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ML6131 DIRECT COUPLED ACTUATOR

63-2498—2

2

ORDERING INFORMATION

When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the 
TRADELINE® Catalog or price sheets for complete ordering number.

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 Home and Building Control Sales Office (check white pages of your phone directory).

2.

Home and Building Control Customer Logistics
Honeywell Inc., 1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386

In Canada—Honeywell Limited/Honeywell Limitée, 155 Gordon Baker Road, North York, Ontario M2H 3N7.
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, 
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.

SPECIFICATIONS

Models:
ML6131B: 6 lb-in. torque, selectable 45°, 60°, and 90° stroke 

in both cw and ccw directions. 15 second timing, spdt 
Floating Series 60, includes auxiliary potentiometer drive 
for use with field-addable feedback potentiometer. Includes 
minimum position adjustment setscrews for cw or ccw 
operation. Includes 4074ENJ Bag Assembly.

Dimensions: See Fig. 1.

Electrical Ratings: Input Voltage: 24 Vac ±20%, 50/60 Hz.

Power Consumption (Maximum), at 24 Vac: 2.2W, 0.095A, 
2.4 VA.

Ambient Ratings: 
Operating Temperature: 32°F to 130°F (0°C to 54°C).
Shipping and Storage: -20°F to 120°F (-29°C to 49°C).
Humidity: 5% to 95% RH noncondensing.

Torque Ratings: See Table 1.

Minimum Life Cycle Rating: 400,000.

Repositions: 1.5 million.

Actuator Timings (At 50 Hz Nominal):
90°-18 sec.
60°-12 sec.
45°-9 sec.

Actuator Timings (At 60 Hz Nominal):
90°-15 sec.
60°-10 sec.
45°-7.5 sec.

Damper Shaft Mounting:

Suitable for mounting onto 3/8 to 1/2 in. square or round 
damper shafts secured by two 1/4 in. 28 NF Allen screws.

Minimum damper shaft length 1-3/4 in. (45 mm).

Actuator may be mounted with actuator shaft in any 
position.

Feedback Potentiometer Ratings (ML6131B):
200976A,C Electrical Rating: 24 Vac, 50/60 Hz, 2.25 watts.

Resistance Output (Resistance Linear as Measured 
Between Terminal R-B):
0 ohms (at 0 degree, cw stroke).
250 ohms (at 45 degree, cw stroke).
333 ohms (at 60 degree, cw stroke).
500 ohms (at 90 degree, cw stroke).

Auxiliary Switch Ratings: Electrically selective NO or NC, 

not simultaneous.

Pilot Duty: 40 VA, 24 Vac.

Switch Differential: 3 angular degrees maximum.

Approvals:
Underwriters Laboratories Inc. Component Recognized: 

File No. E4436; Guide No. XAPX2.

CSA Certified (includes auxiliary switch).

Accessories:
201052A One Auxiliary Switch.
201052B Two Auxiliary Switch.
201052C Three Auxiliary Switch.
200976A 0 to 500 ohm Auxiliary Potentiometer.
200976C 0 to 2000 ohm Auxiliary Potentiometer.
4074ENJ Bag Assembly—includes stop pin, shaft adapter, 

and minimum position screw.

4074ENY Bag Assembly—includes stop pin and shaft 

adapter.

4074EVK Short Shaft Extension Kit—to adapt actuator output 

hub to short VAV damper shafts.

7640QW Metal Enclosure—for running conduit to actuator.

Table 1. Torque Ratings.

Torque

Running

6 lb-in. (0.7 N•m)

Breakaway

6 lb-in. (0.7 N•m)

Stall (Typical)

7.5 lb-in. (0.8 N•m) minimum
18 lb-in. (2.0 N•m) maximum

Содержание ML6131

Страница 1: ...erclockwise ccw directions 15 second timing model suitable for use with pressure independent VAV systems Magnetic coupling typically provides a maximum of 18 lb in stall torque eliminating the need for mechanical stops or limit switch adjustments Two field addable auxiliary switches Field addable auxiliary feedback potentiometer Models available with 0 to 30 minimum position adjustment in cw or cc...

Страница 2: ...ity 5 to 95 RH noncondensing Torque Ratings See Table 1 Minimum Life Cycle Rating 400 000 Repositions 1 5 million Actuator Timings At 50 Hz Nominal 90 18 sec 60 12 sec 45 9 sec Actuator Timings At 60 Hz Nominal 90 15 sec 60 10 sec 45 7 5 sec Damper Shaft Mounting Suitable for mounting onto 3 8 to 1 2 in square or round damper shafts secured by two 1 4 in 28 NF Allen screws Minimum damper shaft len...

Страница 3: ...n areas free of acid fumes and deteriorating vapors Location Choose a location for the actuator that allows enough clearance for mounting accessories and for servicing Mounting These actuators are designed to open a damper or valve by driving the shaft in either the clockwise cw or counterclockwise ccw direction The actuator has a mounting tab on the bottom that secures it to a damper box or valve...

Страница 4: ...ons shipped with the linkage For damper mounting proceed as follows 1 Place the actuator onto the damper shaft CAUTION Equipment Damage Hazard Improper range stop selection can damage light duty dampers Be sure to select the proper range stop 2 If the angle of the damper opening is either 45 or 60 close the actuator using the manual declutch a Disengage the hub using the declutch lever see Manual ...

Страница 5: ...The caps ensure that dust and other impurities do not enter the gear train through unused holes 5 Thread the locknut fully onto the 1 4 in setscrew 6 Insert the setscrew into the desired hole turning clockwise until resistance is encountered or the locknut contacts the housing 7 If resistance is met before the setscrew is fully inserted stop and review the initial setup procedures as detailed in s...

Страница 6: ...h the characteristics of both the power supply and the actuator Screw terminals are provided for easy hookup See Fig 9 for typical wiring Auxiliary Switches The 201052A B or C Auxiliary Switch is used in conjunction with the actuator It allows for control of equipment external to the actuator for example electric reheat coils and fan at an adjustable point in the stroke 0 to 90 of the actuator The...

Страница 7: ...an result in improper resistance values at desired stroke To Calibrate the 200976A C IMPORTANT Remove the range stop pins and minimum position setscrews prior to calibration 1 Drive the actuator fully closed 0 to fully open 90 and back again to the fully closed position This must be done to receive the correct resistance readings at the appropriate degree of stroke 2 Check the resistance values of...

Страница 8: ... the faster 15 second ML6131 models Parallel Actuators IMPORTANT Over time parallel driving actuators can become out of sync with each other Normally driving all actuators to the fully open or fully closed position puts them back in sync Using Fig 9 parallel the CW COM and CCW terminals Make certain the total connected load does not exceed the current capacity of the controller or thermostat CHECK...

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