Mitsubishi Heavy Industries FDR508-A Specifikace Strana 82
- Strana / 91
- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
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80
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6.3 Diagnosing of microcomputer circuit
(1) Selfdiagnosis function
(a) Indoor unit side
Error Code
Failure at: Contents of the failure
Defective connection or broken wire for control switch signal wire.
Signal noise has entered the control switch wire.
Is the circuit board for the control switch or the circuit board for the indoor unit is defective
(communication circuit defective)?
Indoor unit heat exchanger thermistor defective (element defective or broken wire). Defective
connection of connector for thermistor.
Indoor unit return thermistor defective (element defective or broken wire). Defective connection
of connector for thermistor.
Indoor unit heat exchanger thermistor defective (short circuit).
Indoor unit circuit board defective (defective thermistor input circuit)?
Indoor unit circuit board defective (defective thermistor input circuit)?
Indoor unit circuit board defective (defective thermistor input circuit)?
Heating overload (temperature of heat exchanger for indoor unit abnormally high)
Indoor unit heat exchanger thermistor defective (short circuit).
Indoor unit circuit board defective (defective thermistor input circuit)?
Failure with the condensate pump (DM), or open circuit or disconnection of connector with the condensate pump.
Malfunctioning of the float switch (erroneous functioning)
Indoor unit circuit board defective (defective float switch input circuit)
Indoor unit circuit board defective (defective DM driving output circuit)
1 Remote controller for multiple unit control, 17 or more indoor units connected
Gas leak.
E1
E6
E7
E8
E9
E57
E10
Control switch wire
(signal noise)
Circuit board for control
switch or indoor unit
Indoor unit heat exchanger
thermistor
Indoor unit circuit board
Indoor unit air inlet thermistor
Indoor circuit board
Indoor unit heat exchanger thermistor
Indoor unit circuit board
Indoor unit circuit board
Installation and operating conditions
Indoor unit heat exchanger thermistor
Indoor unit circuit board
Failure in drainage
Float switch
Number of indoor units connected
Insufficient refrigerant
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Table of inspection items based on error codes
(2) Error diagnosis procedures at the indoor unit side
To diagnose the error, measure the voltage (AC, DC), resistance, etc. at each connector around the circuit board of indoor unit
based on the inspection display or the operation state of unit (no operation of compressor or blower, no switching of 4-way valve,
etc.). If any defective parts are discovered, replace with the assembly of parts as shown below.
(a) Single-unit replacement parts for circuit board of indoor unit. (Peripheral electric parts for circuit board.)
Indoor unit printed circuit board, thermistor (return, heat exchanger), operating switches, limit switches,
transformers, fuses.
Note (1) Use normal inspection methods to determine the condition of strong electrical circuits and frozen cycle parts.
(b) Replacement procedure of indoor unit microcomputer printed circuit board
Microcomputer printed circuit board can be replaced with following procedure.
(i) Confirm the parts numbers. (Refer to the following parts layout drawing for the location of parts number.)
Model
FDT, FDR, FDUR
Parts number
PJA505A092Z
- MULTI-TYPE 1
- PACKAGED AIR-CONDITIONER 1
- CONTENTS 2
- 1 GENERAL INFORMATION 3
- 1.3 Table of models 4
- 2 SELECTION DATA 5
- Models FDT308-A, 408-A, 508-A 6
- Models FDR208-A, 258-A 7
- Models FDR308-A, 408-A 8
- Model FDR508-A 9
- Models FDUR208-A, 258-A 10
- (2) Outdoor unit 12
- Models FDCP808HES3, 1008HES3 12
- 2.3 Exterior dimensions 16
- Models FDT258-A, 308-A 17
- Models FDT408-A, 508-A 18
- Model FDR208-A 19
- (b) Cassetteria type (FDR) 19
- Models FDR258-A, 308-A 21
- Unit : mm 23
- (c) Ceiling mounted duct type 25
- Models FDUR408-A, 508-A 26
- Unit: mm 28
- 2.4 Exterior appearance 29
- 2.5 Piping system 30
- (3) Dauble twin type 31
- Models FDCP808HES3,1008HES3 31
- 2.6 Selection chart 32
- Static pressure (Pa) 34
- 2.8 Noise level 37
- COOL HEAT 39
- 3 ELECTRICAL DATA 40
- Power wires 41
- AUTODRYCOOLFAN HEAT 42
- CnT input 48
- Set SW1 : 0~9, A~F 49
- DRY COOL FAN HEAT AUTO 50
- 02(Right) 51
- 01(Left) 51
- Error stop 52
- Operable 52
- SAFETY PRECAUTIONS 54
- 1,000 and over 55
- Obstacle 55
- FDT258~508 40~45 56
- FDT208 45~47 56
- 1000 or more 58
- ( ) 59
- • Good piping 60
- FDR258,308FDR208 FDR408,508 62
- 2~3-spot 62
- 2-spot 3~4-spot 62
- Name Q'ty Position 63
- Round head set 63
- 4 pcs. Securing the panel 63
- Ornament panel 64
- Panel inner frame 64
- Ceiling material 64
- Hole in anchor bolt 66
- Hole-in plug 66
- Suspension bolt M10 66
- Concrete 66
- CAUTION 67
- Connection of pipes 68
- Bad example 69
- Good example 69
- ● Before shipment from the 70
- OWARNING 72
- OR PROPERTY DAMAGE 72
- Gas pipe Liquid pipe Reducer 74
- Mark Mark Mark 74
- IMPORTANT 76
- Liquid service valve 77
- 6 MAINTENANCE DATA 80
- Error Code 82
- ( ) 83
- ( ) 83
- Resistance (kΩ) 84
- 63H163H1 87
- 63H263H2 87
- Compressor 88
- Resistance 89
- 63H1, 49C operation 90
- MULTI-SPLIT SYSTEM 91
- ROOM AIR-CONDITIONER 91
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