Haier AC122ACERA [333/408] Electric control functions

Haier AC182ACERA [333/408] Electric control functions
speed changing frequently.
1.2.1 Fan motor speed class has 7 steps, the rotation and class is as follow:
Class-0 Class-1 Class-2 Class-3 Class-4 Class-5 Class-6 Class-7
DC motor
Stop
250˄E˅ 350˄E˅ 450˄E˅ 550˄E˅ 650˄E˅ 850˄E˅ 950˄E˅
AC 3-speed motor Stop Low speed Middle speed High speed
1.2.2 Blowing remain heat after compressor shuts off
In cooling mode, when compressor shuts off, outdoor motor will enter speed Class-3 automatically, and
will shut off after blowing remaining heat for 30 seconds.
Note: adopt this control when defrost is over, outdoor motor will enter speed Class-7 when compressor
stops, and will shut off after blowing remaining water 30 seconds later, but do not blow to the air outlet grille, or
ice will be appeared
1.2.3 Outdoor motor control in cooling/dry mode
z Speed range: class 1-7
z Fan motor locked rotor: When fan motor is requested to work, if fan speed is measured to be below
50RPM and keep for 15 seconds, the compressor will stop, but 3 minutes later, it will re-start up again. If
within 10 minutes, the condition occurs 3 times, the unit will stop and alarm.
z When compressor starts up, the unit will adjust automatically in 3 minutes according to the outdoor
ambient temperature, and 3 minutes later, the unit will adjust according to the outdoor ambient
temperature and compressor running frequency.
Fan speed chart in 3 minutes after compressor starts up (control fan speed according to ambient temp. 3
minutes later):
Ambient temp. ~10 10~25 25~
Cool, dry Class-3 Class-5 Class-7
heat Class-7 Class-5 Class-3
Fan speed chart in 3 minutes after compressor starts up due to the ambient temp. and running frequency:
Compressor frequency in cooling F<25Hz
25HzİF<45Hz 45İF
Over 28ć
Class-3 Class-5 Class-7
Tao
Below 28ć
Class-1 Class-3 Class-5
Compressor frequency in heating F<25Hz
25HzİF<45Hz 45İF
Over 15ć
Class-2 Class-4 Class-5
Tao
Below 15ć
Class-3 Class-5 Class-7
1.3 Electronic expansion valve (EEV) control
1.3.1 Electronic characteristic
Max. open angle 500 pulse
Driving speed PPS
1.3.2 Initialization of EEV
EEV driving speed:
open direction: 31.25 PPS (32MS)(E); close direction: 31.25 PPS (32MS)(E)
Movement of EEV full-open, full-close:
Full-open: 470 pulse open(E);
Full-close: after 540 pulse close for 3 times (60 pulse close, 5 pulse open, stop at 5 open range at last).
1.3.3 Open angle limitation of EEV
Unit stop Adjustable upper limitation Thermostat ON Thermostat OFF Adjustable lower limitation
Cool
/ dry
5˄E˅ 470˄E˅
standard open
angle+tolerance
5˄E˅ 90˄E˅
Electric control functions
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