Emerson CW manual Reheat Section

Page 7

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

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Contents Liebert CW Page Figures Page Fan with Standard Motor Liebert CW Model Number Nomenclature= SFA = Forward-Curved Centrifugal80F DB, 66.8F WB 26.6C DB, 19.3C WB 50% RH Liebert CW Performance DATA-50 & 60 HZ SystemsReheat Section Connection Sizes Liebert CW Performance DATA-MODELS with EC FANS, 50 & 60 HZCW181 Electrical Data with EC Fans CW106 and CW114 Electrical Data with EC FansElectrical DATA-UNITS with EC Fans Dimensional Data. inches mm Net Weight Model Lb kg Dimensional DataModels With Pre-Filters Models with PRE-FILTERS Unit Dimensional DataFloor Cutout Dimensions Dimensional Data, inches mm Net Weight Model Lb kgFront View Floor Cutout Dimensions Unit Dimensional DataModels With Rear Return Duct Connection Data Unit Dimensional DataDuct Connection Data Upflow Duct Connection Data CW026-CW084TOP- Front Supply Shown Front of UnitTOP-FRONT Supply Shown Electrical data-50 Hz systems Electrical SpecificationsIR/SGH Models / Motor Volts 208 230 460 575 CW026 Electrical data-60 Hz SystemsFLA LRA Cabinet and Frame Construction SummaryDesign Requirements SubmittalsUser Menus Shall be Defined as Follows Service Menus Shall be Defined as Follows Liebert iCOM Wall-Mount Large Graphic Display Optional Chilled Water Control Valve Variable Speed Drive-Optional Flow Switch-OptionalHigh Pressure Chilled Water Control Valve-Optional Frame Chilled Water CoilField Quality Control Installation of Precision Cooling UnitsExecution Page That Ne tIti Ti n
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