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ENGLISH
SELF DIAGNOSIS FUNCTION
h
The communication PCB address indicates the rotary switch number on communication PCB.
h
The above table shows the attachment location information of each sensor.
Error type
Display status
Output example
Detail description
Basic error
CH [error code] 0
CH 3 0
No. 3 error occurrence
Communication
PCB error
CH [error code]
[address]
CH 2 04
In address ‘No. 4’ communication PCB,
No. 2 error occurred
Sensor error
CH [error code]
[location]
CH 13 02
Air supply temperature sensor error
Outdoor unit
error
CH [error code]
[address]
CH 173 04
In outdoor unit connected to address
‘No. 4’ communication PCB, No. 173
error occurred
Location number
Location name
Corresponding sensor type
01
RA
Temperature sensor, humidity sensor
02
SA
Temperature sensor, humidity sensor
03
OA
Temperature sensor, humidity sensor, damper
04
Mixing
Temperature sensor, Damper
05
Pressure difference
Pressure difference sensor
06
Static pressure
Static pressure sensor
07
EA
Damper
SELF DIAGNOSIS FUNCTION
Error display
This function displays the type of the disorder during the self diagnosis on AHU and when a dis-
order occurred.
The disorder display displays the code in the following table on wired remote controller and AHU
Controller 7segment LED.
If 2 or more disorders occur at the same time, they are displayed according to the order of the
error number.
After an error occurred, if the disorder is repaired, the error code disappears.
Error display method
The first display on 7segment indicates the error code, and the second display means communi-
cation PCB address or sensor attachment location information.
For detail description, please refer to the following contents.
