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Honeywell ML4105 Product Data

Fast-acting, two-position actuators for fire/smoke control applications
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ML4105, ML4115, ML8105, ML8115
Fast-Acting, Two-Position Actuators
APPLICATION
The ML4105, ML4115, ML8105, and ML8115 Fast-Acting,
Two-Position Actuators are spring return direct coupled
actuators (DCA) with an integral junction box for on/off
damper control. The actuator accepts an on/off signal from a
single-pole, single-throw (spst) controller. Models are
available with clockwise (cw) or counterclockwise (ccw) spring
return and are designed to operate reliably in smoke control
systems requiring Underwriter's Laboratories Inc. UL555S
ratings up to 350°F.
® U.S. Registered Trademark
Copyright © 2003 Honeywell International Inc.
All Rights Reserved
FOR FIRE/SMOKE CONTROL APPLICATIONS
FEATURES
• 30 lb-in. (3.4 N•m) or 50 lb-in. (5.7 N•m) minimum
driving torque at 350°F (176°C).
• Integral spring return ensures level of return torque.
• Fifteen-second spring return timing.
• No special cycling required during long-term holding.
(See Operation section.)
• No audible noise during holding.
• Patent pending design eliminates need for limit
switches to reduce power consumption.
• Models available for 24, 120, and 230 Vac.
• Ninety-five degree angle of rotation.
• Actuator holds rated torque at reduced power level.
• Die-cast aluminum housing.
• Housing design allows flush mounting to damper.
• Integral junction box with three conduit openings
eliminates need for separate wiring box.
• High-temperature indicator included.
APPLICABLE LITERATURE
— Motor/Actuator Selection Guide
for Damper Applications
— Engineering Manual of Automatic Control
(also called The Gray Manual)
— Direct Coupled Actuator
Quick Selection Guide
— Damper Torque Calculator
Application ........................................................................
Features ...........................................................................
Applicable Literature .........................................................
Specifications ...................................................................
Ordering Information ........................................................
Installation ........................................................................
Operation ..........................................................................
Checkout ..........................................................................
N314
PRODUCT DATA
63-8419
77-1100
63-8553
63-8437
Contents
1
1
1
2
2
4
6
6
63-2540-9

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  Summary of Contents for Honeywell ML4105

  • Page 1 ML4105, ML4115, ML8105, ML8115 Fast-Acting, Two-Position Actuators APPLICATION The ML4105, ML4115, ML8105, and ML8115 Fast-Acting, Two-Position Actuators are spring return direct coupled actuators (DCA) with an integral junction box for on/off damper control. The actuator accepts an on/off signal from a single-pole, single-throw (spst) controller.
  • Page 2: Specifications

    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 Timing (At Rated Torque and Voltage): Drive Open: ML4105, ML8105: 15 sec maximum, 14 sec typical. ML4115: 25 sec maximum, 18 sec typical. ML8115: 25 sec maximum, 22 sec typical. Spring Close: 15 seconds. Cycling Requirements: Prolonged holding-period (1 year) testing of these actuators has been performed with no spring return failures.
  • Page 4: Installation

    Low voltage can shock individuals or short equipment circuitry. Disconnect power supply before installation. Location and Mounting The ML4105, ML4115, ML8105 and ML8115 DCA are designed to open a damper by driving the damper shaft in either clockwise or counterclockwise...
  • Page 5 2. Voltage and frequency of transformer used with ML8105 and ML8115 must correspond with the characteristics of power supply and actuator. 3. Use wires rated for at least 75°C (167°F). ML4105, ML4115, ML8105, ML8115 FAST-ACTING, TWO-POSITION ACTUATORS 24 VAC M17585A 120 VAC...
  • Page 6: Operation

    ML4105, ML4115, ML8105, ML8115 FAST-ACTING, TWO-POSITION ACTUATORS OPERATION The ML4105, ML4115, ML8105, and ML8115 DCA are designed for use in Smoke Control Systems. If power fails, the actuator spring returns to the 0° position. The actuator mounts flush with the damper box. The actuator drives from 0° to 95°...
  • Page 7 Instrucciones de montage 24 VAC 120 VAC ASSEMBLY EINBAU MONTAGE MONTAGGIO MONTAGE MONTERE MONTERING ASENTAMINEN MONTERA MONTAJE M11874 M12030 ML4105, ML4115, ML8105, ML8115 FAST-ACTING, TWO-POSITION ACTUATORS A1, A4 M11881 M11875 M11876 MIN: 45 lb-in. (5.1 Nm) MAX: 60lb-in. (6.8 Nm) M11882 63-2540—9...
  • Page 8 ML4105, ML4115, ML8105, ML8115 FAST-ACTING, TWO-POSITION ACTUATORS 24 VAC 120 VAC DISASSEMBLY AUSBAU DÉMONTAGE SMONTAGGIO DEMONTAGE AFMONTERE DEMONTERE PURKAMINEN NEDMONTERA DESMONTAJE M11884 ® National Fire Codes is a registered trademark of the National Fire Protection Association (NFPA). Automation and Control Solutions Honeywell International Inc.

This manual is also suitable for:

Ml4115Ml8105Ml8115