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4. OPERATION DETAILS
(1) The function of main control
1. Time Delay Safety Control
• 3min ...
The compressor is ceased for 3 minutes to balance the pressure in the refrigeration cycle.
(Protection of compressor)
• 3sec ...
The indoor fan is ceased for 1~3 seconds to prevent relay noise.
(Protection of fan relay and micro chip)
• 1min ...
The 4-way valve is ceased for 30 sec. to prevent the refrigerant-gas abnormal noise when the Heating
operation is OFF or switched to the other operation mode.
2. Cooling Mode Operation
• When selecting the Cooling(
controller and the operation diagram is as following
Intake Air temp.
Setting Temp. +1°C
(Compressor ON)
Setting Temp. -1°C
(Compressor OFF)
Indoor Fan Speed
Compressor
) Mode Operation, the unit will operate according to the setting by the
3 minutes
Selecting
Selecting
fan speed
fan speed
ON
OFF
Selecting
fan speed
ON
– 10 –
3 minutes
Selecting
Selecting
fan speed
fan speed
OFF
ON
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