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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
® U.S. Registered Trademark
Copyright © 2003 Honeywell International Inc.
All Rights Reserved
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.
Application ........................................................................
Features ...........................................................................
Specifications ...................................................................
Ordering Information ........................................................
Installation ........................................................................
Wiring ...............................................................................
Operation ..........................................................................
Checkout And Troubleshooting ........................................
ML7999A
PRODUCT DATA
Contents
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65-0239-2
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Summary of Contents for Honeywell ML7999A
- Page 1 ML7999A Universal Parallel-Positioning Actuator PRODUCT DATA 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.
- Page 2 If you have additional questions, need further information, or would like to comment on our products or services, please write or phone: 1. Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory). 2. Honeywell Customer Care...
- Page 3 ML7999A UNIVERSAL PARALLEL-POSITIONING ACTUATOR 3. Installer must be a trained, experienced service technician. 4 (102) 7/8 (22) 3-1/2 (89) 4. After installation is complete, check out product 1-7/8 (47) 1/4-28 operation as provided in these instructions. 1-5/8 WARNING (41) (13) Fire or Explosion Hazard.
- Page 4 ML7999A UNIVERSAL PARALLEL-POSITIONING ACTUATOR WIRING Mounting the ML7999 Actuator on V5197A Firing Rate Gas Valve. (Fig. 2) WARNING WARNING Electrical Shock Hazard. Can cause severe injury or death. Explosion Hazard and Electrical Shock Hazard. Disconnect power supply before installation. Can cause severe injury, death or property damage.
- Page 5 ML7999A UNIVERSAL PARALLEL-POSITIONING ACTUATOR ML7999 LINE VOLTAGE WIRING R7999 1/2 IN. MAXIMUM TERMINATE WIRE SHIELD AT THE CONTROLLER (R7999). M16469 SEE FIGURE 5 FOR ACTUATOR WIRING. Fig. 6. Typical ML7999 wiring. VOLTAGE WIRING M16470 OPERATION Fig. 5. Opening ML7999 low-voltage wiring compartment.
- Page 6 ML7999A UNIVERSAL PARALLEL-POSITIONING ACTUATOR 8. If the device shaft turns, reconnect the actuator and bind and that the actuator and device are both at the wiring and drive the actuator hub clockwise and same clockwise or counterclockwise end stop when counterclockwise.
- Page 7 65-0239—2...
- Page 8 Automation and Control Solutions Honeywell International Honeywell Europe S.A. Honeywell Latin American Region Honeywell International Inc. Honeywell Limited-Honeywell Limitée Control Products 3 Avenue du Bourget 1985 Douglas Drive North 35 Dynamic Drive Honeywell Building 1140 Brussels 480 Sawgrass Corporate Parkway...