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2. T4<3
3. Compressor is on
4. T3 TempEnterDefrost_ADD
Cleared conditions (Meet any one of the following conditions)
1. Compressor is off and T3 TempEnterDefrost_ADD +2
2. Running in cooling mode.
3. Compressor is off for 1 hour.
Condition of entry defrosting:
time1+ time2 40 minutes, When defrosting is end,time1 and time2 are cleared.
Defrosting action
4-Way valve
Compressor
10S 30S
Indoor fan
Outdoor fan
PMV
Condition of ending defrosting:
If any one of following items is satisfied, defrosting will stop and the machine will turn to normal heating
mode.
The defrosting time achieves 10min;
T3
15 ;
T3
7
for 60seconds.
1.3.3.5 High evaporator coil temp.T2 protection:
T2>60 , the compressor will stop and restart when T2<54 .
1.3.4 Auto-mode
This mode can be chosen with remote controller and the setting temperature can be changed between
17~30 .
In auto mode, the machine will choose cooling, heating or fan-only mode according to T ( T =T1-Ts).
Electrical Control System
no longer than 10min
480P
last for 20 minutes
TimeA
10S
PMV running
8 mins with 300P
Electrical Control Function
99
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