T.A.C. MA40-7170 User Guide

Page 1

TAC

1354 Clifford Avenue P. O. Box 2940 Loves Park, IL 61132-2940 www.tac.com

Application

TAC DuraDrive Direct Coupled Actuators are designed to be used in both damper and valve control applications. The follow general instructions are for damper applications, refer to the Applicable Literature table for valve literature.

The MA40-717X series actuators are over the shaft spring return actuators used for two-position control applications.

Features

MA40-717X Series

TAC DuraDrive™ Series Spring Return

Two Position Actuators

General Instructions

• 150 lb-in (17 N-m) rated torque

• NEMA Type 4 housing (IEC IP56)

• Custom automatic current sensing motor control

provides extended reliability and repeatable timing

• Direct coupled to the damper shaft with dual

industrial hardened universal mounting clamps

• Two-position actuator controlled by SPST controller

• Clockwise or counterclockwise spring return is

determined by actuator mounting position

• Accurate 93° travel digitally controlled

• Integral position indication scale

• Rugged die-cast housing

• Oil immersed gear train provides continuous

lubrication

• Rated for operating temperature up to 140 °F

• Five year warranty

†

† Refer to Table-1 to identify specific models that are in conformance with CE standards.

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Applicable Literature

F-Number Description Audience Purpose

F-26750

F-26751

F-26646

F-26752

F-26080 EN-205 Water System Guidelines

F-13755 CA-28 Control Valve Sizing

F-11080 Valve Selection Chart Water

F-11366 Valve Selection Chart Steam (two-way valves only)

MX40-6XXX-2XX, MX40-7XXX-2XX Series Actuator/Linkage Assemblies General Instructions

VX-2000 Series Ball Valve Assembly Installations Instructions

MX40-7XXX, MX40-6XXX Series TAC DuraDrive Actuator Selection Guide

VX-2000, VX-7000 Series MX40-7XXX, MX40-6XXX Series Ball/Linked Globe Valve Assemblies Actuator/Linkage Assemblies Selection Guide

– Sales Personnel – Application Engineers –Installers – Service Personnel – Start-up Technicians

– Application Engineers –Installers – Service Personnel – Start-up Technicians

Describes the globe valve actuator/linkage assembly’s features, specifications, and possible applications. Provides step-bystep mounting instructions.

Describes the actuator/linkage/ball valve assembly’s features, specifications, and possible applications. Provides step-bystep mounting instructions.

Provides actuator specifications and part number cross referencing of phased out actuators with the new TAC direct-coupled actuators.

Provides part number cross referencing of phased out actuators with the new TAC direct-coupled actuators.

Describes TAC approved water treatment practices.

Provides charts, equations, and diagrams to assist in the configuration of valve system applications. TOOL-150, valve sizing slide rule may be purchased separately.

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SPECIFICATIONS

Inputs

Control Signal: Two wire, SPST or Triacs. See Figure-1 through Figure-1. Power Input: See Table-1. All 24 Vac circuits are Class 2. All circuits 30 Vac and above are

Class 1.

Connections:

Power, 24 inch (61 cm) long, 18 AWG color coded pigtail leads. Control, 24 inch (61 cm) long, 22 AWG color coded pigtail leads.

Outputs

Electrical:

Stroke, Electronically limited to 93° ±1°.

Torque See Table-1. Duty Cycle 100%. Timing See Table-1.

Mechanical:

Anti-Rotation Bracket,

Standard 9" long x 13/16" wide (229 x 21 mm), included with the actuator. Optional Order AM-752 (4" long x 1-11/16" wide) for mounting the actuator in narrow

spaces.

Universal Mounting Clamps, Two clamps are required for all mounting configurations.

Standard 3/8" to 1/2" (10 to 13 mm) round and square shaft mounting clamps are

included with the actuator. Optional Order AM-753 for 5/8" (16 mm) square and 3/4" to 1" (19 to 25 mm) round damper shafts, two per package.

Minimum Damper Shaft Length,

Standard Damper shaft must be at least 4-5/8" (117 mm) long for standard mounting. Optional Shorter than standard length shafts require the AM-676 shaft extension

(order separately).

Position Indicator, Scale numbered from 0 to 95°, provided for position indication. Nominal Damper Area, Actuator sizing should be done in accordance with damper

manufacturer’s specifications. Direction of Rotation, Clockwise or counterclockwise rotation determined by actuator mounting. The zero (0) position on the position indicator is the normal or spring return position.

Environment

Ambient Temperature Limits:

Shipping & Storage, -40 to 160°F (-40 to 71°C).

Operating, -25 to 140°F (-32 to 60°C). Humidity: 15 to 95% RH, non-condensing. Location: NEMA 1. NEMA Type 4 (IEC IP56) with customer supplied water tight conduit

connectors.

Agency Listings

UL 873: Underwriters Laboratories Inc. listed (File # E9429 Category Temperature-

Indicating and Regulating Equipment). CUL: UL Listed for use in Canada by Underwriters Laboratories. Canadian Standards C22.2 No. 24-93. European Community: EMC Directive (89/336/EEC). Low Voltage Directive (72/23/EEC). Machinery Directive (89/392/EEC). Safety Directive (92/59/EEC). See Table-1 for specific models.

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Table-1 Model Chart.

Part

Number

MA40-7173

MA40-7171

This model is in conformance with CE standards.

Voltage Hz Watts

24 Vac ±20%

240 Vac ±10% 7.4 11.8 9.5

Actuator Power Input Approximate 93° Rotation

50 60

Running Holding Minimum Maximum Stall

5.4 9.6 4.1

ACCESSORIES

AM-674 Weather Shield - steel AM-676 Universal Shaft Extension, approximately 9-1/2" (242 mm) long for use on 3/8" to

11/16"(10 to 17 mm) Round Shafts, 3/8" to 9/16" (10 to 14 mm) square shafts (AM-753 clamps required)

AM-751 Standard Anti-rotation Bracket 9" long x 13/16" (229 x 21 mm) wide (229 x 21 mm),

included with actuator

AM-752 Optional Anti-rotation Bracket 4" long x 1-11/6" wide (102 x 43 mm), for narrow

spaces

AM-753 Optional Universal Mounting Clamps for 5/8"(16 mm) square shaft, 3/4" and 1"

(19 to 25 mm) round shafts (two per package)

AM-754 Standard Universal Mounting Clamps for 3/8" to 1/2" (10 to 13 mm) round and

square shafts, two included with actuator AM-756 Metric Conduit Adaptor M20 x 1.5 to 1/2" NPT (two per package) TF-711-02 1/2" Sealtight Water Tight Conduit Connector (straight) TF-713-02 1/2" Sealtight Water Tight Conduit Connector (90°) X-5521 1/2" Pipe Plug, included with actuator

Timing in Seconds

@ 70° F (21° C)

for Rated Torque

145 150 (17) 450 (51)MA40-7170 120 Vac ±10% 7.2 11.4 9.4

Output Torque Rating

lb.-in. (N-m)

TYPICAL APPLICATIONS (wiring diagrams)

120 Vac

1 SPST or Triac Controller.

2 Unused conduit port must remain plugged with a water tight pipe

plug as shipped from factory to maintain NEMA Type 4 or IP56 rating.

3 Ground wire may be Green on some models.

Figure-1 Typical MA40-7170 Wiring Diagram.

240 Vac

1 SPST or Triac Controller.

Black

White

Brown

Light Blue

MA40-7170

GRDGreen/Yellow

MA40-7171

GRDGreen/Yellow

2 Unused conduit port must remain plugged with a water tight pipe

plug as shipped from factory to maintain NEMA Type 4 or IP56 rating.

3 Ground wire may be Green on some models.

Figure-2 Typical MA40-7171 Wiring Diagram.

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24 Vac

1 SPST or Triac Controller. Multiple MA40-7173 actuators may be powered

by a single 24 Vac transofrmer.

2 Unused conduit port must remain plugged with a water tight pipe plug as

shipped from factory to maintain NEMA Type 4 or IP56 rating.

3 Ground wire may be Green on some models.

Figure-3 Typical MA40-7173 Wiring Diagram.

Black

Black/Blue

24H

24G

GRDGreen/Yellow

MA40-7173

INSTALLATION

Inspection Inspect the package for damage. If damaged, notify the appropriate carrier immediately.

If undamaged, open the package and inspect the device for obvious damage. Return damaged products.

Requirements • Job wiring diagrams

• Tools (not provided)

– Socket wrench 1/2 inch, used for universal mounting clamp nuts – Open-end wrench 10 mm, used for installing AM-676 universal shaft extension – Slotted screwdriver, used for installing anti-rotation brackets – Allen wrench 3/16", used for manual override

• Appropriate accessories

– Water tight 1/2 inch conduit seals TAC part number TF-711-02 or T&B #5332

(straight, TAC part number TF-713-02 or T&B #5352 (90°), or equivalent.

– Water tight 1/2 inch flexible conduit (e.,g. Anaconda: Sealtight) or 20 mm flexible

water tight conduit when using AM-756 metric conduit adapter with appropriate metric water tight seals.

– Water tight 1/2 inch flexible conduit (Anaconda: Sealtight) or 20 mm flexible water

tight conduit when using AM-756 metric conduit adapter

– Two #8 1/2 inch (13 mm) sheet metal screws for mounting anti-rotation bracket

(optional)

• Training: Installer must be a qualified, experienced technician

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Precautions General

Warning:

• Electrical shock hazard! Disconnect the power supply (line power) before and during

installation to prevent electric shock and equipment damage.

• Make all connections in accordance with the wiring diagram and in accordance with

national and local electrical codes.

Caution:

• Avoid electrical noise interference. Do not install near large contactors, electrical

machinery, or welding equipment.

• Avoid locations where excessive moisture, corrosive fumes, vibration, or explosive

vapors are present.

Federal Communications Commission (FCC)

Note:

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in residential installations. This equipment generates, uses, and can radiate radio frequency energy and may cause harmful interference if not installed and used in accordance with the instructions. Even when instructions are followed, there is no guarantee that interference will not occur in a particular installation. If this equipment causes harmful interference to radio or television reception— which can be determined by turning the equipment off and on—the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment to an outlet on a circuit different from that to which the receiver

is connected.

• Consult the dealer or an experienced radio/television technician for help.

Use copper conductors only.

Location

Canadian Department of Communications (DOC)

Note:

This class B digital apparatus meets all requirements of the Canadian InterferenceCausing Equipment Regulations.

Cet appareil numerique de la classe B respecte toutes les exigences du Reglement sur le material broilleur du Canada.

European Standard EN 55022

Warning:

this product may cause radio interference in which case the user may be required to take adequate measures.

Caution:

This is a class B (European Classification) product. In a domestic environment

• To maintain NEMA Type 4 rating, use water tight 1/2" flexible conduit only, with 1/2"

conduit connector of the water tight type, TAC part number TF-711-02 or T&B #5332 (straight), TAC part number TF-713-02 or T&B #5352 (90°), or equivalent.

• For metric conduit applications using AM-756 conduit adapters, use the appropriate

metric water tight seals to maintain compliance with IP56 or NEMA Type 4 rating.

• Use a water tight 1/2" pipe plug in any unused actuator conduit ports and seal with

water tight tape to stay in compliance with NEMA Type 4 or IP56 rating. Use TAC part number X-5521, Grinnell #8700159257 (black), Grinnell #8700159851 (galvanized), or equivalent. Actuators with unused conduit ports are shipped with the unused port plugged.

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Mounting Mount the TAC DuraDrive Actuator directly on the damper shaft in locations that clear the

maximum dimensions of the actuator case and allow the actuator to be mounted flush to the surface of the terminal box and perpendicular to the damper shaft.

Note:

Some terminal boxes have sheet metal screw heads or other protrusions near the damper shaft. In these cases, a spacer or shim may be added under the mounting tab of the actuator to make the actuator perpendicular to the shaft.

Damper Actuator Sizing

Correct sizing of the actuator is necessary for proper control of dampers. The area of damper that can be controlled by a given actuator is dependent upon the type of damper, the quality of the damper, the pressure drop across the damper in the closed position, and the velocity of the air flow through the damper. To obtain actual damper torque requirements, contact the damper manufacturer.

Damper Shaft Sizing

Use the “Long Damper Shaft” mounting instructions if the damper shaft is at least 4-5/8" (117 mm) long.

Use the “Short Damper Shaft” mounting instructions if the damper shaft is shorter than 4-5/8" or the area around the damper shaft is too narrow to allow standard mounting, as described in the “Long Damper Shaft” mounting section. See Figure-4 for minimum shaft length.

Min. 4-5/8" (117 mm)

Figure-4 Long Damper Shaft Dimensions.

Caution:

The MA40-717X actuator is not designed to be used on aluminum damper shafts, solid steel shafts smaller than 1/2" diameter round or 1/2" square, or hollow steel shafts smaller than 3/4" round. The actuator can produce up to 450 in-lbs (51 N-m) maximum stall torque, which could result in the actuator snapping off an aluminum damper shaft or an improperly sized steel damper shaft. Refer to Table-2 for nominal damper shaft sizes.

Table-2 Steel Damper Shaft Specifications.

Damper Shaft Shape Damper Shaft Type O.D. (Nominal)

Solid bar 1/2" to 1" 0

3/4" 0.375

13/16" 0.683

Round

Square Solid bar 1/2" to 5/8" 0

Damper shaft sizes over 1/2" (13 mm) O.D. require AM-753 universal mounting clamps.

Hollow tubing

27/32" 0.626

7/8" 0.805

15/16" 0.808

I.D. (Maximum)

1" 0.930

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Mounting the Actuator for Clockwise or Counterclockwise Spring Return

The zero (0) position on the position indicator is the normal or spring return position. When the actuator is mounted with the “R” side facing the installer and the control signal increases the actuator will rotate in the counterclockwise direction. When the actuator is mounted with the “L” side facing the installer and the control signal increases the actuator will rotate in the clockwise direction.

Long Damper Shaft

1. Move the damper to its normal position. Verify the controller action is set to match the damper application. See TYPICAL APPLICATIONS (wiring diagrams).

– For normally closed damper, when damper is closed the actuator position indicator

should be at 0°. When damper is open the actuator position indicator should be at 90°.

– For normally opened damper, when damper is open the actuator position indicator

should be at 0°. When damper is closed the actuator position indicator should be at 90°.

Note:

The actuator comes equipped with two AM-754 universal mounting clamps. For damper shafts larger than 1/2" (13 mm) in diameter, the AM-753 universal mounting clamps are required (order separately). The AM-753 clamps accommodate round shaft sizes ranging from 3/4" to 1" (19 to 25 mm) or 5/8" (16 mm) square shafts.

2. Slide the actuator over the shaft and into its desired final mounting position.

– If the damper shaft rotates clockwise to the closed position, mount the actuator with

the side marked “R” facing the installer. See Figure-5.

– If the damper shaft rotates counterclockwise to the closed position, mount the

actuator with the side marked “L” facing the installer. See Figure-6.

3. Hand tighten the nuts on both of the actuator’s universal mounting clamps.

4. Align the actuator at 90° (perpendicular) to the damper shaft. See Figure-7.

5. Slide the anti-rotation bracket pin into the mounting slot on the actuator and drill mounting holes. See Figure-7. For narrow spaces, the AM-752 anti-rotation bracket is recommended (order separately).

6. Attach one side of the anti-rotation bracket to the mounting surface with one of the screws provided. Leave the screw loose so that the bracket can be rotated. See Figure-5 for clockwise or Figure-6 for counterclockwise spring return.

7. Pivot the anti-rotation bracket away from the actuator. See Figure-5 or Figure-6.

8. Loosen the universal mounting clamps, making sure not to move the damper shaft. Rotate the actuator approximately 5° in the direction which would open the damper. See Figure-5 or Figure-6.

9. Tighten all of the universal mounting clamp nuts with a 1/2" socket wrench. Apply 4 to 6 ft-lbs. (5 to 8 N-m) of torque.

10. Manually rotate the actuator toward the full-closed position to apply pressure to the damper seals. See Figure-5 or Figure-6.

11. Pivot the anti-rotation bracket into place and secure the other side of the bracket onto the mounting surface with the other screw provided with the actuator. See Figure-5 or Figure-6.

12. Verify that the damper is in its full-closed position and actuator at 90° (perpendicular) to the damper shaft. See Figure-5 or Figure-6.

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1 Two AM-754 Universal Mounting Clamp Assemblies

are provided with each actuator. Each clamp assembly includes 1 universal mounting clamp and 1 retaining clip. Two Universal Mounting Clamp Assemblies are required for all mounting configurations.

CENTERLINE

Figure-5 Long Damper Shaft Mounting with Clockwise Spring Return for Normally Closed Damper.

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1 Two AM-754 Universal Mounting Clamp Assemblies

are provided with each actuator. Each clamp assembly includes 1 universal mounting clamp and 1 retaining clip. Two Universal Mounting Clamp Assemblies are required for all mounting configurations.

CENTERLINE

Figure-6 Long Damper Shaft Mounting with Counterclockwise Spring Return for Normally Closed Damper.

Actuator Mounting Slot

AM-751 Anti-rotation Bracket

Figure-7 Mounting Anti-rotation Bracket to Actuator.

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Short Damper Shaft

See Figure-8 for installation of actuator using the AM-676 Universal Shaft Extension. Installation requires AM-676 Universal Shaft Extension and AM-753 Universal Mounting Clamps for 3/4" to 1" (19 to 25 mm) shafts, these items must be ordered separately.

1. Loosen the V-clamp nuts on the AM-676 universal shaft extension.

2. Fit the universal shaft extension fully onto the damper shaft. Tighten the universal shaft extension V-clamp nuts with a 10 mm open-end wrench. Apply 4 to 6 ft-lbs. (5 to 8 N-m) of torque.

3. Move the damper to its normal position. Verify the controller action is set to match the damper application. See TYPICAL APPLICATIONS (wiring diagrams).

– For normally closed damper: when damper is closed, actuator position indicator

should be at 0°. When damper is open, actuator position indicator should be at 90°.

– For normally opened damper: when damper is open, actuator position indicator

should be at 0°. When damper is closed, actuator position indicator should be at 90°.

4. Remove the mounting clamps from the actuator and replace them with the AM-753 universal mounting clamps.

5. Loosen the nuts on both of the AM-753 universal mounting clamps on the damper actuator.

– If the damper shaft rotates clockwise to the closed position, mount the actuator with

the side marked “R” facing the installer. See Figure-5.

– If the damper shaft rotates counterclockwise to the closed position, mount the

actuator with the side marked “L” facing the installer. See Figure-6.

6. Assemble the damper actuator onto the universal shaft extension, allowing the extension to slide through the actuator’s universal mounting clamps. Make sure the actuator is 90° (perpendicular) to the damper shaft. Then, hand tighten the nuts on both of the actuator’s universal mounting clamps. See Figure-8

Note:

If the universal shaft extension protrudes excessively above the damper actuator's

top universal mounting clamp:

• remove the damper actuator from the universal shaft extension,

• remove the extension from the damper shaft,

• shorten the universal shaft extension by cutting it to the desired length,

• then proceed to follow mounting instructions.

7. Slide the anti-rotation bracket pin into the mounting slot on the actuator. See Figure-7. For narrow spaces, the AM-752 anti-rotation bracket is recommended (order separately).

8. Position the actuator and bracket in the desired final mounting position on the mounting surface and drill mounting holes. See Figure-8.

9. Attach one side of the anti-rotation bracket to the mounting surface with one of the screws provided. Leave the screw loose so that the bracket can be rotated. See Figure-5 for clockwise or Figure-6 for counterclockwise spring return.

10. Pivot the anti-rotation bracket away from the actuator. See Figure-5 or Figure-6.

11. Loosen the universal mounting clamps, making sure not to move the damper shaft. Rotate the actuator approximately 5° in the direction which would open the damper. See Figure-5 or Figure-6.

12. Tighten all of the universal mounting clamp nuts with a 1/2" socket wrench. Apply 4 to 6 ft-lbs. (5 to 8 N-m) of torque.

13. Manually rotate the actuator toward the full-closed position to apply pressure to the damper seals. See Figure-5 or Figure-6.

14. Pivot the anti-rotation bracket into place and secure the other side of the bracket onto the mounting surface using the other screw provided with the actuator. See Figure-5 or Figure-6.

15. Verify that the damper is in its full-closed position and actuator at 90° (perpendicular) to the damper shaft. See Figure-5 or Figure-6.

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AM-753 Universal Mounting Clamp Assemblies

Actuator

Anti-rotation Bracket (included with actuator)

AM-676 Universal Shaft Extension

Duct

V-clamp

Figure-8 Installation of Universal Shaft Extension.

Wiring Requirements Control and Power Leads

Remove blue plastic thread protectors before installing conduit fittings. See Figure-1 through Figure-1 for typical wiring applications and Table-3 for maximum wire lengths.

Caution:

Half-Wave Rectifier Devices from a Common Transformer

The 24 Vac model contains a half-wave rectifier power supply and must not be

Mounting Surface

1 The AM-676 extends the

damper shaft approximately

Damper Shaft

9" (229 mm).

EN-206 Guidelines for Powering Multiple Full-Wave and

, F-26363, for further information.

Note:

Class 2 control and power lead wiring must be routed separately from line voltage

wiring and any other non-class 2 circuits.

Table-3 Control and Power Wiring Data.

Actuator

Voltage

24 Vac MA40-7173

120 Vac MA40-7170

240 Vac MA40-7171

Part

Number

Maximum Wire Run in ft. (m)

(5% Voltage Drop)

14 AWG 16 AWG 18 AWG

1165

(355)

733

(223)

461

(141)

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CHECKOUT

THEORY OF OPERATION

This procedure is for checking out a normally closed actuator that is typically mounted unpowered. It is possible to mount the actuator with power applied for special applications.

Note:

To check out a normally open actuator the procedure is the same as below, except

the initial position is open and the powered position is closed.

After the entire system has been installed and the actuator has been powered up, the following check can be made for proper system operation. Check for correct operation of the damper while actuator is being stroked.

1. Apply power to the actuator.

2. Set the controller to cause the actuator to drive open.

3. Check to see that the actuator travels to the full-open position.

4. Remove power from actuator to cause the actuator to drive closed.

5. Check to see that the actuator travels to the fully closed position.

Note:

If anticipated damper operation does not occur, verify the Long Damper Shaft or Short Damper Shaft mounting procedures. Also, verify that the controller has the proper action (direct or reverse) to match the damper required operation.

The actuator is, by means of dual mounting clamps, directly mounted onto the damper shaft. The anti-rotation bracket supplied with the actuator prevents lateral movement of the actuator. The damper actuator is not provided with and does not require, any limiting switches, but is electronically protected against overloading.

The angle of rotation is electronically limited to 93° ±1°. When reaching the damper or actuator end position, the motor stops automatically. The position of the actuator is indicated by means of scale reading 0 to 95°.

MAINTENANCE

FIELD REPAIR

Regular maintenance of the total system is recommended to assure sustained optimum performance. The MA40-717X actuator is maintenance free.

None. Replace with functional actuator.

Page 14

DIMENSIONAL DATA

(102)

Figure-9 dimensions are in inches (mm).

(102)

1-27/64"

(36)

10-27/32" (275)

Figure-9 MA40-717X Damper Actuator.

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F-26742-2

TAC

1354 Clifford Avenue P.O. Box 2940 Loves Park, IL 61132-2940

www.tac.com