Emerson ITR Manuel D’Utilisation

System Data

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)

4.8

Steam Generating Humidifier - Optional

Capacity, kg/hr (lb/hr)

5 (11)

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

(ft

)

2.2 (24.1)

Water Regulating Valve

Size, in

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

Condensate Drain Line

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.