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Honeywell ML6194 Product Data

Non-spring return direct coupled actuators
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APPLICATION
The ML6194 and ML6294 Non-Spring Return Direct Coupled
Actuators (DCA) provide floating single-pole, double-throw
(spdt) control of dampers or valves in heating, ventilating, and
air conditioning (HVAC) applications. The ML6294 has an
internal, electrically isolated feedback potentiometer that can
be used to provide indication of motor output hub position or
slave a Series 90 actuator.
® U.S. Registered Trademark
© 2004 Honeywell International Inc.
All Rights Reserved
ML6194, ML6294
Non-Spring Return
Direct Coupled Actuators
FEATURES
• Mount directly on 1/2 in. to 3/4 in. (13 to 19 mm) round
or square shaft. Mount on 1 in. (26 mm) round shafts
with appropriate insert. All models shipped with 1 in.
insert.
• 300 lb-in. (34 N•m) torque.
• Magnetic coupling eliminates need for mechanical
stops or limit switch adjustments by limiting stall
torque, which is dependent on temperature. Nominal
stall torque at room temperature of 68°F (20°C) is 410
lb-in.
• 95° stroke provides necessary compression of
rubber/neoprene gaskets commonly used on 90° low
leakage dampers.
• Declutch feature allows manual adjustment.
• 165 second synchronous timing can eliminate need for
feedback position indication in closed-loop
temperature control applications.
• Both single-point and three-point mounting
compatibility to allow installation flexibility.
• Models available with or without time-out feature.
Application ........................................................................
Features ...........................................................................
Specifications ...................................................................
Ordering Information ........................................................
Installation ........................................................................
Wiring ...............................................................................
Operation ..........................................................................
Checkout ..........................................................................
Troubleshooting ................................................................
PRODUCT DATA
Contents
1
1
2
2
4
6
7
8
8
63-2511—1

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  Summary of Contents for Honeywell ML6194

  • Page 1 APPLICATION The ML6194 and ML6294 Non-Spring Return Direct Coupled Actuators (DCA) provide floating single-pole, double-throw (spdt) control of dampers or valves in heating, ventilating, and air conditioning (HVAC) applications. The ML6294 has an internal, electrically isolated feedback potentiometer that can be used to provide indication of motor output hub position or slave a Series 90 actuator.
  • 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 (51) 15/16 (24) REMOVABLE RETAINING RING FOR HUB SLEEVE REMOVAL. Fig. 2. Approximate dimensions of ML6194/ML6294 Non-Spring Return DCA and mounting bracket in in. (mm). ML6194, ML6294 NON-SPRING RETURN DIRECT COUPLED ACTUATORS Dimensions: See Fig. 2. 7/16 (11) 1-1/4 (32)
  • Page 4: Installation

    Proper insert selection is necessary to avoid excessive strain on output gear. All ML6194/ML6294 Actuators are shipped with a one-inch hub insert. For field use, two hub insert sizes are available (see Accessories section). A mounting bracket (see Fig.
  • Page 5 SLOT INSTALL MOUNTING BRACKET SO THAT MOUNTING BRACKET TAB IS CENTERED IN ACTUATOR SLOT. Fig. 3. Installing mounting bracket on ML6194/ML6294 Non-Spring Return DCA. A typical actuator mechanical connection is shown in Fig. 5; see Fig. 6 through 13 for wiring diagrams.
  • Page 6: Wiring

    All wiring must comply with local electrical codes, ordinances and regulations. The ML6194/ML6294 are designed for use with a Class 2 power supply. Voltage and frequency of 63-2511—1 transformer used must correspond with characteristics of motor and those of power supply.
  • Page 7: Operation

    Fig. 10. ML6194C,F and ML6294 Actuator wiring for auxiliary switches. ML6194 and ML6294 Wiring for Common Transformer Fig. 11 through 13 show typical wiring for ML6194 and ML6294 Non-Spring Return DCA using a common transformer. ML6194, ML6294 NON-SPRING RETURN DIRECT COUPLED ACTUATORS...
  • Page 8: Checkout

    This time-out feature helps to extend actuator life. CHECKOUT Use following procedure to check out ML6194 and ML6294 Non-Spring Return DCA: 1. Check that actuator position indicator and shaft position agree.

This manual is also suitable for:

Ml6294