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[

VII

TROUBLESHOOTING ]

(4) Linear expansion valve

Disconnect the connector, and measure the resistance with a tester.

<Thermistor characteristic graph>

Room temperature thermistor (TH21)
Liquid pipe thermistor (TH22)
Gas pipe thermistor (TH23)

Thermistor R

0

=15k

Ω

±3%

Multiplier of B=3480k

Ω

±2%

0°C

15k

Ω

10°C 9.6k

Ω

20°C 6.3k

Ω

25°C 5.2k

Ω

30°C 4.3k

Ω

40°C 3.0k

Ω

Normal

Abnormal

(1)-(5)

White-Red

(2)-(6)

Yellow-Brown

(3)-(5)

Orange-Red

(4)-(6)

Blue-Brown

Open or short

150

Ω

±10%

White
Yellow
Orange
Blue
Red
Brown

Resis

tance (k

Ω

)

Temperature (°C)

Rt=15exp {3480(

-

)}

1

273+t

1

273

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Содержание PEFY-P20VMR-E-L

Страница 1: ...Air Conditioners For Building Application TECHNICAL SERVICE MANUAL Models PEFY P20VMR E L R PEFY P25VMR E L R PEFY P32VMR E L R For use with R410A 2006 ...

Страница 2: ...y install the unit on a surface that can withstand its weight Unit installed on an unstable surface may fall and cause injury Only use specified cables Securely connect each cable so that the terminals do not carry the weight of the cable Improperly connected cables may produce heat and start a fire Take appropriate safety measures against wind gusts and earthquakes to prevent the unit from toppli...

Страница 3: ...es clean and free of such contaminants as sulfur oxides dust dirt shaving particles oil and moisture Contaminants in the refrigerant piping may cause the refrigerator oil to deteriorate Store the piping materials indoors and keep both ends of the pipes sealed until immediately before brazing Keep elbows and other joints wrapped in plastic Infiltration of dust dirt or water into the refrigerant sys...

Страница 4: ...32VMR E L R 7 6 REFRIGERANT SYSTEM DIAGRAM Refrigerant system diagram 9 7 TROUBLESHOOTING 7 1 Check methods 10 7 2 Address switch setting 12 7 3 Dipswitch setting Factory setting 13 7 4 Functions of the LED on the indoor unit service board 13 8 DISASSEMBLY PROCEDURE 8 1 Control box 14 8 2 Fan and fan motor 15 8 3 Drainpan 16 8 4 LEV thermistor Liquid gas pipe 17 8 5 Heat exchanger 18 8 6 Control b...

Страница 5: ... 1 I FEATURES I FEATURES 1 FEATURES Model Cooling capacity Heating capacity kW PEFY P20VMR E L R PEFY P25VMR E L R PEFY P32VMR E L R 2 2 2 5 2 8 3 2 3 6 4 0 ...

Страница 6: ...ement of room temperature The sensor at the lower right hand section of the remote controller must be free from obstructions to ensure accurate measurement of room temperature Set Temperature Button Timer Menu Button Mode Button Monitor Set Button Back Button Timer On Off Button Louver Button Set Day Button Operation Button Fan Speed Button Vane Control Button Ventilation Button Operation Button C...

Страница 7: ...1Hr C F WEEKLY SIMPLE AUTO OFF FILTER FUNCTION C F TEMP Current time Timer time Centralized control indicator Timer OFF indicator Timer mode Operation mode display COOL DRY AUTO FAN HEAT Function Lock indicator Preset temperature Power indicator Louver swing Ventilation Filter sign Thermistor position Room temperature Vane setting Fan speed ...

Страница 8: ...let model mm 300 640 570 In 11 7 8 25 1 4 22 1 2 Net weight kg 18 Wire Min wire size mm in 1 6 1 8 Breaker amperage A 16 Refrigerant pipe diameter Liquid R410A mm in ø6 35 ø1 4 Brazed connection Gas R410A mm in ø12 7 ø1 2 Brazed connection Drain pipe diameter mm in Drain hose O D 26 1 1 32 Operating noise 2 Low Mid High measured in anechoic room 220V dB A 20 25 30 20 25 33 230V dB A 21 26 32 21 26...

Страница 9: ...4kΩ 30 C 4 3kΩ 40 C 3 0kΩ Gas pipe thermistor TH23 Resistance 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 4kΩ 30 C 4 3kΩ 40 C 3 0kΩ Fuse Control board F1 250V 6 3A Fan motor with Inner thermostat MF 4 pole Output 18W 4 pole Output 23W Inner thermostat Fan motor OFF 135 C 5 C ON 86 C 15 C Fan motor capacitor C1 1 5µF 440V Linear expansion valve LEV 12VDC Stepping motor drive port diameter ø3 2 0 1800 pul...

Страница 10: ...nlet Rear air inlet Rear air inlet Bottom plate Terminal block Power supply Terminal block M Net Transmission Ceiling surface Access door 1 Suspension bolt hole Air filter 3 2 A B Note 1 Use M10 suspension bolts not supplied 2 Keep the distance between the bottom end of the suspension bolt on the heat exchanger side and the top panel of the indoor unit to no more than 50 mm to allow easy removal o...

Страница 11: ... 1 5 6 CN52 1 2 3 4 5 CN51 1 2 3 4 5 CN40 1 2 3 4 L N LEV MF TH21 TH22 SW3 SW2 SW1 SWA SWC SW5 M2 M1 1 3 CN3T A B 6 5 4 3 2 1 7 8 CN29 1 2 TH23 8 7 1 2 3 4 1 2 3 4 CN42 SW4 Blue CN62 CN82 ZNR T 6 5 5 1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7 TB15 TRANSMISSION TERMINAL BLOCK TB5 TRANSMISSION TERMINAL BLOCK 8 7 5 6 4 3 2 0 9 1 F E D C B A 9 9 0 1 2 3 4 5 6 7 8 0 87 6 5 4 3 2 1 TB2 C 1 5μF TO MA REMO...

Страница 12: ...or MF 1 5µF TH22 Thermistor liquid pipe temp I B Indoor control board TH23 Thermistor gas pipe temp A B Address board SW11 A B Switch For setting the 1 s digit in the address TB2 Power supply terminal block SW12 A B Switch For setting the 10 s digit in the address TB5 Transmission terminal block SW14 A B Switch connection No setting TB15 Transmission terminal block SW1 A B Switch function setting ...

Страница 13: ...FRIGERANT SYSTEM DIAGRAM Capacity PEFY P20 25 32VMR E L R Gas pipe ø12 7 1 2 Liquid pipe ø6 35 1 4 Gas pipe thermistor TH23 Gas pipe Brazed connections Strainer 100 mesh Linear expansion valve Room temperature thermistor TH21 Heat exchanger Liquid pipe thermistor TH22 ...

Страница 14: ...aph below 2 Transformer Disconnect the connector and measure the resistance with a tester 3 Fan motor PEFY P20 25 32 Measure the resistance between the terminals with a tester at 20 C Normal Abnormal 4 3kΩ 9 6kΩ Open or short Normal Abnormal CNT 1 3 Approx 15Ω Open or short CN3T 1 3 Approx 4Ω Motor terminal or Relay connector Normal Abnormal P20 25 P32 White Black 192Ω 164Ω Open or short White Bro...

Страница 15: ...hermistor TH21 Liquid pipe thermistor TH22 Gas pipe thermistor TH23 Thermistor R0 15kΩ 3 Multiplier of B 3480kΩ 2 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 2kΩ 30 C 4 3kΩ 40 C 3 0kΩ Normal Abnormal 1 5 White Red 2 6 Yellow Brown 3 5 Orange Red 4 6 Blue Brown Open or short 150Ω 10 White Yellow Orange Blue Red Brown Resistance kΩ Temperature C Rt 15exp 3480 1 273 t 1 273 ...

Страница 16: ...outdoor unit installation manual 3 Address is set with a combination of SW12 10 s digit and SW11 1 s digit To set the address to 3 set SW12 to 0 and SW11 to 3 To set the address to 25 set SW12 to 2 and SW11 to 5 Make sure that power to the unit is turned off 1 2 3 4 5 6 7 8 910 1 2 3 5 4 Indoor unit control board ON OFF ON OFF Factory setting All models Factory setting All models Refer to the next...

Страница 17: ... powered Lit PEFY P32VMR E R PEFY P25VMR E R PEFY P20VMR E R PEFY P32VMR E L PEFY P25VMR E L PEFY P20VMR E L G01 G02 G03 SW1 SW2 SW3 SW7 SW4 SWC SWA SW5 1 2 3 4 5 6 7 8 910 1 2 3 4 5 6 7 8 910 220 V 240 V 220 V 240 V 220 V 240 V 1 1 1 1 2 1 1 1 1 3 1 1 1 1 1 2 2 2 2 4 2 2 2 2 5 2 2 2 2 3 3 3 6 3 3 3 3 7 3 3 3 3 3 4 5 4 4 8 4 4 5 4 4 9 5 4 4 5 5 10 5 5 5 5 6 6 6 6 6 6 7 7 7 8 8 8 9 9 9 10 10 10 3 3...

Страница 18: ...setting main Lead wires that are connected with the control box below can be checked Power supply lead wire Network remote contoller transmission wire Fan motor lead wire LEV lead wire Intake air thermistor lead wire Liquid pipe thermistor lead wire Gas pipe thermistor lead wire Power supply transformer lead wire Address board lead wire Control board replacement Address board replacement Capacitor...

Страница 19: ...onnector Unscrew the two fixing screws if it is difficult to remove the connector Fig 4 3 Squeeze the four tabs on the fan casing to remove it Fig 5 4 Remove the set screw on the sirocco fan and the two motor set screws to remove the sirocco fan and fan motor Fig 6 Exercise caution when removing heavy parts Filter Fig 3 Fig 4 Fan motor cable connector Fig 5 Fan casing Fig 6 Set screw ...

Страница 20: ... 3 Drainpan 1 Removing the drainpan 1 Remove the one fixing screw on the drainpan Fig 7 2 Slide the drainpan in the order as indicated with arrows and to remove the drainpan Fig 8 Exercise caution when removing heavy parts Fig 7 Fig 8 ...

Страница 21: ...move the bottom plate by unscrewing the six fixing screws Fig 9 3 Remove the LEV driving motor using two spanners Fig 10 2 Removing the thermistors 1 Remove the thermistors from the thermistor holders on the piping Fig 11 Liquid piping small diameter Gas piping large diameter Exercise caution when removing heavy parts Fig 9 LEV Fig 10 Thermistor Fig 11 ...

Страница 22: ... procedure in section 8 3 2 Remove the bottom plate according to the procedure in section 8 4 3 Remove the heat exchanger cover by unscrewing the five fixing screws Fig 12 4 Remove the heat exchanger by unscrewing the two fixing screws Fig 13 Exercise caution when removing heavy parts Heat exchanger cover Fig 12 Fig 13 ...

Страница 23: ... SW5 SWC SWA SW12 SW11 SW7 MA Remo Con CAUTION Transmission M NET Remo Con TB5 TB15 1 2 M1 M2 S Never connect Power supply Power supply EARTH N L Connector adapter Secondary Transformer Power supply terminal block DSA board Transmission terminal block Capacitor for motor Indoor unit control board Primary Address board Fan motor connector Gas thermistor Liquid thermistor ...

Страница 24: ...Oct 2006 HWE06010 Printed in Japan New publication effective Oct 2006 Specifications subject to change without notice ...

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