Honeywell ML7999A, Product Data

PRODUCT DATA

65-0239-2

® U.S. Registered Trademark
Copyright © 2003 Honeywell International Inc.
 All Rights Reserved 

ML7999A

Universal Parallel-Positioning Actuator

APPLICATION

ML7999A Universal Parallel-Positioning Actuator provides 

100 lb-in. torque, pulse-width-modulating (PWM) control of 

combustion air dampers, butterfly gas valves, oil modulation 

valves, and flue gas recirculation systems. The actuator 

includes a precision feedback potentiometer and integral 

power supply capable of direct line voltage connection. The  

ML7999A Actuator is part of the ControLinks™ Control 

System, and must be used with the R7999 ControLinks™ 

Controller.

FEATURES

• Universal power supply input.
• Password protected with an eight-digit hexadecimal 

identification signal.

• 100 lb-in. (11.3 Nm) torque.
• Includes integral position feedback potentiometer.
• Separate wiring compartment between line voltage 

power wiring and low voltage control.

• Direct coupling shaft interface mounting.
• Couples directly to a 1/2 in. (13 mm) shaft with no 

additional parts required.

• Couples directly to 5/16 in. (8 mm) and 3/8 in. (9 mm) 

shafts using available self-centering shaft reduction 

accessories.

• Shaft coupler assembly available for shafts larger than 

1/2 in.

• Bracket Accessory Kit available for mounting to 

Honeywell V51 Butterfly Gas Valves.

• Visual indication of actuator position.

Contents

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

1

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

1

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

2

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

2

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

3

Wiring ...............................................................................

4

Operation ..........................................................................

5

Checkout And Troubleshooting  ........................................

5