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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.


  • 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.

Product Specifications

Pulse-width-modulating (PWM) control of combustion air dampers, butterfly gas valves, oil modulation valves, and flue gas recirculation systems
Dimensions (in.)
4 in. wide x 5-1/2 in. high x 3-1/2 in. deep
Dimensions (mm)
102 mm wide x 140 mm. high x 89 mm. deep
Temperature Range (F)
-40 F to +140 F
Temperature Range (C)
-40 C to +60 C
Used With
Must be used with the R7999C1005 ControLinks Controller
ISO23552-1 for Canada
Item Type
50 Hz; 60 Hz
Approvals, Underwriters Laboratories Inc.
Listed: Report No. MH17367
Approvals, Canadian Standards Association
Operating Humidity Range (% RH)
5 to 95% RH, non-condensing
15VA,100 to 240 Vac +10% -15%,
Shipping and Storage Temperature Range (F)
-40 F to +150 F
Shipping and Storage Temperature Range (C)
-40 C to +65 C
0.0 to 0.5g continuous (V2 level).
Approvals, Factory Mutual
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