Submittal Sheet

ManualsBrandsBarber Colman ManualsDampers35 lb-in Floating Damper Actuator (24V)

General Instructions

TAC DuraDrive Electric Damper Actuators

MF41-6043/MF41-6083 Series

Non-spring Return Rotary

24VAC 3-Position Control

Description

These TAC DuraDrive™ direct coupled 24 Vac non-spring return rotary electric

actuators are designed for three-position (floating) control of dampers.

Features

• Compact, lightweight design

• Manual override

• 5° preload as shipped from factory

• Plenum cabling

• Feedback potentiometer models available

• cUL and UL listed; plenum versions also CE certified

• Independently adjustable dual auxiliary switches available

Application

These actuators are used in constant or variable air volume installations for control of

HVAC dampers requiring up to 35 lb-in (4 Nm) or 70 lb-in (8 Nm).

Product Numbers

Table 1.

Torque

Cabling

Standard With

Potentiometer

Dual Auxiliary

Switches

Only

35 lb-in (4 Nm)

MF41-6043 MF41-6043-510 MF41-6043-502

70 lb-in (8 Nm)

Plenum

MF41-6083 MF41-6083-510 MF41-6083-502

Warning/Caution Notations

WARNING:

Personal injury or loss of life may occur if you do not follow a

procedure as specified.

CAUTION:

Equipment damage or loss of data may occur if you do not

follow a procedure as specified.

Printed in the U.S.A. 09-08 (155-722) F-27213-2

Summary of content (9 pages)

PAGE 1
General Instructions TAC DuraDrive Electric Damper Actuators MF41-6043/MF41-6083 Series Non-spring Return Rotary 24VAC 3-Position Control Description These TAC DuraDrive™ direct coupled 24 Vac non-spring return rotary electric actuators are designed for three-position (floating) control of dampers.
PAGE 2
Specifications Power supply Equipment rating Auxiliary features Operating voltage (G–Y1 or G-Y2) Frequency Power consumption Rating 24 Vac +20%, -15% 50/60 Hz 2.
PAGE 3
Pre-cabled connection Cable length Life cycle Dimensions Weight Specifications, Continued Miscellaneous 18 AWG 3 feet (0.9 m) Five-year warranty See Figure 8 1.06 lb (0.48 kg) Legend Actuator Components 12 1 1. Base plate 11 2. Positioning scale for angle of rotation 10 A 2 3. Connection cables B 10 20 90 4. Connection cables 80 70 60 50 8,9 Aux Switch Adjustment 45 5. Manual override 90 7 6. Coupling bushing 6 7. 1/2-inch guide 8. Auxiliary switch A 5 9.
PAGE 4
Actuator Scale: clockwise -2,5 Adjustment range for Switches A and B Setting interval: 5° Switching hysteresis: 2° Actuator Scale: counterclockwise 0 10 20 30 70 80 A 0 92,5 90 90 92,5 A ˚ B 10 20 B 10 20 30 70 80 80 70 60 20 10 90 0 -2,5 80 70 60 50 Figure 3. Adjustable Switching Values for the dual auxiliary Switches. EA0636R1 MF41-6043-502 MF41-6083-502 Figure 3 shows the adjustable switching values for the auxiliary switches A and B.
PAGE 5
Mounting and Installation You must place the actuator on the damper shaft so that the front of the actuator is accessible. The label is the front side. EA1002R1 The minimum damper drive shaft length is 3/4-inch (20 mm). 1/2-inch Diameter Guide Factory Installed NOTE: 3/8-inch Diameter Use the shaft insert supplied for any 3/8-inch (8 to 10 mm) diameter shaft 5/8-inch Diameter For all damper shafts except the 1/2-inch round shaft, remove the 1/2-inch diameter guide before installation. Figure 4.
PAGE 6
Mechanical range adjustment 1. Loosen the stop set screw. 4 mm 2. Move the screw along the track to the desired position, and fasten it in place. 1 < 90¡ 90¡ 90 45¡ EA0536R2 EA0535R2 45 90 90¡ 2 Figure 6. Moving the Mechanical Range Stop. Wiring All wiring must conform to NEC and local codes and regulations. Use earth ground isolating step-down Class 2 transformers. Do not use autotransformers.
PAGE 7
Wiring Designations Each wire has the standard symbol printed on it. 7 (ORANGE) 6 (VIOLET) 1 (RED) NEUT EARTH GROUND ISOLATING CLASS 2 TRANSFORMER FOR 24 Vac POWER 24 Vac EA0635R2 : SAFETY ISOLATING TRANSFORMER PER EN 60742 120 Vac Figure 7. Three-position Control. Table 3. Three-position Control 24 Vac.
PAGE 8
Start-Up/ Commissioning • Check that the wires are connected correctly. • Connect wires 1(red) and 6 (violet) to a Digital Multimeter (DMM) with the dial set at Vac. Apply a control signal (24 Vac) to wires 1 and 6 to verify that the operating voltage is within range. • Connect wires 1(red) and 7 (orange) to a DMM with the dial set at Vac. Apply a control signal (24 Vac) to wires 1 and 7 to verify that the operating voltage is within range. 1. Check Operation: a. Connect wire 1 (red) to the actuator.
PAGE 9
5. Check the Auxiliary Switch B: Start-Up/ Commissioning, Continued a. Set the DMM dial to ohms (resistance) or continuity check. b. Connect wires S4 and S6 to the DMM. The DMM should indicate an open circuit or no resistance. c. Apply a control signal (24 Vac) to wires 1 (red) and 6 (violet). The DMM should indicate contact closure as the actuator shaft coupling reaches the setting of switch B. d. Stop applying a control signal to wires 1 (red) and 6 (violet). e. Connect wires S4 and S5 to the DMM.