Honeywell ML6131 User Manual

Direct Coupled Actuator

APPLICATION

The ML6131 Direct Coupl ed Act uator (DCA) is u sed to cont rol dampers in applications such as variable air volume (VAV) terminal units. It is suitable for use with single pole double throw (spdt) floating thermostats or two-position control systems.

ML6131

PRODUCT DATA

FEATURES

• Mounts directly on damper shaft.

• 6 lb-in. torque.

• Selectable 45°, 60°, and 90° stroke in either clockwise

(cw) or counterclockwise (ccw) directions.

• 15 second timing model s uitab le 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 ccw directions.

• Compatible for use with Honeywell W7620 Terminal Unit Controller.

• Can be used with the Commercial Zone Damper in the W7600 Commercial Zone System.

• Manual declutch on some models.

Contents

Application ........................................................................ 1

Features ........................................................................... 1

Specifications ................................................................... 2

Ordering Information ........................................................ 2

Installation ........................................................................ 3

Operation .......................................................................... 8

Checkout .......................................................................... 8

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ML6131 DIRECT COUPLED ACTUATOR

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-adda ble feedback potentiometer. Includes minimum position adjustment setscrews for cw or ccw operation. Includes 4074ENJ Bag Assembly.

Dimensions: Electrical Ratings: Power Consumption (Maximum), at 24 Vac:

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: Minimum Life Cycle Rating: Repositions: 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.

See Fig. 1.

Input Voltage: 24 Vac ±20%, 50/60 Hz.

2.2W, 0.095A,

See Table 1.

400,000.

1.5 million.

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:

not simultaneous.

Pilot Duty: Switch Differential: 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 Extensi on Kit—t o a dap t a ctu ato r ou tpu t

hub to short VAV damper shafts.

7640QW Metal Enclosure—for running conduit to actuator.

40 VA, 24 Vac.

Electrically selective NO or NC,

3 angular degrees maximum.

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.

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

Table 1. Torque Ratings.

Torque

18 lb-in. (2.0 N•m) maximum

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:

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

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.

63-2498—2 2

CAUTION

3-3/8 (86)

ADD SPACER BETWEEN DAMPER BOX AND TAB

DAMPER SHAFT

ML6131

VAV BOX HOUSING

M4449

CW COM CCW

1 (25)

4-1/4 (108)

4-7/8

(123)

11/16

(18)

2-7/8 (73)

OPTIONAL AUXILIARY SWITCH

1-11/16

(42)

2-1/2 (64)

7/8

(22)

1-5/16

(33)

M18016

ML6131 DIRECT COUPLED ACTUATOR

Actuator Damage Hazard. Deteriorating vapors and acid fumes can damage the actuator metal parts.

1/8 (3)

Install actuator in 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 botto m that sec ures it to a dampe r box or valve linkage. When mounted correctly, this tab allows the actuator to float without rota ting relative to the sh aft. The tab is sized for 1/4 in. self-tapping sheet metal screws (not included).

Fig. 1. Approximate dimensions of ML6131

Direct Coupled Actuator in in. (mm).

INSTALLATION

When Installing this Product...

Read these instructio ns c aref ull y. Failure to follow them could damage the product or cause a hazardous condition.

Check the ratings given in the instructions and on the product to make sure the product is suitable for your application.

Installer must be a trained, experienced service technician.

After installation is complete, check out product operation as provided in these instructions.

IMPORTANT

All wiring must agree with applicable codes, ordinances and regulations.

WARNING

Explosion Hazard. A spark from the actu ator or attached accessori es can result in serious injury or death.

Install the actuator in areas free of escaping gas and other explosive vapors.

Equipment Damage Hazard. Tightly securing mounting tab to damper housing can damage actuator.

Once mounted, the actuator must be allowed to float; do not fully tighten the screw.

These actuators are ship ped in the fully cl ockwise 90° pos ition as viewed from the end of the damper shaft.

Equipment Damage Hazard. Mounting actuator unevenly with damper housing can damage actuator.

Mount actuator flush with damper housing or add spacer between mounting tab and damper box housing (see Fig. 2).

CAUTION

Electrical Shock or Equipment Damage Hazard. Can shock individuals or short equipment circuitry.

Disconnect all power supplies before installation. Actuators with auxiliary switches can have more than one disconnect.

Fig. 2. Mounting actuator to VAV box when

actuator is not flush with box.

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