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INSTALLATION AND OPERATION GUIDELINES
The fan is designed for mounting on a roof directly above a ventilation
shaft or air duct.
Installation procedure and mounting sequence are shown
in fig. 5, 6, 7, 8, 9, 10.
To prevent water and snow ingress inside a ventilation shaft the fan can be
mounted on a roof curb.
A roof fan can be connected to a ventilation shaft with an intake flange that
is fixed directly to the fan base.
The fan base has holes for fastening bolts for connection of the fan to the
level surface or to the roof curb.
The roof curb, intake flange and fastening bolts are not included into
delivery set and are available upon separate order.
Power supply to the fan is effected with an external terminal box or a
terminal block integrated into the motor casing.
The fan must be grounded.
The terminal must be connected to the ground loop.
Due to the constant improvements the design of some models may slightly
differ from those described in this manual.
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1
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