Accessory List

MS-22353
F-27382-1 © Copyright 2006 TAC. All Rights Reserved. 163
Proportional Valve Actuator
Model Chart
Specifications
The MS-22353 proportional valve actuator is a
non-spring return actuator used with proportional
2 to 10 Vdc or 4 to 20 mA controllers and 1/2 to
1-1/4 in. two-way and three-way globe valve bodies
for control of heating and cooling coils. Typical
applications include VAV terminals with reheat
coils, fan coil units, and unit ventilators.
Features:
• Proportional non-spring return actuator controlled by 2 to
10 Vdc or 4 to 20 mA.
• 45 pounds (200 newtons) of output force with automatic
load limit for self-adjusting travel and long motor life.
• Synchronous motor for consistent timing.
• Manual override with automatic release.
• 2 to 10 Vdc actuator position feedback signal.
• Integral linkage for all standard 1/2 to 1 1/4 in. two-way
stem-up open and three-way valve bodies for a wide
variety of applications.
• Compact size for application flexibility.
• Rugged construction with die cast housing.
• 100% input impedance for the 4 to 20 mA input.
Model No. Application
Actuator Power Input Feedback
Typical Timing in
Sec. @ 75°F for
1/2” Stroke
Max. Stroke in
in. (mm)
Voltage (+20%, -15%) Hz VA
2 to 10 Vdc
a
a
Running or manually adjusting the actuator before it is mounted to a valve changes the potentiometer setting and could also cause damage.
60 Hz 50Hz
MS-22353
Chilled/Hot
Water/Steam
b
b
Refer to “Restrictions on Ambient Temperature for Valve Actuators,” for maximum allowable temperature.
24 (Class 2 Power Supply)
50 60 4 Yes 126 151
9/16
(14.3)
Inputs
Control Signal
2 to 10 Vdc or 4 to 20 mA: Proportional control signals (fixed span and start point).
Input Impedance: 100KΩ minimum for voltage input. 100Ω for current input.
Power Refer to Model Chart.
Connections 4 foot (1.2 M) color coded 18 AWG, plenum cable rated for UL.
Outputs
Position feedback signal
2 to 10 Vdc non-adjustable.
Connections: 4 foot (1.2 m) color coded 18 AWG, plenum cable rated for UL.
Mechanical
Force: 45 pounds (200 N) minimum with automatic load limit.
Stroke: Up to 9/16 in. (14.3 mm) maximum, self-adjusting.
Timing: Refer to Model Chart.
Manual Operator
Allows actuator to be manually set at any position upon loss of power. Releases automatically when
power is restored.
S
-
22353
US