Haier AB142FCBIA [74/126] Commercial air conditione

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

In cooling mode, frequency will be calculated according to

the horse power of the running indoor units:

1. Every indoor unit will confirm 8 capacity codes

according to the difference between the set temperature

and the ambient temperature; then add all the capacity

code of the running indoor unit.

2. Divide the outdoor capacity into 13 capacity classes due

to the frequency; every capacity class is corresponding

with the different indoor capacity code; modify the relative

indoor capacity code due to the different ambient

temperature;

3. Compressor will confirm its target frequency according

to the sum of indoor capacity code;

Cooling target frequency

will be confirmed due to the

indoor running horse power

and the outdoor ambient

temperature:

F=C1(P-C2)+C3(T-35)+C4

Herein: C1=22, C2=160,

C3=64, C4=4200;

Compress

or capacity

output

control

Heating target frequency will be confirmed due to the indoor running horse power and the

outdoor ambient temperature:

F=C1(P-C2)+C3(7-T)+C4+C5(C6-TZ)

Herein: C1=16; C2=160; C3=32; C4=4500; C5=300; C6=45.

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