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OCH738

(2) Cautions for refrigerant piping work

New refrigerant R32 is adopted for replacement inverter series. Although the refrigerant piping work for R32 is same as for

R22, exclusive tools are necessary so as not to mix with different kind of refrigerant. Furthermore as the working pressure

of R32 is 1.6 times higher than that of R22, their sizes of flared sections and flare nuts are different.

Thickness of pipes

Because the working pressure of R32 is higher compared to R22, be sure to use refrigerant piping with thickness shown

below. (Never use pipes of 0.7 mm or below.)

Dimensions of flare cutting and flare nut

The component molecules in HFC refrigerant are smaller compared to conventional refrigerants. In addition to that, R32

is a refrigerant, which has higher risk of leakage because its working pressure is higher than that of other refrigerants.

Therefore, to enhance airtightness and strength, flare cutting dimension of copper pipe for R32 has been specified

separately from the dimensions for other refrigerants as shown below. The dimension B of flare nut for R32 also has

partly been changed to increase strength as shown below. Set copper pipe correctly referring to copper pipe flaring

dimensions for R32 below. For 1/2 and 5/8 inch pipes, the dimension B changes.

Use torque wrench corresponding to each dimension.

Tools for R32 (The following table shows whether conventional tools can be used or not.)

1/4

3/8

1/2

5/8

3/4

6.35

9.52

12.70

15.88

19.05

0.8

1.0

—

0.8

1.0

Nominal

dimensions (inch)

Diagram below: Piping diameter and thickness

Outside

diameter (mm)

Thickness (mm)

R32/R410a

R22

1/4

3/8

1/2

5/8

3/4

6.35

9.52

12.70

15.88

19.05

9.1

13.2

16.6

19.7

—

9.0

13.0

16.2

19.4

23.3

Nominal

dimensions (in)

Flare cutting dimensions

Outside

diameter

Dimension A ( )

-0.4

(mm)

(mm) R32/R410a

R22

1/4

3/8

1/2

5/8

3/4

6.35

9.52

12.70

15.88

19.05

17.0

22.0

26.0

29.0

—

17.0

22.0

24.0

27.0

36.0

Nominal

dimensions (in)

Flare nut dimensions

Outside

diameter

Dimension B (mm)

(mm) R32/R410a

R22

Dimension A

Dimension B

Gauge manifold

Charge hose

Gas leak detector

Refrigerant recovery equipment

Refrigerant cylinder

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 gauge and

vacuum valve

Charging cylinder

Air purge, refrigerant charge

and operation check

Gas leak check

Refrigerant recovery

Refrigerant charge

Prevent compressor malfunction

when charging refrigerant by

spraying liquid refrigerant

Prevent gas from blowing out

when detaching charge hose

Vacuum drying and air

purge

Flaring work of piping

Bend the pipes

Cut the pipes

Weld the pipes

Refrigerant charge

Check the degree of vacuum. (Vacuum

valve prevents back flow of oil and refri-

gerant to thermistor vacuum gauge)

Refrigerant charge

Tool exclusive for R32

Tool for HFC refrigerant

Tool exclusive for R32

Tools for other refrigerants can

be used if equipped with adap-

ter for reverse flow check

Tools for other refrigerants

can be used by adjusting

flaring dimension

Tools for other refrigerants can be used

Tools for other refrigerants

can be used

Tool exclusive for R32

Tools and materials

Use

R32 tools

(Usable if equipped

with adapter for rever-

se flow)

(Usable by adjusting

flaring dimension)

(Usable if equipped

with adapter for rever-

se flow)

(Usable by adjusting

flaring dimension)

: Prepare a new tool. (Use the new tool as the tool exclusive for R32.)

: Tools for other refrigerants can be used under certain conditions.

: Tools for other refrigerants can be used.

Can R22 tools be used? Can R407C tools be used?

(Usable if equipped

with adapter for rever-

se flow)

(Usable by adjusting

flaring dimension)

Can R410a tools be used?

Содержание Mr.SLIM PUZ-ZM200YKA

Страница 1: ...AGRAM 18 8 WIRING SPECIFICATIONS 19 9 REFRIGERANT SYSTEM DIAGRAM 24 10 TROUBLESHOOTING 26 11 FUNCTION SETTING 80 12 MONITORING THE OPERATION DATABY THE REMOTE CONTROLLER 91 13 EASY MAINTENANCE FUNCTION 100 14 DISASSEMBLY PROCEDURE 103 No OCH738 March 2020 Outdoor unit Model Name PUZ ZM200YKA PUZ ZM250YKA Service Ref PUZ ZM200YKA UK PUZ ZM250YKA UK Note This manual describes service data of the out...

Страница 2: ...breaker Discharge the condenser before the work involving the electric parts Precautions during the repair service Do not perform the work involving the electric 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 of...

Страница 3: ...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 Do not use refrigerant other than R32 If other refrigerant R22 etc is used chlorine in refrige rant can cause deterioration of refrigerant oil etc Handle tools with care If dirt dust or moisture enters into refrigerant cycle that can caus...

Страница 4: ... refrigerant 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 basement 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 thos...

Страница 5: ...he Refrigeration 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 ...

Страница 6: ... conventional procedures shall be used However for flammable refrigerants it is important that best practice is followed since flammability is a consideration 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 cy...

Страница 7: ...nto cylinders ensure that only appropriate refrigerant 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 as...

Страница 8: ... check Refer to the flowchart below to determine if the existing pipes can be used and if it is necessary to use a filter drier If the diameter of the existing pipes is different from the specified diameter refer to technical data materials to confirm if the pipes can be used Measure the existing pipe thickness and check for damage The existing pipe thickness meets specifica tions and the pipes ar...

Страница 9: ... 05 17 0 22 0 26 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 R32 R410a R22 Dimension A Dimension B Gauge manifold Charge hose Gas leak detector Refrigerant recovery equipment Refrigerant cylinder Safety charger Charge valve Vacuum pump Flare tool Bender Pipe cutter Welder and nitrogen gas cylinder Refrigerant charging scale Vacuum g...

Страница 10: ...n area where there is insufficient ventilation refrain from using of flames until the work environment can be improved by ensuring appropriate ventilation Install outdoor units in a place where at least one of the four sides is open and in a sufficiently large space without depressions 2 5 Minimum installation area If you unavoidably install a unit in a space where all four sides are blocked or th...

Страница 11: ...nt 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 For floor standing PSA M 0 m There are restrictions in installation height for each model so read the installation manual for the particular unit 75 ...

Страница 12: ...ping 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 ZM200YKA UK PUZ ZM250YKA UK Case 2 for floor standing PSA M M kg Amin m 1 84 1 84 No requirements 2 0 6 6 2 5 7 3 0 9 3 5 10 4 0 11 4 5 1...

Страница 13: ...hanger Plate fin coil Fan Fan drive o No Propeller fan o 2 Fan motor output kW 0 200 0 200 Airflow m3 min CFM 140 4 940 Defrost method Reverse cycle Sound pressure level Cooling dB 59 Heating dB 62 Dimensions W mm inch 1 050 41 5 16 D mm inch 330 40 13 1 9 16 H mm inch 1 338 52 11 16 Weight kg lb 137 302 138 304 Refrigerant R32 Charge kg lb 6 3 13 9 6 8 15 0 Oil Model L 2 30 FW68S REFRIGERANT PIPI...

Страница 14: ...ditional charge using the amount shown in Additional charge amount for 70 m kg m o 0 06 kg m m o 0 04 kg m m o 0 03 kg m m o 0 01 kg m ZM200 1 2 kg ZM250 1 8 kg 5 1 REFILLING REFRIGERANT CHARGE R32 kg PUZ ZM200 250 AVB52FBAMT Service Ref Compressor model Winding temperature at 20 C U V U W W V Winding Resistance 0 305 0 305 0 305 PUZ ZM200YKA UK PUZ ZM250YKA UK Additional charge is required for pi...

Страница 15: ... 0 dB 0 0002 µbar BAND CENTER FREQUENCIES Hz NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 PUZ ZM200YKA UK COOLING MODE HEATING 59 SPL dB 62 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 PUZ ZM250YKA UK COOLING MODE HEA...

Страница 16: ...ature Discharge air temperature Intake air temperature V A V A Mpa Mpa C C C m C C C C C Indoor unit D B W B D B D B W B W kW PUZ ZM250YKA UK PUZ ZM200YKA UK PLA ZM125EA UK 2 PLA ZM100EA UK 2 PLA ZM125EA UK PLA ZM100EA UK 3 50 3 50 1 50 1 50 230 230 400 400 Heating Cooling Heating Cooling 12 3 2 86 0 67 88 47 0 7 5 20 15 44 9 7 6 10 6 2 96 0 9 85 48 9 7 5 27 19 11 7 35 24 0 73 0 06 8 67 2 6 0 84 7...

Страница 17: ...17 OCH738 1 2 3 2 3 3 1 PUZ ZM200YKA UK PUZ ZM250YKA UK Unit mm 6 OUTLINES AND DIMENSIONS ...

Страница 18: ...18 OCH738 7 WIRING DIAGRAM PUZ ZM200YKA UK PUZ ZM250YKA UK ...

Страница 19: ...le type Design 60245 IEC 57 S1 S2 S3 S1 S2 S3 A Control Outdoor Unit 3 poles isolator Power supply Isolator A Control Indoor Unit Never splice the power cable or the indoor outdoor connection cable otherwise it may result in a smoke a fire or communication failure Outdoor unit model ZM200 250 Outdoor unit power supply 3N 3 ph 4 wires 50 Hz 400 V Outdoor unit input capacity main switch Breaker 1 32...

Страница 20: ...upply terminal kit is required A B C D E F G H J Outdoor unit power supply Earth leakage breaker Wiring circuit breaker or isolating switch Outdoor unit Indoor unit outdoor unit connecting cables Remote controller Indoor unit Option Indoor unit power supply K Indoor unit earth If the indoor and outdoor units have separate power supplies refer to the table below If the optional indoor power supply ...

Страница 21: ...mber 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 since 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 IEC ...

Страница 22: ...e are 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 e...

Страница 23: ...ches are 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 10s digit SW12 1s 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...

Страница 24: ...p surface Thermistor TH8 Control Protection Compressor Strainer 50 Strainer 100 Strainer 100 Strainer 100 4 way valve Muffler Charge plug Low pressure Charge plug High pressure Ball valve Refrigerant GAS pipe connection ø25 4 ø1 inch Refrigerant flow in cooling Refrigerant flow in heating Heat exchanger Thermistor TH6 2 phase pipe Thermistor TH7 Ambient Thermistor TH3 Liquid Distributor Thermal pr...

Страница 25: ...3 to 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 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 th...

Страница 26: ...of outdoor unit Actions to be taken for service which depends on whether or not the trouble is reoccurring in the field are summarized in the table below Check the contents below before investigating details Unit conditions at service Check code Actions to be taken for service summary The trouble is reoccurring Displayed Judge the problem and take a corrective action according to 10 4 SELF DIAGNOS...

Страница 27: ... 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 Test run operation Auto vane check Press the button and open the Vane setting screen Function buttons F1 F2 F3 F4 MENU RETURN...

Страница 28: ...ess unit model name and serial number will appear The model name and serial number will appear only if the informa tion have been registered Press the F1 or F2 button to go to the next page Contact information dealer s phone number will appear if the information has been registered 2 Press the F4 button or the button to reset the error that is occurring Errors cannot be reset while the ON OFF oper...

Страница 29: ...or 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 indicates the latest error record Error history 4 To delete...

Страница 30: ... 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 Press the ON OFF button to stop the test run Note Point the remote controller towards the indoor unit receiver while following steps 2 to 7 It is not possible to run in FAN DRY or AUTO mode MODE MODE COOL HEAT TEST RUN FAN ...

Страница 31: ...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 button OK to delete the error history If deletion fails Request rejected will appear Unit not exist will appear if no indoor units that are correspond to the entered address ...

Страница 32: ...ller 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 the other remote controllers NG ALL0 ALL1 Send receive circuit fault The remote controller needs replac ing ERC The number of data errors is the discrepancy between the number of bits in the data transmitted from the remote co...

Страница 33: ...s B indoor unit and the number of blinks of the OPERATION INDICATOR lamp check is completed f 10 3 4 Self diagnosis for wireless remote controller PAR SL100A E Procedure 1 Press the CHECK button twice CHECK lights and refrigerant address 00 blinks Check that the remote controller s display has stopped before continuing 2 Press the TEMP buttons Select the refrigerant address of the indoor unit for ...

Страница 34: ... 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 P5 Drain pump error PA ...

Страница 35: ...y 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 7 WIRING DIAGRAM 5 a Check connection of outdoor noise filter circuit board b Replace...

Страница 36: ...r 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 the case of group control system 8 Check transmission path and remove the cause Note The descriptions above...

Страница 37: ...ature thermistor TH5 exceeds 40 C during defrosting and comp surface temperature thermistor TH4 TH33 exceeds 110 C 2 Abnormal if discharge superheat Cooling TH4 TH33 TH6 Heating TH4 TH33 TH5 increases All the conditions in A or B are detected simultaneously for 10 minutes continuous ly after 6 minutes past from compressor Startup including the thermostat indication or recovery from defrosting Cond...

Страница 38: ...S CONNECTORS AND JUMPERS 6 Replace outdoor power circuit board 7 Replace outdoor controller circuit board U6 4250 Power module Check abnormality by driving power module in case overcurrent is detected UF or UP error condition 1 Outdoor stop valve is closed 2 Decrease of power supply voltage 3 Looseness disconnection or converse of compressor wiring connection 4 Defective compressor 5 Defective out...

Страница 39: ...ACCT AC current trans 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 circ...

Страница 40: ... pressure Abnormal if the following conditions are detected for continuously 3 minutes after compressor starts heating operating for 10 minutes TH7 TH3 4 C and TH5 Indoor room temperature 2 C Thermistor TH3 Outdoor liquid pipe temperature TH5 Indoor cond eva temperature TH7 Ambient temperature 1 Stop valve of outdoor unit is closed during operation 2 Leakage or shortage of refrigerant 3 Malfunctio...

Страница 41: ... displayed replace remote controller c When E3 or ERC is displayed noise may be causing abnormality 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 c...

Страница 42: ...d into power supply 3 Noise has entered into outdoor control wire 1 3 Turn the power off and on again to check If abnormality occurs again replace indoor controller board E8 6840 Indoor outdoor unit communication error Signal receiving error Outdoor unit Abnormal if outdoor controller circuit board could not receive anything normally for 3 minutes 1 Contact failure of indoor outdoor unit connectin...

Страница 43: ...tarts when 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 pip...

Страница 44: ...e of collision 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 Transmissi...

Страница 45: ...unit and FRESH MASTER or 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 t...

Страница 46: ...ned off 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 t...

Страница 47: ...ote 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 controller...

Страница 48: ...ses Check 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 ref...

Страница 49: ...nosis 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 the case of communication errors the display of remote controll...

Страница 50: ...board are blown Check the wiring of the outdoor unit Check if the wiring is bad Check if the fuses are blown The fuses on the outdoor controller circuit board will be blown when the indoor outdoor 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 I...

Страница 51: ...tdoor 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 the 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 ou...

Страница 52: ...al block 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 control...

Страница 53: ... menu See the operation manual that came with the product for how to clean the filters 3 Heat 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 later While Heat Sta...

Страница 54: ...ntrolling 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 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 horizontal blow in these cases ...

Страница 55: ...bove situations are released 3 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 Unsupported function will be displayed on the remote controller when AIR DI...

Страница 56: ...ps 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 ...

Страница 57: ...e 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 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...

Страница 58: ... 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 defective fan motor Replace the outdoor control...

Страница 59: ...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 Discharge TH4 Thermistor Comp Surface TH33 0 10 20 30 40 50 20 10 0 10 20 30 40 50 Tempe...

Страница 60: ...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 Gray Orange Red Yellow Black 2 3 4 5 Connector LEV A 12 V DC Outdoor controller board Dr...

Страница 61: ...erwise pipes can bend due to stress 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 att...

Страница 62: ...ing 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 emergenc...

Страница 63: ...re set temperature Tj 5 5 Discharge superheat SHd 30 C 30 C 2 Sub cool SC 5 C 5 C 2 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 op...

Страница 64: ...evel sound priority mode 1 to 3 Input of external contact point SW7 Demand control setting SW4 Test operation SW6 Model select SW5 Function switch TH3 Thermistor Liquid TH4 Thermistor Discharge 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 B...

Страница 65: ...Connect to the elec trical parts box CNAC1 CNAC2 230 V AC Connect to the outdoor controller circuit 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 E2 Connect to the e...

Страница 66: ...ction 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 5 1 2 6 7 TB U TB V TB W Connect to the compressor MC Voltage a...

Страница 67: ...rom OFF to ON 2 Manual defrost 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 have been satisfied Manual defrost can be done if above conditions have...

Страница 68: ...tion switch Valid Normal Always 3 4 No function SW6 1 No function 2 3 4 Model select 1 2 3 6 4 7 4 5 8 OFF ON 200Y 1 2 3 6 4 7 4 5 8 OFF ON 250Y MODEL SW6 The black square indicates a switch position 5 6 7 8 2 Power failure automatic recovery can be set by either remote controller or this DIP SW If one of them is set to ON Auto recovery activates Please set Auto recovery basically by remote contro...

Страница 69: ...noise mode 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 followi...

Страница 70: ...oor outdoor controller board 4 Re check error by turning off power and on again P 42 Indoor outdoor unit communication error transmitting error is detected by indoor unit E7 P 42 Indoor outdoor unit communication error signal receiving error is detected by outdoor unit P 42 E8 Indoor outdoor unit communication error transmitting error is detected by outdoor unit P 42 E9 3 blinking Remote controlle...

Страница 71: ...bnormality of heat sink temperature U5 1 Check if indoor outdoor units have a short cycle on their air ducts 2 Measure resistance value of outdoor thermistor TH8 P 38 7 blinking Abnormality of voltage U9 1 Check looseness disconnection and converse connection of compressor wiring 2 Measure resistance value among terminals on compressor using a tester 3 Check if power supply voltage decreases 4 Che...

Страница 72: ...played 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 TRS connector is open Indoor outdoor communication error Signal receiving error Outdoor unit Indoor outdoor communication error Transmitting error Outdoor unit Miswiring of indoor outdoor unit connecting wire excessive numb...

Страница 73: ...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 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 W...

Страница 74: ...it number and code 52 to 221 When the temperature is 100 C or more the hundreds digit tens digit and ones digit are displayed by turns Example When 130 C 0 5 s 0 5 s 2 s C 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...

Страница 75: ...ing 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 C or less and temperature are displayed by turns C 39 to 88 When the temperature is 0...

Страница 76: ...splayed by turns 40 to 200 When the temperature is 0 C 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 C or less and temperature are displayed by turns Normal Overvoltage error Undervoltage error Input current sensor erro...

Страница 77: ...ed in the 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 3 4 5 6 1 ON 2 3 4 5 6 Error thermistor display When th...

Страница 78: ...1 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 temperature Ambient 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 0 5 s 0 5 s 2 s Outdoor temperature Heat sink TH8 on error occurring 40 to 200 40 to 200 When the temperature is 0 C o...

Страница 79: ...itch position 1 ON 2 3 4 5 6 Outdoor temperature Comp Surface TH33 52 to 221 52 to 221 When the comp surface thermistor detects 100 C or more hundreds digit tens digit and ones digit are displayed by turns Example When 105 C 0 5 s 0 5 s 2 s 05 1 C 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 ...

Страница 80: ...me 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 Initial setting 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 controlle...

Страница 81: ... 2 2 2 Mode No 11 Setting No Settings PLA ZM EA PCA M KA 1 No Vanes Vane No 3 setting Downward position than the standard Less smudging No vane function 2 Vane No 1 setting Standard Standard 3 Vane No 2 setting Less draft Upward position than the standard Less draft Upward position than the standard In this setting the ceiling may be smudged Function Settings Mode No Setting No Initial setting fac...

Страница 82: ...assword matches the Service menu will appear The type of menu that appears depends on the connected indoor units type A screen will appear that indicates the setting has been saved Navigating through the screens To go back to the Service menu button To return to the previous screen button 11 1 1 Selecting functions using the wired remote controller PAR 4xMAA x represents 0 or later Service menu No...

Страница 83: ... If the unit is common or when running all units all indoor units for the se lected refrigerant address will start fan operation Function setting Ref address Sending data 5 When the settings are completed press the button to send the setting data from the remote controller to the indoor units When the transmission is successfully completed the screen will return to the Function setting screen Note...

Страница 84: ...rect the wireless remote controller toward the receiver of the indoor unit and press the button 3 Set the unit number Press the TEMP button to set the unit number 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 bee...

Страница 85: ... set Mode number B Fig 11 3 Direct the wireless remote controller toward the receiver 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 T...

Страница 86: ...on button F1 Main display Press to decrease temperature Main menu Press to move the cursor up Function button F2 Main display Press to increase temperature Main menu Press to go to the previous page Function button F3 Main display Press to change the fan speed Main menu Press to go to the next page Function button F4 11 2 FUNCTION SELECTION OF REMOTE CONTROLLER 11 2 1 PAR 4xMAA x represents 0 or l...

Страница 87: ...le ON OFF timer Auto return Clock Main Sub Temp range Auto OFF timer Schedule Daylight saving time Clock Administrator password Bluetooth Operation locked 3D i See sensor High power Vane Louver Vent Lossnay Comfort Bluetooth connection Timer Energy saving Basic setting Display setting Operation setting Restriction Weekly timer OU silent mode Timer menu Main display Display details Contrast Brightn...

Страница 88: ...run Model name input Function setting Error history Maintenance password Dealer information input Error information Test run menu Maintenance information Filter information Cleaning Settings menu Check menu Other menu Auto descending panel Descending operation Self check Descending adjustment Remote controller check Continue from the previous page Not all functions are available on all models of i...

Страница 89: ... to set the time periods in which priority is given to quiet operation of outdoor units over temperature control Set the Start Stop times for each day of the week Select the desired silent level from Normal Middle and Quiet Night setback 1 Use to make Night setback settings Select Yes to enable the setting and No to disable the setting The temperature range and the start stop times can be set Ener...

Страница 90: ...tact information dealer s phone number can be displayed The unit model manufacturing number and contact information need to be registered in advance to be displayed Filter information Use to check the filter status The filter sign can be reset Cleaning Auto descending panel Use to lift and lower the auto descending panel Optional parts Service Test run Select Test run from the Service menu to brin...

Страница 91: ...tton 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 Cur Ref address Request code Cur Request...

Страница 92: ...it Intake air temperature Unit No 1 Heat mode 4 deg correction Indoor unit Intake air temperature Unit No 2 Heat mode 4 deg correction Indoor unit Intake air temperature 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 tempe...

Страница 93: ...nement 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 pres...

Страница 94: ...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 TH4 or comp surface temperature TH33 at time of error Outdoorunit Liquidpipe1temperature TH3 attimeoferror Outdo...

Страница 95: ...oninformation 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 inform...

Страница 96: ...de 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 7 RequestingcompressortoturnOFF ...

Страница 97: ...splay SV1 Four way valve Compressor 0 1 2 3 4 5 6 7 8 9 A b C d E F ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON Actuator output state 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 L...

Страница 98: ...pacity 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 Co...

Страница 99: ...16 11 125 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 ...

Страница 100: ...nce information unit Compressor Outdoor unit Indoor unit Accumulated operating Heat exchanger 7 Intake air time o10 hours temperature temperature Number of ON OFF Discharge 8 4 5 1 2 9 6 3 Heat exchanger times o10 times temperature temperature Operating Outside air Filter operating current A temperature time Hours The filter operating time is the time that has elapsed since the filter was reset Di...

Страница 101: ...frigerant address 01 Refrigerant address 02 Refrigerant address 15 Outdoor unit Indoor unit 01 Outdoor unit Indoor unit 01 Outdoor unit Indoor unit 01 Outdoor unit Indoor unit 01 Remote controller Smooth maintenance Return Smooth maintenance Return Smooth maintenance Return Page Page Page COMP current COMP run time COMP On Off COMP frequency A Hz Hr times Hr Ref address Cool Ref address Cool Ref a...

Страница 102: ...r heat exchanger 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 he...

Страница 103: ...emove 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 the hole on separator 7 Remove the fan motor fixing s...

Страница 104: ...EV A LEV B 6 Loosen the clamps fasteners and cable strap for the lead wire in the electrical parts box and separator See photo 4 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 3 for front 5 x 12 9 Remove the electrical parts box fixing screw 2 for front 4 x 10 then slide the electrical ...

Страница 105: ...arts box must be separated from the outdoor unit Note When reassembling the electrical parts box make sure the wirings are correct Photo 5 Photo 6 Photo 7 Photo 8 Photo 9 5 Removing the thermistor 2 Phase Pipe TH6 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Disconnect the connector TH7 6 RED on the controller circuit board in the electrical parts box See Photo 4 4 L...

Страница 106: ... protector TRS 1 Remove the service panel See Photo 1 2 Disconnect the connector TH3 WHT TH4 WH and TH33 YE on the controller circuit board in the electrical parts box See Photo 4 3 Loosen the fastener cable strap and band for the lead wire on the controller circuit board in the electrical parts box 4 Loosen the clamp for the lead wire on separator 5 Pull out the thermistor Liquid TH3 from thermis...

Страница 107: ... Remove the valve bed See Photo 14 5 Remove the side panel R 6 Recover refrigerant Removing the 4 way valve 7 Remove the 4 way valve coil See photo 13 8 Remove the welded part of 4 way valve 4 positions to remove the 4 way valve Removing the LEV 7 Remove the LEV coil See photo 13 8 Remove the welded part of LEV 2 positions to remove the LEV Removing the high pressure switch 7 Disconnect the lead w...

Страница 108: ...essor Note 1 Recover refrigerant without spreading it in the air Note 2 The compressor can be easily removed by removing separator Photo 14 11 Removing the power receiver 1 Remove the electrical parts box See photo 4 2 Remove the cover panel front See Photo 1 3 Remove the cover panel rear See Photo 1 4 Remove the ball valve fixing screws 2 for front 5x16 See Photo14 5 Remove the stop valve fixing ...

Страница 109: ...109 OCH738 ...

Страница 110: ...ICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN CCopyright 2020 MITSUBISHI ELECTRIC CORPORATION Published Mar 2020 No OCH738 Made in Japan Specifications are subject to change without notice ...

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