Service Manual 145
Outdoor Units
2.5 Sump heating control
2.5.1 Inverter compressor sump heating fuction
: A function protecting inverter compressor from damages, by increasing oil viscosity in low outdoor
temperature.
For the control,compressor operates in low frequencies.
Operating condition :in case of the following 3 conditions are fulfilled at the same time.
- Outdoor temperature, D-pipe temperature, Heat sink temperature : below 0°C,
2.5.2 Constant compressor sump heater (option)
: An optional function protecting constant compressor from damages, by increasing oil viscosity in low outdoor
Temperature.
For this function, heater operates before compressor starting.
Operating condition : before the starting of compressor
outdoor temperature : below 0°C
➨
heater ON, over 3°C
➨
heater OFF
Comp.
Opening target : 0.7
LEV
0 sec.
90~300 sec.
Time (option)
15Hz
starting
starting
OD temp. < 0 ~ -10
°
C
Содержание ABNH186HLAB
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