Specifications

FOR HCFC BLENDS:

Carlyle’s engineering efforts were directed toward

testing the new HFC refrigerants, not the interim HCFC

blends. Carlyle provides tentative approvals of the

following blends based on tests by the refrigerant

manufacturer and feedback from field applications, not

on testing undertaken by Carlyle:

• For Low Temperature applications: R-402A

(HP-80) and R408A (FX10).

• For Medium Temperature applications: R-401A

(MP-39), R-402B (HP-81) and R409A (FX56).

NOTE: Carlyle compressors require alkylbenzene oil,

such as Totaline

P903-2001or Shrieve Chemical-Zerol

150, whenever an HCFC blend is used. In a retrofit

application the amount of mineral oil cannot exceed

25% when mixed with alkylbenzene. Carlyle does not

recommend the use of POE lubricants with HCFC

blends.

A number of HCFC blends are not approved.

Some may create a hazardous situation. Carlyle

requires all refrigerants used in our compressors to be

A1/A1 (low flammability/low toxicity). The rating is

based on ASHRAE 34 safety standard. Not all A1/

A1 refrigerants are approved for use in Carlyle

compressors. Some of the refrigerants or blends

available are either flammable (A1/A2 or A1/A3)

and/or toxic (A1/B1 or A1/B3). Some A1/A1

refrigerants can change ratings if contaminated. Any

replacement refrigerant must operate with the same

pressure levels and temperature ranges as the CFC or

HCFC being replaced. Do not use any refrigerant

not specifically approved in this guide unless you

have obtained approval from the Carlyle Com-

pressor engineering department.

WARNING