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1.3.2.4 Evaporator low temperature T2 protection.
When T2<2
and lasts for 3 minutes, the indoor has no capacity demand and resume till T2 7 .
1.3.2.5 Condenser high temperature T3 protection
When T3 65
for 3 seconds, the compressor will shut off. When T3 52,the compressor will restart.
1.3.3 Heating Mode
1.3.2.1 Outdoor PMW open angle control
The unit is working in heating mode with the EXV open 300P for 3 minutes, then adjusting PMW open angle
according to the temperature of compressor discharge every 2 minutes.
1.3.3.2 Outdoor fan running rules:
1.3.3.3 Indoor fan running rules:
When the compressor is on, the indoor fan can be set to high/(med)/low/auto. And the anti-cold wind
function has the priority.
Auto fan action:
Electrical Control System
5.0
High
4.0
Medium
3.0
2.0
Low
Electrical Control Function
97
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