Johnson Controls (H,Y)VAHP072B31CW, Installation And Maintenance Manual

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P00877Q
71
Code Category Content of Abnormality Leading Cause
31
System
Incorrect Capacity Setting of Outdoor Unit and
Indoor Unit
Incorrect Capacity Code Setting of Combination
Excessive or Insufficient Indoor Unit Total
Capacity Code
35 Incorrect Setting of Indoor Unit No. Duplication of Indoor Unit No. in same Refrigerant Group
36 Incorrect Indoor Unit Combination Indoor Unit is Designed for R22
38
Problem with Protective Pickup Circuit
in Outdoor Unit Failure of Protection Detecting Device
(Incorrect Wiring of Outdoor PCB)
39 Compressor
Problem with Running Current at
Constant Speed Compressor
Overcurrent, Blown Fuse, Current Sensor Failure,
Instantaneous Power Failure, Voltage Drop,
Abnormal Power Supply
3A
Outdoor Unit
Problem with Running Outdoor Unit Capacity Outdoor Unit Capacity > 360 MBH
3b
Incorrect Setting of Outdoor Unit Models
Combination or Voltage
Incorrect Combination between Inverter PCB
and Outdoor PCB Communication Problem between Inverter PCB
and Outdoor PCB
Incorrect Setting of Main and Sub Unit(s)
Combination or Voltage
3d
3E
Communication Problem between Main Unit
and Sub Unit(s) Incorrect Wiring, Disconnected Wire, Broken Wire,
PCB Failure
43
Protection
Device
Activation of Compression Ratio Decrease
Protection Device Defective Compression (Failure of Compressor
of Inverter, Loose Power Supply Connection)
44
Activation of Low Pressure Increase Protection
Device Overload at Cooling, High Temperature at Heating,
Expansion Valve Locking (Loose Connector)
45
Activation of High Pressure Increase Protection
Device Overload Operation (Clogging, Short-Pass), Pipe
Clogging, Excessive Refrigerant, Inert Gas Mixing
47
Activation of Low Pressure Decrease Protection
Device (Vacuum Operation Protection)
Insufficient Refrigerant, Refrigerant Piping,
Clogging, Expansion Valve Locking at
Open Position (Loose Connector)
48 Activation of Inverter Overcurrent Protection Device Overload Operation, Compressor Failure
51 Sensor Problem with Inverter Current Sensor Current Sensor Failure
53
Inverter
Inverter Error Signal Detection
Driver IC Error Signal Detection (Protection for
Overcurrent, Low Voltage, Short Circuit)
54 Abnormality of Inverter Fin Temperature
Abnormal Inverter Fin Thermistor,
Heat Exchanger Clogging, Fan Motor Failure
55 Inverter Failure Inverter PCB Failure
57
Fan
Controller
Activation of Fan Controller Protection
Driver IC Error Signal Detection (Protection for Overcurrent,
Low Voltage, Short Circuit), Instantaneous Overcurrent
5A Abnormality of Fan Controller Fin Temperature
Fin Thermistor Failure, Heat Exchanger Clogging,
Fan Motor Failure
5b Activation of Overcurrent Protection Fan Motor Failure
5C Problem with Fan Controller Sensor
Failure of Current Sensor (Instantaneous Overcurrent,
Increase of Fin Temperature, Low Voltage,
Ground Fault, Step-Out)
EE Compressor
Compressor Protection Alarm
(It can not be reset from Wired Controller)
This alarm code appears when the following alarms*
occurs three times within 6 hours.
*02, 07, 08, 39, 43 to 45, 47
b1
Outdoor Unit
No. Setting Incorrect Setting of Unit and Refrigerant System
Number There are 64 or more numbers Set for Address or
Refrigerant System.
b5
Indoor Unit
No. Setting
Incorrect Indoor Unit Connection No. Setting
There are 17 or More Non-Corresponding to H-LINK II
Units are Connected to One System.