Specifications

! CAUTION

Do not add excess oil. It is especially important on the

06E and 06CC (50 to 99 Cfm) compressors that excess oil

not be added to the system. Laboratory tests and field

experience indicate excessive oil levels can cause blown

valve plate and cylinder head gaskets, increase compres-

sor operating temperatures, and cause oil equalization

problems.

NOTE: All 06D compressors and 06CC (16 to 37 Cfm)

compressors have one sight glass on the side of the

crankcase. All 06E compressors and 06CC (50 to

99 Cfm) compressors have two sight glasses, on the oil

pump end of the compressor.

Parallel compressor applications typically use an oil-

control float system consisting of individual floats, a

separator and an oil reservoir. When using a float

system,

do not interconnect the floats with an “equaliza-

tion system” without approval from Carlyle application

engineering. The use of a float “equalization system” can

result in system oil control problems.

An oil equalization line can be used instead of a float

system, except with 06CC compressors. The equaliza-

tion line and the compressors must be level, and the line

diameter must be large enough to allow both the refriger-

ant and oil to equalize between all the interconnected

compressors. If the line is not level, it is undersized or

the system contains too much oil, the oil level will rise

filling the line, and oil control between compressors will

be lost. Typically, equalization lines are 1 1/8 in.

(28 mm) in diameter or larger. For 06D compressors, a

sight glass in the line is required to determine the system

oil level.

Parallel systems using three (3) or more 06E compressors

require the use of a common motor barrel interconnec-

tion line between compressors. Use of an interconnec-

tion line is strongly recommended on two (2) 06E

CAUTION