Haier AD072XLEAA [73/89] Electric funtions of outdoor

Haier AD072XLEAA [73/89] Electric funtions of outdoor
9.5.4. Electric funtions of outdoor
A.1 Control of the compressor, outdoor motor and 4-way valve
A.1.1 Outdoor fan motor control
A. When system do not have overheating or over current protection, outdoor fan speed
will vary with outdoor ambient temperature, as follows:
a. in cooling mode
temperature arise
super low speed
low speed
med speed
high speed
super low speed
low speed
med speed
high speed
15
24
28
13
22
26
temperature reduce
outdoor fan motor
b. in heating mode (heat pump unit)
temperature arise
super low speed
low speed
med speed
high speed
11
19
9
16
temperature reduce
outdoor fan motor
super low speed
low speed
med speed
high speed
22
23
B.When fan speed changes, if it is from Low speed to High speed, there is no time delay;
if it is from High speed to Low speed, there is 45-second delay.
C.In cooling mode, in one minute before the compressor begins to run,the outdoor motor
will be switched on to run.
D.Super low speed control:outdoor motor will be off for 1 minute at the interval of 45
seconds.
A.1.2 Compressor control
After receiving the “compressor ON” signal sent from indoor unit, the compressor will run.
Its running-stop interval is 3 minutes. Being powered on firstly is without 3-minute delay.
If the two systems receive the “compressor ON” signal simultaneously,they will start up in
turn, and the interval is 20 seconds.
A.1.3 4-way valve control
A. In cooling or dehumidification mode, 4-way valve is not electrified.
B. When receiving the “heating” and “compressor ON” signal from indoor unit, 4-way
valve and compressor will start up simultaneously.
C. In 3 minutes after heating is over, it will be shut off 2 minutes and 50 seconds later. In
3-minute standby period, at 2-minute and 50-second clock, it is electrified.
D. Changing from cooling mode to heating mode, 3 minutes later, it is eletrified.
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