Emerson Liebert CRV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 C R 0 2 0 R A 1 C 7 S D 1 8 1 1 E L 1 0 P A - Manual (Page 30)

Refrigerant Connections
Liebert ® CRV ™ 22
Table 9 Piping and refrigerant sizes for Liebert air-cooled, VFD control condensers with R-410A
Condenser Piping Connection Sizes, Cu, O.D.
Condenser Model #
Entering Hot Gas
Line, in. (mm)
Returning Liquid
Line, in. (mm)
TCSV28K 1-1/8 (28.6) 7/8 (22.2)
TCSV60K 1-1/8 (28.6) 7/8 (22.2)
TCSV90K 1-1/8 (28.6) 7/8 (22.2)
Source: DPN001624, Rev. 5, Page 3
Table 10 Recommended refrigerant line sizes for Liebert air-cooled, VFD control condensers
with R-410A, Cu, OD
Liebert CRV Model #
Total Equivalent
Length, ft. (m)
Hot Gas Line,
in. (m)
Liquid Line,
in. (m)
CR020RA
50 (15.2) 3/4 (19.1) 5/8 (15.9)
100 (30.5) 3/4 (19.1) 5/8 (15.9)
150 (45.7) 3/4 (19.1) 5/8 (15.9)
300 (91.4) 7/8 (22.2) 2 3/4 (19.1)
CR035RA
50 (15.2) 7/8 (22.2) 3/4 (19.1)
100 (30.5) 7/8 (22.2) 3/4 (19.1)
150 (45.7) 7/8 (22.2) 3/4 (19.1)
300 (91.4) 1-1/8 (28.6) 2 7/8 (22.2)
1. Consult factory for proper line sizing for runs longer than 300 ft. (91.4m) equivalent length.
2. Must downsize vertical riser one trade size (1-1/8" to 7/8" or 7/8" to 3/4" ).
Source: DPN001624, Rev. 5, Page 3