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1. Remove flange screws and detach flanges from damper casing. Ensure wall penetration is correct size. Opening should be as to AS1682.2-1990 Clause 'C'.

2. Wrap damper with suitable high temperature insulation and slide into wall penetration. Intumescent slats shall be in the VERTICAL position. NOTE: "AIRFLOW" direction is optional.

3. Replace flanges, making sure damper is firmly fixed to the wall. NOTE: do not overtighen flange screws.

4. Connect ductwork to fire damper using fire rated mastic to fill recess if using raw edge connection, or apply mastic to both surfaces of the TDF flange connections. (Bolts must be of a low melting point material.)