PRODUCT DATA
® U.S. Registered Trademark
Copyright © 1997 Honeywell Inc. • All Rights Reserved
ML7295 Spring Return
Direct Coupled Actuators
APPLICATION
The ML7295 Spring Return Direct Coupled Actuator (DCA) is
a control motor that provides proportional control for dampers
or valves in heating, ventilation, and air conditioning (HVAC)
applications. The actuator accepts either a current or voltage
signal from any electronic controller to position the damper/
valve at any chosen point between fully open and fully closed.
For hydronic valve applications, a complete line of brackets
and linkages are available for mounting Honeywell DCAs on
globe valves and on Honeywell ball valves. The ML7295
provides an electronic feedback signal (0-10 Vdc). This
feedback signal provides indication of the motor output hub
position and can be used for rebalancing an external control
circuit.
FEATURES
•
Brushless DC motor achieves sophisticated control of
speed, torque and braking.
•
Provides 142 lb-in. (16 N•m) torque.
•
Mounts directly on 3/8 in. to 1 in. (9 to 25 mm) round
and 1/4 in. to 3/4 in. (6 to 18 mm) square shafts.
•
Self-centering shaft coupling minimizes installation
time.
•
Spring return direction is field-selectable to simplify
installation.
•
Manual override permits unpowered positioning to
simplify installation and troubleshooting. Deactivation
of interlock is manual or automatic when power is
restored.
•
Highly-visible position indicator facilitates setup,
checkout and troubleshooting.
•
Rugged, lightweight all-metal alloy housing provides
durability.
•
Integral conduit connection.
•
Integral adjustable range-stop.
•
Models available with 0-10 Vdc input signal.
•
Models available with 4-20 mA input signal.
•
Models available with adjustable zero and span.
•
Models available with two fully adjustable line voltage
auxiliary switches.
Contents
Applications ......................................................................
1
Features ...........................................................................
1
Specifications ...................................................................
2
Ordering Information ........................................................
2
Installation ........................................................................
3
Operation .........................................................................
6
Checkout ..........................................................................
7
129-237
Rev. 1, 10/97
63-2539-1
