Honeywell ML6161 Series, Product Data

PRODUCT DATA

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63-2209-8

35 and 70 lb-in.

Non-Spring Return

 Direct Coupled Actuators

ML6161, ML7161, ML6174, ML7174

APPLICATION

The 35 and 70 lb-in. Non-Spring Return Direct Coupled 

Actuators (DCA) are control actuators that provide floating or 

proportioning control for valves and dampers. The 

proportioning actuators accept a current or voltage signal from 

a controller to position the damper or valve at any chosen 

point between fully open and fully closed. Floating actuators 

are suitable for use with single pole double throw (spdt) 

floating thermostats or two-position control systems. 

Two-position control requires installation of the 201052B 

Auxiliary Switch.

FEATURES

• Selectable 45°, 60°, or 90° stroke in both clockwise 

(cw) or counterclockwise (ccw) directions.

• 0° to 30° minimum position adjustment (cw or ccw 

direction) on all models.

• Magnetic coupling eliminates the need for mechanical 

stops.

• Two field-addable auxiliary switches.
• Auxiliary feedback potentiometer field-addable on 

select models.

• Manual declutch on all models.
• ML7161 and ML7174 models include standard reverse/

direct acting rotation switch on outside cover.

• W7620 Terminal Unit Controller compatibility.
• Commercial zone damper in W7600 Commercial Zone 

System compatibility.

Contents

Application ........................................................................

1

Features ...........................................................................

1

Specifications ...................................................................

2

Ordering Information  ........................................................

2

Installation ........................................................................

5

Operation .......................................................................... 10

Checkout .......................................................................... 12