Installation
Polycold Cryochiller
Insulate Exposed Refrigerant Tubes and Couplings
Installation and Operation Manual
Brooks Automation
4-42
214072 Revision B
Insulate exposed tubes between the refrigeration unit and the refrigerant line insulation:
Refer to
,
, and
1.
Cut the tubes of insulation so that they will fit snugly between the refrigeration unit and
the refrigerant line's insulation. Cut each tube of insulation lengthwise.
2.
Fit a smaller diameter tube of insulation around each exposed tube. Apply adhesive to the length-
wise slits in the insulation. Close the lengthwise slits to form an air-tight seal.
3.
Fit the larger diameter tubes of insulation around the smaller diameter tubes of insulation. Seal
each lengthwise slit shut with adhesive. (It is best to stagger the lengthwise seams.)
4.
Cover the insulated refrigerant line bundle with a spiral wrap of Armaflex Insulation Tape. Overlap
the previous wrap of insulation tape by at least 1 inch to ensure there are no gaps.
Alternately, cut sheet insulation the same length as the tubes of insulation and wrap the sheet once
Item Description
Electrical Category
Type 1 – Equipment is fully de-energized
Tools
Large pair of scissors or knife
Materials:
Insulation materials shipped with unit
•
Tubes of closed-cell pipe insulation
•
Sheet of closed-cell pipe insulation
•
Armaflex Insulation Tape
•
Armstrong 520 adhesive - See warning below
Flammable Materials and Chemicals
Fumes from the adhesive Armstrong 520 are a source of ignition
and suffocation and may cause fire and serious injury or death.
•
Make sure there is adequate ventilation and no ignition source
when using the Armstrong 520 adhesive.
•
Read the label and follow the instructions on the container.
NOTICE
Armaflex tape is extremely difficult to remove and makes the feed-through nut
bind when unscrewed and may result in damage to the equipment.
•
Do not get Armaflex tape or Armstrong 520 adhesive in the threads of the
feed-through.
