Emerson CW manual Reheat Section

Liebert CW Performance Data—50 & 60 Hz Systems

	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	6050	5900	9300	9100	12,500	12,100	17,100	16,500
	(8920)	(10,280)	(10,020)	(15,800)	(15,460)	(21,240)	(20,560)	(29,070)	(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)	86 (593)	86 (593)	70 (483)	70 (483)	45 (310)	45 (310)	45 (310)	45 (310)	45 (310)
Close Off Pressures-PSI (kPa)
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	85,800	85,800	93,400	144,500	163,200	163,200	171,700	171,700
	(24.6)	(25.1)	(25.1)	(27.4)	(42.4)	(47.8)	(47.8)	(50.3)	(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	49,500	49,500	89,900	89,900	125,200	125,200	133,700	133,700
	(13.7)	(14.5)	(14.5)	(26.3)	(26.3)	(36.7)	(36.7)	(39.2)	(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,	—	2 (13.8)	4 (27.6)	5 (34.5)	6 (41.4)	8 (55.2)	10 (68.9)	—	—
PSIG (kPa)
Capacity-lb/hr. (kg/h),	—	8 (3.6)	12 (5.4)	14 (6.4)	16 (7.3)	19 (8.6)	21 (9.5)	—	—
w/ 5/32* orifice
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)

3