Emerson CW026 User Manual

15 Liebert
®
CW
™
System Design Manual
Table 2-7 Physical data—Liebert CW106 - CW400, 50/60Hz models
Model Sizes 106 114 146 181 300 400
FAN SECTION
Some options or combinations of options may result in reduced airflow. Consult your Emerson representative for recommendations.
Fan Data - EC Fans - CW106 & CW114 are available in Upflow and Downflow Orientations. CW146 to CW400 are available in Downflow only.
Nominal Air Volume, CFM (CMH) 17,300
(29,410)
17,300
(29,410)
21,000
(35,700)
24,000
(40,800)
40,500
(68,850)
45,700
(77690)
Fan Motor, Maximum hp (kW), Downflow, each 4.0 (3.0) 4.0 (3.0) 3.7 (2.8) 4.9 (3.7) 4.2 (3.4) 5.4 (4.4)
Fan Motor, Maximum hp (kW), Upflow, each 4.0 (3.0) 4.0 (3.0) — — — —
Standard Ext Static Pressure, inches of water (PA) 0.2 (50)
Number of Fans 3 3 3 3 6 6
Fan Data -Forward-curved Blowers - Variable Pitch, Two-Belt Drive Package -
CW106 & CW114 are available in Upflow and Downflow Orientations.
CW146 to CW400 are available with EC Fans in downflow orientation only.
Nominal Air Volume, CFM (CMH) 17,100
(29,050)
16,500
(28,030)
————
Fan Motor, Maximum hp (kW), each 3.0 (2.2) 5.0 (3.7) — — — —
Standard Ext Static Pressure, inches of water (PA) 0.2 (50) — — — —
Number of Fans 3 3 — — — —
CHILLED WATER COIL
Face Area, ft
2
(m
2
)
36.3 (3.4) 56.3 (5.3) 112.6 (10.6)
Number of Rows464646
Face Velocity, EC Fans, FPM (m/s) 476 (1.34) 373 (1.89) 427 (2.16) 359 (1.82) 406 (2.06)
Chilled Water Valves (Standard valves, Maximum design water pressure 150 PSI [1034.3 kPA]. Higher pressure available as an option. Consult
your Emerson representative for information).
Valve Actuator, Sensors, & Body Modulating Valve Actuator with Proportional Sensors and
either 2-Way or 3-Way Valve Body
Valve CV 46.2 46.2; qty 2 46.2; qty 2 46.2; qty 4 46.2; qty 4
Valve Size, in. 2
2-Way Valve (Opt) Close-off Pressure, PSI (kPA) 45 (310) 200 (1,378) 200 (1,378) 200 (1,378) 200 (1,378)
REHEAT SECTION
Electric Reheat - Three-Stage, Fin Tube
Capacity, BTU/HR (kW) 102,390 (30) 102,390 (30) — —
Steam Reheat: 218°F (103.3°C) Steam, 75°F (23.9) EAT Modulating 2-way, 150 PSI (1034.3 kPa) maximum operating
pressure. Not applicable to units with EC fans.
Unit CFM reduced by 300 with standard motor (142 l/s)
Capacity, BTU/HR (kW) 84,100
(24.6)
85,800
(25.1)
————
Hot Water Reheat @ 180°F (82.2°C) EWT 75°F (23.8°C) EAT Modulating 2-way, 150 PSI (1034.3 kPa) maximum operating pressure.
Not applicable to units with EC fans.
Unit CFM reduced by 300 with standard motor (142 l/s)
Capacity, BTU/HR (kW) 133,700 (39.2) — — — —
Flow Rate, GPM (l/s) 8 (0.50) — — — —
Pressure Drop, PSI (kPA) 1.6 (11.0) — — — —

Emerson CW026 Specifications

General

Brand	Emerson
Model	CW026
Category	Air Conditioner
Language	English