Aluminum Damper Installation Guidelines
Overview
WARNING: DO NOT TAMPER WITH LINKAGE, WARRANTY WILL BE VOIDED.
- When labels on blades are viewed right side up, the damper orientation is Front/Top end up.
- When viewed as Front/Top end up, right hand (RH) has drive rod as shown. Left hand (LH) has drive rod on left.
- The damper, as a complete unit, can be installed right side up, upside down, standing up, or lying flat.
- There is no specified air entry or air exhaust side for Series 9000 BF, 9000 ECT, 9000, 9000 SC, 1500, 1500 SW, 1000, 1000 SW, 1400.
- Ensure that the damper is installed allowing for future access to the side linkage, as well as the damper jumper bracket, or jackshaft, if so supplied.
- Joiners and fasteners, provided by TAMCO to interconnect damper sections, are for alignment purposes only and may not be considered as structural supports.
- Duct work construction and bracing must be sufficient to support the damper. Do not use the damper to square up the duct. The system must support the damper. The damper cannot support the system.
- For vertical applications, the damper must be installed so that the linkage is located at the top. Sections must be properly braced and supported.
- A 12"-long, hexagonal steel drive rod is provided as standard. Dampers are shipped with their drive rod inserted in the drive blade. Drive rods may be extended up to 8" beyond the outside edge of the frame by loosening the U-bolt, drawing out the rod to the desired length and then retightening the U-bolt.
- If required, 24" and 36" long zinc-plated, steel drive rods can be ordered.
TAMCO's all aluminum dampers are constructed with maintenance-free bearing and linkage components.
Caution: Never use any lubricants, such as grease or silicone on TAMCO dampers.
In applications where the humidity level is unusually elevated, or where there are extremely high levels of dust and dirt particles, TAMCO recommends that the damper linkage and bearing system should be cleaned once a year. This can be done easily with the use of a domestic strength steam cleaner. The loosened dirt and water droplets can then be blown out with compressed air.
Before Installation
- Before installing, inspect the damper for possible damage caused in shipping.
- If minor damage has occurred to frame corners or flanges, correct by bending or hammering back into position. Ensure correct realignment of repair, as bent or twisted frames might not mate with mounting angles, or additional damper sections, properly.
- Do not install the damper if damage is more than superficial, if uncertain as to extent of damage, or if the damper does not seal correctly. Call TAMCO customer service at 1-800-561-3449.
- Operate the damper section manually (on a flat section of floor) to verify correct blade action and sealing.
- To correctly verify sealing action, loosen the hex nuts of the U-bolt located on drive blade. Extend the steel drive rod to maximum of 8" beyond the outside edge of the frame. Re-tighten the hex nuts on U-bolt.
- Using the drive rod, slowly apply closing torque, while ensuring that the damper frame does not twist due to torque being applied. (Larger dampers may require an additional person to hold the damper frame square and true.)
- If possible, use daylight or an inside light source as a backdrop to the verification procedure. No light should be visible through the damper.
CAUTION SHOULD BE EXERCISED TO ENSURE FINGERS ARE NOT IN THE WAY OF
MOVING LINKAGE PARTS OR BLADES.
"In Duct" and "Flanged to Duct" Type Damper Installation
TWO-, THREE-, OR FOUR-SECTION VERTICAL DAMPER
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- Install bottom damper section(s).
- Place second level of damper section(s) on top of bottom sections, being careful to align them with the section(s) below.
- Install top damper section(s).
- Slide joiner(s) over frame member(s), where top and bottom sections meet.
- Using self-drilling screws, fasten joiner to damper frame member(s) through pre-punched holes in joiner.
Caution: Joiner is not designed to be structural. Additional bracing may be required if deemed necessary by installer.)
- Repeat procedure for all additional vertical sections.
- Ensure all sections are straight, even, and in line with each other.
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"INSTALLED IN DUCT" TYPE
- Damper must be installed square.
- Damper is approximately ½" smaller than the specified duct size.
- Ensure that the duct is square and/or large enough to allow the damper to be installed square
- Make a hole in the duct work, if required, to allow extension of the drive rod.
- Verify that the damper is square and then secure the bottom frame to the floor of the duct using a 90° mounting angle. Operate the damper manually to confirm proper sealing.
- As each mounting angle is installed, verify operation to ensure the damper is sealing correctly.
- Caulk all joints.
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"FLANGED TO DUCT" TYPE
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- Damper must be installed square.
- Damper flange is 1" larger than the duct or opening, all around.
- Do not assume that the duct is square. Verify that the duct flange is square, flat and even.
- Verify that the damper is square. Operate the damper to verify free movement of the blades and correct sealing. Secure the damper. Re-verify that the damper is square.
- Repeat the procedure for the other flange, if ducted on both sides.
- Caulk all joints.
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Installing Multi-Section Dampers
IF JACKSHAFTS ARE TO BE FITTED, SEE
JACKSHAFT INSTRUCTIONS PRIOR TO INSTALLING DAMPERS
TWO-SECTION HORIZONTAL DAMPER
- Frame members are designed to overlap and offer two aligned positioning holes. When dampers are correctly positioned, holes will be aligned.
- Alignment fasteners are shipped attached to offset overlapping frame. (Alignment holes are not meant to be structural. Bracing may be deemed necessary by installer.)
- Ensure both sections are straight, even, and in line with each other.
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FOUR-SECTION HORIZONTAL DAMPER
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- Frame members are designed to overlap and offer two aligned positioning holes. When dampers are correctly positioned, holes will be aligned
- Alignment fasteners are shipped attached to offset overlapping frame.
(Alignment holes are not meant to be structural. Bracing may be deemed necessary by installer.)
- Ensure four sections are straight, even, and in line with each other.
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END CAPS
FOR FLANGED-TO-DUCT TYPE, MULTI-SECTION DAMPER INSTALLATIONS |
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- End caps are provided with all multi-section dampers that are to be installed as flanged-to-duct mount type.
- These are required to prevent air flow from passing through open channels.
- End caps are not required for installed in duct type multi-section dampers.
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Caulk all joints, once all damper sections have been fastened in place. |
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