LG ABNH186HLAB, Руководство по обслуживанию

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Service Manual 143
Outdoor Units
2.2 Low ambient control
Low ambient cooling case : In this situation outdoor fan works in ON/OFF control.
: If the pipe temperature 0°C and it is falling rapidly in that case compressor will run for 5 min & then it will go in
low ambient control. (
❈
Temp. value can be different for each model.)
❈
After the system is stopped by CT cut or heat sink cut-off then the cycle returns to the normal condtiond control.
2.3 Oil return control
2.3.1 Operating Contion
1) When the continuous running time is over 3hr.(option), oil returning operation is made for 3min.
In case of the initial operation, oil returning operation is made, after completing initial operation.
2) After defrost and oil returning operation, the continuous running time is resetted.
2.3.2 Operation Process
1) EEV-Full open, Hot gas bypass valve-On
2) Compressor Step-70Hz + Constant Comp. On(Option)
3) Reversing valve-Off(Process of Off/On, follows defrost operating.)
4) Outdoor Fan-Low step
(T1 = 0)
°
C
(T2 = 0)
°
C
Outdoor pipe temp
O/D fan
Set speed Off
Off
Set speed Set speed