Installation Polycold Cryochiller
Install the Refrigerant Lines Installation and Operation Manual
Brooks Automation
4-20 214072 Revision B
Guidelines for Refrigerant Lines
• Improper connection of the couplings is a common source of leaks. Internal leaks can damage
the equipment.
• Use a new O-ring or gasket each time the coupling is assembled.
• Do not use grease when assembling the couplings. Grease can contaminate the cryopump and
can mask a leak during the leak-checking procedures. Additionally, the coupling will leak when
the grease gets brittle at cryogenic temperatures.
• Do not scratch or dent the sealing surfaces of the couplings.
• Always use the O-ring removal tool to remove an O-ring from the Parker UltraSeal compatible
couplings. See Appendix G: Zero Line Loss Procedure on page 12-13.
Item Description
Electrical Category Type 1 – Equipment is fully de-energized
Tools Torque wrench (optional)
For Parker UltraSeal
Style Couplings
(Standard)
Silver-plated stainless steel O-rings
1 inch open end wrench
15/16 inch open end wrench
For Cajon VCR
Style Couplings
(Optional)
Silver-plated stainless steel gaskets or unplated nickel gaskets
1-3/16 inch open end wrench
1-1/16 inch open end wrench
NOTICE
Use of unauthorized or non-standard couplings voids your warranty.
Improper use of, incorrect installation of, over-tightening of, or use of damaged
O-rings in couplings will void your warranty.
NOTICE
O-ring removal tool requires lubrication.
Always clean couplings after using the lubricated tool.
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