4/8/2008R series service manual
PAGE 17 OF 20
T< TE6
>5 Minutes
Off
Off
T> TE5
On
On
Temp. down
T< TE5
>5 Minutes
Off
Off
Condenser high-temperature protection under heating mode
T3 >65℃,turn off compressor.
TE5: Evaporator low temperature protection entering temperature
TE6: Evaporator low temperature protection restoring temperature
8.7 Dehumidifying mode
8.7.1 The 4-way valve is off in dehumidifying mode
8.7.2 Compressor and Indoor Fan actions in dehumidifying mode
Compressor run 5 minutes, and indoor fan run 5 minutes in low speed, then turn off the
compressor, indoor fan run 5 minutes in low speed. And repeat on and off cycle.
8.7.3 Low room temperature protection:
When room temperature decreases to below 10℃, the compressor and the outdoor fan
will stop(indoor fan is Breeze). Dehumidifying operation will be resumed when room
temperature restores to over 13℃.
8.7.4 Under dehumidifying mode, the anti-freezing function of the indoor heat exchanger is the
same as that of 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 outdoors fan is turned off with the on-off action of compressor in heating
mode, except for the defrosting mode or the end of defrosts.
8.8.3 Action conditions of compressor under heating mode: compressor must run for 7
minutes after starting and then judge temperature. Meanwhile other protections are still
valid.
Condition
Compressor
Outdoor fan
TA> Ts+3
Off
Off
Room temp. up
TA<Ts+3
On
On
TA< Ts+2
On
On
Room temp. down
TA>Ts+2
Off
Off
TA: Indoor ambient temperature
TS: Setting temperature through the remote controller
8.8.4 Indoor Fan actions under heating mode
Indoor Fan can be set at HIGH/MID/LOW/AUTO by using a remote controller, but
Anti-cold wind function has the priority.
Anti-cold wind control function under heating mode
Condition
TE
Indoor fan speed
TE<TE1
Off
Indoor exchanger temp. up
TE1<TE<TE2
Breeze
