Function - Fujitsu AUXB04GALH Service Manual

3-8-6 FUNCTION

Auto Restart
The air conditioner restarts with the previous setting operation.
Freeze Prevention Control
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
Compressor is operation more than 3 minutes.
When "Heat exchanger outlet temperature
(2) Operation
EEV is closed.
Fan is at the setting amount.
(3) Completing Condition
Heat exchanger inlet and middle temperature
After more than 5 minutes
*
Drain pump turns off at 60 minutes past the completion of the icing protection operation.
T
A
1°C
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.
IR Receiver Unit LED: Operation LED
FAN output: Same operation before oil recovery operation in cooling operation or dry operation.(Heating operation: Stop)
DX-KIT EEV : Control pulse
During the above operation, a refrigerant noise might hear from the EEV Kit.
T " continues *4 minutes or more.
A
T " continues 4 minutes or more.
A
T
B
T
B
7°C
6 sec ON 2 sec OFF Blinking
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