FloAire FKB-INLINE - Manual (Page 8)

8
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 fan, read and
understand this entire section of this document. As-built
wiring diagrams are available with each fan by the
factory.
Electrical wiring and connections should 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 is in accordance with 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
fan. Lock and tag the disconnect switch or breaker to
prevent accidental power up.
2. A disconnect switch is shipped with every fan. The switch
is located on the exterior of up-blast fans and in the interior
of down-blast fans. On down-blast direct drive fans, the
disconnect function is built into the speed controller.
3. A dedicated branch circuit should supply the motor circuit
with short circuit protection according to the National Electric Code. This dedicated branch
should be run to the junction box mentioned above and connected as shown in a following
illustration labeled “Fan to Building Wiring Connection”.
4. Make certain that the power source is compatible with the requirements of your equipment. The
fan nameplate identifies the proper phase and voltage of the motor.
5. Before connecting fan to building power source, verify power line wiring is de-energized.
6. Secure the power cable 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 fan check fan wheel for free rotation and make sure that the interior of the fan
is free of loose debris or shipping materials.
9. If any of the original wire supplied with the fan must be replaced, it must be replaced with type
TW wire or equivalent.
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.