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Split System Models
Liebert
®
Challenger 3000
™
60
Figure 31 Refrigerant piping diagram
Table 22 Line charges - refrigerant per 100 ft. (30 m) of Type “L” copper tube
O.D.
R407C
Liquid Line
lb (kg)
Suction Line
lb (kg)
1/2" 7.3 (3.3) -
5/8" 11.7 (5.3) 0.4 (0.2)
7/8" 24.4 (11.1) 1.0 (0.4)
1-1/8" 41.6 (18.9) 1.7 (0.7)
1-3/8" 63.3 (28.7) 2.7 (1.1)
Table 23 Recommended refrigerant lines (R407C) sizes OD copper
Equivalent Feet (m)
3.5-Ton
036E (035E)
5-Ton
060E (059E)
Suction Liquid Suction Liquid
0-50 (0-15) 7/8" 1/2" 1-1/8" 1/2"
51-100 (16-30) 1-1/8" 1/2" 1-1/8" 5/8"
101-150 (31-45) 1-1/8" 5/8" 1-3/8" 5/8"
Table 24 Line coupling sizes
Model
(Tons)
Line Size
OD Cu, in.
Coupling
Size
Torque
lb-ft.
33/8 #610-12
5 1/2 & 5/8 #10 35-45
3 7/8 #11 35-45
5 1-1/8 #12 50-65
Table 25 Equivalent lengths (feet) for various pipe fittings
Copper Pipe
OD in.
90 Degree
Elbow Copper
90 Degree
Elbow Cast
45 Degree
Elbow Tee
Gate
Valve
Globe
Valve
Angle
Valve
1/2 0.8 1.3 0.4 2.5 0.26 7.0 4.0
5/8 0.9 1.4 0.5 2.5 0.28 9.5 5.0
3/4 1.0 1.5 0.6 2.5 0.3 12.0 6.5
7/8 1.45 1.8 0.8 3.6 0.36 17.2 9.5
1-1/8 1.85 2.2 1.0 4.6 0.48 22.5 12.0
1-3/8 2.4 2.9 1.3 6.4 0.65 32.0 16.0
1-5/8 2.9 3.5 1.6 7.2 0.72 36.0 19.5
Refrigerant trap = 4 times equivalent length of pipe per this table
Evaporator
Condensing unit
Suction Line Piping
Condensing unit
above evaporator
Traps recommended at the base of riser and
every 25 feet (7.6m) of vertical rise.