3-6 FUNCTION
03-11
3-6-1 Auto Restart
The air conditioner restarts with the previous setting operation.
3-6-2 Freeze Prevention Control
3-6-3 Oil Recovery Operation / Defrost Operation
[Oil recovery operation / Defrost operation] :
It periodically returns the residual refrigerant ion oil in the indoor unit and the connection piping back to the outdoor unit ,
and prevents the compressor oil level from decreasing.
6 sec ON 2 sec OFF Blinking
Indoor unit LED : Operation LED
Indoor fan : Same operation before oil recovery operation in cooling operation or dry operation.(Heating operation: Stop)
Indoor EEV : Control pulse
During the above operation, a refrigerant noise might hear from the indoor unit.
The icing of the indoor heat exchanger is prevented during the cooling and dry mode operation.
(1) Starting Condition
Compressor is operation more than 3 minutes.
When "Heat exchanger inlet temperature T
A" continues *4 minutes or more.
Compressor is operation more than 3 minutes.
When "Heat exchanger outlet temperature T
A" continues 4 minutes or more.
(2) Operation
EEV is closed.
Fan is at the setting amount.
(3) Completing Condition
Heat exchanger inlet and middle temperature T
B
After more than 5 minutes
*
Drain pump turns off at 60 minutes past the completion of the icing protection operation.
TA
TB
1°C
7°C
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