Haier AD182ALERA Service Manual page 27

8. Electrical Control Functions
1.General features
1.1 Control mode: remotr or wired control + connecting port of long-distance control + passive
port control.
1.2 Temperature control: 16-30℃
1.3 Precise of temperature control: ±1℃
1.4 Indoor fan speed: AUTO, HIGH, MIDDLE, LOW (no AUTO when in FAN mode);
1.5 Swing control: the swing are controlled by the synchronous motor, main control board
receive usable signal and set in swing mode or remain in other mode;
1.6 running mode: AUTO , COOL, DRY, FAN and HEAT;
1.7 Healthy function: 5VDC UV generator, 12VDC negrative ion generator - high voltage
collecting-dirt, 220VAC negrative ion generator – oxygen pump;
1.8 Filter up-down control: adopt double-direction synchronous motor;
1.9 Auxiliary electric heating function: 12VDC control signal, 220VAC control signal or control
switch;
1.10 Fresh air control: 12VDC DC motor,220VAC AC control port output;
1.11 CLOCK setting, TIMER ON, OFF, ON/OFF and SLEEP fuction (only TIMER function is
viable and temperature variety is unviable when running the SLEEP function in FAN mode);
1.12 Drain system function: Water level inspection and water pump control
1.13 Compulsory cooling operation;
1.14 Safety and protection devices: 3-minute protection for compressor startup, freeze
protection device, overheat protection device, temperature cutoff protection, sensor failure,
drainage, pressure, communication etc. protection.
1.15 Indoor ambient temperature, indoor and outdoor coil temperature inspection.
1.16 start current control: the outdoor fan start after compressor running 2s in normal situation
2. LED function:
The LED for remote control type includes POWER, TIMER, COMPRESSOR, WATER PUMP;
the POWER LED also indicate failure; 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. POWER LED flashes when there are system failure, the flash times ti indicate the failure
code.
3. Indoor AUTO FAN control
If the unit enters AUTO FAN for the first time, when ΔT＞2, select high speed; whenΔT≤
a)
High
ΔT
2
Mid
0
Low
AUTO HIGH.
d) If the present fan speed is AUTO LOW, whenΔT＞1, fan speed will chenge to AUTO MED.
e) 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.
f) 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.
4. AUTO mode control
4.1 When entering AUTO for the first time, the unit will select the running mode due to the below
Commercial Air Conditioner
;
High
3
Mid
1
Low
;
0, 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).
If the present fan speed is AUTO
b)
HIGH, whenΔT＜2, fan speed will
change to AUTO MED.
ΔT
If the present fan speed is AUTO
c)
MED, whenΔT＜0, fan speed will
change to AUTO LOW; whenΔT
＞ 3, fan speed will change to
27
Model: AD182ALERA AD362AHERA
.