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Table 11 Liebert Challenger ITR glycol cooled data, 60 Hz (continued)
System Type
Glycol Cooled GLYCOOL
Self-Contained Split Systems Self-Contained
Indoor Unit
BR 071WG BR 060E BM 061G
Infrared Humidifier - Standard
Capacity, lb/hr (kg/hr) 11 (5) 11 (5) 11 (5)
kW 4.8 4.8 4.8
Steam Generating Humidifier - Optional
Capacity, lb/hr (kg/hr) 11 (5) 11 (5) 11 (5)
kW 3.9 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, inches (mm)
28.5 x 29.5
(724 x 749)
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) 24.1 (2.2)
Glycol Regulating Valve
Size, in111
Econ-O-Valve
Size, in — — 1
Cv — — 13.9
System Data* MC_*69WG
Flow Rate, GPM (l/s) 17.5 (1.1) 20 (1.3) 17.5 (1.1)
Unit Volume, gal (l) 2.0 (7.5) 2.0 (7.5) 4.0 (15.0)
Pressure Drop, ft. (kPa) 18.9 (56.4) 37.5 (111.9) 51.1 (152.5)
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 OD 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 OD Cu
Drycooler 95°F (35°C) Ambient*
Model Number DSF112-3PH DSO174-3PH DSO112-3PH
Drycooler Connections 2 2 2
Volume, gal. (l) 5.8 (22.0) 6.9 (26.2) 5.8 (22.0)
Pressure Drop, ft. (kPa) 2.4 (7.2) 3.1 (9.2) 2.4 (7.2)
Fan, hp (kW) 3/4 (.56) 3/4 (.56) 3/4 (.56)
Glycol Pump, 3-phase hp (kW) 3/4 (.56) 3/4 (.56) 1.5 (1.1)
Head, ft. (kPa) 69 (205.9) 69 (205.9) 88 (262.6)
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.