Installation Polycold Cryochiller
Evacuate the Refrigerant Line and Cryosurface Installation and Operation Manual
Brooks Automation
4-32 214072 Revision B
Evacuate the Refrigerant Line and Cryosurface
1. Connect the vacuum pump, vacuum gauge, and service manifold. See Figure 4-24.
Item Description
Electrical Category Type 1 – Equipment is fully de-energized
Tools Vacuum pump with a 1/4-inch SAE male flare connection that is capa-
ble of pumping down to at least 0.05 torr (6.5 Pa)
Thermistor or thermocouple type vacuum gauge (Granville-Phillips
Convectron works well for this purpose)
Service manifold gauge set with hoses (manifold)
1/4 inch ratchet valve wrench
7/16 inch open-end wrench
9/16 inch open-end wrench (important)
5/8 inch open-end wrench
15/16 inch open-end wrench
Adjustable wrenches as required
Coil Magnets (3) for single circuit, (6) for dual circuit
Materials Cylinder of dry nitrogen gas with a regulator
Chemical Hazard
Failure to have a qualified refrigeration technician do all refrigera-
tion work could result in personal injury or system damage.
• Have a qualified refrigeration technician do all refrigerant work.
Figure 4-24: Cold Valve Box Setup to Evacuate Refrigerant Line and Cryosurface
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