Honeywell ML7999C, Product Data

PRODUCT DATA

32-00079EF-01

ML7999C Universal 
Parallel-Positioning Actuator

APPLICATION

ML7999C 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 ML7999C Actuator is part of 
the ControLinks™ Control System, and must be used with 
the R7999C 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.
• NEMA 3 rating with optional weatherproof kit.
• UL, FM, CSA approved.

SPECIFICATIONS

Model:

ML7999C Universal Parallel-Positioning Actuator. 

Medium torque electronic actuator with a precision 
feedback potentiometer and integral power supply 
capable of direct line voltage connection.

Dimensions: 

See Fig. 1.

Electrical Ratings:

Power Input: 100 to 240 Vac +10% -15%, 50/60 Hz.
Maximum Power Consumption: 15 VA.

IMPORTANT

Device must be hardwired.

Temperature Range:

Ambient: -40°F to +140°F (-40°C to +60°C).
Storage: -40°F to +150°F (-40°C to +66°C).

Humidity Range (at 95°F [35°C]): 

5 to 95 percent relative 

humidity, noncondensing.

Contents

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

1

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

1

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

1

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

2

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

3

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

4

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

5

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

8