Accessory List

MU-12313
196
© Copyright 2006 TAC. All Rights Reserved. F-27382-1
Electronic Gear Train Economizer Actuator
Model Chart
Specifications
This actuator provides modulating operation of
dampers and other equipment which require the
return to normal position upon power interruption.
Adjustable minimum position control 0 to 90°.
Replaces Honeywell M-7415A and functionally
replaces White-Rodgers 3420-4.
Features:
• Proportional damper economizer actuator with built-in
controller.
• Adjustable mixed air setpoint, throttling range, minimum
positions, and travel.
•Spring return.
Model No. Description
Watts VA
Running Holding Running Holding
MU-12313 Round output shaft
14.4 9.6 14.2 9.2
MU-12313-100 Square output shaft
Control circuit Two-wire.
Mixed or discharge air sensor
Thermistor (8 in. long) with 1/4 in. male quick connectors and integral mounting flange; 10K Ω at
77°F (25°C), negative temperature coefficient. Supplied with actuator.
MA (Mixed Air) setpoint Dial adjustable 40 to 65°F (4 to 18°C); factory set at 55°F (18°C).
Throttling range Factory set. Refer to Throttling Ranges Table.
Power supply
24 Vac, Class 2 (+10, -15% for 0 to 90° travel; +10, -10% for 90 to 180° travel), 60 Hz 24 Vac, Class 2
(+10, -10%), 50 Hz.
Torque
Rated 25 lb-in. (2.8 N-m).
Limit 40 lb-in. (4.5 N-m) under stall conditions.
Nominal Damper Area Actuator sizing should be done in accordance with damper manufacturer’s specifications.
Shaft output Dual output; either shaft can be used if torque limit is not exceeded.
Environment
Shaft rotation
CCW when power is applied. (The front of the actuator is defined as the right end when facing the
field wiring terminals.) Maximum shaft rotation field adjustable 75°, 90°, 110°, 160°, 180°; factory set
90°. When used with 50 Hz power supply, rotation is limited to 75° or 90° adjustments.
Minimum position Factory set 22°. Dial adjustable 0 to 90°.
Timing
Powered 28 sec/90°.
Spring return 18 sec/90°.
Environment
Ambient temperature limits
Shipping and storage: -40 to 160°F (-40 to 71°C).
Operating: -40 to 140°F (-40 to 60°C).
Humidity 5 to 95% RH, non-condensing.
Locations NEMA Type 1 (NEMA 3R with AM-219 installed and mounted in vertical position).
Vibration Maximum 1G in any plane.
Wiring connections Side mounted #6 self tapping screw 1/4 in. tab.
MU
-
12313
MU-12313
Thermistor Sensor
(
Shi
pp
ed with actuator.
)