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APPENDIX
126
Error
List of Errors
Code
CH12002 ODU2 Indoor Sensor (Inlet Pipe) Error
ODU2 Communication Error
CH12005
(Indoor Unit ↔ Outdoor Unit)
CH12006 ODU2 Indoor Sensor (Outlet Pipe) Error
ODU2 Communication Error between Central
CH12255
Controls
ODU2 Communication Error Code is dis-
CH12XXX
played as is.
CH13002 ODU3 Indoor Sensor (Inlet Pipe) Error
ODU3 Communication Error
CH13005
(Indoor Unit ↔ Outdoor Unit)
CH13006 ODU3 Indoor Sensor (Outlet Pipe) Error
ODU3 Communication Error between Central
CH13255
Controls
ODU3 Outdoor Unit Error Code is displayed
CH13XXX
as is.
CH14002 ODU4 Indoor Sensor (Inlet Pipe) Error
ODU4 Communication Error
CH14005
(Indoor Unit ↔ Outdoor Unit)
CH14006 ODU4 Indoor Sensor (Outlet Pipe) Error
ODU4 Communication Error between Central
CH14255
Controls
ODU4 Outdoor Unit Error Code is displayed
CH14XXX
as is.
CH15002 ODU5 Indoor Sensor (Inlet Pipe) Error
ODU5 Communication Error
CH15005
(Indoor Unit ↔ Outdoor Unit)
CH15006 ODU5 Indoor Sensor (Outlet Pipe) Error
ODU5 Communication Error between Central
CH15255
Controls
ODU5 Outdoor Unit Error Code is displayed
CH15XXX
as is.
CH16002 ODU6 Indoor Sensor (Inlet Pipe) Error
ODU6 Communication Error (Indoor Unit ↔
CH16005
Outdoor Unit)
CH16006 ODU6 Indoor Sensor (Outlet Pipe) Error
ODU6 Communication Error between Central
CH16255
Controls
CH16XXX ODU6 Displays outdoor unit error code
Error
Level
2
The inlet temperature sensor of Indoor Unit #2 of COM #1 is disconnected/short circuited.
Indoor Unit #2 of COM #1 is unable to receive the communication signal from the outdoor
2
unit for more than 3 minutes.
The outlet temperature sensor of Indoor Unit #2 of COM #1 is disconnected/short cir-
2
cuited.
Indoor Unit #2 of COM #1 is unable to receive the communication signal from the Central
2
Control for more than 3 minutes. (This error occurs only when the Desired Temperature
Control Standard is set to supply.)
Displays the relevant code as is when an error occurs in the outdoor unit communicating
2
with Indoor Unit #2 of COM #1.
2
The inlet temperature sensor of Indoor Unit #3 of COM #1 is disconnected/short circuited.
Indoor Unit #3 of COM #1 is unable to receive the communication signal from the outdoor
2
unit for more than 3 minutes.
The outlet temperature sensor of Indoor Unit #3 of COM #1 is disconnected/short cir-
2
cuited.
Indoor Unit #3 of COM #1 is unable to receive the communication signal from the Central
2
Control for more than 3 minutes. (This error occurs only when the Desired Temperature
Control Standard is set to supply.)
Displays the relevant code as is when an error occurs in the outdoor unit communicating
2
with Indoor Unit #3 of COM #1.
2
The inlet temperature sensor of Indoor Unit #1 of COM #2 is disconnected/short circuited.
Indoor Unit #1 of COM #2 is unable to receive the communication signal from the outdoor
2
unit for more than 3 minutes.
The outlet temperature sensor of Indoor Unit #1 of COM #2 is disconnected/short cir-
2
cuited.
Indoor Unit #1 of COM #2 is unable to receive the communication signal from the Central
2
Control for more than 3 minutes. (This error occurs only when the Desired Temperature
Control Standard is set to supply.)
Displays the relevant code as is when an error occurs in the outdoor unit communicating
2
with Indoor Unit #1 of COM #2.
2
The inlet temperature sensor of Indoor Unit #2 of COM #2 is disconnected/short circuited.
Indoor Unit #2 of COM #2 is unable to receive the communication signal from the outdoor
2
unit for more than 3 minutes.
The outlet temperature sensor of Indoor Unit #2 of COM #2 is disconnected/short cir-
2
cuited.
Indoor Unit #2 of COM #2 is unable to receive the communication signal from the Central
2
Control for more than 3 minutes. (This error occurs only when the Desired Temperature
Control Standard is set to supply.)
Displays the relevant code as is when an error occurs in the outdoor unit communicating
2
with Indoor Unit #2 of COM #2.
2
The inlet temperature sensor of Indoor Unit #3 of COM #2 is disconnected/short circuited.
Indoor Unit #3 of COM #2 is unable to receive the communication signal from the outdoor
2
unit for more than 3 minutes.
The outlet temperature sensor of Indoor Unit #3 of COM #2 is disconnected/short cir-
2
cuited.
Indoor Unit #3 of COM #2 is unable to receive the communication signal from the Central
2
Control for more than 3 minutes. (This error occurs only when the Desired Temperature
Control Standard is set to supply.)
Displays the relevant code as is when an error occurs in the outdoor unit communicating
2
with Indoor Unit #3 of COM #2.
Cause
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