Emerson ITR Manuel D’Utilisation
System Data
37
Table 15
Liebert Challenger ITR chilled water data, 50 Hz
Capacity Data kW (BTU/H) @ 7.2°C (45°F ) EWT, 5.6°C (10°F) Water Rise; Net Capacity Data
Indoor Unit
Indoor Unit
BR = Horizontal Flow
BR 101C
Indoor Unit
BR 101C
37.8ºC DB, 21.1ºC WB (100ºF DB, 70ºF WB) 20% RH, 6.7°C (12°F)
Water Rise
Fan Data (Blower A12x9AT)**
Total
kW (BTU/H)
34.0
116,000
Standard Air, CMH (CFM)
4420 (2600)
Sensible
kW (BTU/H)
31.9
109,000
Standard Fan Motor, kW (hp)
1.1 (1-1/2)
Flow Rate
l/s (GPM)
1.3
19.9
Opt Fan Motor, kW (hp)
1.5 (2)
Pressure Drop
kPa (ft)
66.5
22.3
Ext Static, Pa (in. WG)
75 (.3)
35ºC DB, 20.2ºC WB (95ºF DB, 68.3ºF WB) 24% RH,
6.1°C (11°F) Water Rise
Chilled Water Coil (V-Frame, at standard conditions)
Total
kW (BTU/H)
31.1
106,000
Face Area, m
2
(ft
2
)
.62 (6.67)
Sensible
kW (BTU/H)
29.0
99,100
Rows
4
Flow Rate
l/s (GPM)
1.3
19.9
Face Velocity, m/s (FPM)
1.9 (375)
Pressure Drop
kPa (ft)
66.5
22.3
Electric Reheat 2-Stage (Stainless Steel, Fin Tubular) - Std
32.2ºC DB, 19.2ºC WB (90ºF DB, 66.5ºF WB) 28% RH
Capacity, element kW (inc. motor heat, BTU/H)
15 (56,200)
Total
kW (BTU/H)
28.2
96,100
Hot Water Reheat 82.2°C (180°F) EWT, 23.9°C (75°F) EAT -
Optional (Includes std air volume and opt. fan motor hp)
Sensible
kW (BTU/H)
26.0
88,900
Flow Rate
l/s (GPM)
1.3
20.0
Capacity, inc. motor heat, kW (BTU/H)
25.3 (86,200)
Pressure Drop
kPa (ft)
66.8
22.4
Flow Rate, l/s (GPM)
.32 (5.0)
29.4ºC DB, 18ºC WB (85ºF DB, 64.4ºF WB) 32% RH
Pressure drop, kPa (ft.)
50.4 (16.9)
Total
kW (BTU/H)
24.7
84,200
Infrared Humidifier - Standard
Sensible
kW (BTU/H)
23.0
78,400
Capacity, kg/hr (lb/hr)
5 (11)
Flow Rate
l/s (GPM)
1.1
17.6
kW
4.8
Pressure Drop
kPa (ft)
52.7
17.7
Steam Generating Humidifier - Optional
26.7ºC DB, 17.1ºC WB (80ºF DB, 62.7ºF WB) 38% RH
Capacity, kg/hr (lb/hr)
5 (11)
Total
kW (BTU/H)
21.5
73,500
kW
3.9
Sensible
kW (BTU/H)
19.6
66,900
Filter Section - Efficiencies per ASHRAE 52.1 - Disposable
Type
Flow Rate
l/s (GPM)
1.0
15.8
20% Eff. available in 51mm (2") - Standard, or Optional 102mm (4")
Depths; other Optional 102mm (4") Eff. are: 30%, 40-45%, 60-65%
Pressure Drop
kPa (ft)
42.9
14.4
Nominal Size - mm
28.5 x 29.5
26.7ºC DB, 19.2ºC WB (80ºF DB, 66.5ºF WB) 50% RH
Nominal Size - inches
724 x 749
Total
kW (BTU/H)
27.5
94,000
Effective Surface Area - m
2
(ft
2
)
2.2 (24.1)
Sensible
kW (BTU/H)
19.8
67,500
Connection Sizes-Challenger ITR Unit
Flow Rate
l/s (GPM)
1.2
19.7
CW Supply
1 1/8 OD Cu
Pressure Drop
kPa (ft)
65.9
22.1
CW Return
1 1/8 OD Cu
23.9ºC DB, 16.9ºC WB (75ºF DB, 62.5ºF WB) 50% RH
Humidifier Supply
1/4 OD Cu
Total
kW (BTU/H)
20.4
69,700
Condensate Drain
1/2 FPT
Sensible
kW (BTU/H)
16.8
57,500
Control Valve
Flow Rate
l/s (GPM)
0.9
14.7
Maximum design water pressure 1034.4 kPa (150 PSI)
Pressure Drop
kPa (ft)
38.1
12.8
Valve Actuator
Modulating
23.9ºC DB, 16.2ºC WB (75ºF DB, 61.1ºF WB) 45% RH
Sensors
Proportional
Total
kW (BTU/H)
19.0
64,800
Valve Body
Three-Way
Sensible
kW (BTU/H)
17.4
59,500
Valve Size, in.
1
Flow Rate
l/s (GPM)
0.8
13.3
Cv
13.9
Pressure Drop
kPa (ft)
31.6
10.6
Two-Way Valve (Optional)
22.2ºC DB, 15.6ºC WB (72ºF DB, 60.1ºF WB) 50% RH
Close Off Pressure - kPa (PSI)
483 (70)
Total
kW (BTU/H)
16.7
57,100
* The net capacity data has fan motor heat factored in for all ratings
and the entering air condition of 72°F (22.2°C) and 50% RH is the
standard rating for ASHRAE 127-2001.All capacities are nominal
values; actual performance will be ±5%.
standard rating for ASHRAE 127-2001.All capacities are nominal
values; actual performance will be ±5%.
** Data rated with 2" 20% ASHRAE filter. Some options or
combinations of options may result in reduced airflow. Consult
factory for recommendations.
factory for recommendations.
Sensible
kW (BTU/H)
15.1
51,400
Flow Rate
l/s (GPM)
0.8
12.0
Pressure Drop
kPa (ft)
26.2
8.8
22.2ºC DB, 14.8ºC WB (72ºF DB, 58.7ºF WB) 45% RH
Total
kW (BTU/H)
15.7
53,500
Sensible
kW (BTU/H)
15.4
52,400
Flow Rate
l/s (GPM)
0.7
11.1
Pressure Drop
kPa (ft)
22.6
7.6