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Table 7 Liebert Challenger ITR water cooled data, 60 Hz (continued)
System Type Self-Contained Split Systems
Indoor Unit BR 071WG BR 060E
Infrared Humidifier - Standard
Capacity, lb/hr (kg/hr) 11 (5) 11 (5)
kW 4.8 4.8
Steam Generating Humidifier - Optional
Capacity, lb/hr (kg/hr) 11 (5) 11 (5)
kW 3.9 3.9
Filter Section - Efficiencies per ASHRAE 52.1 - Disposable Type
20% efficiencies available in 2" (51mm) - Standard, or optional 4" (102mm) depths; other optional 4" (102mm) efficiencies
are: 30%, 40-45%, 60-65%
Nominal Size, in. (mm)
28.5 x 29.5
(724 x 749)
28.5 x 29.5
(724 x 749)
Effective Surface Area, ft
2
(m
2
) 24.1 (2.2) 24.1 (2.2)
Water Regulating Valve
Size, in. 1 1
Water Requirements (Coaxial Condenser) MC_69W
THR - BTU/H (kW) @ 75°F (22.2°C), 50% RH 82,000 (24.0) 81100 (23.8)
65°F (18.3°C) EWT - 105°F (40.6°C) Cond Temp
Flow Rate, GPM (l/s) 5.4 (.34) 5.4 (.34)
Pressure Drop, PSI (kPa) 0.9 (6.2) 1.2 (8.1)
75°F (23.9°C) EWT - 105°F (40.6°C) Cond Temp
Flow Rate, GPM (l/s) 7.7 (.49) 7.6 (.48)
Pressure Drop, PSI (kPa) 1.6 (11.0) 2.2 (15.2)
85°F (29.4°C) EWT - 115°F (46.1°C) Cond Temp
Flow Rate, GPM (l/s) 9.9 (.62) 9.7 (.61)
Pressure Drop, PSI (kPa) 2.5 (17.2) 3.5 (24.2)
Connection Sizes Challenger ITR Unit
Condenser Supply 1-1/8 OD Cu
Condenser Return 1-1/8 OD Cu
Liquid Line 1/2 OD Cu
Suction Line 1 1/8 CD Cu
Humidifier Supply Line 1/4 OD Cu 1/4 OD Cu
Condensate Drain Line 1/2 FPT 1/2 FPT
Connection Sizes Remote Condensing Unit
Condenser Supply 1-1/8 OD Cu
Condenser Return 1-1/8 OD Cu
Liquid Line 1/2 OD Cu
Suction Line 1-1/8 OD Cu
Self-contained unit pressure drops based on two-way valve with bypass. Split system unit pressure drops based on two-way or three-way
valve.