Service
54 Chiller Air-cooled Screw
■
Oil Filter
The oil filter is installed on the oil separator in oil return line to the compressor. Differential pressure between the inlet
and outlet of the oil filter must be checked periodically. On the oil separator, the core valves for connection of the
inlet/outlet with pressure gauge are installed. If the differential pressure is over 5kg/cm
2
it is recommended to disas-
semble the oil filter and wash the oil filter mesh.
■
Oil Flow Switch
The oil flow switch is also installed on the oil separator in oil return line to the compressor. The setpoint range of
the flow switch covers 3.4~4.2 l/min at increasing flow and 3.0~3.8 l/min at decreasing flow. Maximum flow rate
of the oil flow switch is 67l/min.
Item
Name
Note
Qty
Bolt
M10 x 40L
8
Service flange
Ø136 x 15t
1
Gasket
Ø90 x 1.5t
1
Spring
Ø37 x 2d
1
Oil Filter Cartridge
30 mesh/inch
1
O-ring
Ø28.24 x 2.62W
1
Oil filter Body
Ø136 x 270L
1
Refrigerant Cycle
Fig. 30
Fig. 31
Table 19
