ACS 653, ACS 663 Service Manual
SP00D00624 2021-04-08Robert Bosch GmbH
101
Plumbing and Mechanical
When the recover or tank fill function is selected, the machine will check pressures on the service hoses.
Once pressure is veried the machine will initiate identication of the refrigerant. The low side identier solenoid
(S17) will open intermittently, allowing refrigerant to ow to the refrigerant identier, through the 0.028-inch internal
diameter orice. After analyzing the refrigerant, the identier will either send a “PASS” message to the control board
to begin the recovery process, or a “FAIL” message will display. If the refrigerant fails to pass the ID test, the machine
will print the results, and ask if you want to repeat the ID test. If the refrigerant ID test, fails, the test will automatically
repeat at least two more times.
Low Side
Service Hose
Vacuum Pump
Compressor
Oil 1 Inject
Bottle
Oil Drain
Bottle
High Side
Service Hose
Injection
Manifold
Accumulator
Transducer
Deep Recover
Solenoid
HS
Gauge
Vacuum Pump
Exhaust
Filter/Drier
High Pressure
Cutout Swtich
Main Manifold
Pump Exhaust
Check Valve
Oil Return
Solenoid
LS Charge
Solenoid
LS Charge
Check Valve
HS Charge
Solenoid
HS Charge
Check Valve
Recycle
Solenoid
Recover Chec k
Valve
Recover
Solenoid
Heat Exchanger /
System Oil
Separator
Compressor Oil
Separator
LS Inlet
Solenoid
HS Inlet
Solenoid
Vacuum
Solenoid
Oil Inject 1
Solenoid
Oil Inject 1
Check Valve
Oil Drain
Solenoid
Service Port
ID Orifice
Refrigerant
Identifier
RI Filter
Oil Inject 2
Solenoid
Oil Inject 2
Check Valve
Dye Inject
Solenoid
Dye Inject
Check Valve
Oil 2 Inject
Bottle
Dye Inject
Bottle
LS
Gauge
ID Solenoid
Low Side
Transducer
Air Purge
Solenoid
Temp.
Sensor
Air
Diffuser
Contamination
Port
Vapor
Liquid
Internal
Tank
Tank Liquid
Solenoid
Pressure
Relief
ISV Pressure
Transducer
Vapor
Check Valve
Low Side
Storage Port
High Side
Storage Port
Flush Manifold
RI variants only
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