Polycold Cryochiller
Installation
Installation and Operation Manual
Install the Cryosurface
Brooks Automation
214072 Revision B
4-17
Install the Cryosurface
This section describes how to install the cryocoil or cryobaffle, and refrigerant lines. If these items are
not already selected, then follow the recommendations below.
•
Refer to
Cryocoils and Refrigerant Lines on page 3-10
for
cryosurface information.
•
Refer to
Appendix F: Feedthroughs on page 12-10
for feedthrough selection information.
•
Contact Brooks Automation Polycold Systems for more information.
NOTE:
This task assumes that both a cryosurface and a standard 50mm (2-inch) feed-through
from Brooks Automation Polycold Systems are being installed.
If a cryobaffle or cryocoil and feed-through has been custom-fabricated by a source other
than Brooks Polycold, verify that the part meets the specifications in the section Specifica-
tions and Site Requirements,
Cryocoils and Refrigerant Lines on page 3-10
.
The feed-through on the Brooks Polycold Systems Cryocoil is designed to be installed from the inside
of a vacuum chamber. This allows removal of the cryosurface when cleaning or servicing the vacuum
chamber.
Install the Feed-Through and Cryocoil
1.
Inspect the feed-through port thickness, hole diameter, and sealing surface. Ensure
that the feed-through port is compatible with the feed-through.
2.
Clean the inner and outer surfaces of the feed-through port on the vacuum chamber wall where the
cryosurface feed-through is to be installed.
Item Description
Electrical Category
Type 1 – Equipment is fully de-energized
Tools
2.5 inch Spanner wrench, p/n 810030-07, for the nut on
feedthrough connection
Materials
High-vacuum grease - must have an appropriate low vapor
pressure (for optional use on the feed-through's)
O-ring, as required
High Working Pressure
The refrigeration unit's working pressure may exceed the cryosur-
face's working pressure which may damage the vacuum system
components and may result in equipment damage and personal
injury.
•
Do not use reservoir type cryosurfaces.
•
Do not connect the refrigeration unit to a cryosurface without first
verifying that the cryosurface meets specifications.
