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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 Fans111222233
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
Quantity444668855
Upflow Models (Front Return)
Nominal Size, in 24x24 24x24 24x24 24x24 24x24 24x24 24x24 18x24 18x24
Quantity22233441010
Upflow Models (Bottom & Rear Return) Bottom Return not available on CW106/CW114
Nominal Size, in 18x24 18x24 18x24 18x24 18x24 18x24 18x24 18x24 18x24
Quantity44466881010
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)