FloAire Indirect Fired Heater - Manual (Page 4)

4
INSTALLATION
It is imperative that this unit is installed and operated with the designed airflow, gas, 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 INTAKE 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. Do not allow air intake to face prevailing winds. Support
unit above ground or at roof level high enough to prevent
precipitation from being drawn into its inlet. The inlet must
also be located at least 10 feet away from any exhaust
vents. The heater inlet shall be located in accordance
with the applicable building code provisions for ventilation
air.
Assembly
Intakes, curbs and downturn plenums are shipped unassembled.
Upon unit arrival, follow the following procedure to assemble the
intake and downturn plenum (if down discharge) to the heater.
1. Apply silicone or weather-proof gasket on the back side of
the flanges of the intake hood or v-bank intake.
2. Screw the flanges of the intake hood or v-bank to the unit with the supplied sheet metal screws.
If the unit is a modular unit with a v-bank or evaporative cooler section, the v-bank or evaporative
cooler will bolt to the heater with the bolts provided. Place caulk on the outside of the screws to
prevent water leaks.
3. If the unit is a down discharge unit, bolt
the downturn plenum to the indirect
fired module with the provided bolts.
The doors of the indirect fired module
provide access to install the bolts into
the downturn plenum. Ensure that seal
closes properly.
Curb and Ductwork
This fan was specified for a specific CFM and
static pressure. The ductwork attached to this
unit will significantly affect the airflow performance. Flexible ductwork and square elbows should not be
used. Also, transitions and turns in ductwork near the fan outlet will cause system effect and will
CLEARANCES
The top, back, and front
surfaces of this heater may not
be installed less than 6” from
combustible materials. The
heater base may be installed
on
combustible surfaces.
Allow 24” minimum service
clearance on both sides of this
heater.
IMPORTANT
To prevent premature heat
exchanger
failure, do not
locate any gas fired unit in
areas
where chlorinated,
halogenated, or acid vapors
are present in the atmosphere.