Vacuum - Bosch ACS 561 Repair Instructions

Plumbing and Mechanical

VACUUM

Accumulator
Transducer
Heat Exchanger/
System Oil
Separator
Oil Drain
Solenoid
(S6)
Service
Port
FRONT PANEL
MANIFOLD
HOSE FLUSH
Hose Flush
MANIFOLD
Check
Valve
VACUUM PROCESS
The default vacuum time is 10:00 minutes. When the vacuum process begins, the vacuum pump is activated. After
a 5 second delay, the vacuum solenoid activates. The HS and LS valves must be open. A timer will start when once
the vacuum transducer reading reaches 5 mBar.
SP00D00517 2018-07-11
High Pressure
Filter/Dryer
Compressor
(COMP)
Oil Return
Solenoid
(S7)
Vacuum Pump
(PUMP)
Oil Drain
Bottle
Low Side
Transducer
Recover
Recover
Solenoid
Check
(S1)
Valve
High Side
Gauge
Oil Inject
Solenoid (S5)
Oil Inject
Check Valve
Oil Inject
Bottle
High Side
Service Hose
Figure 4-9. Vacuum
Pressure Relief
Switch
Compressor
Oil Separator
Tank Liquid
Solenoid
(S4)
Vacuum
Solenoid
(S2)
High Side
Low Side
Ball Valve Ball Valve
Low Side
Gauge
BULKHEAD
INJECTION
MANIFOLD
HS LS
Bulkhead Bulkhead
Service Hose
76
ACS 561 Service Manual
Air Purge
Pressure Relief
Vapor
Check
Valve
Liquid
Ball
Valve
Internal
Storage
Vessel
Charge
Solenoid
(S3)
Charge Check
Valve
Suction
Discharge
Intermittent
Energized
Tank
Pressure
Low Side
Robert Bosch GmbH