Service
Operation & Maintenance Manual 55
■
Oil Heater
■
Solenoid Valve
One of the Solenoid Valve is installed between the Flash Gas Tank where the oil separator is installed and the
other is installed between the oil filter and Flash Gas Tank. Valve on the compressor side is turned on during Full
Load operation, and off during other operations. Valve on the oil filter side is turned on when the unit is operating
to pass the oil to the compressor, and off when the operation stops to prevent the oil from back flowing.
The oil heater prevents poor lubrication due to too low viscosity. The oil heater is also installed on the oil sepa-
rator. The 150W oil heater has 220VAC power input.
Fig. 32
Fig. 33
Include Cable wire
Include DIN plug wire
3.3
68
95
85
75
54
45
25
281
72
138
38
35
1-3/8
3.0
68
95
85
75
54
45
22
256
72
138
38
28
1-1/8
EVR25
kg
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
in
12/20W
10W
weight
B
1
Max
B
L
5
max
L
3
L
4
L
2
L
H
4
H
3
H
2
H
1
Connect
MODEL
