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Polycold Cryochiller
Appendices
Installation and Operation Manual
Procedure
Brooks Automation
214072 Revision B
12-15
7.
For Service Bypass Line
Connect the 1/4” service line from the pressure gauge end of the service bypass line to the evacua-
tion port in the valve box for the circuit to be evacuated.
8.
For Three Port Refrigeration Manifold
Connect the 1/4” service line from the high pressure port to the evacuation port in the valve box for
the circuit to be evacuated.
If evacuating a dual circuit unit, connect to both ports using a “T” fitting.
Step
Action
Hand Valve
1/4” Line
1/4” Line
Pressure Gauge
High Pressure
Gauge
High Pressure
Hand Valve
High Pressure
Port
1/4” Line
Low Pressure
Gauge
Low Pressure
Hand Valve
Low Pressure
Port
1/4” Line