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Installation
Allowed pressures
during installation:
1. Ancor the fan to the concrete pad.
2. Connect the ducting to both the inlet and the outlet of
the fan before starting. Th is fan is an overload type fan
and will not function correctly without being connected
to the ductwork giving suffi cient restriction.
3. Th e electrical connections may only be made by a qua-
lifi ed electrician. A separate lockable disconnect should
be installed next to the fan. Check for correct motor
rotation.

Test Running

1.
Close all inlets so that the fan can be started wit-
hout problems. Start the fan and check the ducting.
2.
Open all outlets the system is designed for and
check the pressure as well as the motor current draw.
Service
Th e fan has a minimal need for service. Every 10 000 h
it could be necessary with a lubrication of the layers in
the engine.
Do not lift from this
side:
4. Th ermal overload protection must be installed according
to the prevailing electrical code and adjusted by a qua-
lifi ed electrical technician.
5. Extra silencing shall be installed.
6. If the outlet is vertical, rain protection should be installed.
Please observe: exhaust air can be very hot.
3.
Run the fan at maximum fl ow for 15 minutes also
check the setting of the thermal overload protection.
RAF 1600/2500 - 12
The fan should be moun-
ted on a concrete pad:
Part No 9053/9054

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250090539054

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