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Table 9 Liebert Challenger ITR water cooled data, 50 Hz (continued)
System Type Self-Contained Split Systems
Indoor Unit BR 070WG BR 059E
Infrared Humidifier - Standard
Capacity - kg/hr (lb/hr) 5 (11) 5 (11)
kW 4.8 4.8
Steam Generating Humidifier - Optional
Capacity, kg/hr (lb/hr) 5 (11) 5 (11)
kW 3.9 3.9
Filter Section - Efficiencies per ASHRAE 52.1 - Disposable Type
20% efficiencies available in 51mm (2") - Standard, or optional 102mm (4") depths; other optional 102mm (4") efficiencies
are: 30%, 40-45%, 60-65%
Nominal Size, mm (in.)
724 x 749
(28.5 x 29.5)
724 x 749
(28.5 x 29.5)
Effective Surface Area, m
2
(ft
2
) 2.2 (24.1) 2.2 (24.1)
Water Regulating Valve
Size, in 1 1
Water Requirements (Coaxial Condenser) MC_68W
THR - kW (BTU/H) @ 22.2°C (75°F), 50% RH 23.8 (81,200) 23.2 (79,200)
18.3°C (65°F) EWT - 40.6°C (105°F) Cond Temp
Flow Rate, l/s (GPM) .34 (5.4) .33 (5.2)
Pressure Drop, kPa (PSI) 5.7 (0.8) 7.8 (1.1)
23.9°C(75°F) EWT - 40.6°C (105°F) Cond Temp
Flow Rate, l/s (GPM) .48 (7.6) .47 (7.4)
Pressure Drop, kPa (PSI) 10.7 (1.6) 14.3 (2.1)
29.4°C (85°F) EWT - 46.1°C (115°F) Cond Temp
Flow Rate, l/s (GPM) .61 (9.7) .59 (9.4)
Pressure Drop, kPa (PSI) 16.7 (2.4) 22.7 (3.3)
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 CD 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.