FSD-TD - Installation Operation and Maintenance Instructions
9.
(HF) HEVAC Frame Installation (wall and floor) Procedure -
Figs. 6-8
9.1 Preferably, prepare opening whilst building the wall/floor (or cut an opening if the wall/floor already
exists).
9.2 Finished sizes should be 50mm min to 100mm max > HEVAC frame assembly extremities.
9.3 The damper is not load-bearing and additional support for the top of the wall opening is achieved by
means of a lintel or other approved method.
9.4 Fit looped steel wall anchors (06mm min) all round the inside of the opening in corresponding
positions to the HEVAC frame builder's ties.
9.5 Bend the builder's ties out. (See Fig. 6)
9.6 (Vertical installation only) Prepare a pair of spacing blocks, (approx. 25mm cubed) from any
available material (such as drywall boards). Position spacing blocks within the opening at
extremities of damper and stand the damper on blocks so that damper is central in opening.
9.7 While supporting the damper centrally in the cavity, secure the builders ties to the looped wall
anchors with 1.5mm galvanized steel wire. (The loops must be tight and a minimum of 3 loops is
recommended). (See Fig. 7)
9.8 Fill the surrounding cavity with 4:1 mortar and finish to desired standard.
Page 8
Fig. 8 (Floor)
