Flow Diagrams; Tank Fill - Bosch ACS 561 Repair Instructions

ACS 561 Service Manual

TANK FILL

Accumulator
Transducer
Heat Exchanger/
System Oil
Separator
Oil Drain
Solenoid
(S6)
Service
Port
FRONT PANEL
MANIFOLD
HOSE FLUSH
Hose Flush
MANIFOLD
Check
Valve
TANK FILL
During the tank fill process, the source tank is connected to the low-side service hose and the Recover solenoid S1
is activated. The low-side ball valve is opened and the recover solenoid is cycled to maintain 2.4 bar (35psi) in the
accumulator. When the ISV reaches the target weight, the recover solenoid closes. The low-side ball valve is closed
and the low-side service hose is removed from the source tank.
Robert Bosch GmbH

FLOW DIAGRAMS

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 4-6. Tank Fill Diagram
Plumbing and Mechanical
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
73
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
SP00D00517 2018-07-11