1-Ts
High
Low
 
For other units: 
T1-Ts
High
Low
Medium
 
1.3.2.4 Low evaporator coil temperature T2 protection 
T2
On
Off
 
When the evaporator temperature goes below a preset value, the compressor stops. 
 
1.3.2.5 Condenser high temperature T3 protection 
T3
Off
On
 
When condenser temperature exceeds the preset value, the compressor stops. 
 
1.3.3 Heating Mode 
1.3.3.1 Compressor Running Guidelines 
Once the compressor starts up, it keeps running 7 minutes, then it will follow the below rules: