Mitsubishi Heavy Industries R410A User Manual

Name: Mitsubishi Heavy Industries R410A
Brand: Mitsubishi Heavy Industries
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MITSUBISHI HEAVY INDUSTRIES - PAC SERVICE MANUAL

INDEX

MAINTENANCE DATA 2

ERROR CODES 4

PCB INDOOR UNITS 8

ERROR DISPLAY & REMEDY CHART 12

PCB OUTDOOR UNITS 22

ERROR DISPLAY – OUTDOOR UNIT 25

OPERATIONAL DATA CHECK – WIRED CONTROLLER 35

REMOTE CONTROL – WIRED 36

- SETTING FUNCTIONS 37

ERROR DISPLAY – WIRELESS CONTROL 43

REMOTE CONTROL WIRELESS 44

Index3
Maintenance Data4
Servicing4
Evacuation Procedure4
Trouble Shooting for Refrigerant Circuit5
Refrigerant Charging5
Judgement of Operating Condition by Operation Pressure5
Self Diagnosis Function6
Check Indicator Table6
Indoor Unit Side6
Outdoor Unit Side7
Display Sequence of Error, Inspection Display Lamp8
Timing of Error Detection8
Procedures of Trouble Diagnosis9
Recording and Reset of Error9
Error Diagnosis Procedures at the Indoor Unit Side9
Single-Unit Replacement Parts for Circuit Board of Indoor Unit9
Outdoor Unit9
Parts Layout on the Indoor Unit PCB10
Model: FDT Series10
Change by the Jumper Wire10
Control Change Switch (SW5, SW9, SW10)10
Model: FDEN Series11
Function of DIP Switch SW5 (Usually All Turned OFF)11
Function of DIP Switch SW9 (Usually All Turned OFF)11
Function of DIP Switch SW10 (Usually All Turned OFF)11
Check Method When the Error Code Is Display14
Power Supply Line Error14
Indoor – Outdoor Communications Trouble16
Error Display16
Indoor Unit16
Communication Error between Remote Controller~Indoor Unit17
Defective Indoor Unit Heat Exchanger Thermistor18
Detective Return Air Thermistor18
Heating Overload19
Drain Trouble19
Control of 1 Remote Controller VS Multiple Units20
Excessive Number of Units20
Fan Motor Abnormalities20
Directive Remote Controller Thermistor22
Resistance-Temperature Characteristic of Remote Controller Thermister22
Error Diagnosis Procedures at the Outdoor Units Side23
Replacement Parts Assembly Related to the Outdoor Unit Controller23
Parts Layout on the Outdoor Unit PCB24
FDCVA151~251 Type24
FDCA301~601 Type25
Communications Error During Operation27
Power Supply Phases Reversed27
Inverter Primary Current Abnormal28
Compressor Overcurrent Trouble28
Open Phase at L3 Phase of 52C Secondary Side29
Cooling Overload Operation29
Discharge Temperature Error30
Defective Outdoor Unit Heat Exchanger Thermistor30
Abnormal Temperature Detection30
Defective Outdoor Air Temperature Thermistor31
Defective Discharge Pipe Thermistor31
63H1 Operation32
Open Phase at L3-Phase of 52C Primary Side32
Current Cut32
Inverter Over-Voltage Trouble33
DC Fan Motor Abnormal33
52C Abnormal33
Power Transistor Thermistor Faulty34
Insufficient Refrigerant Volume34
Abnormalities in Compressor Starting35
Compressor Loader Position Detection Error35
Power Transistor Module (Including Drive Circuit) Check Method36
Check Abnormal Operation Data with the Remote Controller37
Outline of Operation Control by Microcomputer38
Remote Controller38
Wired Remote Controller38
Setting Functions Using the Remote Controller39
Remote Controller Unit Functions39
Function Setting Method40
Changing the Remote Controller’s Temperature Setting Range42
Cooling Test Operation Procedure43
Checking Operation Data43
Starting the Cooling Test Operation43
Canceling the Cooling Test Operation43
Test Run44
Test Run Method44
Checking the State of the Unit in Operation44
Setting SW5-1, SW5-2 On-Site44
Check Display on Wireless Specification Models45
Indication Board45
FDEN Series45
FDKN Series45
Error Code45
Wireless Remote Controller46

Mitsubishi Heavy Industries R410A User Manual

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Brand	Mitsubishi Heavy Industries
Model	R410A
Category	Air Conditioner
Language	English