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8 Operation Details
8.1.
Cooling Mode Operation
When selecting the Cooling Mode Operation, the unit will operate according to the setting by the Remote Controller or
the control panel on the indoor unit and the operation is as the following.
Time Delay Safety Control
3 min.----If the compressor stops, it will not restart within 3 minutes.(Protection of compressor).
7 Minutes Time Save Control
7 min.----The unit will automatically operate in 7 minutes even if the room temperature is not reached.
(Prevention of raising the humidity)
Anti-Freezing Control
Compressor runs continuesely for 9 minutes or more.
If temperature of evaporator is lower than 2
for 4 minutes, the compressor will cease to prevent the
evaporator from freezing. Fan speed setting will not be
changed.
When temperature of evaporator reaches 10 ,compressor
will restart in 3 minutes.
During Cooling Mode Operation, the Time Delay Safety
※
Control is available.
Outdoor Temperature Control
If th e t emperature of outdoor heat exchanger is belo w 12 , a ten-mi nutes timer wil l sta rt timing . When the
si tuati on persi sts f or 10 minutes, the compressor will stop and time delay safety control is ava ilabl e. When
the temperature of outdoor heat exchanger rises to 13 .5
Outdoor Fan Start Control
When the compressor is started, within 30 seconds ,
the outdoor fan speed is controlled by the temperature
of outdoor heat exchanger. (Refer to Outdoor Fan Motor
Control)
Outdoor Fan Low Temp Control
The fan speed changes every two minutes and it is det ermined
by the tem perature of 1'50'' and 2' after the previous
determination.
If te mperature of out door heat exchanger is 45
the timer wil l be cleared. If the temperature declines below
45 , the t im er starts to operate.
℃
Compre sso r Rever se R otation Pro tecti on Control
If the compr essor is operatin g co ntinuously for 5 minutes or longer and temperature difference between intake
air and indoor heat exchanger is 2.5° C or less for 2 mi nutes, compress or w ill stop a nd restart automatically.
(Time delay safety control is valid)
Compressor starts for 5 minutes
T
2.5
°C
for 2 minutes
▲
≤
▲T = I
ntake air temperature -
This is to protect reverse rotation of the compressor whten there is a instantaneous power failure.
℃
continuously
℃
℃
℃
or ab ove
℃
Compressor
OFF
Indoor heat exchager temperature
13
Evaporator
Temperature
( )
℃
10
2
Time
or a bove, the t imer can be reset.
Temperatu re
of Condense r
T<0
℃
0
℃≤
T<10
℃
10
T<20
℃ ≤
℃
20
T<25
℃ ≤
℃
25
℃≤
T
Temp of
Exchanger
50℃
40℃
Fan 1 tap up
35℃
Present si tuat ion remains
30℃
25℃
Fan 1 tap down
Compressor restarts
CS-C45FFH / CU-C45FFH
Restart
4 minutes
Compressor ceases
Fan Speed (Tap)
1
4
7
17
30
NO 30
Fan 2 taps up
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