Carrier 38KCR009713 - Page 55

Service manual
19
Auto fan at cooling mode:
4
T-Ts
Room temp. up
Room temp. down
5
High fan
Low fan
1
Mid. fan
Anti-freezing control to indoor evaporator at cooling mode ( T: evaporator temp. )
TE5 T
EVAP. temp. up
EVAP. temp. down
TE6
Compressor and
outdoor fan on
Compressor and outdoor
fan off (after 5 mins)
Condenser high temperature protection (only for heat pump)
TE11 T
COND. temp. up
COND. temp. down
TE10
Compressor and
outdoor fan on
Compressor and outdoor
fan off (after 5 mins)
8.7 Dehumidifying mode
Indoor fan speed at low speed.
Protection is same as cooling mode.
8.8 Heating mode
8.8.1 Generally, the 4-way valve is open in heating mode, but it is closed in defrosting mode. 4-way valve must
delay 2 minutes compared with compressor if the compressor changed into non-heating mode or turned off.
4-way valve doesn't delay in dehumidifying mode.
8.8.2 Generally, the outdoor fan is turned off with the on-off action of compressor in heating mode, except for the