SystemAir fantech FG 10, Installation And Operation Manual, Page: 5 / 16

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Exhaust system Ceiling exhaust system Horizontal installation Exhaust system
INSTALLATIONS
INSTALLATION DIAGRAM FOR MODEL FG DUCT FANS
Illustration 1
Fan bracket should be installed, then fan mounted directly to bracket using sheet metal screws.
Models
• 6XL • 10/10XL
• 8/8XL
Models
• 4/4XL • 6
• 5/5XL
Models
• 12XL
1. When installing, keep the number of elbows and bends to a minimum. If necessary, long radius elbows or bends are
recommended.
2. Duct sealant, caulk, or tape should be applied to all seams, including around the opening in the wall or ceiling on the interior and
around exterior building penetrations, to prevent air leakage and maximize air performance.
3. Flex, spiral, or snap lock ducting may be used. If using rigid duct, Fantech FC clamps are recommended to connect duct work to
the fan (see illustration 2). FC clamps make an air tight seal at the connection points and reduce vibrations transmitted
throughout the duct system. If screws are
used, do not locate them in the entrance duct less than half an inch from the housing
(see illustration 3).
4. To minimize static pressure losses and promote adequate airflow, minimize duct run lengths where possible. If using flex duct,
keep duct runs straight and taut.
5. If installing in an unconditioned space, covering the fan with insulation is recommended to prevent condensation from forming.
6. For general ventilation applications, at least 8 ft of insulated flexible duct shall be installed between the exhaust or supply grille(s)
and the fan.
The ducting from this fan to the outside of the building has a strong effect on the air flow, noise and energy use of the fan. Use the
shortest, straightest duct routing possible for best performance, and avoid installing the fan with smaller ducts than recommended.
Insulation around the ducts can reduce energy loss and inhibit mold growth. Fans installed with existing ducts may not achieve their
rated air flow.
Use long screws (bracket-wall) to mount the bracket and short screws (bracket-fan) for fan.