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INSTALLATION
Lift the venturi and fan assembly out of the cooler, taking care of
the motor lead.
The venturi fan assembly, pump and electrical enclosure can
be placed on to the ground until the rest of the cooler has been
installed on the roof jack.
REMOVING THE TRANSITION
If any of the corners are difficult to remove, do not use
excessive force. Gently squeeze the clips together and remove
the transition one corner at a time
NEW INSTALLATIONS
For new installations the roof jack will be required to support the
entire weight of the unit. It is recommended that the roof jack is
designed to be 21 5/8" x 21 5/8" (550 x 550mm) and made from
24G steel. The roof jack must have a raw edge or safe edge
at the top. Do not fold in a flange as this may interfere with the
transition.
MOUNTING THE ROOF JACK
Install the roof jack and securely fix it to the roof structure on 3
sides. This may require the addition of extra structural timber.
Important! The roof jack must never sit directly on ceiling joists
or beams, as this may cause noise or vibration issues, and
possible ceiling damage.
Ensure the top of the roof jack is level and square in all directions
(use a spirit level). This helps with levelling the cooler.
The installer must ensure the roof jack is suitable, and is secured
adequately for wind conditions at the site. Additional restraints
may be required if the cooler is more than 8" (200mm) higher
than the roof timbers, or design wind velocity at the site
exceeds 141fps (43m/s).
In exposed or very high wind areas use 16 screws, minimum
shank diameter 7/32" (5.2mm), to secure the roof jack. In areas
subject to hurricanes/windstorms or where the cooler is located
more than 26' (8m) above the ground seek advice from a
structural engineer.
The roof jack may now be flashed to the roof. Make sure there
is no chance of water entering the roof space.
SECURING THE ROOF JACK AND TRANSITION
Fit the transition onto the roof jack as shown. Ensure that it is
orientated correctly, as shown by the engraved detail on the
transition.
Check the level of the transition on the roof jack, with a spirit
ILL1155-C
level placed across the flats in both directions.
Once level, begin securing the transition to the roof jack using
the screws provided. There are eight 'V' notch locations for
screws.
Only use the screws provided. All eight (8) screws must be used.
Check the level periodically before driving in all the screws.
Ensure the duct insulation is firmly held against the connector
flange on the roof
ILL1683-A
ILL965-C
ILL967-B
jack.
CTA EVAPORATIVE COOLER INSTALLATION MANUAL |
ILL969-B
ILL965-C
ILL967-B
5
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