PREPARATION TO DEVICE OPERATION.
Attention! All maintenance works and connection
of fans are to be performed only after switching
off mains. Connection of fans to electric power
supply must be performed only through switch
with actuation length not less than 3 mm at all
poles. Direction of air-charging is to comply with
directionof arrow on the fan case.
If necessary, ensure conditions to prevent free
access to impeller and current-carrying parts of
fan by protective means from side of outcome
(ventilation grille, protective cowl, backdraught
shutter and so on). Connection of fans to electric
power supply is shown in Fig. 1 and 2.
OPERATIONS OF CONNECTION TO POWER
SUPPLY
Remove protective grid and cover, Fig. 1. Pass
power supply cords through a hole 3 (having cut a
thin plastic pierce on the spot of opening before-
hand). Smooth out wire rags at length 7-8 mm to
clamp terminals 4 agaist stop to the metal part of
the clamp and tighten them with screws. Fix cords
with the help of clip 2. Reinstall cover and protec-
tive grid back.
For fans without switch, it is advisable to install
powersupply switch on xed power supply wiring.
Diagram of connection of fan to xed power supply
wiring is shown in Fig. 2.
UK
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