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1. INITIAL DAMPER TEST - Before installing, check damper for damage caused by mishandling or poor transportation. Visually inspect the integrity of the dampers: blades, frames, corner brackets, interconnecting blade linkages, bearings and pivots, operational drives or quadrants and blade seals.

Check the damper blade operation by opening and closing the blade(s) via the motor drive spindle/shaft.

Clamps, pliers or other mechanical attachments may be required to assist you with this procedure.

NOTE: Ensure the damper is placed in an upright position and on a stable, flat, firm surface before this is attempted as damage may occur to some parts of the dampers blade seals, requiring replacement and causing site delays.

Should damper be in a sound condition then proceed with installation, otherwise contact your local Bullock supplier before installation.

2. Complete an "initial damper test" before installing. Should dampers function appropriately then proceed with installation.

3. Before installing damper ALL ductwork, filter/conditioner housings or plenums must be self supported to AS4254 duct standards. Refer to Australian Standard AS4254 as a guide to flange details available and ductwork installation methods.

4. Apply high temperature sealant to flange face before positioning damper. Note dampers orientational labeling showing "top" and or "airflow direction" if required these shall be adhered to.

5. Attach damper to sub-duct by mechanically fixing though damper corners. For larger size dampers additional fixings will be required at a recommended 200mm - 250mm centered spacings around damper frame, and channel or angle supports under bottom of damper frame to prevent frame sagging.

6. With the damper installed correctly in a square and sealed position cautiously repeat the Initial Damper Test as outlined in point #1. Should operational checks show correct installation proceed to connect to connect actuator to damper if required.