Separating And Returning Compressor Oil - Bosch ACS 810 Repair Instructions

en | 20 | ACS 810 | Service phases
8.8 Separating and returning
compressor oil
i
During the recovery phase and preparation of the
refrigerant, small quantities of compressor oil get
into the internal circuit.
M2
HIGH
T2
M1
LOW
T1
F2
6
C
Des. Description
1 Fresh oil tank
2 Vacuum pump
3 Expansion valve
4 Evaporator/oil separator
5 Compressor oil separator
6 Compressor
7 Internal refrigerant cylinder
8 Refrigerant cylinder scale
9 Used oil bottle
10 Heat exchanger
11 Refrigerant pump
T1 Low pressure hose
T2 High pressure hose
M1 Low pressure gage
M2 High pressure gage
M3 Internal refrigerant cylinder pressure gage
F1 Coarse filter
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1 689 975 253 2021-01-26
EV10
P
11
P2
HP
5
4
10
EV7
9
i
This oil is separated from the refrigerant in the
compressor oil separator (5) and is then fed back
to the compressor (6).
P1
EV1
EV8
VU1
1
3 F1
V5
V1 V3
8
Des. Description
F2 Combi filter
VU1 Oil non-return valve
EV1 Vacuum solenoid valve
EV3 Flow solenoid valve
EV5 Recovery solenoid valve
EV6 Filling solenoid valve
EV7 Oil drain solenoid valve
EV8 Oil injection solenoid valve
EV10 Refrigerant pump by-pass solenoid valve
P1 Pressure sensor
P2 Pressure switch
V1 Tank vapour side hose valve
V2 Tank liquid side hose valve
V3 Tank vapour side valve
V4 Tank liquid side valve
V5 Safety valve
V6 Non condensable drain valve
EV3
EV5
EV6
2
P
V6
V4 V2
7
Robert Bosch GmbH
M3