Daewoo DSB-075L, Service Manual

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Anti-freezing control to indoor evaporator at cooling mode( T: evaporator temp. )
Condition
Temp. Time
Compressor Outdoor fan
T> TE6 On On
Evaporator
Temp. up
T< TE6 >5 Minutes Off Off
T> TE5 On On
Evaporator
Temp. down
T< TE5 >5 Minutes Off Off
7.7 Dehumidifying mode
7.7.1 The 4-way valve is off in dehumidifying mode
7.7.2 Compressor and Indoor Fan actions in dehumidifying mode
NO Conditions Indoor Fan Compressor and Outdoor Fan
1 TA ≥ TS+2
LOW
BREEZE
ON 6minutes
OFF 4minutes
2 TS ≤ TA<TS+2
LOW
BREEZE
ON 5minutes
OFF 5minutes
3 TA < TS
LOW
BREEZE
ON 4minutes
OFF 6minutes
Repeat on and off cycle.
7.7.3 Low room temperature protection:
When room temperature decreases to below 10
℃
, compressor and outdoor fan will stop(indoor fan
is Breeze). Dehumidifying operation will be resumed when room temperature restores to over 13
℃
.
7.7.4 At dehumidifying mode, the anti-freezing function of the indoor heat exchanger is the same as that of
cooling mode.
7.7.5 At dehumidifying mode, the action of fans of indoor is the same as that of air-only mode.
7.8 Heating mode
7.8.1 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.
7.8.2 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.
7.8.3 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.
Condition Compressor Outdoor fan
T> Ts+3 Off Off Room temp. up
T<Ts+3 On On
T< Ts+2 On On Room temp. down
T>Ts+2 Off Off
7.8.4 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
Condition Indoor fan speed