PRODUCT DATA
® U.S. Registered Trademark
Copyright © 1997 Honeywell Inc. • All Rights Reserved
63-2534-1
ML6174
ML7174
ML6174, ML7174 Non-Spring Return
Direct Coupled Actuators
APPLICATION
The ML6174 and ML7174 are non-spring return direct
coupled actuators (DCA) used to control dampers in
applications such as variable air volume (VAV) terminal units.
Suitable for use with single pole double throw (spdt) floating
thermostats and electronic systems.
FEATURES
•
Damper shaft direct mount.
•
70 lb-in. torque.
•
45
°
, 60
°
, and 90
°
selectable stroke in either clockwise
(cw) or counterclockwise (ccw) directions.
•
90-second timing models suitable for use with
pressure-independent VAV systems.
•
Seven-minute timing models suitable for use with
pressure-dependent VAV systems.
•
Magnetic coupling provides 130 lb-in. (or less) stall
torque, eliminating the need for mechanical stops or
limit switch adjustments.
•
Two field-addable auxiliary switches.
•
Auxiliary feedback potentiometer field-addable on
some models.
•
0
°
to 30
°
minimum position adjustment (cw or ccw
direction) on some models.
•
Manual declutch on all models.
•
W7620 Terminal Unit Controller compatibility.
•
2 to 10 Vdc or 4 to 20 mA control input for ML7174.
•
Commercial Zone Damper in W7600 Commercial Zone
System compatibility.
•
UL94-5V rated.
Contents
Application ..........................................................................
Features ..............................................................................
Specifications ......................................................................
Ordering Information ...........................................................
Installation ...........................................................................
Operation ............................................................................
Checkout ............................................................................. 11
