CCA-410-IM (03/15) Page 9
Refrigeration
Line Set
Line set sizes for CCA Series Cased Coils connecting to the matching compressor units are listed in
Figure 5. Line set liquid and vapor lines are to be insulated with Armaflex®, Insul-Lock®or equivalent
tubing insulation at least ½” wall thickness. For interior living areas, thicker walled insulation will reduce
sound level.
LINE SET ADAPTERS REQUIRED FOR THE AIR HANDLER, CASED COIL, HYDRONIC WATER
MODULE AND DOMESTIC WATER MODULE ARE FIELD SUPPLIED. CHECK ALL
APPROPRIATE COMPRESSOR UNIT STUB-OUT TUBING SIZES FOR REQUIRED FIELD
SUPPLIED ADAPTERS!
EARTHLOOP, AIR HANDLER, CASED COIL LINE SETS HWM/DWM LINE SETS
COMPRESSOR
UNIT SIZE
LINE SET O.D., INCHES HWM
MODEL
LINE SET O.D., INCHES
LIQUID* VAPOR* LIQUID* VAPOR*
1.5 Tons (-018) 3/8 5/8 -018C/-1836 3/8 1/2
2.0 Tons (-024) 3/8 5/8 -024C/-1836 3/8 1/2
2.5 Tons (-030) 3/8 3/4 -030C/-1836 3/8 1/2
3.0 Tons (-036) 1/2 3/4 -036C/-1836 3/8 1/2
3.5 Tons (-042) 1/2 3/4 -042C/-4248 1/2 5/8
4.0 Tons (-048) 1/2 7/8 -048C/-4248 1/2 5/8
4.5 Tons (-054) 1/2 7/8 -054C/-5472 1/2 3/4
5.0 Tons (-060) 1/2 7/8 -060C/-5472 1/2 3/4
*Liquid and Vapor lines must BOTH be insulated with Armaflex® or equivalent with at least 1/2” wall thickness for
the full length of the line set.
Figure 5. Line Set Sizes
Both liquid and vapor lines running between the compressor unit and the cased coil must be separated
by an air space, as illustrated in Figure 6, to ensure system performance. The lines shall not be
“bundled” by tying them together or by running both lines together, in contact with one another, within a
single conduit, such as PVC pipe.
