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INSTALLATION
MOUNTING THE DROPPER ASSEMBLY
WARNING! The roof must have an adequate load bearing
structure that is sufficient to bear the load of the cooler
along with any other dead/live loads (such as cladding
and personnel etc.) prior to mounting the dropper. Please
refer to the 'Assessment of Roof Structure' section. The
following instruction assumes an adequate roof structure
is in place.
A dropper height template has been provided to accurately set
the height of the dropper such that it is ideally positioned for
fitment of the sloped tank and accessories pack. The template
is a 25mm x 25mm x 3mm piece of steel angle bar with length
of 750mm.
The following method of height-setting is only applicable
for roof angles between 15 and 30. Roof angles outside this
range of angles will need to be manually set for height via
another method.
Install back-flashing into the dropper roof opening. Place a thin
sheet of rigid material (i.e. flashing, sheet metal, MDF board or
similar) onto the rear of the roof opening as shown to stop the
height tool from falling into the crevices of the corrugated iron/
tiles and to prevent it making rubbing or scuffing marks on the
roof.
Insert the dropper height template into the keyed opening and
feed through until it sits flush against the opposite side of the
transition as shown. A section of the height template should
protrude from the rear of the dropper transition (high roof side).
14 |
Once in place, begin lowering the dropper into the opening in
the orientation shown (this may require two personnel). Adjust
the position of the dropper such that the height tool rests on the
piece of rigid material.
Level the dropper, with a spirit level placed across the top of the
transition in both directions.
Once level, secure the dropper to the roof structure with a
preliminary fastener (these are not provided - use a regular
fastener i.e. a single nail or TEK screw) to assist with holding
the dropper in place. Recheck the position of the dropper using
the spirit level and the height template. Adjust the preliminary
fasteners if necessary.
Once level, begin properly securing the dropper to the roof
structure using roofing screws. These are not provided.
DO NOT USE THE PROVIDED TEK SCREWS – THESE ARE
FOR USE ELSEWHERE.
Insert 5x fasteners per side to be spaced at 100mm intervals in
ILL2778-A
the centre of the timber support members. Refer to Appendix A.
Ensure the top of the dropper is level in both directions.
The installer must ensure the dropper is secured adequately
for wind conditions at the site. Additional restraints may be
required if the cooler is more than 200mm (8") higher than the
roof timbers, or design wind velocity at the site exceeds 43m/s
(141fps). In very high wind areas or areas subject to hurricanes/
windstorms, or where the cooler is located more than 8m (26')
above the ground, seek advice from a structural engineer.
ILL2978-A
Remove the height template by sliding it through the front
keyhole of the transition.
ILL2977-A
ILL2980-A
ILL2979-A
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