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Air-Cooled Models—Self-Contained Compressor
27 Liebert
®
Challenger 3000
™
Table 5 Recommended line sizes — OD copper, inches *
Equivalent Length
3.5-ton 042A (040A) 5-ton 067A (065A)
Hot Gas Line Liquid Line Hot Gas Line Liquid Line
50 ft. (15 m) 5/8 1/2 7/8 1/2
100 ft. (30 m) 3/4 1/2 7/8 5/8
150 ft. (45 m) 3/4 5/8 7/8 5/8
*Recommended vertical line sizes must be used for proper oil return at all cooling and dehumidification steps.
Table 6 Equivalent lengths (feet) for various pipe fittings
Copper Pipe
O.D. 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.
Table 7 Indoor unit refrigerant charge
Model
R407C
Approximate Charge
lb (kg)
42A/40A 0.9 (0.4)
67A/65A 1.4 (0.6)
Table 8 Line charges - refrigerant per 100 ft. (30 m) of Type “L” copper tube
O.D.
R407C
Liquid Line
lb (kg)
Hot Gas Line
lb (kg)
1/2" 7.3 (3.3) 1.3 (0.6)
5/8" 11.7 (5.3) 2.1 (1.0)
3/4" 16.6 (7.5) 3.0 (1.4)
7/8" 24.4 (11.1) 4.4 (2.0)
Table 9 Condenser refrigerant (per serial tag)
Model
R407C
Approximate Charge
lb (kg)
Fan Speed
Liebert
Lee-Temp
™
*
083 5 (2.3) 26 (11.8)
104 8 (3.6) 37 (16.8)
165 15 (6.8) 50 (22.7)
* Charge includes the receiver charge.