Emerson Liebert CW User Manual
Page 7
Liebert CW Performance Data—50 & 60 Hz Systems
3
CW026
CW038
CW041
CW051
CW060
CW076
CW084
CW106
CW114
Fan Section - Variable Pitch, Two-Belt Drive Package* (*Some options or combination of options may result in reduced air flow.
Consult factory for recommendation.)
Air Volume CFM (CMH)
5250
(8920)
6050
(10,280)
5900
(10,020)
9300
(15,800)
9100
(15,460)
12,500
(21,240)
12,100
(20,560)
17,100
(29,070)
16,500
(28,050)
Fan Motor HP (kW)
3.0 (2.2)
5.0 (3.7)
5.0 (3.7)
7.5 (5.6)
7.5 (5.6)
10 (7.5)
10 (7.5)
15 (11.2)
15 (11.2)
Ext. Static Press. in. of water (Pa)
0.2 (50)
0.2 (50)
0.2 (50)
0.2 (50)
0.2 (50)
0.2 (50)
0.2 (50)
0.2 (50)
0.2 (50)
Number of Fans
1
1
1
2
2
2
2
3
3
Chilled Water Coil
Face Area sq. ft. (m2) 11.7 (1.08)
11.7 (1.08)
11.7 (1.08)
18.5 (1.72)
18.5 (1.72)
25.0 (2.32)
25.0 (2.32)
36.28 (3.37) 36.28 (3.37)
Number of Rows
3
4
6
4
6
4
6
4
6
Face Velocity FPM (m/s)
431 (2.2)
499 (2.5)
486 (2.4)
482 (2.4)
471 (2.4)
484 (2.5)
480 (2.4)
471 (2.3)
460 (2.3)
Chilled Water Controls (Maximum design water pressure 150 PSI [1034.3 KPa]. Higher pressure available as an option. Consult factory.)
Valve Actuator Modulating
Modulating
Modulating
Modulating
Modulating
Modulating
Modulating
Modulating
Modulating
Sensors Proportional Proportional Proportional Proportional Proportional Proportional Proportional Proportional Proportional
Valve Body
3-Way
3-Way
3-Way
3-Way
3-Way
3-Way
3-Way
3-Way
3-Way
Valve Cv
11.6
11.6
28.9
28.9
46.2
46.2
46.2
46.2
46.2
Valve Size - inches
1
1-1/4
1-1/2
1-1/2
2
2
2
2
2
2-Way Valve (0ptional)
Close Off Pressures-PSI (kPa)
86 (593)
86 (593)
70 (483)
70 (483)
45 (310)
45 (310)
45 (310)
45 (310)
45 (310)
REHEAT SECTION
Electric Reheat: Three-Stage, Fin Tube
Capacity BTU/HR (kW)* 39,200 (10)
58,800 (15)
58,800 (15)
81,000 (20)
98,100 (25) 121,500 (30) 121,500 (30) 127,900 (30) 127,900 (30)
Steam Reheat: 218°F (103.3°C) Steam, 75°F (23.9°C) E.A.T., STD MTR-Modulating Control Valve 2-way****†
Capacity BTU/HR (kW)*
84,100
(24.6)
85,800
(25.1)
85,800
(25.1)
93,400
(27.4)
144,500
(42.4)
163,200
(47.8)
163,200
(47.8)
171,700
(50.3)
171,700
(50.3)
Hot Water Reheat: Capacity @ 180°F (82.2°C) E.W.T., STD MTR 75°F (23.8°C) E.A.T. - Modulating Control Valve 2-way****†
Capacity BTU/HR (kW)*
47,000
(13.7)
49,500
(14.5)
49,500
(14.5)
89,900
(26.3)
89,900
(26.3)
125,200
(36.7)
125,200
(36.7)
133,700
(39.2)
133,700
(39.2)
Flow Rate-GPM (l/s)
5 (.31)
5 (.31)
5 (.31)
8 (.50)
8 (.50)
8 (.50)
8 (.50)
8 (.50)
8 (.50)
Pressure Drop-PSI (kPa)
3.5 (24.1)
3.5 (24.1)
3.5 (24.1)
1.6 (11.0)
1.6 (11.0)
1.6 (11.0)
1.6 (11.0)
1.6 (11.0)
1.6 (11.0)
* Includes Fan Motor ** Optional 3-Way valve available-consult factory *** 25 PSI (172.4 kPa) Max operating pressure-consult factory for higher pressures.
† Unit CFM reduced by 300 with std. motor (142 l/s) **** 150 PSI (1034.3 kPA) Max operating pressure-consult factory for higher pressures.
HUMIDIFIER SECTION
Infrared Humidifier (Note: 50Hz Models are 22.1 lb/hr. (10.0 kg/h); 9.6 kW)
Capacity-lb/hr. (kg/h)
11.0 (5.0)
11 (5.0)
11.0 (5.0)
17.4 (7.9)„
17.4 (7.9)„
22.1 (10.0)
22.1 (10.0)
22.1 (10.0)
22.1 (10.0)
kW
4.8
4.8
4.8
6.4„
6.4„
9.6
9.6
9.6
9.6
Pan
Stainless
Stainless
Stainless
Stainless
Stainless
Stainless
Stainless
Stainless
Stainless
Steam Generating Humidifier (Water conductivity between 200-500 micromhos is required for ideal operation)
Capacity-lb/hr. (kg/h)
11 (5.0)
11 (5.0)
11.0 (5.0)
22 (10.0)
22 (10.0)
22 (10.0)
22 (10.0)
22 (10.0)
22 (10.0)
Capacity-kW
3.6
3.6
3.6
7.2
7.2
7.2
7.2
7.2
7.2
Steam Grid Humidifier - All Models (Standard Selection, 5 PSIG. (34.5 kPa) Steam 14 lb./hr. (6.4 kg/h)
Supply Steam Pressure,
PSIG (kPa)
—
2 (13.8)
4 (27.6)
5 (34.5)
6 (41.4)
8 (55.2)
10 (68.9)
—
—
Capacity-lb/hr. (kg/h),
w/ 5/32* orifice
—
8 (3.6)
12 (5.4)
14 (6.4)
16 (7.3)
19 (8.6)
21 (9.5)
—
—
Filter Section - Disposable Type - Nominal Sizes and Quantities, Downflow Models
Nominal Size, in
18x24
18x24
18x24
18x24
18x24
18x24
18x24
24x31
24x31
Quantity
4
4
4
6
6
8
8
5
5
Upflow Models (Front Return)
Nominal Size, in
24x24
24x24
24x24
24x24
24x24
24x24
24x24
18x24
18x24
Quantity
2
2
2
3
3
4
4
10
10
Upflow Models (Bottom & Rear Return) Bottom Return not available on CW106/CW114
Nominal Size, in
18x24
18x24
18x24
18x24
18x24
18x24
18x24
18x24
18x24
Quantity
4
4
4
6
6
8
8
10
10
CONNECTION SIZES
Chilled Water-OD Copper
1-1/8
1-3/8
1-5/8
1-5/8
2-1/8
2-1/8
2-1/8
2-1/8
2-5/8
Infrared Humidifier-OD Copper
1/4
1/4
1/4
1/4
1/4
1/4
1/4
1/4
1/4
Condensate Drain-FPT
3/4
3/4
3/4
3/4
3/4
3/4
3/4
1-1/4
1-1/4
Steam Reheat-MPT
1/2
1/2
1/2
1/2
3/4
3/4
3/4
3/4
3/4
Hot Water Reheat-OD Copper
5/8
5/8
5/8
7/8
7/8
7/8
7/8
7/8
7/8
Steam Humidifier-MPT
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
Weight-lb (kg)- Installed
810 (367)
845 (383)
895 (406)
1140 (517)
1210 (549)
1390 (630)
1490 (676)
1950 (885)
2090 (949)