5. INSTALLATION
Standard electrical safety practices and codes should be used when working with a fan. Refer to the National Electric Code Standard Handbook by the National Fire Protection Association. A qualified electrician should make all wiring installations.
ALWAYS DISCONNECT AND LOCK OUT POWER BEFORE
WORKING ON OR AROUND FAN
Roof Fan Description
GSI roof exhaust fans are designed to mount on structures with sloping roofs, and with a flat roof surface at least as large as illustrated in Figure 4A & Figure 4B on page 7. The fans will mount between the ribs of standard tapered roof sheets on round steel bins without cutting the ribs, which keeps the strength of the roof sheet intact. The 18" .5 HP roof fan is shipped completely assembled, and will mount on a roof slope of 30 degrees. The 24", 2 HP roof fan is shipped with the roof adaptor and rained unassembled, and it is also designed to mount on a 30 degree roof slope.
18" and 24" Roof Fan Location
The roof fans should be equally spaced on the bin roof circumference. When installed, the roof fan should be positioned as far up the roof slope as the tapered ribs of the bin roof sheet will allow.
The roof fan location should be selected to provide a rigid mounting for the fan. For bins with an inner roof structure, the roof fan should be anchored to the inner roof structure.
8 |