Bosch ACS 511, Repair Instruction

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1 689 975 252 2019-05-15
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Robert Bosch GmbH
Service phases | ACS 511 | 19 en
8.7 UV contrast medium filling
i
By default, individual service phases are linked to
other service phases as they are needed to fully per-
form the individual operation selected.
i
The vehicle air conditioning system is partly filled
with UV contrast medium to facilitate detection of
leaks in the event of damage to the vehicle air condi-
tioning system.
i
If " UV contrast medium filling " has been selected in
the service process, a defined quantity (time con-
trolled) entered is fed into the vehicle air condition-
ing system along with the refrigerant.
i
EV9 opens and the UV contrast medium (11) is fed
into the vehicle air conditioning system with the
refrigerant.
EV5
EV3
EV6
3 F1
C
P2
HP
5
VU2
6
F2
9
4
EV7
10
7
V1
8
V3 V2 V4
V6 V5
M1
M3
EV10
P
M2
HIGH
LOW
P1
T1
T2
2
EV1
11
VU3 VU1
12
1
EV8 EV9
13
active
Name 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 scales
9 Used oil bottle
10 Heat exchanger
11 UV dye bottle
12 Fresh oil scales
13 Used oil scales
EV1 Vacuum solenoid valve
EV3 Flow solenoid valve
Name Description
EV5 Recovery solenoid valve
EV6 Filling solenoid valve
EV7 Oil drain solenoid valve
EV8 Oil injection solenoid valve
EV9 Contrast medium injection sole-
noid valve
EV10 Solenoid valve for separating
high and low pressure
F1 Coarse filter
F2 Combi filter
HP High pressure
LP Low pressure
M1 Low pressure gage
M2 High pressure gage
M3 Internal refrigerant cylinder pres-
sure gage
Name Description
P1 Pressure sensor
P2 Pressure switch
T1 Low pressure hose
T2 High pressure hose
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
VU1 Oil non-return valve
VU2 One-way valve
VU3 UV contrast medium non-return
valve