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Table 13 Liebert Challenger ITR glycol cooled data, 50 Hz (continued)
System Type
Glycol Cooled GLYCOOL
Self-Contained Split Systems Self-Contained
Indoor Unit BR 070WG BR 059E BM 058G
Infrared Humidifier - Standard
Capacity, kg/hr (lb/hr) 5 (11) 5 (11) 5 (11)
kW 4.8 4.8 4.8
Steam Generating Humidifier - Optional
Capacity, kg/hr (lb/hr) 5 (11) 5 (11) 5 (11)
kW 3.9 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)
724 x 749
(28.5 x 29.5)
Effective Surface Area, m
2
(ft
2
) 2.2 (24.1) 2.2 (24.1) 2.2 (24.1)
Glycol Regulating Valve
Size, in111
Econ-O-Valve
Size, in - - 1
Cv - - 13.9
System Data* MC_68WG
Flow Rate, l/s (GPM) 1.1 (17.5) 1.3 (20) 1.1 (17.5)
Unit Volume, liters (gallons) 7.5 (2.0) 7.5 (2.0) 15.0 (4.0)
Pressure Drop, kPa (ft.) 56.4 (18.9) 111.9 (37.5) 152.5 (51.1)
Connection Sizes Challenger ITR Unit
Condenser Supply 1-1/8 OD Cu 1-1/8 OD Cu
Condenser Return 1-1/8 OD Cu 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 1/4 OD Cu
Condensate Drain Line 1/2 FPT 1/2 FPT 1/2 FPT
Connection Sizes 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
Drycooler 35°C (95°F) Ambient*
Model Number DSF112-3PH DSF174-3PH DSF112-3PH
Drycooler Connections 2 2 2
Volume, liters (gallons) 5.8 (22.0) 6.9 (26.2) 5.8 (22.0)
Pressure Drop, kPa (ft.) 7.2 (2.4) 9.2 (3.1) 7.2 (2.4)
Fan, kW (hp) .56 (3/4) .56 (3/4) .56 (3/4)
Glycol Pump - 3-Phase kW (hp) 1.1 (1.5) 1.1 (1.5) 1.1 (1.5)
Head, kPa (ft.) 262.6 (88.0) 262.6 (88.0) 262.6 (88.0)
Pump Suction and Discharge NPT, female 1-1/4 & 3/4 1-1/4 & 3/4 1-1/4 & 3/4
* All data above is based on 40% ethylene glycol solution.