Toyotomi MTN-MTG A128FS Service Manual page 30

8.4.2.4 Evaporator low temperature T2 protection.
When the evaporator coil temp.T2 keeps lower than TE5 for 5 minutes(4 minutes for 21k model), the
compressor and outdoor fan will shut off.
When T2 is higher than TE6, the compressor and outdoor fan will restart up.
8.4.3 Heating Mode
8.4.3.1 Compressor running rules:
For the models, they will follow the below rules once the compressors start up:
When indoor room temp.T1 is higher than Tj, the compressor and outdoor fan will shut off. When T1 is
lower than Tk, the compressor and outdoor fan will start up.
Tj=Ts+Tc
Tk=Ts+Tc-1. Tc=1 for 7k
8.4.3.2 Outdoor fan running rules:
The outdoor units have single fan speed. The outdoor fan will run following the compressor except
when AC is in evaporator high temp. protection in heating mode , condenser high temp. protection in
cooling mode ,defrosting mode and the current protection.
Anti-cold wind function:
When evaporator coil temp.T2 is getting higher,
T2>TE2, the indoor fan will run at setting speed.
TE1<T2<TE2, the indoor fan will run at low speed.
When T2 is getting lower,
TE4<T2<TE3,the indoor fan will run at low speed.
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