FloAire Canopy Hood - Manual (Page 8)

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8. Use 1/2” threaded rod to hang hoods. Drill 9/16” holes in the structural support system or use
Unistrut® to line up with the welded-on angle mounting brackets on the hood. There are several
types of mounting brackets depending upon the hood type; each, however, has a predrilled hole.
See Figure 2 for details. The structural integrity of the structural support system is the
responsibility of the contractor and the structural engineer. There are also center hanging
angles on hoods 12 feet in length and longer.
Center hanging angles must be used to
support the hood weight and prevent filter fit and grease drainage problems . Some
backshelf hoods do not have hanging angles and must be anchored to back wall using the
standing flange provided. Structural lagbolts must be used every 12 inches on center maximum
and must be secured to studs behind wall.
9. The spacing on the hole for the modified support should line up with the mounting bracket on top
of the hood. The top hanger should be 1/2” closer to the back wall than the mounting bracket on
the hood to pull the hood against the wall. See Figure 3. Some hoods are designed for island
installations where a wall is not present.
10. With the hood well protected against possible scratching, raise the hood into position using high
lifts or equipment jacks at each end to keep the hood level. When the hood is elevated to the
proper height, install 1/2” threaded rod between each mounting bracket on the hood and the
modified support. Secure rods with heavy duty nuts and appropriately sized fender washers
above and below the hanging angle.
11. Make final adjustments as needed to ensure the hood is hung level. Maintain tension on all rods
to ensure the hood weight is evenly distributed. If it is necessary to stand or work on top of the
hood, use pieces of plywood to evenly distribute weight on the hood so no damage occurs.
12. Brace hood to ceiling joists and wall(s), as applicable, so that the hood does not move. Secure
hood to wall in a manner acceptable to the authority having jurisdiction.
13. If the hood has Back and/or Side Perforated Supply Plenums (i.e. PSPs), install them now. See
the Installation of Hood Accessories section.
14. If an AC-PSP is to be installed with the hood, install it now. See the Installation of Hood
Accessories section.
15. Install the exhaust ductwork. The entire exhaust duct system must be continuously welded, liquid
tight unless it is Listed Factory Built Grease Duct. The duct must be welded to the hood exhaust
collar and the roof curb cap must be welded to the exhaust duct. See Guidelines for Ductwork
Installation - By Others.
16. Install the supply ductwork. See Guidelines for Ductwork Installation – By Others.
17. If the hood is equipped with a control unit, an installation wiring diagram will be provided inside of
the control unit. The jobsite electrician is responsible for making the appropriate field
connections. This includes all lights and duct/hood mounted thermostats.
All field wiring on top
of the hood must use high temp wire and wire nuts (black). Wiring must be routed through
hard or flex conduit. Route and attach all conduit on top of, or above, structural joists (Hat
Channel) on top of hood. Conduit cannot contact the surface of the hood ceiling.
18. If the hood is equipped with a factory prepiped fire suppression system, a certified fire system
installer is responsible for completing the field hookup, testing, and certifying the system in
accordance with the manufacturer’s specifications and the local fire codes. If the hood is not
prepiped, a certified fire system installer is responsible for installing, testing and certifying the
system in accordance with the manufacturer’s specifications and the local fire codes.
19. If the hood is equipped with wrappers (enclosure panels), end panels, and/or backsplash panels,
install them now. See the Installation of Hood Accessories section.
20. Caulk the lower edge of the hood where it meets the wall. This does not apply to hoods installed
in island configurations.
21. Install light bulbs, light globes, and grease filters in the hood.
22. Install grease cups in the brackets/slots provided.
23. Use a stainless steel polish to clean the hood of dust or dirt acquired in transit.
24. It is recommended that the protective plastic sheeting remain on the installed hood until
construction is complete, so as to avoid any damage to the equipment.
WARNING: NEVER PUNCTURE THE HOOD GREASE CONTAINMENT AREA TO
HANG HOOD OR TO HANG ITEMS FROM HOOD. PUNCTURING THE GREASE
CONTAINMENT AREA WILL VOID WARRANTY AND LISTING ON HOOD.