Emerson ITR Manuel D’Utilisation
System Data
36
Table 14
Liebert Challenger ITR chilled water data, 60 Hz
Capacity Data BTU/H (kW) @ 45°F (7.2°C) EWT, 10°F (5.6°C) Water Rise; Net Capacity Data
Indoor Unit
Indoor Unit
BR = Horizontal Flow
BR 102C
Indoor Unit
BR 102C
100ºF DB, 70ºF WB (37.8ºC DB, 21.1ºC WB) 20% RH, 12°F
(6.7°C) Water Rise
Fan Data (Blower A12x9AT)**
Total
BTU/H (kW)
125,000
36.6
Standard Air, CFM (CMH)
2800 (4760)
Sensible
BTU/H (kW)
118,000
34.6
Standard Fan Motor, hp (kW)
1-1/2 (1.1)
Flow Rate
GPM (l/s)
21.4
1.4
Opt. Fan Motor, hp (kW)
2 (1.5)
Pressure Drop
ft (kPa)
25.5
76.0
Ext Static, in. WG (Pa)
.3 (75)
95ºF DB, 68.3ºF WB (35ºC DB, 20.2ºC WB) 24% RH, 12°F
(6.7°C) Water Rise
Chilled Water Coil (V-Frame, at standard conditions)
Total
BTU/H (kW)
113,000
33.1
Face Area, ft.
2
(m
2
)
6.67 (.62)
Sensible
BTU/H (kW)
107,000
31.4
Rows
4
Flow Rate
GPM (l/s)
19.6
1.2
Face Velocity, FPM (m/s)
405 (2.1)
Pressure Drop
ft (kPa)
21.7
64.7
Electric Reheat 2 Stage (Stainless Steel, Fin Tubular) - Std
90ºF DB, 66.5ºF WB (32.2ºC DB, 19.2ºC WB) 28% RH, 12°F (6.7°C)
Water Rise
Capacity, inc. motor heat, BTU/H (element kW)
56,200 (15)
Total
BTU/H (kW)
101,000
29.6
Hot Water Reheat 180°F (82.2°C) EWT, 75°F (23.9°C) EAT -
Optional (includes std air volume and opt fan motor hp)
Sensible
BTU/H (kW)
94,700
27.7
Flow Rate
GPM (l/s)
17.4
1.1
Capacity, inc. motor heat, BTU/H (kW) 88,700 (26.0)
Pressure Drop
ft (kPa)
17.4
51.9
Flow Rate, GPM (l/s)
5.0 (.32)
85ºF DB, 64.4ºF WB (29.4ºC DB, 18ºC WB) 32% RH
Pressure drop, ft. (kPa)
16.9 (50.4)
Total
BTU/H (kW)
91,000
26.7
Infrared Humidifier - Standard
Sensible
BTU/H (kW)
85,000
24.9
Capacity, lb/hr (kg/hr)
11 (5)
Flow Rate
GPM (l/s)
18.9
1.2
kW
4.8
Pressure Drop
ft (kPa)
20.2
60.2
Steam Generating Humidifier - Optional
80ºF DB, 62.7ºF WB (26.7ºC DB, 17.1ºC WB) 38% RH
Capacity, lb/hr (kg/hr)
11 (5)
Total
BTU/H (kW)
79,000
23.1
kW
3.9
Sensible
BTU/H (kW)
72,400
21.2
Filter Section - Efficiencies per ASHRAE 52.1 - Disposable
Type
Flow Rate
GPM (l/s)
16.5
1.0
20% Eff. available in 2" (51mm) - Std, or Opt 4" (102mm) Depths;
other Optional 4" (102mm) Eff. are: 30%, 40-45%, 60-65%
Pressure Drop
ft (kPa)
15.8
47.1
Nominal Size - in (mm)
28.5 x 29.5
(724 x 749)
80ºF DB, 66.5ºF WB (26.7ºC DB, 19.2ºC WB) 50% RH
Total
BTU/H (kW)
98,200
28.8
Effective Surface Area, ft
2
(m
2
)
24.1 (2.2)
Sensible
BTU/H (kW)
71,500
20.9
Connection Sizes Challenger ITR Unit
Flow Rate
GPM (l/s)
19.7
1.2
CW Supply 1-1/8 OD Cu
Pressure Drop
ft (kPa)
22.1
65.9
CW Return 1-1/8 OD Cu
75ºF DB, 62.5ºF WB (23.9ºC DB, 16.9ºC WB) 50% RH
Humidifier Supply
1/4 OD Cu
Total
BTU/H (kW)
72,900
21.4
Condensate Drain
1/2 FPT
Sensible
BTU/H (kW)
61,000
17.9
Control Valve
Flow Rate
GPM (l/s)
14.7
0.9
Maximum design water pressure 150 psi (1034.3 kPa)
Pressure Drop
ft (kPa)
12.8
38.1
Valve Actuator
Modulating
75ºF DB, 61.1ºF WB (23.9ºC DB, 16.2ºC WB) 45% RH
Sensors
Proportional
Total
BTU/H (kW)
68,200
20.0
Valve Body
Three-Way
Sensible
BTU/H (kW)
63,100
18.5
Valve Size, inches
1
Flow Rate
GPM (l/s)
13.3
0.8
Cv
13.9
Pressure Drop
ft (kPa)
10.6
31.6
Two-Way Valve (Optional)
72ºF DB, 60.1ºF WB (22.2ºC DB, 15.6ºC WB) 50% RH
Close-Off Pressure, PSI (kPa)
70 (483)
Total
BTU/H (kW)
59,900
17.6
*
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%.
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%.
** Data rated with 2" 20% ASHRAE filter. Some options or combinations
of options may result in reduced airflow. Consult factory for
recommendations.
recommendations.
Sensible
BTU/H (kW)
54,400
15.9
Flow Rate
GPM (l/s)
12.0
0.8
Pressure Drop
ft (kPa)
8.8
26.2
72ºF DB, 58.7ºF WB (22.2ºC DB, 14.8ºC WB) 45% RH
Total
BTU/H (kW)
56,200
16.5
Sensible
BTU/H (kW)
55,300
16.2
Flow Rate
GPM (l/s)
11.1
0.7
Pressure Drop
ft (kPa)
7.6
22.6