Oil Filter - Bitzer HS.8551 Instructions De Service

WARNING
The compressor is under pressure!
Serious injuries are possible.
Depressurize the compressor!
Wear safety goggles!

8.5 Oil filter

HS.85: Oil filter integrated into the compressor and
mounted at the factory.
HS.95: Oil filter available as an optional accessory, in-
stalled externally (without integrated pressure drop
check).
HS.85: Replacing the internal oil filter (see figure 13,
page 23)
Changing the oil filter for the first time is recommended
after 50 .. 100 operating hours. During operation, the oil
Fig. 13: HS.85: Replace oil filter
1 Oil filter
3 Flange on the
maintenance con-
nection of the oil fil-
ter
5 Flange gasket
7 Pressure blow-off
(oil filter chamber)
9 Alignment pin
SB-110-3
3
4
7
2 Oil filter chamber
4 Screw (4 x M12)
6 O-ring
8 Oil drain (oil filter)
10 Groove
filter monitoring system constantly checks the pollution
degree. If the signal lamp of the oil filter monitoring
lights up (F10, see figure 10, page 16), check the oil fil-
ter for contamination and replace it if necessary.
WARNING
The compressor is under pressure!
Serious injuries are possible.
Depressurize the compressor!
Wear safety goggles!
WARNING
The oil filter chamber and the compressor are
pressure chambers independent of each other!
Serious injuries are possible.
For maintenance work, relieve separately the
compressor and the oil filter chamber of pres-
sure!
Wear safety goggles!
4
5
9 3
10 4
Replacing the oil filter
• Close the maintenance valve in the oil injection line
(9).
• Close the ECO valve.
• Lock suction gas line and discharge gas line.
• Depressurize the compressor.
• Separately depressurize the oil filter chamber (2)! To
do so, drain oil and refrigerant from the oil filter
chamber (2) through the pressure blow-off valve (7).
• Drain oil through the oil drain (8).
3
5
6
1
2
8
23