Mitsubishi Electric Mr.Slim PUHZ-P100VHA2 Service Manual Download Page 71

Page: 71 / 138

1
2
3
4
5
6

Gray

Orange
Red

Yellow
Black

Parts name

Check points

Disconnect the connector then measure the resistance with a tester.

(At the ambient temperature 10

- 30

)

Thermistor (TH3)

<Outdoor Pipe>,

<Liquid>
Thermistor (TH4)

<Discharge>
Thermistor (TH6)

<Outdoor 2-Phase Pipe>,

<2-Phase Pipe>
Thermistor (TH7)

<Outdoor>, <Ambient>
Thermistor (TH8)

<Heat Sink>
Thermistor (TH32)

<Comp.Surface>

Normal

160k

- 410k

4.3k

- 9.6k

39k

- 105k

TH4,TH32

TH3
TH6
TH7
TH8

Abnormal

Open or short

Measure the resistance between the terminals with a tester.

(At the ambient temperature 20

)

Solenoid Valve Coil
<Four-Way Valve>
(21S4)

Motor for Compressor
(MC)

Linear Expansion Valve
(LEV-A)

Normal

Abnormal

Open or short

Except P125/P140VHA2

P125/P140VHA2

Disconnect the connector then measure the resistance with a tester.

(Winding temperature 20

)

Normal

Gray - Black

Gray - Red

Gray - Yellow

Gray - Orange

Abnormal

46 ± 3

Open or short

Measure the resistance between the terminals with a tester.

(At the ambient temperature 20

)

Normal

1450 ± 150

Abnormal

Open or short

Solenoid Valve Coil
<Bypass valve>
(SV)
For P125, 140

Refer to next page.

Fan Motor (MF1,MF2)

1500 ± 150

1435 ± 150

P125/140V

P100V

0.88

P100Y

1.41

0.53

P125/140Y

1.02

Measure the resistance between the terminals with a tester.

(Winding temperature 20

)

Normal

Abnormal

Open or short

11-6. HOW TO CHECK THE PARTS
PUHZ-P100/125/140VHA2.UK PUHZ-P125/140VHA2

.UK

PUHZ-P100/125/140VHA3.UK PUHZ-P100/125/140VHA3R1.UK
PUHZ-P100/125/140VHA3R2.UK PUHZ-P125/140VHA3R3.UK
PUHZ-P100VHA4.UK
PUHZ-P100/125/140YHA.UK PUHZ-P100/125/140YHAR1.UK
PUHZ-P125/140YHAR2.UK PUHZ-P100YHA2.UK
PUHZ-P100YHA2R1.UK

OCH415G

Summary of Contents for Mr.Slim PUHZ-P100VHA2

Page 1: ...NTENANCE FUNCTION 114 14 MONITORING THE OPERATION DATABY THE REMOTE CONTROLLER 118 15 DISASSEMBLY PROCEDURE 129 PARTS CATALOG OCB415 Outdoor unit Model names PUHZ P100VHA2 PUHZ P125VHA2 PUHZ P140VHA2 PUHZ P100VHA3 PUHZ P125VHA3 PUHZ P140VHA3 PUHZ P100VHA4 PUHZ P100YHA PUHZ P100YHA2 PUHZ P125YHA PUHZ P140YHA Service Ref Refer to page 2 Note RoHS compliant products have G mark on the spec name plate...

Page 2: ...ise filter circuit board N F and Active filter mod ule ACTM inclucling P B have been changed PUHZ P100YHA UK PUHZ P100YHAR1 UK PUHZ P125YHA UK PUHZ P125YHAR1 UK PUHZ P140YHA UK PUHZ P140YHAR1 UK Power circuit board P B has been changed Controller circuit board C B has been changed S W version up Service Ref PUHZ P100VHA2 UK PUHZ P125VHA2 UK PUHZ P125VHA21 UK PUHZ P140VHA2 UK PUHZ P140VHA21 UK PUHZ...

Page 3: ... 100 125 140KA OCH454 OCB454 OCH453 OCB453 PEAD RP35 50 60 71 100 125 140JA L PEAD RP35 50 60 71 100 125 140JA L UK HWE08130 BWE08240 INDOOR UNIT S SERVICE MANUAL 3 SAFETY PRECAUTION 3 1 ALWAYS OBSERVE FOR SAFETY Before obtaining access to terminal all supply circuits must be disconnected Preparation before the repair service Prepare the proper tools Prepare the proper protectors Provide adequate ...

Page 4: ...charging cylinder is used the composition of refrigera nt will change and the efficiency will be lowered Flare tool Electronic refrigerant charging scale Vacuum pump adaptor Size adjustment gauge Gauge manifold Torque wrench Gas leak detector Charge hose Tools for R410A Contamination inside refrigerant piping can cause deterio ration of refrigerant oil etc If dirt dust or moisture enters into refr...

Page 5: ...ylinder Check that cylinder for R410A on the market is syphon type Charging should be performed with the cylinder of syphon stood vertically Refrigerant is charged from liquid phase No Tool name Specifications 1 Gauge manifold Only for R410A Use the existing fitting specifications UNF1 2 Use high tension side pressure of 5 3 MPa G or over 2 Charge hose Only for R410A Use pressure performance of 5 ...

Page 6: ... 27 0 36 0 Nominal dimensions inch Flare nut dimensions Outside diameter Dimension B mm R410A 36 0mm for indoor unit of RP100 125 and 140 R22 Gauge manifold Charge hose Gas leak detector Refrigerant recovery equipment Refrigerant cylinder Applied oil Safety charger Charge valve Vacuum pump Flare tool Bender Pipe cutter Welder and nitrogen gas cylinder Refrigerant charging scale Vacuum gauge or the...

Page 7: ...mpletely eliminated This unique system improves the quality and reliability of the work done It also helps to speed up the installation time PUHZ P100VHA2 UK PUHZ P100VHA3 UK PUHZ P125VHA2 UK PUHZ P140VHA2 UK PUHZ P125VHA21 UK PUHZ P140VHA21 UK PUHZ P100VHA3R1 UK PUHZ P100VHA3R2 UK PUHZ P100VHA4 UK PUHZ P100YHA UK PUHZ P100YHAR1 UK PUHZ P100YHA2 UK PUHZ P100YHA2R1 UK PUHZ P125VHA3R1 UK PUHZ P140VH...

Page 8: ...5 88 5 8 Flared Flared Max 30m Max 50m Heating 12 62 HP switch Discharge thermo Comp surface thermo VHA3R2 Single 50Hz 230V OUTDOOR UNIT REFRIGERANT PIPING 28 A A kW W kW min CFM dB dB mm in mm in mm in kg lbs kg lbs L mm in mm in Power supply phase cycle voltage Running current Max current External finish Refrigerant control Compressor Model Motor output Starter type Protection devices Crankcase ...

Page 9: ...h Service Ref PUHZ P140VHA2 UK PUHZ P140VHA21 UK PUHZ P140VHA3 UK PUHZ P140VHA3R1 UK PUHZ P140VHA3R2 UK PUHZ P140VHA3R3 UK PUHZ P125VHA2 UK PUHZ P125VHA21 UK PUHZ P125VHA3 UK PUHZ P125VHA3R1 UK PUHZ P125VHA3R2 UK PUHZ P125VHA3R3 UK Cooling 17 37 Munsell 5Y 7 1 Munsell 3Y 7 8 1 1 VHA3R1 R2 R3 Linear Expansion Valve Hermetic TNB306FPGM TNB306FPGMT VHA3R3 Inverter 30 Plate fin coil Propeller fan 2 0 ...

Page 10: ... 05 HP switch Discharge thermo Comp surface thermo YHAR1 3phase 50Hz 400V OUTDOOR UNIT REFRIGERANT PIPING 13 A A kW W kW min CFM dB dB mm in mm in mm in kg lbs kg lbs L mm in mm in Power supply phase cycle voltage Running current Max current External finish Refrigerant control Compressor Model Motor output Starter type Protection devices Crankcase heater Heat exchanger Fan Fan drive No Fan motor o...

Page 11: ...ng W D H Liquid Gas Indoor side Outdoor side Height difference Piping length Service Ref PUHZ P140YHA UK PUHZ P140YHAR1 UK PUHZ P140YHAR2 UK PUHZ P125YHA UK PUHZ P125YHAR1 UK PUHZ P125YHAR2 UK Cooling 6 18 Munsell 3Y 7 8 1 1 Linear Expansion Valve Hermetic TNB306FPNM TNB306FPNMT YHAR2 Inverter 30 Plate fin coil Propeller fan 2 0 060 0 060 100 3 530 Reverse cycle 950 37 3 8 330 30 13 1 3 16 1 350 5...

Page 12: ... P140VHA3R2 UK PUHZ P140VHA3R3 UK PUHZ P140YHA UK PUHZ P140YHAR1 UK PUHZ P140YHAR2 UK U V U W W V Service Ref Compressor model Winding Resistance TNB306FPGM at 20 C 0 53 0 53 0 53 TNB306FPGMT 0 53 0 53 0 53 PUHZ P125 140VHA2 UK PUHZ P125 140VHA21 UK PUHZ P125 140VHA3 UK PUHZ P125 140VHA3R1 UK PUHZ P125 140VHA3R2 UK TNB220FLHMT 0 88 0 88 0 88 PUHZ P100VHA2 UK PUHZ P100VHA3 UK PUHZ P100VHA3R1 UK PUH...

Page 13: ...ARING FOR CONTINUOUS NOISE OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 μbar BAND CENTER FREQUENCIES Hz NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 PUHZ P125VHA2 UK PUHZ P125VHA21 UK PUHZ P125VHA3 UK PUHZ P125VHA3R1 UK PUHZ P125VHA3R2 UK PUHZ P125VHA3R3 UK PUHZ P125YHA UK PUHZ P125YHAR1 UK PUHZ P125YHAR2 UK COOLING MODE HEATING 51 SPL dB 55 LINE 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 ...

Page 14: ...ing 11 200 3 28 Cooling 12 300 4 09 Heating 14 000 4 11 Cooling 13 600 5 21 Heating 16 000 4 98 12 26 4 78 2 90 29 6 0 92 9 4 72 7 48 6 10 1 5 27 19 14 8 35 24 0 74 0 21 12 62 5 05 2 57 26 2 0 62 6 3 75 5 41 4 0 1 5 20 15 43 4 7 6 13 98 5 00 2 90 29 6 0 92 9 4 72 7 48 6 10 1 5 27 19 14 8 35 24 0 74 0 21 14 70 5 26 2 57 26 2 0 62 6 3 75 5 41 4 0 1 5 20 15 43 4 7 6 17 37 6 18 2 68 27 3 0 86 8 8 67 8...

Page 15: ...pace 30 Please secure the unit firmly with 4 foundation M10 bolts Bolts and washers must be purchased locally Foundation bolt height Handle for moving Side Air Intake Front piping cover Rear piping cover 145 220 30 145 81 219 145 71 71 Drain hole 5 W33 Bottom piping hole Knockout Air Intake Rear Air Intake Handle for moving Handle for moving 23 943 473 950 322 1 447 1 443 670 Terminal Connections ...

Page 16: ...round the unit 2 SERVICE SPACE 3 FOUNDATION BOLTS 4 PIPING WIRING DIRECTIONS Piping and wiring connections can be made from 4 directions front right rear and below 30 FOUNDATION 150 500 500 10 Service space 600 175 175 330 417 42 66 53 56 45 19 28 370 2 U Shaped notched holes Foundation Bolt M10 2 12 x 36 Oval holes Foundation Bolt M10 Installation Feet 30 45 40 65 92 27 55 23 73 63 Rear piping ho...

Page 17: ...gram Service space 30 Please secure the unit firmly with 4 foundation M10 bolts Bolts and washers must be purchased locally Foundation bolt height Handle for moving Side Air Intake Front piping cover Rear piping cover 145 220 30 145 81 219 145 71 71 Drain hole 5 W33 Bottom piping hole Knockout Air Intake Rear Air Intake Handle for moving Handle for moving 23 943 473 950 322 1 447 1 443 670 Termina...

Page 18: ...ckout Hole Details 1 FREE SPACE Around the unit 2 SERVICE SPACE 3 FOUNDATION BOLTS 4 PIPING WIRING DIRECTIONS Piping and wiring connections can be made from 4 directions front right rear and below 30 FOUNDATION 150 500 500 10 Service space 600 175 175 330 417 42 66 53 56 45 19 28 370 2 U Shaped notched holes Foundation Bolt M10 2 12 x 36 Oval holes Foundation Bolt M10 Installation Feet 30 45 40 65...

Page 19: ...e access are shown in the below diagram Service space 30 Please secure the unit firmly with 4 foundation M10 bolts Bolts and washers must be purchased locally Foundation bolt height Handle for moving Side Air Intake Front piping cover Rear piping cover 145 220 30 145 81 219 145 71 71 Drain hole 5 W33 Bottom piping hole Knockout Air Intake Rear Air Intake Handle for moving Handle for moving 23 943 ...

Page 20: ...ion of STOP VALVE connection location Example of Notes Piping Knockout Hole Details 1 FREE SPACE Around the unit 2 SERVICE SPACE 3 FOUNDATION BOLTS 4 PIPING WIRING DIRECTIONS Piping and wiring connections can be made from 4 directions front right rear and below 30 FOUNDATION 150 500 500 10 Service space 600 175 175 330 417 41 56 53 54 41 19 28 370 2 U Shaped notched holes Foundation Bolt M10 2 12 ...

Page 21: ...needed for service access are shown in the below diagram Service space 30 Please secure the unit firmly with 4 foundation M10 bolts Bolts and washers must be purchased locally Foundation bolt height Handle for moving Side Air Intake Front piping cover Rear piping cover 145 220 30 145 81 219 145 71 71 Drain hole 5 W33 Bottom piping hole Knockout Air Intake Rear Air Intake Handle for moving Handle f...

Page 22: ... inch 1 Indication of STOP VALVE connection location Example of Notes Piping Knockout Hole Details 1 FREE SPACE Around the unit 2 SERVICE SPACE 3 FOUNDATION BOLTS 4 PIPING WIRING DIRECTIONS Piping and wiring connections can be made from 4 directions front right rear and below 30 FOUNDATION 150 500 500 10 Service space 600 175 175 330 417 41 56 53 54 41 19 28 370 2 U Shaped notched holes Foundation...

Page 23: ...VMNT CNDM Connector A Control Service Inspection Kit Connector Connected to Optional M NETAdapter Board Connector Connected to Optional M NETAdapter Board Connector Connected for Option Contact Input X51 X52 X54 X55 Relay CNVMNT WHT CNMNT WHT CNM WHT CN5 WHT CN2M WHT CND WHT CN4 WHT CN2 WHT 21S4 GRN SS WHT CN52C BLK CN5 RED RED CNAC2 WHT CNAC1 NO LO SV2 BLU 2 CNDM WHT CN51 WHT 5 5 5 3 1 1 5 1 1 6 ...

Page 24: ...24 PUHZ P100VHA3R2 UK PUHZ P125VHA3R2 UK PUHZ P140VHA3R2 UK PUHZ P125VHA3R3 UK PUHZ P140VHA3R3 UK The black square indicates a switch position OCH415G ...

Page 25: ...ay SS Connector Connection for Option LEV A Power Module Connection Terminal Reactor Connection Terminal Ground DCL1 DCL2 IGBT EI E2 E3 E4 P B Power Circuit Board Connection Terminal U V W Phase NI Connection Terminal N Phase LI Connection Terminal L Phase U V W Switch Function Switch SW9 CN5 WHT 3 1 TB7 2 1 CND WHT CN2M WHT M NETADAPTER M NET A B S When M NET adapter is connected CNVMNT WHT 3 1 C...

Page 26: ...26 PUHZ P100YHA UK PUHZ P125YHA UK PUHZ P140YHA UK The black square indicates a switch position OCH415G ...

Page 27: ...27 The black square indicates a switch position PUHZ P100YHAR1 UK PUHZ P125YHAR1 UK PUHZ P140YHAR1 UK PUHZ P125YHAR2 UK PUHZ P140YHAR2 UK OCH415G ...

Page 28: ...Option LEV A Linear Expansion Valve C B Controller Circuit Board LED1 LED2 LED Operation Inspection Indicators DCL Reactor SW1 Switch Manual Defrost Defect History Record Reset Refrigerant Address F1 F2 F3 F4 Fuse T6 3AL250V ACL4 Reactor X51 X52 X54 X55 Relay TH8 t LEV A WHT 6 1 3 CNVMNT WHT CN4 WHT CNMNT WHT 3 1 5 1 CN5 WHT 3 1 TB7 5 1 2 5 1 CND WHT CN2M WHT M NET When M NET adapter is connected ...

Page 29: ...V A Linear Expansion Valve C B Controller Circuit Board LED1 LED2 LED Operation Inspection Indicators DCL Reactor SW1 Switch Manual Defrost Defect History Record Reset Refrigerant Address F1 F2 F3 F4 Fuse T6 3AL250V ACL4 Reactor X51 X52 X54 X55 Relay TH8 t LEV A WHT 6 1 3 CNVMNT WHT CN4 WHT CNMNT WHT 3 1 5 1 CN5 WHT 3 1 TB7 5 1 2 5 1 CND WHT CN2M WHT M NET When M NET adapter is connected 1 2 3 4 C...

Page 30: ...e of A control wiring there is high voltage potential on the S3 terminal caused by electrical circuit design that has no electrical insulation between power line and communication signal line Therefore please turn off the main power supply when servicing And do not touch the S1 S2 S3 terminals when the power is energized If isolator should be used between indoor unit and outdoor unit please use 3 ...

Page 31: ...each pole shall be provided Use earth leakage breaker NV 2 Max 120 m 3 The 10 m wire is attached in the remote controller accessory Max 500 m 4 The figures are NOT always necessarily the voltage to ground Notes 1 Wiring size must comply with the applicable local and national code 2 Power supply cords and indoor unit outdoor unit connecting cords shall not be lighter than polychloroprene sheathed f...

Page 32: ...l indoor power supply terminal kit is necessary 1 In case that cable with stripe of yellow and green is available 2 In case that the flat cables are connected as this picture they can be used up to 80m 3 In case of regular polarity connection S1 S2 S3 wire size is 1 5mm 2 4 In case of regular polarity connection S1 S2 S3 5 Mentioned cable length is just a reference value It may be different depend...

Page 33: ...n 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 grounding noise does not enter into the shield wire because the earth wire and shield wire do not form 1 circuit To avoid communication errors caused by noise make sure t...

Page 34: ... 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 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 0 Refrige...

Page 35: ...mistor TH3 Thermistor TH6 Distributor Service port check Service port check Accumulator Compressor Refrigerant GAS pipe 15 88mm 5 8 Refrigerant LIQUID pipe 9 52mm 3 8 Stop valve with service port 4 way valve Service port check High pressure protect switch Linear expansion valve Thermistor TH4 Muffler Stop valve 50 Strainer 100 Strainer Strainer 40 100 Strainer Refrigerant flow in cooling Refrigera...

Page 36: ...ccumulator Compressor Refrigerant GAS pipe 15 88mm 5 8 Refrigerant LIQUID pipe 9 52mm 3 8 Stop valve with service port 4 way valve Service port check High pressure protect switch Linear expansion valve Thermistor TH32 Thermistor TH32 Muffler Stop valve 50 Strainer 100 Strainer Strainer 40 100 Strainer Refrigerant flow in cooling Refrigerant flow in heating Unit mm inch PUHZ P100VHA3R2 UK PUHZ P100...

Page 37: ...ter 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 pump down SWP sw...

Page 38: ...oncerning of parts such as electrical component controller board remote controller and etc Re check the abnormal symptom Conduct trouble shooting and ascertain the cause of the trouble according to 11 5 Troubleshooting of problems Continue to operate unit for the time being if the cause is not ascertained There is no abnormality concerning of parts such as electrical component controller board rem...

Page 39: ...1 F2 F3 F4 Remain Vane Cool mode Check the cold air blow off Heat mode Check the heat blow off 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 Check the operation of the outdoor unit s fan Press the button to return to Test run operation Press the button When the test run is completed the Test run menu screen will appea...

Page 40: ... the following screen will appear Check the error status stop the operation and consult your dealer Contact information dealer s phone number will appear if the information have been registered F1 F2 F3 F4 F1 F2 F3 F4 Error information Error reset Error reset Error code Error unit IU Ref address Unt Model name Serial No Reset Page Reset current error Error reset OK Cancel Main menu Reset error Res...

Page 41: ... 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 Four records are shown per page and the top record on the first pag...

Page 42: ...d green once and red twice blink alternately F3 F5 F9 After startup is displayed green twice and red once blink alternately EA Eb After startup is displayed only green lights up 00 After startup is displayed only green lights up 00 indicates digital display 2 Press TEST button twice 1 Turn on the main power supply 3 Press OPERATION SWITCH button 4 Press AIR DIRECTION button 5 Check the outdoor uni...

Page 43: ...roller display turned off and current operation mode are displayed 3 Press the button to activate mode then check whether cool air is blown out from the unit 4 Press the button to activate mode then check whether warm air is blown out from the unit 5 Press the button and check whether strong air is blown out from the unit 6 Press the button and check whether the auto vane operates properly 7 Press...

Page 44: ... the F1 or F2 button and press the button 1 Select Service from the Main menu and press the button 3 Error 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 button OK to del...

Page 45: ...ear on the remote controller display if the correct voltage 8 5 12 VDC is not supplied to the remote con troller 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 lin...

Page 46: ...es the latest check code can be recalled even if it is cancelled by the remote controller or power is shut off Check the error code history for each unit using the remote controller Switch to self diagnosis mode Press the CHECK button twice within 3 seconds The display content will change as shown below Set the unit number or refrigerant address you want to diagnose Press the TEMP buttons and to s...

Page 47: ...y content will change as shown below Press the FILTER button to start self diagnosis Remote controller self diagnosis result When the remote controller is functioning correctly Check for other possible causes as there is no problem with the remote controller When the remote controller malfunctions Error display 1 NG flashes The remote controller s transmitting receiv ing circuit is defective The r...

Page 48: ...de is cancelled Procedure 1 Press the CHECK button twice 2 Press the temperature buttons 3 Point the remote controller at the sensor to the indoor unit and press the HOUR button 4 Point the remote controller at the sensor to the indoor unit and press the ON OFF button Malfunction diagnosis method at maintenance service 11 3 6 Self diagnosis Wireless remote controller In case of trouble during oper...

Page 49: ...s Wireless remote controller Wired remote controller Beeper sounds OPERATION INDICATOR lamp blinks Check code Number of times Wireless remote controller Wired remote controller 1 P1 Intake sensor 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 Forced compresso...

Page 50: ...ck following items a Connection of power supply terminal block TB1 b Connection of terminal on outdoor power circuit board Disconnection of connector TABT or TABS LI or NI VHA3R2 R3 VHA4 Refer to 11 9 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 V the noise filter Y Refer to 11 9 4 Check c...

Page 51: ...ected indoor units Abnormal if the number cannot be checked automatically due to miswiring of indoor outdoor unit connecting wire and etc after power is turned on for 4 minutes 2 Abnormal if outdoor controller circuit board recognizes the number of connected indoor units as 4 units or more 1 Check disconnection or looseness or polarity of indoor outdoor unit connecting wire of indoor and outdoor u...

Page 52: ...r to 11 6 8 Replace outdoor controller board Case U2 1102 High discharging temperature 1 Abnormal if discharge temperature thermistor TH4 or TH32 exceeds 125 or 110 continuously for 5 minutes Abnormal if condenser evaporator temperature thermistor TH5 exceeds 40 during defrosting and discharge temperature thermistor TH4 or TH32 exceeds 110 2 Abnormal if discharge super heat Cooling TH4 TH5 or TH32...

Page 53: ...TH6 5107 TH7 5106 TH8 5110 Open short of outdoor unit thermistors TH3 TH6 TH7 and TH8 Abnormal if open or short is detected during compressor operation Open detection of thermistors TH3 and TH6 is inoperative for 10 seconds to 10 minutes after compressor starting and 10 minutes after and during defrosting Check which unit has abnormality in its thermistor by switching the mode of SW2 PAC SK52ST Re...

Page 54: ... R1 R2 VHA4 4 Replace outdoor power circuit board P VHA2 1 VHA3 R1 R2 VHA4 5 Replace outdoor power circuit board P VHA3R2 VHA4 Replace outdoor noise filter circuit board P VHA2 1 VHA3R1 P YHA R1 R2 YHA2 R1 6 Check RS wiring P YHA R1 R2 YHA2 R1 7 Replace RS P YHA R1 R2 YHA2 R1 8 Check CB or CB1 CB2 wiring P VHA2 1 VHA3 R1 R2 VHA4 P YHA R1 R2 9 Check CN2 wiring P VHA2 1 VHA3 R1 R2 VHA4 0 Replace out...

Page 55: ... avoid the damage unit has the system that is not able to be restarted unless the power is turned OFF once 1 Stop valve of outdoor unit is closed during operation 2 Leakage or shortage of refrigerant 3 Malfunction of linear expansion valve 1 Check stop valve 2 Check intake super heat Check leakage of refrigerant Charge additional refrigerant 3 Check linear expansion valve Refer to 11 6 Ud 1504 Ove...

Page 56: ...ing remote controller max 2units When it is not the above mentioned problem of 1 3 4 Diagnose remote controllers a When RC OK is displayed remote controllers have no problem Turn the power off and on again to check If abnormality generates again replace indoor controller board b When RC NG is displayed replace remote controller c When RC E3 or ERC 00 66 is displayed noise may be causing abnormalit...

Page 57: ...3 Defective communication circuit of indoor controller board 4 Noise has entered into indoor outdoor unit connecting wire 1 Check disconnection or looseness of indoor outdoor unit connecting wire of indoor or outdoor units 2 4 Turn the power off and on again to check Replace indoor controller board or outdoor controller circuit board if abnormality is displayed again P8 1 Slight temperature differ...

Page 58: ...e controller indicate the controller that detected abnormality 1 Transmission processor could not transmit 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 terminal block for transmission wire TB3 and terminal block for central control TB7 in ...

Page 59: ...nsmission connector CN2M of outdoor unit 3 Defective transmitting receiving circuit of outdoor unit or indoor unit Always try the followings when the error A7 occurs 1 Turn off the power supply of outdoor unit indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more and turn the power on again If malfunction was accidental the unit returns to normal 2 Check address switch of ...

Page 60: ...efrig erant system with LOSSNAY is turned off or within 2 min utes 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 When displayed address or attribute is nonexistent 1 The unit of former address does not exist as ...

Page 61: ...ion error Check LED3 on indoor controller board 1 When LED3 is not blinking Check indoor outdoor connecting wire for miswiring Converse wiring of S1 and S2 or break of S3 wiring 2 When LED3 is blinking Indoor outdoor connecting wire is normal 4 Check LED display on outdoor controller circuit board Refer to 11 10 Check protection device connector 63L and 63H for contact failure Refer to 11 9 Error ...

Page 62: ...off by the remote controller 12 Normal operation For protection of compressor 12 Normal operation 4 Even controlling by the wireless remote controller no beep is heard and the unit does not start operating Operation display is indicated on wireless remote controller 1 The pair number settings of the wireless remote controller and indoor controller board are mismatched 1 Check the pair number setti...

Page 63: ...after turning on the main power Normal The start up diagnosis will be over in around 2 minutes Mis wiring 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 64: ... 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 ...

Page 65: ...door 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...

Page 66: ...tact of the remote controller wire Check the voltage of the terminal block TB5 connecting the remote controller wire If it is not between DC 10V and DC16V the indoor controller board must be 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 ...

Page 67: ... clear FILTER from the display See the operation manual that came with the product for how to clean the filters STANDBY is displayed on the screen This is displayed when the unit starts HEAT operation 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 late...

Page 68: ...oor unit is controlling the airflow amount in order to keep the optimum operating condition A sound similar to water flowing is heard from the unit This is not a malfunction This is the sound which is heard when the refrigerant is flowing inside the indoor unit The fan speed does not match the setting of the remote controller in HEAT operation The up down vane will be automatically set to horizont...

Page 69: ... airflow direction does not change Up down vane left right louver 1 Check if the vane is set to a fixed position Check if the vane motor connector is removed 2 Check if the air conditioner has a 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 Somethi...

Page 70: ...s down Heating water drips down from the heat exchanger Make use of optional parts Drain Socket and Drain pan if these water needs to be collected and drained out for once Water or moisture is expelled from the outdoor unit Batteries are being exhausted Replace them and press the reset button of remote controller The display of wireless remote controller gets dim or does not come on The indoor uni...

Page 71: ...140VHA2 Disconnect the connector then measure the resistance with a tester Winding temperature 20 Normal Gray Black Gray Red Gray Yellow Gray Orange Abnormal 46 3 Open or short Measure the resistance between the terminals with a tester At the ambient temperature 20 Normal 1450 150 Abnormal Open or short Solenoid Valve Coil Bypass valve SV For P125 140 Refer to next page Fan Motor MF1 MF2 1500 150 ...

Page 72: ...CNF1 2 Fuse check Check the fuse F5 on outdoor controller board Power supply check Remove the connector CNF1 2 Measure the voltage in the outdoor controller circuit board TEST POINT VDC between 1 and 4 of the fan connector VDC DC250 330V TEST POINT VCC between 5 and 4 of the fan connector VCC DC15V Recover wiring Replace outdoor controller board Replace the fan motor Replace outdoor controller boa...

Page 73: ...73 t 323 1 1 Thermistor R120 7 465k 2 B constant 4057 2 Rt 7 465exp 4057 273 t 393 1 1 Medium temperature thermistor Thermistor Heat Sink TH8 VHA2 VHA21 VHA3 VHA3R1 YHA2 YHA2R1 20 250k 30 160k 40 104k 50 70k 60 48k 70 34k 80 24k 90 17 5k 100 13 0k 110 9 8k High temperature thermistor Thermistor Discharge TH4 VHA2 VHA21 VHA3 VHA3R1 Thermistor Comp Surface TH32 VHA3R2 VHA3R3 VHA4 YHA YHAR1 YHAR2 YHA...

Page 74: ...e is locked sound can be heard No sound is heard when the pulse number moves from B to A in case coil is burnt out or motor is locked by open phase Sound can be detected by placing the ear against the screw driver handle while putting the screw driver to the linear expan sion valve LEV M 1 6 4 4 3 2 1 1 Gray Orange Red Yellow Black 3 4 5 6 Connector LEV A DC12V Outdoor controller board Drive circu...

Page 75: ...o 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 bre...

Page 76: ...ling operation for more than 10 hours Neglecting this could result in freezing the heat exchanger in indoor unit 3 Emergency operation procedure 1 Turn the main power supply off 2 Turn on the emergency operation switch SWE on indoor controller board 3 Set the shorting pins of emergency operation connector CN31 on outdoor controller board to ON 4 Use SW4 2 on outdoor controller board to set the ope...

Page 77: ...ode COOL 27 5 5 25 45 50 35 5 30deg 5deg HEAT 20 5 45 50 22 5 5 5 5 30deg 5deg 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...

Page 78: ... DC SV1 CH Crankcase heater P125 P140 only Communication power supply D71 Voltage 24V DC CNF1 CNF2 Connect to the fan motor 1 4 250 330V DC 5 4 15V DC 6 4 0 6 5V DC 7 4 15V DC When stopped 7 5V DC When operated 0V 15V pulse CNDC 280V DC 1 3 Outdoor power board 63H High Pressure Switch SW4 Test operation SW6 Model select SW5 Function switch model select SW1 Forced defrost detect history record rese...

Page 79: ...N52C P100 140V SV1 CH Crankcase heater P125 P140 only SV2 Bypass valve P125 P140 only Communication power supply D71 Voltage 24V DC CNF1 CNF2 Connect to the fan motor 1 4 250 330V DC 5 4 15V DC 6 4 0 6 5V DC 7 4 15V DC When stopped 7 5V DC When operated 0V 15V pulse CNDC 280V DC 1 3 Outdoor power circuit board for P100 140V Noise filter circuit board for P100 140Y 63H High Pressure Switch SW4 Test...

Page 80: ...K CNAC1 CNAC2 230V AC Connect to the outdoor control ler circuit board CNAC EI Connect to the earth CN5 Primary current Connect to the outdoor power circuit board CN5 LO NO Voltage of 230V AC is output Connect to the outdoor power circuit board TABS TABT CN52C 52C driving signal Connect to the outdoor controller circuit board CN52C E2 Connect to the earth LI NI Voltage of 230V AC is input Connect ...

Page 81: ... LI3 NI AC230 V input Connect to the terminal block TB1 GD1 Connect to the earth CNAC1 CNAC2 AC230V Connect to the outdoor controller circuit board CNAC CNDC Connect to the outdoor controller circuit board CNDC CNL Connect to the ACL4 GD2 Connect to the earth LO1 LO2 LO3 POWER SUPPLY LO1 LO2 LO2 LO3 LO3 LO1 AC400 V OUTPUT Connect to the outdoor power circuit board TB1 L1 L2 L3 CNCT Primary current...

Page 82: ...oller circuit board CNAC CNDC Connect to the outdoor controller circuit board CNDC LO1 LO2 LO3 POWER SUPPLY LO1 LO2 LO2 LO3 LO3 LO1 AC400V OUTPUT Connect to the outdoor power circuit board TB L1 TB L2 TB L3 CNCT Primary current Connect to the out door power circuit board CN5 CNL Connect to the ACL4 GD3 Connect to the earth Outdoor noise filter circuit board PUHZ P100YHA2 UK PUHZ P100YHA2R1 UK OCH4...

Page 83: ...BS TABT Connect to the outdoor noise filter circuit board Voltage among phases 230V AC TABN2 Connect to ACTM TABN Connect to the smoothing capacitor CB TABU TABV TABW Connect to the compressor MC Voltage among phases 10V 180V AC TABP Connect to the smoothing capaci tor CB TABN1 Connect to ACTM TABP2 SC P2 Connect to ACTM CN4 Connect to the outdoor controller circuit board CN4 CN2 Connect to the ou...

Page 84: ...HA3R3 UK PUHZ P140VHA3R3 UK CNAC1 CNAC2 230 V AC Connect to the outdoor controller circuit board CNAC NI LI Voltage of 230 V AC is input Connect to the terminal block TB1 EI E4 Connect to the earth DCL1 DCL2 Connect to DCL P2 Connect to the smoothing capacitor CB U V W Connect to the compressor MC Voltage among phases 10 V 180 V AC CNDC 280 380 V DC 1 3 Connect to the outdoor controller circuit bo...

Page 85: ... U V and W shown in the diagram are not actually printed on the board TB U TB V TB W Connect to the compressor MC Voltage among phases 10V 400V AC TB L1 TB L2 TB L3 Connect to the outdoor noise filter circuit board LO1 LO2 LO3 400V AC TB N1 Connect to the smoothing capacitor CB2 POWER MODULE TB C1 Connect to the smoothing capacitor CB1 CB2 TB P2 Connect to the smoothing capacitor CB1 reactor DCL C...

Page 86: ...or 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 5V DC 2 5 Zero cross signal 0 5V DC 3 4 Not used 6 5 16V DC 7 5 16V DC 5 1 2 6 7 TB L1 TB L2 TB L3 Connect to the outdoor noise filter circuit board LO1 LO2 LO3 400V AC TB U TB V TB W...

Page 87: ...imary 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 5V DC 2 5 Zero cross signal 0 5V DC 3 4 Not used 6 5 16V DC 7 5 16V DC 5 1 2 6 7 TB U TB V TB W Connect to the compressor MC Voltage among phases 10V...

Page 88: ...rd TABN2 Error condition Normal value reference Symptom when the unit is in trouble and Io open less than 1 1 The unit does not operate can not be switched ON and L2 short 100k 1M 1 The breaker operates open 1 1 The unit does not operate can not be switched ON 2U9 Abnormal stop 2 P and L2 short 100k 1M 1 The breaker operates open 1 1 The unit does not operate can not be switched ON 2U9 Abnormal st...

Page 89: ...o ON After DIP SW1 1 is changed from OFF to ON there is no problem if DIP SW1 1 is left ON or changed to OFF again This depends on the service conditions 11 10 FUNCTION OF SWITCHES CONNECTORS AND JUMPERS 1 Function of switches 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 basical...

Page 90: ... CN31 Types Connector Switch Function Effective timing Connector SW6 SW5 6 SW6 1 SW6 2 SW6 3 SW6 4 SW6 5 SW6 6 SW6 7 SW6 8 SW5 6 Start Short Open Action by open short operation Model select Emergency operation When power supply ON Normal The black square indicates a switch position 1 2 3 4 5 6 100VHA2 1 100VHA3 R1 125VHA2 1 125VHA3 R1 140VHA2 1 140VHA3 R1 Service Ref SW5 6 1 2 3 4 5 6 1 2 3 4 5 6 ...

Page 91: ...nit 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 Error code is displayed on remote controller 2 Refer to service manual for indoor unit Check if indoor outdoor connecting wire is...

Page 92: ...Measure resistance value of outdoor thermistors Abnormality of heatsink temperature Check if indoor outdoor units have a short cycle on their air ducts Measure resistance value of outdoor thermistor TH8 Check the outdoor fan motor Check if the connector of TH3 on outdoor controller board is disconnected Abnormality of voltage Check looseness disconnection and converse connection of compressor wiri...

Page 93: ...layed while error is being postponed 3 When the display blinks Inspection code is displayed when compressor stops due to the work of protection devices Display Contents to be inspected When power 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 ...

Page 94: ... of times is 100 or more hundreds digit tens digit and ones digit are displayed by turns Example When 42500 times 425 100 times 0 5 secs 0 5secs 2 secs 0 9999 When it 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 secs 0 5secs 2 secs 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Compressor operating current 0 50 LEV A opening pulse 0 4...

Page 95: ...t are displayed by turns Example When 130 0 5 secs 0 5secs 2 secs A Code display Code display 0 20 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 Thermo ON time 0 999 Test run elapsed time 0 120 0 999 When it is 100 minutes or more the hundreds digit tens digit and ones digit are displayed by turns Example When 245 minutes 0 5 s...

Page 96: ...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 39 88 39 88 When the temperature is 0 or less and temperature are displayed by turns 39 88 When the temperature is 0 or l...

Page 97: ... 180 370 When it is 100V or more hundreds 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 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 Indoor setting temperature 17 30 Outdoor pipe temperature 2 phase TH6 39 88 Outdoor heatsink temperature TH8 40 200 17 30 39 88 When the temperature is 0 or less and temperature are...

Page 98: ...de display Blinking During postponement Lighting Cancellation of postponement 00 is displayed in case of no postponement Code display Error code 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 outside temperature TH7 8 Outdoor heatsink TH8 1 ...

Page 99: ...are displayed by turns Example When 15 C 0 5 secs 0 5secs 2 secs Outdoor pipe temperature 2 phase TH6 on error occurring 39 88 39 88 When the temperature is 0 C or less and temperature are displayed by turns Example When 15 C 0 5 secs 0 5secs 2 secs Outdoor outside temperature TH7 on error occurring 39 88 39 88 When the temperature is 0 C or less and temperature are displayed by turns Example When...

Page 100: ...ns Indoor pipe temperature Cond Eva TH5 3 Indoor 3 39 88 39 88 When the temperature is 0 C or less and temperature are displayed by turns When there is no indoor unit 00 is displayed 50 1 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Minute 15 1 15 4 1 ON 2 3 4 5 6 Normal Overvoltage error Undervoltage error Input current sensor error L1 phase open error Abnormal power...

Page 101: ...REMOTE CONTROLLER Each function can 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 Table 1 Function selections 1 Functions available when setting the unit number to 00 Select 00 referring to 4 setting the indoor unit number Meaning of Function setting Mode02 indoor temperatur...

Page 102: ...L 07 in the case of wireless remote controller When setting functions for an indoor unit in an independent system set the unit number to 01 referring to 4 setting the indoor unit number of Operating Procedure When setting functions for a simultaneous Twin Triple indoor unit system set the unit number to 01 to 03 for each indoor unit in the case of selecting different functions for each unit referr...

Page 103: ...ervice 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 simultaneousl...

Page 104: ...he 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 the s...

Page 105: ...ing mode Press and at the same time with the remote controller stopped 12 1 2 Selecting functions using the wired remote controller PAR 21MAA First try to familiarize yourself with the flow of the function selection procedure In this section an example of setting the room temperature detection position is given For actual operations refer to steps to Setting number Refrigerant address Unit number ...

Page 106: ...s there are no units that corre spondtotheselectedunitnumber Inthiscase therefrigerantaddressandunit number may be incorrect so repeat steps and to set the correct ones When grouping different refrigerant systems if an indoor unit other than the one to which the refrigerant address has been set performs fan operation there may be another refrigerant address that is the same as the specified one In...

Page 107: ...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 If a unit number that cannot be recognized by the unit is entered 3 beeps of 0 4 seconds will be ...

Page 108: ...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 109: ...nt 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 Service menu Input maintenance info Function setting Lossnay City Multi only Check Self check Maintenance password Remote controller check A...

Page 110: ... at the preset temperature after performing energy save operation for a specified time period Time can be set to a value from 30 and 120 in 10 minute increments This function will not be valid when the preset temperature ranges are restricted Schedule Set the start stop times to operate the units in the energy save mode for each day of the week and set the energy saving rate Up to four energy save...

Page 111: ...ance Select Input maintenance Info from the Service menu to bring up the Maintenance information screen The following settings can be made from the Maintenance Information screen Model name input Serial No input Dealer information input Function setting Make the settings for the indoor unit functions via the remote controller as necessary LOSSNAY setting City Multi only This setting is required on...

Page 112: ...value The automatic mode is displayed when the operation mode is selected OFF The automatic mode is not displayed when the operation mode is selected 4 3 Mode selection setting 1 Remote controller main sub setting To switch the setting press the ON OFF button Main The controller will be the main controller Sub The controller will be the sub controller 2 Use of clock setting To switch the setting p...

Page 113: ... when the operation mode is selected Initial setting value The automatic mode is not displayed when the operation mode is selected The temperature range limit is not active Initial setting value The temperature range can be changed on cooling dry mode The temperature range can be changed on heating mode The temperature range can be changed on automatic mode The remote controller will be the main c...

Page 114: ...P current COMP 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 it...

Page 115: ...th the air conditioner stopped skip to step 4 L Fixed Hz operation The operating frequency can be fixed to stabilize operation of inverter model If the air conditioner is currently stopped start it by this operation 2 Press the MODE button to select the desired operation mode Display 3 Press the FILTER button to confirm the setting Display Waiting for stabilization HEAT STABLE MODE STABLE MODE CAN...

Page 116: ...e Comp discharge temperature Outdoor ambient temperature INDOOR UNIT INLET TEMP INDOOR UNIT H EXC TEMP INDOOR UNIT FILTER USE H Indoor room temperature Heat exchanger temperature Filter operating time 12 340 hours Display Waiting for response Blinking After approx 10 seconds 1 1 Refrigerant address 00 Twin Refrigerant address 00 Outdoor unit Indoor unit 02 Indoor unit 01 Outdoor unit Remote contro...

Page 117: ...anger temperature 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 int...

Page 118: ... 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 Request code Cursor Request code 004 Discharge temperature 69 C Data display Relay output state C 4 Operation mode Operation state Request code 0 1 Operation m...

Page 119: ... Screen 4 Press the CLOCK buttons and to set the desired request code No 5 Press the FILTER button to perform data request The requested data will be displayed at in the same way as in maintenance mode Data collected during operation of the remote controller will be displayed The collected data such as temperature data will not be updated automatically even if the data changes To display the updat...

Page 120: ...ured by thermostat Indoor unit Intake air temperature Unit No 1 Heat mode 4 deg correction Indoor unit Intake air temperature Unit No 2 Heat mode 4 deg correction Indoor unit Intake air temperature 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 I...

Page 121: ...ror postponement history 1 latest Outdoor unit Error postponement history 2 previous Outdoor unit Error postponement history 3 last but one 0 255 Refer to14 2 1 DetailContentsinRequestCode Refer to14 2 1 DetailContentsinRequestCode Refer to14 2 1 DetailContentsinRequestCode Refer to14 2 1 DetailContentsinRequestCode 0000 Not connected Examples Ver 5 01 Auxiliary information displayed after version...

Page 122: ...y 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 pipe 2 temperature at time of error Out...

Page 123: ...ime Fan motor ON time Indoor fan output value Sj value Indoor fan output value Pulsation ON OFF Indoor fan output value duty value Indoor unit Model setting information Indoor unit Capacity setting information Indoor unit SW3 information Wireless pair No indoor control board side setting Indoor unit SW5 information Indoor unit Microcomputer version information Indoor unit Microcomputer version inf...

Page 124: ... 4 Relay output state Operation mode Indoor unit Control state Request code 50 Data display Operation mode Display Operation mode 0 STOP FAN C COOL DRY H HEAT d Defrost Relay output 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 ...

Page 125: ... SV1 Four way valve Compressor 0 1 2 3 4 5 6 7 8 9 A b C d E F ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON Actuator output state Display 52C SV2 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 Error content 0 0 Error content Detected Display Overvoltage Undervoltage L phase Power ...

Page 126: ...lay Request code 70 Data display Capacity 10 50 9 35 11 60 14 71 20 100 25 125 28 140 40 200 50 250 Outdoor unit Setting information Request code 71 Data display Setting information Setting information 0 0 Setting information Display Defrost mode 0 Standard 1 For high humidity Setting information Display Single Heat pump 3 phase cooling only 0 Single phase Heat pump 1 Cooling only 2 3 phase Heat p...

Page 127: ... 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 128: ... 14 34 15 35 16 36 17 37 18 38 19 39 1A 3A 1b 3b 1C 3C 1d 3d 1E 3E 1F 3F Indoor unit Capacity setting information Request code 163 Data display 0 0 See the table on the right Display Capacity setting state Display Capacity setting state 00 12 10 112 01 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...

Page 129: ...screws 5 20 to detach the fan motor See Photo 2 Fan motor fixing screws Photo 3 PUHZ P100V Photo 1 Fan motor MF1 Fan motor fixing screws Propeller Front panel Front panel fixing screws Nut Photo 2 Slide 3 Removing the control box 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 3 Disconnect the indoor outdoor connecting wire and the power supply wire from the terminal bl...

Page 130: ...g the thermistor Outdoor Ambient TH7 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 3 Disconnect the connector TH6 and TH7 red on the controller circuit board in the control box Loosen the fastener and the wire clip on the control box and unbind the lead wires 4 Loosen the clamp for the lead wire in the top of the control box See Photo 5 5 Pull out the thermistor Outdo...

Page 131: ...y sliding the coil toward you 5 Disconnect the connector 21S4 green on the controller board in the control box 6 Loosen the clamp on the separator and unbind the lead wires Removing the linear expansion valve coil 3 Remove the LEV coil by sliding the coil upward 4 Disconnect the connectors LEV A white on the controller circuit board in the control box 5 Loosen the clamp on the control box and unbi...

Page 132: ...ding 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 prevent it from heating 100 C or more then braze the pipes so that the inside of pipes are not oxidized Photo 11 PUHZ P100VHA2 UK Reactor fixing screw Reactor fixing screws Reactor DCL Control box Lead wire of high pressure sw...

Page 133: ...t using a spanner or a adjustable wrench Note Recover refrigerant without spreading it in the air 13 Removing the accumulator 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 3 Remove the cover panel front Refer to procedure 12 4 Remove the cover panel rear Refer to procedure 12 5 Remove the control box Refer to procedure 3 6 Remove the valve bed Refer to procedure 8 7 R...

Page 134: ... 2 Remove the top panel See Figure 1 3 Disconnect the indoor outdoor connecting wire and the power supply wire from the terminal block 4 Disconnect the connector CNF1 CNF2 and LEV A on the controller circuit board Symbols on the board CNF1 CNF2 Fan motor LEV A LEV 5 Disconnect the pipe side connections of the following parts Thermistor Outdoor pipe TH3 Thermistor Discharge TH4 VHA2 1 VHA3 R1 Therm...

Page 135: ...der Note When replacing thermistor Outdoor Ambient TH7 replace it together with thermistor Outdoor 2 phase pipe TH6 since they are combined together Refer to procedure 4 to remove thermistor Outdoor 2 phase pipe Photo 7 6 Removing the thermistor Outdoor pipe TH3 thermistor Discharge TH4 and thermistor Comp Surface TH32 1 Remove the service panel See Figure 1 2 Remove the top panel See Figure 1 3 D...

Page 136: ...he side panel R 5 Remove the 4 way valve coil Refer to procedure 7 6 Recover refrigerant 7 Remove the welded part of 4 way valve 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 4 way valve cover it with a wet cloth to prevent it from heating 120 C or more then braze the pipes so that...

Page 137: ...frigerant without spreading it in the air Note 2 The welded part can be removed easily by removing the right side panel Photo 9 High pressure switch Lead wire of high pressure switch LEV coil LEV A LEV Bypass valve coil SV Bypass valve coil fixing screw 4 way valve coil fixing screw 4 way valve 4 way valve coil 21S4 11 Removing the high pressure switch 63H 1 Remove the service panel See Figure 1 2...

Page 138: ...emove the control box See Photo 3 6 Remove the valve bed Refer to procedure 8 7 Remove the side panel R Refer to procedure 8 8 Recover refrigerant 9 Remove welded pipes of accumulator inlet and outlet 10 Remove 2 accumulator leg fixing screws 4 10 Note Recover refrigerant without spreading it in the air Photo 11 Compressor MC Accumulator leg Terminal cover Compressor fixing nut Accumulator Accumul...

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Mitsubishi Electric Mr.Slim PUHZ-P100VHA2, Service Manual

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