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EDA-2040 Series Electric Damper Actuator

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EDA-2040 Series Electric Damper Actuator EDA-2040 Series Electric Damper Actuator Kit Includes Quantity Item 1 EDA-2040-5001 with 1/2 in. coupler and 1 minute rotation time 1 #10 Thread Cutting Tapping Screw Tools Required • screwdriver, flat-blade with 1/4 to 5/16 inch tip or 5/16 inch nut driver • Allen wrenches, 3/32 and 7/64 inch sizes • pliers • drill and 5/32 inch (4 mm) drill bit Installation The EDA-2040 Electric Damper Actuator can be field installed on any VAV box with a 1/2 inch (12.7 mm) round damper shaft. The actuator is not position sensitive and can be mounted in any convenient location, although the wiring terminals and phone jack should be easily accessible and protected from moisture and corrosive fumes. No extra mounting brackets, linkage, or couplers are required. O-Ring Set Screw Figure 1: Shaft Coupler Part Number 34-636-54 1 Rev. – (0692) © 1992 Printed in the U.S.A. Pre Mounting Setup 1. Unpack the EDA-2040 and check for the proper contents. 2. Manually position the VAV box damper in its full open position and note the orientation of the damper shaft. 3. Grasp the damper shaft firmly with a pliers and manually close the damper. Note the rotation travel (30° - 90°) and direction of rotation (CW or CCW) required to close the damper. Set Screw Damper Shaft Rotation Adjustment Stop Shaft Coupler Rotation Adjustment Scale Manual Release Sllider Mounting Slot With Shoulder Washer For #10 Screw Figure 2: EDA-2040 Components 4. Locate the rotation adjustment scale on the EDA-2040. (See Figure 2.) 5. Use a 7/64 inch Allen wrench to loosen the rotation adjustment stop and position it at the degree of rotation (30° - 90°) determined in Step 3. 6. Tighten the stop. 7. Lift the manual release slider on the side panel of the EDA-2040 and simultaneously turn the shaft coupler in the same direction as determined in Step 3 (CW or CCW) until reaching the stop. 2 Standard Mounting O-Ring VAV Box Damper Shaft Removable Shaft Coupler EDA-2040 Phone Jack Figure 3: Standard Mounting of the EDA-2040 1. Place the EDA-2040 on the VAV box so that the damper shaft protrudes through the shaft coupler. (See Figure 3.) Phone Quick Connect Jack Terminals Manual CCW COM CW Release Slider VAV Box Mounting Recommended Surface 1/8 in. Gap Figure 4: Actuator Position 2. Place the actuator in the preferred mounting position 1/8 inch (3.2 mm) from the surface of the VAV box. (See Figures 3 and 4.) 3 3. Using a 3/32 inch Allen wrench, tighten the coupler set screws against the shaft by inserting the short arm of the Allen wrench into the hex socket screw. 4. Rotate the Allen wrench clockwise until the hex socket screw contacts the damper shaft. 5. Continue rotating the Allen wrench until the hex socket screw tightens and no further rotation of the screw can be made. 30° Figure 5: Tightening Hex Socket Screw 6. Continue turning the Allen wrench until obtaining approximately a 30 degree deflection of the wrench. (See Figure 5.) Note: When pressure on the Allen wrench is removed, the wrench will return to its original shape. 7. Manually rotate the actuator shaft to gently close the damper blade. 8. Lift the manual release slider and position the actuator in its preferred mounting orientation so that wiring connections are easily accessible. 9. Using a drill with a 5/32 inch (4 mm) drill bit, drill a hole into the VAV box through the shoulder washer on the mounting slot of the EDA-2040. 10. Insert the #10 thread cutting tapping screw provided and tighten. 11. Lift the manual release slider and hand turn the shaft to ensure that the damper can rotate from its full open to full closed positions. 4 Flush Mounting VAV Box Damper Shaft O-Ring Removble Shaft Coupler EDA-2040 Phone Jack Figure 6: Flush Mounting of the EDA-2040 1. Install the shaft coupler to the shaft within 1/8 inch (3.2 mm) of the VAV box with the O-ring away from the damper. 2. Using a 3/32 inch Allen wrench, tighten the set screws. Tighten the hex socket screws against the shaft by inserting the short arm of the Allen wrench into the hex socket screw. 3. Rotate the Allen wrench clockwise until the hex socket screw contacts the damper shaft. 4. Continue rotating the Allen wrench until the hex socket screw tightens and no further rotation of the screw can be made. 5. Continue turning the Allen wrench until obtaining approximately a 30 degree deflection of the wrench. (See Figure 5.) Note: When pressure on the Allen wrench is removed, the wrench will return to its original shape. 6. Place the actuator onto the shaft coupler in the preferred mounting position. 7. Manually rotate the actuator shaft to gently close the damper. 8. Lift the manual release slider and position the actuator in its preferred mounting orientation so that wiring connections are easily accessible. Note: If manual rotation of the actuator is not possible, connect a 24 VAC power source to the actuator and drive it to the proper position. 5 9. Using a drill and 5/32 inch (4 mm) drill bit, drill a hole into the VAV box through the shoulder washer on the mounting slot of the EDA-2040. 10. Insert the #10 thread cutting tapping screw provided and tighten. 11. Lift the manual release slider and hand turn the shaft to ensure that the damper can rotate from its full open to full closed positions. Wiring All wiring must be in accordance with the National Electrical Code and applicable local code requirements. ! CAUTION: Disconnect all power supplies to the system before wiring the EDA-2040 to avoid damage to equipment or possible electrical shock. 1. Open the connection cable and insert one phone plug into the EDA-2040. 2. Insert the phone plug on the other end of the cable into the controller. 6 7 8.
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