such as electrical...

Page 18: ... run F1 F2 F3 F4 Remain 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...

Page 19: ... 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 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 20: ...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 21: ...de stop the unit by SW4 1 change the operation mode and restart the test run by SW4 1 ON OFF TEMP FAN VANE MODE CHECK LOUVER TEST RUN AUTO STOP AUTO START h min RESET SET CLOCK TEST RUN COOL 7 5 6 2 3 4 Test run for IR wireless remote controller Measure an impedance between the power supply terminal block on the outdoor unit and ground with a 500 V Megger and check that it is equal to or greater t...

Page 22: ...the button 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 hist...

Page 23: ... will appear 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 transm...

Page 24: ...ncelled 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 4 Malfunction diagnosis method by IR wireless remote controller In case of trouble during...

Page 25: ...p blinks Check code Number of times IR wireless remote controller Wired remote controller Errors detected by unit other than indoor unit outdoor unit etc Symptom Remark 1 Indoor outdoor unit communication error 2 Transmitting error Outdoor unit 3 Open short of outdoor unit thermistors 4 Compressor overcurrent interruption When compressor locked 5 Abnormal high discharging temperature 49C worked in...

Page 26: ...r circuit board Disconnection of connector TABT or TABS Refer to 10 9 TEST POINT DIAGRAM 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 Refer to 10 9 TEST POINT DIAGRAM 4 Check connection of reactor DCL Check connection of L1 and L2 on the active filter module ACTM Refer to 10 9 TEST POINT D...

Page 27: ...e number of indoor units that are connected to one outdoor 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 ...

Page 28: ...for 5 minutes Abnormal if condenser evaporator temperature thermistor TH5 exceeds 104 F 40 during defrosting and discharge temperature thermistor TH4 exceeds 230 F 110 2 Abnormal if discharge superheat Cooling TH4 TH5 Heating TH4 TH6 exceeds 126 F 70 1 Overheated compressor opera tion caused by shortage of refrigerant 2 Defective operation of stop valve 3 Defective thermistor 4 Defective outdoor c...

Page 29: ...r circuit board Check breaking of the lead wire for thermistor TH3 TH32 TH33 TH6 TH7 TH8 Refer to 10 9 TEST POINT DIAGRAM 2 Check resistance value of thermistor TH3 TH32 TH33 TH6 TH7 TH8 or check temperature by microprocessor Thermistor TH3 TH6 TH7 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 3 Replace outdoor con...

Page 30: ...circuit board 4 Defective 52C drive circuit in outdoor power circuit board 5 Disconnection or loose connection of CN2 on the outdoor power circuit board controller circuit board 6 Power circuit failure on DC supply for 18 V DC output on outdoor controller circuit board 04 Input current sensor error L1 phase open error Decrease in input current through outdoor unit to 0 1 A only if operation freque...

Page 31: ...63L is worked under 4 PSIG 0 03 MPa during compressor operation 63L Low pressure switch 1 Stop valve of outdoor unit is closed during operation 2 Disconnection or loose con nection of connector 63L on outdoor controller board 3 Disconnection or loose connec tion of 63L 4 Defective outdoor controller board 5 Leakage or shortage of refriger ant 6 Malfunction of linear expansion valve 1 Check stop va...

Page 32: ...ller 4 Defective transmitting receiving circuit of remote controller 5 Defective transmitting receiv ing circuit of indoor controller board of refrigerant address 0 6 Noise has entered into the transmission wire of remote controller E1 or E2 Remote controller control board 1 Abnormal if data cannot be read nor mally from the nonvolatile memory of the remote controller control board Check code E1 2...

Page 33: ...out door units 2 4 Turn the power off and on again to check Replace indoor controller board or outdoor controller circuit board if abnor mality is displayed again E6 6840 Indoor outdoor unit communication error Signal receiving error 1 Abnormal if indoor controller board could not receive any signal normally for 6 minutes after turning the power on 2 Abnormal if indoor controller board could not r...

Page 34: ...oor controller circuit board after connecting A Control Service Tool PAC SK52ST 23Check converse connection of extension pipe or converse wiring of indoor outdoor unit connecting wire 1 2 3 4 5 6 ON OFF 1 2 3 4 5 6 ON OFF 1 2 3 4 5 6 ON OFF 1 2 3 4 5 6 ON OFF A Control Service Tool SW2 setting Temperature display of indoor liquid pipe Indoor 1 Temperature display of indoor liquid pipe Indoor 2 Tem...

Page 35: ...sly because of noise etc Note The address and attribute displayed at remote controller indicate the con troller 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 quantity has increased and transmission is not possible because there was wiring mistake of termi...

Page 36: ...h of abnormality gener ated address 3 Check disconnection or looseness of abnor mality generated or abnormality detected transmission wire terminal block and con nector 4 Check if tolerance range of transmission wire is not exceeded 5 Check if type of transmission wire is correct or not If the cause of trouble is in 1 5 repair the defective then turn off the power supply of out door unit and indoo...

Page 37: ...e refriger ant system with LOSSNAY is turn off or within 2 minutes of restart abnormality is detected 3 Contact failure of transmis sion wire of indoor unit of LOSSNAY 4 Disconnection of transmission connector CN2M of indoor unit 5 Defective transmitting receiv ing 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 a...

Page 38: ...d 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 Indoor outdoor connecting wire is nor mal 4 Check LED display on outdoor controller circuit board Refer to 10 10 FUNCTION OF SWITCHES CONNECTORS AND JUMPERS Check protection device connector 63L and 63H for contact failure Refer to 10 9 TEST PO...

Page 39: ...y the remote controller 12 Normal operation For protection of compressor 12 Normal operation 4 Even controlling by the IR wireless remote controller no beep is heard and the unit does not start operat ing Operation display is indicated on the IR wireless remote controller 1 The pair number settings of the IR wireless remote controller and indoor controller board are mismatched 1 Check the pair num...

Page 40: ... 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 41: ... 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 outdoor connecting wire is polari...

Page 42: ...ce 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 power circuit board Defective indo...

Page 43: ... 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 short circuits Check if the remote controller wire is short circuited Defective indoor controller board Replace the indoor controller board Diagnosis flow Cause Inspection method...

Page 44: ...ce to 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 min...

Page 45: ...outdoor 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 t...

Page 46: ...he 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 Som...

Page 47: ... down HEAT Water drips down from the heat exchanger Note Use 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 the IR wireless remote controller gets dim or does not come on The indoor uni...

Page 48: ... short Measure the resistance between the terminals with a tester Ambient temperature 68 F 20 Solenoid valve coil 4 way valve 21S4 Motor for compressor MC Linear expansion valve LEV A LEV B LEV C Normal Abnormal Open or short Disconnect the connector then measure the resistance with a tester Winding temperature 68 F 20 Refer to the next page Fan motor MF1 MF2 1435 i 150 0 188 Measure the resistanc...

Page 49: ...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 Wiring recovery Replace the outdoor controller board Replace the fan motor Replace outdoor contro...

Page 50: ...0 20 10 0 10 20 30 40 50 4 14 32 50 68 86 104122 F Temperature Resistance k 500 400 300 200 100 0 25 50 75 100 120 77 122 167 212 248 F Temperature Resistance k 32 F 0 180 k 77 F 25 50 k 122 F 50 17 k 158 F 70 8 k 194 F 90 4 k Medium temperature thermistor Thermistor Heat sink TH8 200 150 100 50 0 25 50 75 100 110 125 77 122 167 212 230 257 F Temperature Resistance k Thermistor R0 15 k 3 B constan...

Page 51: ... 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 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 3 4 5 6 Connector LEV A LEV B LEV C 12 V DC Outdoor controller board D...

Page 52: ...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 to main body coil may be detached from the main body and that can cause defective operation of lin ear expansion valve To prevent piping stress be sure to attach the coil holding the main body of linear expansion valve firmly Otherwise pipe may br...

Page 53: ...mergency 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 coo...

Page 54: ...F 22 41 F 5 41 F 5 45 F 7 5 54 F 30 9 F 5 1 1 1 1 2 Remarks 1 If the thermistor temperature data is normal not open short that data is loaded into the control as valid data If the unit enters emergency operation because TH values have become mismatched setting the thermistors to open short corrects the settings 2 If one thermistor is set to open short the values for each will be different Example ...

Page 55: ...ase pipe CNDC 280 V DC 1 3 Connect to the outdoor power 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 Voltage between pins of C5A C5B 0 V DC when stopped 1 6 5 V DC when operated SW7 Demand control setting CN51 External signal output Compressor operat ing signal Abnormal signal LEV A B C Linear expansion valve SWP P...

Page 56: ...ircuit board CN5 LO NO Voltage of 208 230 V AC is output Connect to the outdoor power circuit board TABS TABT Outdoor noise filter circuit board PUZ HA30NHA5 PUZ HA36NHA5 CN52C 52C driving signal Connect to the outdoor controller circuit board CN52C E2 Connect to the ground LI NI Voltage of 208 230 V AC is input Connect to the terminal block TB1 RS1 OCH607 ...

Page 57: ... to the outdoor controller circuit board CNDC TABS TABT Connect to the outdoor noise filter circuit board Voltage among phases 208 230 V AC Brief check of POWER 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 diode bridge TABP1 TABS TABN1...

Page 58: ...trouble and Io open less than 1 1 The unit does not operate cannot be switched ON and L2 short 100 k to 1 M 1 The breaker operates open 1 1 The unit does not operate cannot be switched ON 2U9 Abnormal stop 2 P and L2 short 100 k to 1 M 1 The breaker operates open 1 1 The unit does not operate cannot be switched ON 2U9 Abnormal stop 2 P and Io short 100 k to 1 M 1 The breaker operates open 1 1 The ...

Page 59: ... Push switch SW1 1 2 No Function Effective timing Action by the switch operation Manual defrost 1 Start Normal When compressor is working in heating operation 1 Abnormal history clear Refrigerant address setting When power supply ON Clear Normal off or operating SWP 6 5 4 3 Under suspension Pump down Start Normal SW4 SW8 1 2 1 2 3 Test run Operating OFF Under suspension Test run mode setting Heati...

Page 60: ... Setting of demand control 3 1 2 SW7 1 SW7 2 OFF 0 Operation stop 75 50 OFF ON OFF OFF ON Power consumption Demand switch ON Model select Following SW5 6 reference CN31 Types Connector Function Effective timing Connector Start Short Open Action by open short operation Emergency operation When power supply ON Normal 2 Function of connector 2 Power failure automatic recovery can be set by either rem...

Page 61: ...lease Low level sound priority mode and normal operation b On demand control Local wiring Demand control is available by external input In this mode power consumption is decreased within the range of usual 0 100 How to wire Basically the wiring is same with a Connect 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 th...

Page 62: ... 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 Communication between outdoor controller board and M NET P C board Communication error of M NET system 1 Check code displayed on remote controller 2 Re...

Page 63: ...connector CN3 on outdoor power board are not disconnected 2 Measure resistance value of outdoor thermistors Abnormality of heatsink temperature 1 Check if indoor outdoor units have a short cycle on their air ducts 2 Measure resistance value of outdoor thermistor TH8 1 Check the outdoor fan motor 2 Check if connector TH3 on outdoor controller board is disconnected Abnormality of voltage 1 Check loo...

Page 64: ... 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 F3 F5 F9 E8 E9 EA Eb EC E0 E7 63L connector red is open 63H connector yellow is open 2 connectors 63H 63L are open Indoor outdoor communication error Signal receiving error Outdoor unit Indoor outdoor communication error Transmitting ...

Page 65: ...t is 100 hours or more hundreds 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 50 LEV A opening pulse 0 480 0 50 Note Omit the figures after the decimal fractions 0 480 When it is 100 pulse or more hundreds digit tens digit and ones digit are displayed by turns E...

Page 66: ...ory 2 Alternate display of error unit number and code 37 327 3 164 When the temperature is 100 F or more the hundreds digit tens digit and ones digit are displayed by turns Example When 130 F 0 5 s 0 5 s 2 s F A Code display Code display 0 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 0 999 Test run elapse...

Page 67: ...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 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 38 190 38 190 39 88 When the temperature is 0 F or less and temperature are displayed by turns F 38 190 39 88 When th...

Page 68: ...ds digit tens digit and ones digit are displayed by turns V 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 SW2 setting 1 ON 2 3 4 5 6 Display detail Explanation for display Unit F 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Indoor setting temperature 62 86 Outdoor pipe temperature 2 phase TH6 38 190 Outdoor heat sink temperature TH8 40 327 62 86 17 30 F F F 38 190 39 88 When the temp...

Page 69: ...y 3 of outdoor unit Postponement code display Blinking During postponement Lighting Cancellation of 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 TH32 6 Outdoor pipe temperature 2 phase TH6 7 Outdoor ambient temper...

Page 70: ...re is 0 F or less and temperature are displayed by turns Example When 15 F 0 5 s 0 5 s 2 s 15 Outdoor pipe temperature 2 phase TH6 on error occurring 38 190 38 190 39 88 C When the temperature is 0 F or less and temperature are displayed by turns Example When 15 F 0 5 s 0 5 s 2 s 15 Outdoor ambient temperature TH7 on error occurring 38 190 38 190 39 88 C When the temperature is 0 F or less and tem...

Page 71: ...rring SHd 0 327 Cooling TH4 TH6 Heating TH4 TH5 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 F Minute 1 ON 2 3 4 5 6 U9 Error details To be shown while error call is deferred Code display Pulse LEV B opening pulse 0 480 0 480 When it is 100 pulse or more hundreds digit tens digit and ones digit are displayed by turns 1 ON 2 3 4 5 6 0 480 When it is 100 pulse or more hundreds digit tens digit and ones digit are d...

Page 72: ...8 2 The tens digit The ones digit In this digit the total number of activated control is displayed Preventive control for excessive temperature rise of discharge temperature Preventive control for excessive temperature rise of condensing temperature Frosting preventing control Preventive control for excessive temperature rise of heat sink Example The following controls are activated Primary curren...

Page 73: ...P run time 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...

Page 74: ...e 7 Indoor intake air temperature Cool Classification Item Result Inspection Temperature difference Heat Inspection Temperature difference Stable Unstable F F Stable Unstable F F Notes Fixed Hz operation may not be possible under the following tempera ture ranges A In cool mode outdoor intake air temperature is 104 For higher or indoor intake air temperature is 73 F or lower B In heat mode outdoor...

Page 75: ...emote controller RF thermostat Function Settings Setting No Initial setting when sent from the factory Remarks 12 1 UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER Each function can be be set as necessary using the remote controller The setting of function for each unit can only be done by the remote controller Select function available from the table 1 1 Functions available when setting the unit n...

Page 76: ...ir flow Available Not available PLA BA Initial setting Factory setting Not available 4 Way cassette PLA BA PKA HA PKA HAL PKA KA PKA KAL Ceiling Suspended PCA KA Mode No Wired remote controller RF thermostat Wall mounted 2 Functions available when setting the unit number to 01 03 or AL 07 in the case of the IR wireless remote controller When setting functions for an indoor unit in an independent s...

Page 77: ...nd select 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 si...

Page 78: ...ange 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 Grp 5 When...

Page 79: ...set 50 Direct the IR 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 Press 01 to specify the indoor unit whose unit number is 01 Direct the IR wireless remote controller toward the receiver of the indoor unit and press the min button Notes 1 If a unit number that cannot be recognized by the un...

Page 80: ...g any button 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 t...

Page 81: ... 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 panel Men...

Page 82: ...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 to switch between ...

Page 83: ... blinks 2 Press the AUTO START button F blinks 3 Press the button C blinks 4 Press the set button with something sharp at the end MODEL SELECT is lighted for 3 seconds then turned off ON OFF TEMP FAN VANE TEST RUN AUTO STOP AUTO START h min LOUVER MODE CHECK RESET SET CLOCK MODEL SELECT NOT AVAILABLE SWING CHECK FAN TEST RUN F C AMPM STOP START AMPM COOL DRY AUTO FAN HEAT 1 4 1 4 2 2 3 3 OCH607 ...

Page 84: ...t Check 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 a...

Page 85: ...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 3 Indoor unit Liquid pipe tempera...

Page 86: ...postponement history 2 previous Outdoor unit Error postponement history 3 last but one Refer to 13 2 1 DetailContentsinRequestCode Refer to 13 2 1 DetailContentsinRequestCode Refer to 13 2 1 DetailContentsinRequestCode Refer to 13 2 1 DetailContentsinRequestCode 0000 Not connected Examples Ver 5 01 Auxiliary information displayed after version information Examples Ver 5 01 A000 Displays postponeme...

Page 87: ...or 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 pipe 2 temperature at time of error Outdoor unit 2 phase pipe temperature TH6 at time of error Outdoor unit Outside air temperature TH7 at time of error Outdoor unit Heat sink temperature...

Page 88: ... 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 Microcomputer version information Indoor unit Microcomputer version information sub No Stabl...

Page 89: ...te Request code 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 4 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 protecti...

Page 90: ...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 91: ...isplay Request code 70 Data display Capacity 10 18 9 12 11 24 14 30 20 36 25 42 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 three phase cooling only 0 Single phase Heat pump 1 Cooling only 2 Three phase Heat pump ...

Page 92: ... 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 Data display SW5 1 2 3 4 0 0 0 0 00 00 1 0 0 0 00 01 0 1 0 0 00 02 1 1 0 0 00 03 0 0 1 0 00 04 1 0 1 0 00 05 0 1 1 0 00 06 1 1 1 0 00 07 0 0 0 1 00 08 1 0 0 1 00 09 0 1 0 1 00 0A 1 1 0 1 00 0b 0 0 1 1 0...

Page 93: ...ity setting information Request code 163 Data display 0 0 See the table on the right Display Capacity setting state Display Capacity setting state 00 10 42 01 11 02 12 03 13 04 14 05 15 06 12 16 07 17 08 18 09 18 19 0A 1A 0b 24 1b 0C 1C 0d 30 1d 0E 1E 0F 36 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...

Page 94: ...ove the service panel See Figure 1 2 Remove the top panel See Figure 1 3 Remove the fan grille fixing screws 5 for front 5 x 12 to remove the fan grille See Figure 1 For the each fan motor on top and under 4 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 5 Disconnect the connectors CNF1 WT and CNF2 WT on the controll...

Page 95: ...32 Thermistor Ref check TH33 High pressure switch 63H Low pressure switch 63L 4 way valve 21S4 LEV LEV A LEV B LEV C 6 Loosen 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 9 Remove the electrical parts box fixing screw 1 for front 4 x...

Page 96: ... the connector TH4 WT on the controller circuit board in the electrical parts box See Photo 3 3 Loosen the fastener cable strap and band for the lead wire on the controller circuit board in the electrical parts box 4 Loosen clamps for the lead wire on the separator 5 Pull out the thermistor Discharge TH4 from the thermistor holder 7 Removing the thermistor Liquid TH3 and thermistor Suction TH32 1 ...

Page 97: ...ure swich 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 3 Remove the electrical parts box See Photo 3 4 Remove the cover panel front See Figure 1 5 Remove the cover panel rear See Photo 3 6 Remove the valve bed See Photo 3 7 Remove the side panel R 8 Recover refrigerant Removing the 4 way valve 9 Remove the 4 way valve coil See Figure 2 10 Remove the welded part of 4 ...

Page 98: ... Photo 10 7 Remove the side panel R See Photo 3 8 Remove the front panel fixing screws 4 for front 5x12 and 2 for front 4x10 then slide the front panel upward to remove it The front panel is fixed with 4 hooks 3 on the left side fixing to the side panel L and the other on the right side fixing to the separator 9 Remove the separator fixing screws 3 for front 4x10 then slide the separator upward to...

Page 99: ...99 OCH607 ...

Page 100: ... 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN CCopyright 2015 MITSUBISHI ELECTRIC CORPORATION Distributed in Oct 2015 No OCH607 Made in Japan New publication effective Oct 2015 Specifications are subject to change without notice ...

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Mitsubishi Electric PUZ-HA30NHA5, Service Manual

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