User Guide

ManualsBrandsBarber Colman ManualsDampers35 lb-in Direct Mount DuraDrive Actuator (24V)

Canadian Department of Communications (DOC)

Note:

This Class B digital apparatus meets all requirements of the Canadian Interference-

Causing 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 is a Class B digital (European Classification) product. In a domestic

environment this product may cause radio interference in which case the user may be

required to take adequate measures.

Location

Caution:

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

explosive vapors are present.

Mounting

Caution:

To remain in NEMA 2/IP54 compliance, the MS4X-715X and MS4X-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 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.

MX41-707X and MX41-715X If the universal clamp is not set to 0° on the position indicator,

manually wind the actuator in the direction indicated with hex wrench from -5° to 0° and lock

with a screwdriver.

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 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 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.

Changing Direction of Rotation

The MS40-7043, MS4X-7074, and MS4X-7153 actuators are equipped with a switch to

control the direction of rotation. The switch can be set to "L” (left) or “R” (right) rotation. An

actuator set to “L” will have a clockwise rotation when viewed from the left side. When

viewed from the right side the rotation will be counterclockwise. Refer to Figure-3.

Caution:

These are spring return actuators. It is possible to switch to a direction that

moves the actuator against the -5° positive stop. Example: Viewing the actuator from the

left side with the switch set to “R” and an increasing signal. The actuator will attempt to

rotate beyond the -5° stop and will stall.