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 and so on). Con-
nection of fans to electric power supply is shown
in Fig. 1–6.
OPERATIONS OF CONNECTION TO POWER
SUPPLY
Remove protective grid and cover. Pass power
supply cords through a hole 3 (having cut a thin
plastic pierce on the spot of opening beforehand).
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 protective
grid back.
For fans without switch, it is advisable to install
powersupply switch on fixed power supply wiring.
Diagram of connection of fan to fixed power supply
wiring is shown in Fig. 7–10.
UK
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