Service manual
34
11.7
Heating mode
11.7.1
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
11.7.2
Generally, the outdoor fan is turned off with the on-off action of compressor in heating mode, except for the defrosting
mode or the end of defrost
11.7.3
Action of compressor and outdoor fan motor at heating mode: compressor must run for 7 minutes after starting and then
judge temperature. Meanwhile other protections are still valid.
Ts+2*
T
Room temp. up
Room temp. down
Ts+3*
Compressor and
outdoor fan off
Compressor and
outdoor fan on
Ts
* This parameter can be changed from 0 to 3
11.7.4
Indoor Fan actions at heating mode
Indoor Fan can be set at HIGH/MID/LOW/AUTO by using a remote controller, but Anti-cold wind function prevails.
Anti-cold wind control function at heating mode (T=indoor exchanger temp.)
T
T temp. up
T temp. down
TE2
Setting fan speed
Fan off
Breeze
TE3
TE1
TE4
Indoor fan changes breeze when compressor stop, after 127 second, indoor fan stop
11.7.5
Auto wind at heating mode
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