T.A.C. MA40-704X, MA4X-707X, MA4X-715X User Guide

Page 1

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 MA40-704X, MA4X-707X and MA4X-715X series spring return actuators are used for the on-off, fail safe control of dampers and valves in HVAC syste ms.

Features

MA40 -704X Series,

MA4X-707X Series,

MA4X-715X Series

TAC DuraDrive Series Spring Return

Two-Position Actuators

General Instructions

MA40-707X

MA40-715X

• Two-position actuator controlled by SPST controller

• 133 lb-in (15 N-m), 60 lb-in (7 N-m), and 35 lb-in

(4 N-m) torque models

• 24 Vac/DC, 120 Vac, and 230 Vac models

• Rugged die cast housings rated for NEMA 2 / IP54

• Overload protection throughout rotation

• Optional built-in auxiliary switch to provide for

interfacing or signaling

• Provides 95° of rotation

• Visual position indicator provided

• Provides true mechanical clockwise or

counterclockwise spring return operation for reliable fail safe application and positive close-off in air tight damper applications

• Direct mount to round or square damper shafts

• Rotation limiting available

• MA4X-7153 series actuators can be double-

mounted (gang mounting) to accommodat e high torque application requirements

MA40-704X

MA41-707X MA41-715X

• Five year warranty

• MA41-707X-XXX and MA41-715X - XXX e q ui pped

with manual override

Page 2

Applicable Literature

F-Number Description Audience Purpose

Describ es the globe valve actuator/linkage assembly’s features, specif ications, and possible applications . Provides step-by-step mounting instructions.

Describ es the actuator/linkage/ball valve assembly’s featur es, speci fications, and possible applications. Provides step-bystep mounting instructions.

Provides actuator specifications and part number cross referencing of phased out actuator s wit h the new TA C di rect- cou pled actuators.

Provides part number cross referencing of phased ou t globe and ball valve assemblies with the new TAC directcoupled actuators.

Descri bes TAC approved water tr ea tm en t 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.

F-26750

F-26751

F-26646

F-26752

F-26080 EN-205 Water System Guidelines

F-13755 CA-28 Control Va lve Sizing F-11080 Valve Selection Chart Water

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

MX40-6XXX-2XX, MX4X-7XXX-2XXSeries Actuator/Linkage Assemblies General Instructions

VX-2000 Series Ball Valve Assembly Insta llations Instructions

MX4X-7XXX, MX40-6XXX Series TAC DuraDrive Actuator Selection Guide

VX-2000, VX-7000 Series Ball/Linked Gl ob e Linked Valve A s se mb li es Actuator/Linkage Assemblies Selection Guide

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

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

Page 3

SPECIFICATIONS

Actuator In puts

Control Signal: On-off, spring return. SPST control contacts or Triacs (500 mA rated). Power Input: See Ta ble-1. All 24 Vac cir cuits are Cl ass 2. All circuits 30 Vac and above are

Class 1. Connections: 3 ft. (91 cm) appliance cables, 1/2 in. conduit connector. For M20 Metric

conduit, use AM-756 adaptor.

Actuator Outputs

Electrical:

Auxiliary Switches,

MA4X-715X-502 and MA4X-7 07X-502 Two SPDT 7A (2.5A) @250 Vac, UL listed;

one fixed @ 5° and one adjustable 25 to 85°. MA40-7040-501 and MA40-7041 -501 One SPDT 6A (1.5A) @250 Vac, UL listed; adjustable 0 to 95° (0 to 1 scale). MA40-7043-501 One SPDT 6A (1.5A) @24 Vac, UL li sted; adjustable 0 to 95° (0 to 1 scale).

Mechanical:

Stroke, Angle of rotatio n 95° ± 5 ° maximum. Adjustabl e 30° to 95° with AM-689 install ed

on MA4X-715X or MA4X-707X series. Stroke limiter is standard on MA40-704X series.

Damper Shaft Clamp,

MA40-704X The factory installed universal clamp is used for shafts up to 5/8”

(15 mm) di ameter or up to 1/ 2" (13 mm) squa re. AM -710 acc esso ry clamp is requ ired when mounting actuat ors to shafts up t o 3/4" (19 mm) diameter or up to 1/2" (13 mm) square. MA4X-715X or MA4X-707X The fact ory installed universal clamp is used for shafts up to 3/4" (19 mm) diam eter or up to 1/2" (13 mm) square. AM-687 accesso ry clamp is required when mounting actuators to shafts up to 1.05" (27 mm) in diameter or up to 5/8" (15 mm) square.

Position Indicator, Visual indicator.

MA4X-715X and MA4X-707X, -5 to 90° MA40-704X, 0 to 1 (0 is spring return position).

Nominal Damper Area, Actuator sizing should be done in accordance with damper

manufacturer’s specification. Direction of Rotation, Clockwise or counterclockwise rotation determined by actuator mounting. Manual Override, MA41-707X and MA41-715X rotation is adjustable from -5 using manual override crank.

(-5° is spring return position).

to 85o

Environment

Ambient Temperature Limi ts:

Shipping & Storage, -40 F to 16 0°F (- 40 to 71°C ) . Operating, -22 to 140°F (-30 to 60°C).

Humidity: 15 to 95% RH, non-condensing. Location:

MA4X-715X and MA4X-707X, NEMA 1 (IEC IP30). NEMA 2 (IEC IP54) with conduit

connector in the down position.

MA40-704X, NEMA 2 (IEC IP54) no restrictions.

Agency Listings

UL 873: Underwriters Laboratories (File # E9429 Categor y Tem perature-Indicating and

Regulating Equipment). CUL: UL Listed for use in Canada by Underwriter s Laboratories. Canadian Standards C22.2 No. 24.

European Community: EMC Directiv e (89/336/ EEC). Low Volta ge Direct ive (72/23/ EEC). Australia: Thi s product meet s requirem ents to bear the C-Tick Mark ac cording t o the terms

specified by the Com mu nications Authority under the Radiocommunications Act 1992.

Page 4

Table-1 Model Chart.

Approximate

Actuator Power Input

Part Numbers

Voltage

VA Watts

Running

50 Hz

60 Hz

50 Hz60

Amps

Holding

50 Hz 60 Hz

MA40-7153 MA40-7153-

502 MA41-7153 No Yes MA41-7153-

24 Vac

± 20%

22-30

Vdc

9.8 9.7 7.5 7.5 0.29 2.8 2.8

502 MA40-7150 MA40-7150-

502 MA41-7150 No Yes

120 Vac

±10%

11.7 10.0 8.8 8.4 — 3.6 5.0

MA41-7150502

MA40-7151 MA40-7151-

502 MA41-7151 No Yes

230 Vac

±10%

15.5 10.6 9.5 8.5 — 4.6 3.3

MA41-7151502

MA40-7073 MA40-7073-

502 MA41-7073 No Yes MA41-7073-

24 Vac

± 20%

22-30

Vdc

4.8 4.8 3.2 3.2 0.13 0.8 0.8

502 MA40-7070 MA40-7070-

502 MA41-7070 No Yes

120 Vac

±10%

10.7 5.6 4.2 3.6 — 2.0 1.2

MA41-7070502

MA40-7071 MA40-7071-

502 MA41-7071 No Yes

230 Vac

±10%

17.0 8.0 5.1 4.0 — 2.7 1.4

MA41-7071502

MA40-7043 24 Vac MA40-7043-

501 MA40-7040

MA40-7040501

MA40-7041 MA40-7041-

501

Timing was measured with no load applied to the actuator.

De-rating is required at low temperatures.

One adjustable from 25 to 85° rotation and one set to operate @ 5° fixed.

One adjustable from 0 to 95° rotation (0 to 1 scale).

± 20%

22-30

Vdc

120 Vac

±10%

230 Vac

±10%

4.4 4.4 2.9 2.9 0.11 0.8 0.8

6.4 4.3 3.8 3.4 — 1.6 1.2

5.8 4.6 4.1 3.9 — 1.5 1.2

Auxiliary

Switch

Two

No No

Two

No No

Two

No No

Two

No No

Two

One

No No

One

No No

One

Timing in

Seconds @ 70°

Powered

(21°C)

Spring Return

<190 <30 133 (15) 350 (40)

<80 <40 60 (7) 2 50 (28)

<50 <26 35 (4) 1 50 (17)

Output Torq ue

Rating

lb-in (N-m)

Minimum

Maximum

Stall

Manual

Override

No No

Yes

No No

Yes

Page 5

ACCESSORIES For use with MA4X-7XXX:

AM-671 Universal Mounting Bracket, AM-693 is required AM-672 Universal Mounting Bracket, AM-693 is required AM-673 Mounting Bracket AM-674 Weathe r Shield AM-675 Base Mounting Plat e for AM-674 AM-676 Unive rsal Shaft Extension AM-714 Weather Shield (polycarbonate) AM-756 Metric Conduit Adapter M20 x 1.5 to 1/2" NPT AM-761 7-inch Anti-rotation Bracket AM-762 9-inch Anti-rotation Bracket

For use with MA40-7043:

AM-709 Position Indicator and Stroke Limiter AM-710 Universal Clamp for up to 3/ 4" diameter shafts AM-711 Crankarm for up to 1/ 2" round sh aft AM-712 Crankarm Adapter Kit AM-713 Mounting Bracket for Honeywell Mod IV, M6415

type ac tua to r s and ne w ins tal la tions

AM-715 Crankarm Adapter Kit for Honeywell Mod IV,

M6415 type actuators and new installations

For use with MX4X-7073, MX4X-7153

AM-686 Damper Position Indicator AM-687 Universal Clamp for up to 1.05" (27 mm) diameter

shafts AM-688 Replacement Universal Clamp AM-689 Rotation Li miter AM-690 Crankarm for round shafts up to 3/4" (19 mm) AM-691 Crankarm for jackshafts up to 1.05" (27 mm) AM-692 V-bolt Kit for AM-690 and AM-691 Crankarm AM-693 Damper Linkage Kit AM-758 Short "U" Mounting Br acket AM-759 Tall "U" Mounting Bracket AM-760 Slotted "L" Mounting Brack et AM-763 1/8" Hex C rank for Manual Override

Page 6

TYPICAL APPLICATIONS (wiring diagrams)

Figure-1 through Figure-3 illustrat e typi cal wiring diagrams for spri ng return floating actuators. See Table-1 for model selection.

24 Vac Transformer

or 22-30 Vdc

Line

Volts

SPST Control Contact

120 Vac or

230 Vac

Voltage Wire 1 Wire 2

120 Vac White Black

230 Vac Blue

L1 N L2 H

Wire No. 1

Wire No. 2

Blk

Red

Brown

Com

Hot (+DC)

Grn/Yel

Com

Hot

Grn/Yel

Optional Auxiliary

MA4X-7153

MA4X-7073 MA4X-7153-502 MA4X-7073-502

MA4X-7150 MA4X-7151 MA4X-7070

MA4X-7071 MA4X-7150-502 MA4X-7151-502 MA4X-7070-502 MA4X-7071-502

MX40-707X-502 and MX40-715X-502 units manufactured prio r to the date code 0141 (October 6, 2001) u s ed the following color coding for the auxiliary switches:

Auxiliary Switch 1

Orange: Fixed auxiliary switch common (com) Yellow: Fixed auxiliary switch normally closed (NC) Violet: Fixed auxiliary switch normally open (NO)

Auxiliary Switch 2

Orange/w hite: Adjustable auxiliary switch common (com) Violet/white: Adjustable auxiliary switch nor mally closed (NC) Yellow/white: Adjustable auxiliary switch normally open (NO)

The label information on these units is incorrect. If replacing these units, the auxiliary switch operation of the replacement actuator will b e per the product label.

1 Provide overload protection and disconnect as required.

2 Actuators mounted on separate shafts may be wired in

3 For end position indication, interlock control, fan startup,

Switches

Org Vio

Yel

Org/Wht

Vio/Wht

Yel/Wht

parallel. All actuator black wires are connected to the transformer common and all red wires are connected to the hot lead. Power consumption must be observed.

etc., MA4X-715X-502, and MA4X-707X-502 models incorporate two built-in auxiliary switches.

Com

Aux Switches

MA4X-7XXX-502

Aux Switch 1

25 to 85°

Adjustable

Aux Switch 2

5° Fixed

Figure-1 Typical Wiring Diagram for 24 Vac Basic and Double Auxi liary Switch Models.

Page 7

120 Vac or

230 Vac

L1 N L2 H

Wire No. 1 Wire No. 2

Green/Yellow

Neutral

Hot

MA40-7040 MA40-7041

120 Vac or

230 Vac

Auxiliary Switch 1

Figure-2 Typical Wiring Diagram for 120 Vac or 230 Vac Basic and Single Auxil iary Switch Models.

Line

Volts

Line

Volts

SPST Control Contact

Auxiliary Switch 1

24 Vac

SPST Control Contact

24 Vac

L1 N L2 H

Wire No. 1 Wire No. 2

Orange

Violet

Yellow

Black

Red

Black

Red

Orange

Violet

Yellow

Neutral

Hot

Green/Yellow

COM.

N.C.

N.O.

Common

Hot

Green/Yellow

Common

Hot

Green/Yellow

N.C. N.O.

MA40-7040-501 MA40-7041-501

0 to 1 Scale

MA40-7043

(1) (2)

MA40-7043-501

Adjustable

0 to 1 Scale

Adjustable

1 Provide overload protection and disconnect as

required.

2 Actuators may be wired in parallel. Power

consumption must be observed.

3 For end position indication, interlock control, fan

startup, etc., MA40-704X-501 model incorporates one built-in auxiliary switch. See Specifications section for details.

Voltage Wire 1 Wire 2

120 Vac White Black 230 Vac Light Blue Brown

1 Provide overload protection and disconnect as

required.

2 Actuators may be wired in parallel. Power

consumption must be observed. Actuator may also be powered by 24 Vdc.

3 For end position indication, interlock control, fan

startup, etc., MA40-7043-501 model incorporates one built-in auxiliary switch. See Specifications section for details.

Figure-3 Typical Wiring Diagram for 24 Vac Basic and Single Auxiliary Switch Models.

INSTALLATION Inspection Inspect the pack age 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):

– #8 sheet metal screws – 10mm open end wrench or socket wrench – 7/16 inch, open end wrench or socket wrench – 1/8 inch, allen wrench – Appropriate screwdriver(s)

• Appropriate accessories

• Training: Installer must be a qualified, experienced technician

Page 8

Precautions General

Warning:

• Electrical s hock hazard! Disc onnec t the power su ppl y (l ine power ) bef or e inst alla tion to

prevent electric shock and equipment damage.

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

with national and loc al el ectrical codes.

Caution:

• Avoid electrical noise interference. Do not ins tal l near large contactors, electrical

machinery, or welding equipment.

• Do not drill ho les i n actuat or body. S ix pre -dril led h ole s are l ocated on ea ch side , un der

the label, to accept #10-24 thread-forming screws for mounting accessories.

Use copper conductors only.

Caution:

override.

The MX41-707X and MX41-715X actuators are equipped with a manual

• The manual override is to be used only when power is not applied to the unit.

• If the universal cl am p is not set to 0° on the position indicator, manually wind the

actuator in the dire ction indicated with hex wrench f rom -5° to 0° and lock with a screwdriver.

• When operating manual override, back off 5° from ful l open mecha nical stop to ensu re

proper release.

• Do not attempt to use t he manu al over ride wi th act uators mounted in tandem . Damage

to the gear train may occur.

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 limit s 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 interfer ence if not installed and used in accordance with the instruct ions. Even when instructions are followed, there is no guarantee that interference will not occur in a particular—Whi ch 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 relocat e the r eceiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment to an outlet on a ci rcui t differ ent fro m that to whic h the receive r

is connected.

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

Canad i an Department of Comm unica t i ons (DOC)

Note:

This Class B digital apparatus meets all requirement s of t he Canadian InterferenceCausing Equipment Regul ations.

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

European Standard E N 55022

Warning:

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

Location

Caution:

explosive vapor s are present.

This is a Class B digital (Eur opean Classification) product. In a domestic

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

Page 9

Mounting

Caution:

To remain in NEMA 2/IP54 compli ance, the MA4X-715X and MA4 X-707X series

actuators should be mounted with conduit end down.

Mount the TAC DuraDrive Actuator directly on the damper shaft in locations that clear the maximum dimensi ons of the actuator cas e 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 anti-rotation bracket 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 acr oss 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 manufact urer.

Damper Shaft Sizing

Use the “Long Damper Shaft ” mounting instructions if the damper shaft is at least 3-1/2" (90 mm) long.

Use the “Short Damper Shaft” mounting instructions if the damper shaft is shorter than 3-1/2" (90 mm) or the area around the damper shaft is too narrow to allow standard mounting, as described in the “Short Damper Shaft” mounting section.

MA40-704X Series Installation

Note:

The MA40-704X series actuator comes equipped with st andard universal mounting clamp. For damper shafts larger than 5/8" (16 mm) in diameter, the AM-710 universal mounting clamp is r equired (order separately). The AM-710 clamp accommodates shafts sizes up to 3/4" (19 m m) diameter shafts.

Long Shaft

Min. 3 1/2" (90 mm)

3/8" to 3/4" Diameter (10 mm to 20 mm) 3/8" to 1/2" Square (10 mm to 13 mm)

Move the damper to its normal position. Verify the controller action is set to match the damper application.

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°.

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°.

Short Shaft

Min. 3/4" (20 mm)

A - Left

Shaft Rotates

Clockwise

To Open

This step determines shaft rotation. Linkage may change damper direction.

A - Right

Shaft Rotates

Counterclockwise

To Open

Page 10

B - Left - Long Shaft

niversa

ounting clamp

Retaining clip

"L" Marker

B - Right - Long Shaft

"R" Marker

1. Assemble mounting clamp.

2. Assemble retaining clip.

3. Place actuator over shaft.

4. Hand tighten clamp nuts.

Correct clamp mounting

position if actuator is

in normal spring

return position

(before preload)

niversa

ounting clamp

Retaining clip

B - Left - Short Shaft

"L" Marker

1 Universal clamp.

2 Retaining clip.

3 Damper position indicator.

B - Right - Short Shaft

1 Universal clamp.

A. Assemble damper position indicator. B. Assemble retaining clip.

2 Retaining clip.

3 Damper position indicator.

1. Position mounting clamp.

2. Assemble retaining clip.

3. Slide actuator over shaft.

4. Hand tighten clamp nuts.

Correct pointer mounting

position if actuator is

in normal spring

return position

(before preload)

"R" Marker

Page 11

C - Left and Right

#8 S

D- Left

5. Center bracket in slot.

6. Drill two holes.

7. Start one screw.

8. Swing bracket down.

Universal Bracket in the Slot

Center the

1/2 1/2

x 1

x 2

heet Meta

cre

Centerline

D- Right

Centerline

0°

5°

0°

5°

9. Loosen clamp nuts.

10. Check that the shaft is in full zero position.

11. Swing actuator

5° in the direction of travel. Do not move shaft.

12. Tighten clamp nuts to 4 to 6 lb-ft (5.4 to 8.2 N-m) of torque.

13. Move bottom of actuator back into position.

14. Pivot bracket back into position.

Page 12

E- Left

E - Right

1 .8 .6 .4

x 2

15. Tighten bracket screws.

Correct clamp mounting

position

(after 5˚ preload)

MA4X-707X and MA4X-715X Series Installation

Caution:

on each side, under the label, to accept #10-24 thread-forming screws for mounting accessories.

Note:

universal mount ing clamp installed. For dam per shafts larger than 3/4" (19 mm ) i n diameter, the AM-687 universal mounting clamp is requi red (order separately). The AM-687 clamp accommodates round shaft sizes up to 1.05" (27 mm) in diameter or 5/8" (16 mm) square shafts.

Do not drill additiona l holes i n the actua tor body. Six pre- drille d holes are located

The MA40-707X and MA40-715X ser ies actuators come equipped wit h standard

Caution:

The MA41-707X and MA41-715X act uators are equipped with a manual

override.

• The manual overrid e to be used only when power is not applied to the unit.

• If the universal clamp is not set to 0° on the position indicator, manually wind the

actuator in the dir ection indicated with hex wrench from -5° to 0° and lock with a screwdriver.

• When operating manual over ride, back off 5° from full open mechanical stop to ensure

proper releas e.

• Do not attempt to us e the manual over ride with act uator s mount ed in t andem. Dam age

to the gear train could occur.

• Using power tools to adj ust the manual override will cause dama ge to the gears.

• To unlock manual override without power, crank the manu al override in the direction

indicated a minim um of 5°.

Page 13

Long Shaft

Short Shaft

Min. 3 1/2" (90 mm)

3/8" to 3/4" Diameter (10 mm to 20 mm) 3/8" to 1/2" Square (10 mm to 13 mm)

Move the damper to its normal position. Verify the controller action is set to match the damper application.

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°.

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°.

A - Left

Shaft Rotates

A - Right

Clockwise

To Open

This step determines shaft rotation. Linkage may change damper direction.

For MA41-707X and MA41-715X only (manual override).

For MA40-707X and MA40-715X, proceed to step C.

Min. 3/4" (20 mm)

Shaft Rotates

Counterclockwise

To Open

If position indicator does not point to zero:Unlock the actuator.

Manual Override

Fully engage hex wrench into manual override before winding.

Caution: Do not crank the manual

override if power is applied to the actuator.

Insert hex wrench into manual override.

0°

Crank the actuator so the indicator points to

Lock the actuator.

LOCK

Unlock

Page 14

C - Left

sal

- Long Shaft

niver

ounting clamp

Retaining clip

For MA40-707X and MA40-715X actuators

-5

Correct clamp mounting

position if actuator is

in normal spring

return position

"L" Marker

C - Right - Long Shaft

1. Assemble mounting clamp.

2. Assemble retaining clip.

3. Place actuator over shaft.

4. Hand tighten clamp nuts.

-5

Correct clamp mounting

position if actuator is

locked with 5° preload.

"R" Marker

niversa

mounting clamp

Retaining clip

-5

C - Left - Short Shaft

"L" Marker

1 Universal clamp.

2 Retaining clip.

3 Damper position indicator.

For MA40-707X and MA40-715X actuators:

-5

Correct pointer mounting

position if actuator is

in normal spring

return position

C - Right - Short Shaft

A. Assemble damper position indicator. B. Assemble retaining clip.

1. Position mounting clamp.

2. Assemble retaining clip.

3. Slide actuator over shaft.

4. Hand tighten clamp nuts.

For MA41-707X and MA41-715X actuators:

"R" Marker

1 Universal clamp.

2 Retaining clip.

3 Damper position indicator.

-5

Correct pointer mounting

position if actuator is

locked at 5° preload.

-5

Page 15

D - Left and Right

Universal Bracket in the Slot

Center the

1/2

x 2

5. Center bracket in slot.

6. Drill two holes.

7. Start one screw. For MA41-707X and MA41-715X actuators, insert and tighten both screws.

8. Swing bracket down (MA40 actuator only).

E- Left E- Right

0°

Centerline

9. Loosen clamp nuts.

10. Check that the shaft is in full zero position.

#8 Sheet Metal

Screw

x 1

Centerline

0°

For MA41-707X and MA41-715X only:

11. Tighten clamp nuts to 8 - 10 ft-lb (11 - 14 Nm). This completes the installation for MA41-704X and MA41-715X.

For MA40-707X and MA40-715X only:

5°

12. Swing actuator

not move shaft.

13. Tighten clamp nuts to 8 - 10 ft-lb (11 - 14 Nm).

14. Move bottom of actuator back into position.

15. Pivot bracket back into position.

5° in the direction of travel. Do

5°

Page 16

F- Left

F- Right

x 2

For MA40-707X and MA40-715X only:

16. Tighten bracket screws.

For MA40-707X and MA40-715X actuators:

-5

Correct pointer position

after mounting.

x 2

-5

For MA41-707X and MA41-715X actuators:

-5

Correct pointer position

after mounting.

-5

The lock on MA41-707X and MA41-715X will release on first power-up.

Page 17

Jackshaft Installation

(MA40-704X Series)

The MA40-704X actua tor is designed fo r use with jackshaf ts up to 3/4" (19 mm) in diameter . In most applicat ions, the MA40-704X actuator may be mounted in the same manner as a standard damper shaft application. If t he jackshaft diameter is larger than 5/8" (16 mm) in diameter, the opti onal AM-710 universal clamp mu st be used.

(MA4X-715X and MA4X-707X Series)

The MA4X-715X and MA4X-707X actuator s are design ed for use with j ackshafts u p to 1.05" (27 mm) in diameter. In most appli cations, the actuat or may be mounted in the same manner as a standard damper sh aft ap plica tion. I f the jac kshaft diamet er is l arger t han 3/ 4" (19 mm) in diameter, the optional AM-687 universal clamp must be used.

Multiple Actuator Mounting

If more t orque is requi red t han one ac tu ator can provi de a s econd ac tuator may be m ounted to the damper shaft , usi ng the AM-673 multiple mounting br acket. See Figure-4.

Multiple actuators may be powered from one transfor m er provided the following rul es are followed:

• The total current draw of the actuators (VA rating) i s les s than or equal to the rating of

the transform er and less than the rating of the control circuit.

• Polarity on the secondary of the transformer is strictly followed.

– All L2 wires from all actuators are connected to the common lead on the

transformer.

– All L1 wires from all actuators are connected to the hot lead.

Caution:

Mixing the L2 and L1 wires on one lead of t he tr ansformer may result in erratic

operation or fail ure of the actuator and/or controls.

Caution:

Do not attempt to use the manual over ride with actuators mounted in tan dem .

Damage to the gear train ma y occur.

Multiple actuators positioned by the same control signal may be powered from multiple transformer s provided the following rule s are followed:

• The transformers are properly sized.

• All L2 wires from all actua tors are tied together and tied t o the negative lead of the

control signal.

Table-2 Power Wiring Color Code.

Part Number L1 L2

MA4X-7XX3

MA4X-7XX3-502

MA4X-7XX0

MA4X-7XXX-502

MA4X-7XX1

MA4X-7XXX-502

Red Black

Black White

Brown Light Blue

Page 18

Figure-4 Mounting Multiple Actuators.

Wiring Requirements Control and P ower Leads

See Table-3 for power wiring data. Refer to Figure-1 through Fig ure- 3 for typical wiring applications.

Note:

Class 2 control and power lead wiring must be routed separatel y from line voltage wiring and any ot her non- class 2 ci rcui ts. Li ne volt age, auxi lia ry swit ch, and aux ili ary swit ch leads must be connected to a class 1 circuit.

Table-3 Power Wiring Data.

MA-7501-502

AM-673

SIEBE

Actuator Voltag e Part Num be r

24 Vac

22-30 Vdc

24 Vac

22-30 Vdc

24 Vac

22-30 Vdc

MA4X-7153

MA4X-7153-502

MA40-7043

MA40-7043-501

MA4X-7073

MA4X-7073-502

Maximum Wire Run in ft. (m) (5% Voltage Drop)

14 AWG 16 AWG 18 AWG

330 (101) 200 (61) 130 (40)

1100 (335) 700 (213) 440 (134)

600 (183) 500 (152) 254 (77)

Page 19

Auxiliary Switches The MA40-704X-501 seri es actuators include one built-in SPDT auxiliary switch which can

be used for interfac ing or si gnali ng (e.g. , for fan star t-up) . The switch is adjustab le between 0° and 95° of rotation (0 to 1 scale).

The MA4X-715X-502 and MA4X-707X-502 series actuators include two built-in SPDT auxiliary switches which ca n be used for inte rf acing or signaling (e.g., for f an start-up). The switch posi tion near th e nor mal (s pring retur n) posi tion is fixe d at 5°. The other i s adj ustabl e between 25° and 85° of rotation.

Adjusting the Switching Point

Refer to Table-4 for auxiliary switch rating.

Adjusting the switching point for MA40-704X-501

1. The actuator must be in its normal (spring return) position.

2. Use a flat screw drive r to rotate t he switch poi nter until it is at the de sired swit ch position on the 0 to 1 scale.

Adjusting the switching point for MA4X-715X-502 or MA4X-707X-502

1. The actuator must be in its normal (spring return) position.

2. Insert a 1/8" allen wre nch into the hex hole locat ed in the cent er of the adjus table swit ch pointer.

3. Rotate the wrench until the switch point er i s at t he desired switch positio n in degr ees, from 25 to 85°.

Table-4 Auxiliary Swit ch Rating.

Part Number Voltage Resistive Load Inductive Load

MA40-7043-501 24 Vac 6A 1.5A MA40-7040-501

MA40-7041-501 MA4X-707X-502 MA4X-715X-502

250 Vac 6A 1.5A

250 Vac 7A 2.5A

Rotation Limitation Rotation Limitation for MA40-704X Series

The Stop Block is used in conj unction with the tab on the universal clamp or the AM-709 position indicator. In order to functi on properly, the clamp or indicat o r must be mounted correctly.

The Stop Block contr ols the rotational output of the MA40-704X and MF40-704X-501 actuators. It is used in applicati ons where a damper has a desi gned rotation th at is less than 90°, for example with a 45° or 60° rotating damper.

1. Determine the amount of damper rotation required. The actuator stop block provides limited rotation from 40° to 95°.

2. Loosen t he screw securing the stop block to the actuator.

Note:

The actuator is shipped with the Stop Block mounted to the “L” side. If the damper application re quires the “R” si de face th e instal ler , simply remove the St op Block and sc rew and move it to the new location.

3. Slide the st op block into position, so that its edge lines up with the degree graduation on the actuator face which corresponds with the requir ed rotation. See Figure-5.

4. Secure the stop block in place.

5. Test the dam per rotation by applying power. Re-adjust if necessary.

Page 20

Figure-5 Adjusting Stop Block for Limited Rotation.

Rotation Limitation for MA4X-715X and MA4X-707X Series

The AM-689 rotat ion lim iter is used in c onj uncti on with the t ab on the u niv ersal c lamp or t he AM-686 position indicator which comes with the AM-689. In order to function properly, the clamp or indicator must be mounted correctly.

The AM-689 rotation limiter controls the rotational output of the MA4X-715X, MA4X-715X502, MA4X-707X, and MA 4X-707X-502 ac tuators. It is used in app lications whe re a damper has a designed rotation that is less than 90°, for exampl e with a 45° or 60° rotating damper.

1. Det ermine the amou nt of damper rotation required.

2. Locat e the AM-689 rotation limiter on the actuator so that its edge lines up with the degree graduati on on the actuator face which correspo nds with the required rotatio n. See Figure-6.

3. Find the appropriate cross-hai r l ocation through the slot of the rot ation limiter. This is the mounting loca tion for the retaining screw.

4. Pierce thr ough the label material to all ow easy fastening of the retainin g screw.

5. Positi on the rot ation l imiter back to th e desired position, mak ing su re the lo cating “ teeth” on the rotation li m it er are engaged into the locating holes on the actuator.

6. Fasten the rotation limiter to the actuator using the self-tapping screw provided.

7. Test the dam per rotation by applying powe r. Re-adjust if necessary.

Screw secured at these cross hairs.

Angle of rotation is now set at 40.

Figure-6 Securing the AM-689 Rotation Limiter.

Page 21

CHECKOUT

After the entire system has been installed and the actuator has been powered up, the following check can be ma de for prope r system oper ation. Check for correct operation o f the damper while actua tor is being stroked.

1. Apply power to the actuator. Actuator and damper should be driven to their powered position.

2. On the MA4X-7XXX-50X mo dels, check for correct auxil iary switch operation.

3. Break power to the actuator. Actuator and damper should return to their normal, or spring return position.

Table-5 Power Wiring Color Code.

Part Number L1 L2

MA4X-7XX3

MA4X-7XX3-502

MA4X-7XX0

MA4X-7XXX-502

MA4X-7XX1

MA4X-7XXX-502

Red Black

Black White

Brown Light Blue

THEORY OF OPERATION

The actuators are mounted directly onto a damper shaft using a universal V-clamp. When power is applied, the actuator rotates 95 ° to its powered position, at the same time tensing the spring return saf ety mechanism. When power is remove d, the spring returns the actuator to its normal position. The actuators provide true mechanical spring return operation for reliable, positive close-off on air tight dampers.

The MA4X-707X, MA4X-707X-502, MA4X-715X, and MA4X-715X-502 actuators are equipped with a graduated position indicator showing -5° to 90°. The MA40-704X and MA40-704X-501 are equipped with a graduated position indicator showing 0 to 1.

The MA40-704X-501 m odels are provided wi th 1 built in auxili ary switch. The SPDT switch is provided for int erfacing or signaling, for example, fan start-up. The switching function is adjustable between 0° to 95° rotation (0 to 1 scale).

The MA4X-715X-502 and MA4X-707X-502 models are provided with 2 built in auxiliary switches. The SPDT switches are provided for interfacing or signaling, for example, fan start-up. The s wit ching functi on is adjust able on o ne swi tch bet ween 25° to 85° r ot ation and the other switch is fixed at 5°.

The MA41-707X-XXX an d MA41- 715X- XXX actu ators are equi pp ed with a man ual ov errid e mechanism. This al lows the actuator to be manually pos itioned at any point between -5o and 85o. This mechan is m is acces si ble on bo th sid es of the ac tuator and can be used to ensure tight close- offs for valves and d ampers. The m anual overri de should not be used whil e a unit is powered or on units that are mounted in tandem.

MAINTENANCE Regular maintenance of the total system is recomm ended to assure sustained opti m um

performance. The actuators are maintenance free.

FIELD REPAIR None. Replace with a functional actuator.

Page 22

DIMENSIONAL DATA

Figure-7 and Figu re- 8 dimensions are in inches (mm).

3-1/2

(89)

(103)

2-7/64

(53)

Note: These are not through holes. Use hardware supplied in TAC approved AM kits.

Figure-7 MA4X-707X or MA4X-715X S eri es M ounting Dimensions.

10-1/2 (267)

7-1/2 (191)

2-25/64

(61)

6 Holes for

#10-24 Screws

Dimensions shown are in inches (mm).

Page 23

6-51/64 (172)

6-13/64 (157)

13/32 (10)

(25)

(103)

(50)

3 Holes for #10-24 Screws

Dimensions shown

are in inches (mm).

3-21/32 (93)

4-57/64 (125)

Note: These are not through holes. Use hardware supplied in TAC approved AM kits.

47/64 (19)

49/64 (19)

1/4 (6.4)

Figure-8 MA40-704X Series Mounting Dimensions.

3-5/32 (80)

2-13/32

(61)

3-1/2 (62)

Page 24

F-26642-7

TAC

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

www.tac.com