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1.1 Refrigerants and Lubricants
Approved Refrigerants
The Paragon medium-temperature screw compressor is
specifically designed for use in R-134a systems.
Approved Lubricants
The Paragon screw compressor is approved for use with
the following lubricants:
Approved Lubricant — Emkarate RL 220H
Viscosity Grade — ISO 220
or
Approved Lubricant — Emkarate RL 220HC
Viscosity Grade — ISO 220
Carrier Part Number — 1 gallon: P903-2301
5 gallon: P903-2305
Assembly Grease
On occasion, it may be necessary to use an assembly
grease to retain an o-ring within its groove. The follo
wing
assembly grease is approved for use with the Paragon
screw compressor:
Approved Lubricant — Castrol Synplex GP2
or
Approved Lubricant — Parker Super-O-Lube
Carrier Part Number — 19XL680001
Terminal Pin Dielectric Grease
Carlyle recommends that compressor motor terminal
pins are coated with dielectric grease (P/N 06TT660050)
to reduce the effects of condensation that may form on
the terminal pins.
1.2 Environmental Considerations
Operating Ambient Temperature
The screw compressor is designed for the following ambi-
ent temperature ranges:
Non-Operating: -40°F to 176°F (-40°C to 80°C)
Operating: -31°F to 131°F (-35°C to 55°C)
Salt-Spray Requirements
The compressor has been tested through 500 hours of
salt-spray in compliance with ASTM specification B-117.
1.3 Operating Limits and Controls
R-134a, R-513A, R-1234ze Operating Envelope
The following operating envelopes show where the com-
pressor can be operated in both direct expansion and
flooded applications. See Fig. 5-
7. The envelopes differ
for the unique design configuration of the compressor.
The fifth digit of the model number indicates the operat-
ing envelope. The load line percentages refer to the
capacity relative to full load at the same saturated suction
temperature (SST) and saturated discharge temperature
(SDT).
1.0 Medium/High Temperature System Design
Considerations (R-134a, R-513A, R-1234ze)
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