Haier AC282AFEAA [336/408] Electric control functions

b. -6ć(E)<Tao<5ć, TeİChTa oˉ¢;

Set ¢as the following according to the selection of dip-switch:

Jumper selection L M H

¢(ć) 10(E) 7(E) 6(E)

In the place easy to frost, it is H; in the place difficult to frost, it is L; when out of factory, it is M.

Herein: C: Tao˘0ć, C=0.8 Taoı0ćˈC=0.6

c. Tao<-6ć, Teİ-12ć(E) and defrost compressor has run for 65 minutes (E) in all.

1.5.3 The control details refer to the following figure.

1.5.4 Cancel condition:

a. It will take 10 minutes(E) from beginning defrosting to quit it.

b. Te sensor will measure the condition of outdoor heat exchanger, if the temp. is over 10ć for 60

seconds in all or is up to 14ć for 30 seconds in all, the defrosting will be over.

Ordinary defrost operation flow char:

beginning end

inverter compressor indicated FQY 60s defrosting FQY 85Hz(E) 60s soft startup

0HZ 0HZ

10s

outdoor motor ON send defrosting signal to indoor auto

OFF

4-way valve ON

OFF

Unloading valve SV1 OFF auto

350-pulse(E)

expansion valve PMV auto open angle auto open angle

all indoor motors ON

OFF anti-cold air function

B. Realtime bypass defrost: when the second bit is ON, defrost can be finished in heating mode directly and

not need to enter cooling mode by the open angle of SV1 and SV2 to bypass the refrigerant to condenser,

meanwhile ensure the indoor unit is heating..

Enter condition

1. When Tao˚15ć(E), not enter defrost;

2. In heating mode, compressor is running for 10 minutes(E) contineously, or has run for 30 minutes(E) in all,

by measuring the defrosting sensor Te(detect the outdoor heat exchanger frost condition) and outdoor

ambient temp. sensor Tao, if for 5 minutes the below conditions can be met contineously, system will enter

Electric control functions

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