lindab
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This directions for use contains following products:
Rectangular Duct Fans SRF, SRF EC, LRF, LRF EC, IRF, MFF
D E S C R I P T I O N
• The fan is used for transportation of "clean" air, mea-
ning not intended for fire-dangerous substances,
explosives, grinding dust, soot, etc.
• The fan is equipped with an asynchronous external
rotor induction motor with maintenance-free sealed
ball-bearings.
• The capacitor has finite lifetime and should be ex-
changed after 45. operation hours (about 5
years of operation) to secure maximum function.
Defective capacitor can cause damage.
• To achieve maximum life time for installations in
damp or cold environments, the fan should be
operating continuously.
• The fan can be installed outside or in damp envi-
ronments. Make sure that the fan-house is equipped
with drainage.
• The fan is intended to be used with the voltage and
frequency that's stated on the label on the fan.
• The fan can be installed in any position.
I N S T A L L A T I O N
• The fan must be installed according to the air
direction label on the fan.
• The fan must be connected to duct or equipped
with a safety grille.
• The fan should be installed in a safe way and make
sure that no foreign objects are left behind.
• The fan should be installed in a way that makes
service and maintenance easy. N.B.! Consider the
weight and size of the fan.
• The fan should be installed in a way that vibrations
not can be transfused to duct or building. To provi-
de this, use for example a flange.
• To regulate the speed a transformer or a speed
controller can be connected.
• A wiring diagram is applied on the inside of the
junction box or separately enclosed.
• The fan is installed and connected electrically in the
right way grounded and with motor protection.
• The motor protection must always be used, see
wiring diagram.
• Electrical installations must be made by an
authorized electrician.
• Electrical installations must be connected to a
locally situated tension free switcher or by a
lockable head switcher.
O P E R A T I O N
Before starting, make sure that:
• the current does not exceed more than +5% of
what is stated on the label.
• the connecting voltage is in between +6% to —
1 % of the rated voltage.
• no noise appears when starting the fan.
• the rotation direction at 3-phase motors are
according to the label.
H O W T O H A N D L E
• The fan must be transported in its packing until in • Attention, look out for sharp edges and corners.
stallation. This prevents transport damages, scrat-
ches and the fan from getting dirty.
