Installation Polycold Cryochiller
Install the Refrigerant Lines Installation and Operation Manual
Brooks Automation
4-24 214072 Revision B
11. Save the blank-off fittings and store them with the
unit for reinstallation if the refrigerant lines are dis-
connected.
12. Bend the refrigerant line so that the couplings are
even when they get to the mating couplings on the
refrigeration unit. Commonly, the feed and return
lines should have the same bend radius.
13. Loosely fasten all couplings on the refrigerant line.
14. Check the line for stress or misalignment between
couplings.
Resolve line stress or misalignment before going
to the next step.
15. Go to the installation procedures for either the
Parker UltaSeal or Cajon VCR couplings.
Install Parker UltraSeal Compatible Couplings (Standard Fitting)
1. Insert a new O-ring into the male coupling's groove
2. Place the gland against the O-ring and male coupling. Make certain the O-ring does not drop out of
the groove
3. Slide the nut forward and finger-tighten the coupling.
4. Use two wrenches to tighten the coupling. Keep the male coupling stationary with the 15/16-inch
wrench and tighten the nut with the 1-inch wrench. Each wrench must have a length of at least 12
inches (300 mm).
Figure 4-17: Blank off Fittings
Figure 4-18: Parker Ultra Seal compatible Coupling (standard coupling)
Female Nut
Gland
Sealing Surfaces
Male Coupling
Silver Plated Stainless Steel O-ring
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