Emerson CW026 User Manual

13 Liebert
®
CW
™
System Design Manual
Table 2-6 Physical data, Liebert CW026 - CW089, 50/60Hz models
Model Sizes 026 038 041 051 060 076 084 089
FAN SECTION
Some options or combinations of options may result in reduced airflow. Consult your sales representative for recommendations.
Fan Data - EC Fans - Available in Upflow and Downflow Orientations (CW089 available in downflow only)
Nominal Air Volume, CFM (CMH) 5,250
(8,925)
6,050
(10,285)
5,950
(10,115)
9,200 (15,640) 9,200 (15,640)
12,400
(21,080)
11,900
(20,230)
12,100
(20,570)
Fan Motor, Maximum hp (kW),
Downflow, each
4.0 (3.0) 4.0 (3.0) 4.0 (3.0)
3.6
for 208/230 V
3.4
for 380 to 460V,
60 Hz/50 Hz
3.6
for 208/230 V
3.4
for 380 to 460V,
60 Hz/50 Hz
4.0 (3.0) 4.0 (3.0) 4.0 (3.0)
Fan Motor, Max hp (kW),
Upflow, each
4.0 (3.0) 4.0 (3.0) 4.0 (3.0) 4.0 (3.0) 4.0 (3.0) 4.0 (3.0) 4.0 (3.0) 4.0 (3.0)
Standard Ext Static Pressure, inches 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)
Number of Fans 1 1 1 2 2 2 2 2
Fan Data - Forward-curved Blowers - Variable Pitch, Two-Belt Drive Package - Available in Upflow and Downflow* Configurations
Nominal Air Volume,
CFM (CMH)
5,050
(8,580)
5,850
(9,940)
5,750
(9,770)
9,150
15,550
8,900
(15,120)
12,100
(20,560)
11,650
(19,790)
N/A
Fan Motor, Maximum hp (kW), each 3.0 (2.2) 5.0 (3.7) 7.5 (5.6) 10.0 (7.5)
Standard Ext Static Pressure, inches 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)
Number of Fans 1 1 1 2 2 2 2 2
CHILLED WATER COIL
Face Area, ft
2
(m
2
)
11.7 (1.1) 18.5 (1.7) 25.0 (2.3) 36.3 (3.4)
Number of Rows 3 4 6 4 6 4 6 6
Face Velocity, EC Fans, FPM (m/s) 450
(2.28)
519
(2.63)
510
(2.59)
503
(2.55)
503
(2.55)
496
(2.51)
476
(2.41)
333
(1.69)
Chilled Water Valves (Standard valves, Maximum design water pressure 150 PSI[1034.3 kPA]. Higher pressure available as an option.
Consult your sales representative for information).
Valve Actuator, Sensors, and Body Modulating Valve Actuator with Proportional Sensors and either
2-Way or 3-Way Valve Body
Valve CV 11.6 11.6 28.9 28.9 46.2 46.2 46.2 46.2
Valve Size, in. 1 1-1/4 1-1/2 1-1/2 2 2 2 2
2-Way Valve (Opt) Close-off Pressure,
PSI (kPA)
86 (593) 70 (483) 45 (310) 45 (310)
REHEAT SECTION
Electric Reheat - Three Stage, Fin/Tube
Capacity, BTU/HR (kW) 34,130 (10) 51,195 (15) 68,260 (20) 83,325 (25) 102,390 (30)
Steam Reheat: 218°F (103.3°C)
Steam, 75°F (23.9°C) EAT
Modulating 2-way, 150 PSI (1034.3 kPa) max operating pressure.
Not applicable to units with EC fans.
Unit CFM reduced by 300 with standard motor (142 l/s)
Capacity, BTU/HR (kW) 85,800
(25.1)
85,800
(25.1)
85,800
(25.1)
93,400 (27.4) 144,500 (42.4)
163,200
(47.8)
163,200
(47.8)
N/A
Hot Water Reheat @ 180°F (82.2°C)
EWT & 75°F (23.8°C) EAT
Modulating 2-way, 150 PSI (1034.3 kPa) max operating pressure.
Not applicable to units with EC fans.
Unit CFM reduced by 300 with standard motor (142 l/s)
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)
N/A
Flow Rate, GPM (l/s) 5 (0.31) 5 (0.31) 5 (0.31) 8 (0.50) 8 (0.50) 8 (0.50) 8 (0.50) N/A
Pressure Drop, PSI (kPA) 3.5 (24.1) 1.6 (11.0) 1.6 (11.0)

Emerson CW026 Specifications

General

Brand	Emerson
Model	CW026
Category	Air Conditioner
Language	English