Haier AD092XLERA Service Manual page 30

20. Setting indoor unit number
A. Wired control unit
Wired controller can not set the unit number.
Please set the unit number with the dip switch on the PCB.
The detailed information refers to the former information.
B. Remote control type:
1) Enter method
In OFF state, press emergency switch until 15 seconds later, the buzzer sounds 4 times, indoor will enter
the indoor unit number setting state.
2) Setting method
Press ON/OFF button (from OFF mode to ON mode), the times of SLEEP button to be pressed is the set
unit number, then press ON/OFF button to quit unit number setting state, at this time, indoor unit is at OFF
state, the display panel will display this unit number. For example, press SLEEP button once, it is No. 1
unit; press twice, it is No. 2 unit, and so on.
3) Quit method
In OFF state, press emergency switch until 15 seconds later, the buzzer sounds 5 times, the display
panel will display this unit number and you can check if there are repeated numbers.
21. Setting method of temperature compensation Tcomp
A. Wired control type unit: this function is not available
B. Remote control type unit:
In cooling or heating mode, there is always with the temp. compensation.
In heating mode: In 24℃ heating mode, press SLEEP(or SWING) button 7 times continuously within 5
seconds, indoor buzzer sounds twice, that shows temp. compensation works. Switch on the unit in
heating mode by the remote controller, press TEMP button to set the set temp., so temperature
compensation=the current set temp. - 24℃. For example, if the set temp. is 24℃, the temp.
compensation is 0℃; if the set temp. is 25℃, the temp. compensation is 1℃. The max. compensation
temp. is 6℃ (the set temp. is 30℃). If you want to cancel it, set the temp. as 24℃.
In cooling mode: In 24℃ cooling mode, press SLEEP(or SWING) button 7 times continuously within 5
seconds, indoor buzzer sounds twice, that shows temp. compensation works. Switch on the unit in
heating mode by the remote controller, press TEMP button to set the set temp., so temperature
compensation=24℃-the current set temp. . For example, if the set temp. is 24℃, the temp.
compensation is 0℃; if the set temp. is 23℃, the temp. compensation is -1℃. The max. compensation
temp. is -8℃ (the set temp. is 16℃). If you want to cancel it, set the temp. as 24℃.
So the temp. compensation range is +8℃~-6℃.
22. Anti-freezed protection
When compressor has run for over 5 minutes, to prevent indoor evaporator freezing (in cooling/dry mode),
if indoor mid-coil temp. is below -1 degree for over 5 minutes, indoor EEV will close, and compressor will
stop. When indoor mid-coil temp. is over about 10 degree, the unit will be normal.
23. Overload protection in heating mode
It is valid only in heating mode, if indoor mid-coil temp. is over about 65 degree continuously for 10
seconds, indoor will stop; while when indoor mid-coil temp. is below 52 degree for 3 seconds, indoor will
resume.
Commercial Air Conditioner
-30-
Model: AD09/12/14/182XLERA