Haier AC122ACERA [298/408] Electric control functions

Haier AD282AMERA [298/408] Electric control functions
1.5
2. Indoor AUTO FAN control
peed is AUTO MED, when
3. AUTO mode control
Tr˘Ts-3ć select HEAT or FAN mode
the unit will enter HEAT or FAN mode, or the unit will still be in COOL mode;
3.4 For the heat pump unit, if the unit is in HEAT mode at present, when it arrives compressor-stop
1.General features
1.1 The running mode includes AUTO, COOL, DRY, FAN and HEAT; can set the compulsory
cooling function; AUTO/HIGH/LOW 3-speed for indoor motor; can set the TIMER ON,TIMER OFF,
TIMER ON/OFF and SLEEP function; auto-check water level and control the water drainage of
water pump; the swing is controlled by stepping motor; 3-minute protection for compressor;
anti-overload protection, anti-freezed protection and bad-sendor protection; check indoor ambient
temperature, indoor coil temperature and outdoor coil temperature; can be controlled by central
controller.
1.2 LED indication: when the unit is switched on by the controller, the POWER LED will be ON,
when being switched off, the POWER LED will be OFF. If the controller is in TIMER and SLEEP
mode, the TIMER LED will be on; if it is not in TIMER and SLEEP mode, the TIMER LED will be off.
When the compressor is running, the compressor LED will be on; when it stops, this LED will be off.
1.3 Temperature compensation control: select the 4 degree compensation or no compensation by
the dip switch on indoor PCB.
1.4 There is set temperature in AUTO mode as default.
Tr stands for room temperature; Ts stands for set temperature; Tc stands for defrosting
temperature; t stands for compensation temperature; T stands for temperature difference.
1.6 T=Tr-Ts+t (t=0 in cooling mode)
1.7 T=Ts-Tr+t (t=compensation value, with compensation in heating mode; t=0, without
compensation in heating mode)
2.1 If the unit enters AUTO FAN for the first time, when T˚2, select high speed; whenTİ0,
select low speed; or it will select med speed; when thermostat is OFF, fan will be low speed. (the
conversion temperature difference is 1 degree).
2.2 If the present fan speed is AUTO HIGH, whenT˘2, fan speed will change to AUTO MED.
2.3 If the present fan s T˘0, fan speed will change to AUTO LOW;
whenT˚3, fan speed will change to AUTO HIGH.
2.4 If the present fan speed is AUTO LOW, whenT˚1, fan speed will chenge to AUTO MED.
2.5 Fan speed conversion in AUTO FAN mode: the conversion will delay for 3 minutes from HIGH
to LOW, and no delay from LOW to HIGH.
2.6 When the fan speed is HIGH/LOW/MED, on the condition that the protection does not act, the
unit will run at the set fan speed; when the protection acts, for the sake of the normal operation, the
fan speed will be forced to conversion; in Dry mode, fan motor will be changed as request.
3. AUTO mode control
3.1 When entering AUTO for the first time, the unit will select the running mode due to the below
conditions, then perform the selected mode.
TrıTs-3ć select COOL mode (includes FAN mode)
Tr˘Ts-3ć select HEAT or FAN mode
3.2 After entering the AUTO mode, the mode can change over among COOL, HEAT or FAN modes
according to the indoor ambient temperature (conversion temperature difference is f3ć).
3.3 If the unit is in COOL mode, when it arrives compressor-stop temperature, the compressor will
stop; after compressor stops for 15 minutes, the unit will check the room temperature, if Tr˘Ts-3ć,
the unit will enter HEAT or FAN mode, or the unit will still be in COOL mode;
3. Electric control functions
3.1 Electric control function for the unit with 0010452478E and 0010452325E unit
Electric control functions
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