Haier AB242ACBEA Service Manual page 75

Commercial air conditioning 24 28 universal outdoor unit air conditioning
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g
H
In check mode, press [CHECK] to quit the check mode, and go into normal running
mode.
How to change the function switches?
No.
J01
Changeover
controller
controller
J02
Changeover of type of
wired controller
J06
Selection of room temp.
sensor
J07
Auto restart after power
failure
J03
Display
temperature
SW01
Changeover of master or
slave controller
SW01
℃ or ℉
D1
Shorten time function
D2
Compulsorily defrost
Note: 1. The switches in grey can be operated after opening the cover of wired controller.
2. Switches or jumper wire must be adjusted when the wired controller is powered off. If the
wired controller is powered on, the above operations will be invalid.
3. Shorten time function
In normal operation, D1 is in short circuit, it will enter shorten time mode, and the time will be
shortened in the proportion of 60:1. In shorten time mode, LED will flash at the frequency of
0.5 second. Cut off D1, it will quit the shorten time mode and return to the normal operation
mode.
4. Compulsorily defrost
In heating mode, D2 is in short circuit, it will enter compulsorily defrost mode; cut off D2, it
will quit.
5. Lock function
There is no lock function only in the wired controller. But when it is connected with a central
Preset
Outdoor total capacity
Type
of
Wired
Connected
and
central
Cut off
Connected
Cut off
Connected
Cut off
Connected
Cut off
of
room
Connected
Cut off
ON
OFF
ON
OFF
Connected
Cut off
Connected
Cut off
State of
Function description
switch
Central controller
Wired controller
Set as simple controller
Set as standard controller
Use the sensor in the wired
controller
Use the sensor in the indoor unit
Common control
Auto restart after power failure
Yes
No
Set as slave controller
Set as master controller
Indoor unit in shorted time
function
Common control
Send compulsorily defrost signal
to indoor unit
Common control
―――
Actual value, decimal

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