SB-110-454
Fig.13: HS.85: Replace oil filter
1 Oil filter 2 Oil filter chamber
3 Flange on the
maintenance con-
nection of the oil fil-
ter
4 Screw (4 x M12)
5 Flange gasket 6 O-ring
7 Pressure blow-off
(oil filter chamber)
8 Oil drain (oil filter)
9 Alignment pin 10 Groove
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).
▶ Loosen the four screws (4) on the flange (3) of the
maintenance connection for the oil filter. Pull the
flange upward by 15 mm and turn it 20° clockwise.
Remove the entire unit upwards. Remove oil filter
(1).
▶ Clean the oil filter chamber.
▶ Replace flat gasket (5) and O-rings (6) and insert a
new oil filter (1). Position the flat gasket in the hous-
ing according to the alignment pin (9).
▶ Fix the entire unit in the three grooves (10), turn it
20° counterclockwise and press it down, while fixing
the alignment pin (9) in the hole provided for it on the
lower side of the flange.
▶ Insert the four screws (4) into the flange (3) and
tighten them crosswise (80 Nm).
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