FloAire FAV-M - Manual (Page 12)

12
Gas Connection
Diagram
Copper Wire Ampacity
Wire Size AWG Maximum Amps
14 20
12 25
10 30
8 40
6 55
4 70
Electrical
Before connecting power to the heater, read and understand this entire section. Wiring diagrams are
furnished with each fan by the factory, and are attached to the door of the unit.
WARNING!!
Disconnect power before installing or servicing fan. High voltage electrical input is needed for
this equipment. This work should be performed by a qualified electrician.
Electrical wiring must be done in accordance with local ordinances and the National Electric Code,
ANSI/NFPA70. Be sure the voltage and phase of the power supply and the wire amperage capacity
conform to those listed on the motor nameplate. For additional safety information, refer to AMCA
publication 410-96, “Recommended Safety Practices for Users and Installers of Industrial and
Commercial Fans.”
1. Always disconnect power before working on or near a heater. Lock and tag the disconnect switch
or breaker to prevent accidental power-up.
2. A dedicated circuit should supply the units electrical disconnect with circuit protection, according to
the National Electric Code.
3. Make certain that the power source is compatible with the requirements of your equipment. The
heater nameplate identifies the proper phase and voltage of the motor.
4. Units shipped with an optional remote panel have two electrical circuit drops. It is important to run the
motor wires in a conduit separate from the remote control wiring. The DC wires from the unit
temperature controller, located in the control drop, should be either in shielded cable or run in a
separate conduit.
5. Before connecting the heater to the building power source, verify the power line wiring is de-
energized.
6. Secure the power cables to prevent contact with sharp objects.
7. Do not kink power cable and never allow the cable to come in contact
with oil, grease, hot surfaces or chemicals.
8. Before powering up the heater, check fan wheel for free rotation and
make sure that the interior of the heater is free of loose debris or
shipping materials.