FloAire DMUA - Manual (Page 4)

4
INSTALLATION
It is imperative that this unit is installed and operated with the designed airflow and electrical supply in
accordance with this manual. If there are any questions about any items, please call the service
department at 1-866-784-6900 for warranty and technical support issues.
Mechanical
WARNING: DO NOT RAISE VENTILATOR BY THE HOOD, BLOWER OR MOTOR
SHAFT, OR BEARINGS
– USE LIFTING LUGS PROVIDED OR A SLING
Site Preparation
1. Provide clearance around installation site to safely rig and lift equipment into its final position.
Supports must adequately support equipment. Refer to manufacturer’s estimated weights.
2. Consider general service and installation space when locating unit.
3. Locate unit close to the space it will serve to reduce long, twisted duct runs.
4. The fan discharge must be located at least 10 feet away from any supply intakes. The fan
discharge shall be located in accordance with the applicable building code provisions.
Roof Mounting
1. Ventilators are designed for installation atop a prefabricated or factory built roof curb. Follow
manufacturer’s instructions for proper curb installation.
2. If a backdraft damper is required, it should be secured within the curb using sheet metal screws,
to the bottom of a damper box or damper support flanges located below the roof deck.
CAUTION: NFPA-96 RECOMMENDS THAT DAMPERS SHOULD NOT BE INSTALLED
WHEN EXHAUSTER IS USED FOR REMOVAL OF SMOKE AND GREASE LADEN VAPORS
FROM COMMERCIAL KITCHEN EQUIPMENT. CONSULT STATE AND LOCAL CODES
FOR DETAILED REQUIREMENTS.
3. If an up-blast fan is used for kitchen hood exhaust, ensure discharge is at least 40 inches above
the roof surface in accordance with NFPA96.
4. On an up-blast fan, normally the power cord is brought through the conduit tube located on the
top skirt on the outside of the unit.
5. Secure ventilator curb through vertical portion of the ventilator base assembly flange using a
minimum of eight (8) lug screws, anchor bolts, or other suitable fasteners (not furnished).
6. Before connecting fan motor to power source verify power line wiring is de-energized.
7. Connect power supply wiring to the motor as indicated on the motor nameplate or terminal box
cover. Make certain that the power source is compatible with the requirements of your
equipment.
8. Before powering up fan check ventilator wheel for free rotation.
9. Check all fasteners for tightness.
10. Re-install motor dome.
11. A drain pipe is provided for single-point drainage of water and residue on up-blast fans. The
drain pipe should be positioned towards the roof slope. Some means for collection of this
residue must be provided, either a container directly under the trough or use of an adapter and
pipe to carry the residue to a remote collection point. An optional down spout and grease
collection box is available as an accessory item for up-blast fans.