-
37
-
'19 • SCM-SM-281
(ii) Control B
If the oat switch detects any anomalous drain condition, the drain pump motor is turned ON for 5 minutes, and
at 10 seconds after the drain pump motor OFF it checks the oat switch. If it is normal, the unit is stopped under
the normal mode or, if there is any anomalous condition, displayed by the ashing of display lights and the drain
pump motor is turned ON. (The ON condition is maintained during the drain detection.)
(12) Outline of dehumidifying (DRY) operation
(a) Purpose of DRY mode
The purpose is "Dehumidifying", and not to control the humidity to the target condition.
Indoor/outdoor unit control the operation condition to reduce the humidity, and also prevent over cooling.
27.5
25.5
18.0
18
30
(ii)SRK20, 25, 35, 50ZM-S, 71ZM-S series
Heating
Dehumidifying
Cooling
Indoor air temperature (˚C)
Outdoor air temperature (˚C)
A
(i)
(ii)
(iii)
(c)
(d)
Signals of wireless remote control (Display)
–6 –5 –4 –3 –2 –1
±
0+1+2+3+4+5+6
Setting
temperature
Cooling
Dehumidifying
Heating
on the
(a) Determination of operation mode
(13) Outline of automatic operation
(b) Outline of control
(i)
Indoor unit fan speed and compressor are controlled by the area which is selected by the temperature difference.
(ii)
The indoor unit check the current area by every 5 minutes, and operate by the next checking.
(c) Other
When the outdoor air temperature and room temperature is low for cooling operation, indoor unit can not operate in
cooling, and dehumidifying. In this case, the units operate in heating to rise the room temperature, and after that start
dehumidifying operation.
Area
DCBA
Me speed
Indoor unit
fan speed ULo(Lo) speed
STOP
Limited䠄Lower than
normal cooling operation䠅
Limited
Minimum
䠄Lower than the speed in ”Area A”䠅
STOP
Setting temperature
Difference between Setting temperature and return temperature
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