Specification Sheet

ManualsBrandsBarber Colman ManualsDampersProportional Actuator w/ 6-9 Vdc Control Signal (24V)

Application

TAC DuraDrive

Linear Actuators are designed to

mount directly onto two-way or three-way globe valves

without the use of linkages. They provide linear travel

to operate valves from 1/2" to 2" VB-7xxx and

discontinued 1/2" to 1-1/4" VB-9xxx in chilled water, hot

water and steam applications up to 366 °F (186 °C).

Linear spring return actuators provide either two

position, floating or proportional modulation control

(depending on model selection) of valves in HVAC

systems.

Features

• Two position models controlled by SPST controller

• Floating models controlled by SPDT floating

controllers

• Proportional models controlled by 0-3 Vdc, 6-9 Vdc,

0-10 Vdc, 0-20 mAdc, 2-10 Vdc, or 4-20 mAdc.

Control function direct/reverse action is jumper

selectable

• 105 lb force (467 newton) with 1/2" (13 mm) nominal

linear stroke

• 24 Vac, 120 Vac, and 230 Vac models

• Rugged polymer housings rated for up to

NEMA 2/IP54

• Overload protection throughout stroke

• Automatically sets input span to match valve travel

• Compact size to allow installation in limited space

• Manual override to allow positioning of valve and

preload

• Spring return operation

• Direct mount to valves without separate linkage

• Polymer housing rated for plenum use

• Five year warranty

MA51-710x Two Position Series

MF51-7103 Floating Series

MS51-7103 Proportional Series

TAC DuraDrive™ Linear Series

Spring Return Actuator

General Instructions

Mx51-710x

Summary of content (16 pages)

PAGE 1
MA51-710x Two Position Series MF51-7103 Floating Series MS51-7103 Proportional Series TAC DuraDrive™ Linear Series Spring Return Actuator General Instructions Application TAC DuraDrive Linear Actuators are designed to mount directly onto two-way or three-way globe valves without the use of linkages. They provide linear travel to operate valves from 1/2" to 2" VB-7xxx and discontinued 1/2" to 1-1/4" VB-9xxx in chilled water, hot water and steam applications up to 366 °F (186 °C).
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Applicable Literature F-Number Description Audience Purpose EN-205 Water System Guidelines – – – – Application Engineers Installers Service Personnel Start-up Technicians Describes TAC approved water treatment practices.
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Note: All performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult TAC. TAC shall not be liable for damages resulting from misapplication or misuse of its products. Table-1 Specifications.
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TYPICAL TWO POSITION CONTROL (wiring diagrams) Figure-1 illustrates typical wiring diagrams for spring return two-position MA51-710x actuators. See Table-1 for model selection. See 8 for wiring diagrams notes guide.
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24 Vac Transformer or 20-30 Vdc 1 Line Volts Common Hot Black Common Red Hot (+DC) Blue Extend Retract Yellow/Black Violet AO MF51-7103-xxx 2 3 4 8 Controller Feedback Signal (-) 2 to 10 Vdc (+) Figure-4 Triac Sink 1 24 Vac Transformer or 20-30 Vdc 24 Vac Transformer or 20-30 Vdc 1 Line Volts Line Volts Black Hot Common Common Hot (+DC) Red Extend Blue Retract Yellow/Black Violet 2 3 4 8 AO Feedback Signal (-) 2 to 10 Vdc (+) Controller MF51-7103-xxx Figure-5 Triac Sink
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1 24 Vac Transformer or 20-30 Vdc Blk Red Yel/Blk Line Volts Control Signal 2 to 10 Vdc (-) (+) Feedback Signal (-) 2 to 10 Vdc (+) Com Hot (+DC) AI Violet MS51-7103-xxx 2 8 AO Blk 3 Com MS51-7103-xxx Hot (+DC) Red Yel/Blk AI Violet AO 2 3 8 Figure-7a Typical Wiring Diagrams for Proportional Control 24 Vac Models Wired in Parallel 24 Vac Transformer or 20-30 Vdc 1 Line Volts Blk Com Red Hot (+DC) White/Red Typical Controllers CP-8102 TP-810X TP-8121 TP-8124 TP-8232 2 4 8 Yel/Bl
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1 Provide overload protection and disconnect as required. 2 Actuators may be wired (120V mA does not have red wire and 230V mA does not have red or black wires) in 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. 3 The Common connection from the actuator must be connected to the Hot connection of the controller. The actuator Hot must be connected to the controller Common.
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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 setting—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.
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Direct Acting (pins connected) Reverse Acting (pins open) Actuator extends with increased signal. Actuator retracts with increased signal. Figure-9 RA/DA Jumper Setting for Proportional Models Manual Override 5 Actuator Rack Mounting Bracket 3 Crank Connecting Pin 6 Jam Nut Stem Extension 1 2 Valve Stem* 4 Hex Mounting Nut* Valve Body* *Not included with actuator.
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4. Orient the actuator mounting bracket on the valve and tighten the hex mounting nut securely against the bracket using TOOL-37. 5. Insert the crank provided in the actuator cover. Wind the crank two turns counterclockwise. Press in the turn crank 1/8 turn counterclockwise to lock in position. 6. Rotate the stem extension until the through holes in the stem extension and rack line up.
PAGE 11
• For non-steam application the globe valve assembly must be mounted so that the actuator is at least 5° above the horizontal (Figure-11) to ensure that any condensate that forms will not travel into the mounting bracket or actuator. • On steam applications, the globe valve assembly must be mounted approximately 45° from horizontal. • Temperature Restrictions: For maximum ambient 140 °F (60 °C) the maximum allowable fluid temperature should not exceed valve rating.
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0° 0° 90° 90° 180° 180° Figure-13 Unacceptable Mounting Orientation MANUAL OVERRIDE OPERATION When necessary, the actuator’s output shaft can be repositioned using the manual override mechanism as follows: 1. Disconnect power from the actuator. The actuator will fully retract. 2. Without pushing down on the crank, crank the manual override counterclockwise until the actuator extends to the desired position. Push in until the mechanism locks in position.
PAGE 13
as determined by the control signal. Refer to Table-3 for valve flow. 2. Break power to the actuator. Actuator and valve should return to the spring return position (retracted position).
PAGE 14
DIMENSIONAL DATA 1-3/4 (45) Minimum Clearance 6-5/16 (160) 6-5/16 (160) 5-5/64 (129) Dimensions shown are in inches (mm). 6-49/64 (172) 3-1/2 (89) Figure-14 Mx51-710x Spring Return Valve Actuator Dimensions 14 © Copyright 2008 TAC All Rights Reserved.
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Copyright 2008, TAC All brand names, trademarks and registered trademarks are the property of their respective owners. Information contained within this document is subject to change without notice. F-27169-6 TAC 1354 Clifford Avenue P.O. Box 2940 Loves Park, IL 61132-2940 www.tac.