Connection To Motor Operated Exhaust Hose Reels; Directions For Use; Automatic Regulation Of Damper; Manual Regulation Of Damper - Nederman 591 Serie Manual De Usuario

Alternative A
The internal power supply on 24 V AC maximum 80 mA (2 VA) is used to the
fan contactor (Nederman product). Connect a cable 2 x 1.0 mm2 from A1 to
J7:0V and from 96 to J2:B. Connect a cable 1 x 1.0 mm2 from J7:24V to J2:A.
Alternative B
The power supply to the fan contactor (not a Nederman product) is supplied
from an external source, maximum 48 V, 5 A.
9 Connection to Motor Operated Exhaust Hose
Reels
Connections to Nederman motor operated exhaust hose reels should be done
according to wiring diagram no. 148346.
NOTE! Lockable safety switches are recommended for the whole electric
system including the fan.
NOTE! Important! The switch B (see fig.4) must point upwards before power
connection.
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Directions for use

See figure 4.
The damper is designed to be used in a dry environment in combination
with Nederman products for extracting fumes, smoke or dust. Check that the
damper motor can indicate closed and opened damper position.
10.1

Automatic regulation of damper

(Only products with sensor.)
Fit the sensor clamp on the welding cable. Before welding begins, check that
the sensor clamp is in place. The sensor closes the damper automatically
after completion of welding with a delay time of approximately 1 min. (can be
adjusted, see Delay time). The sensor responds to welding currents from 8 to
400 A. The sensor has a LED (A) which indicates when the sensor has received
a signal.
10.2

Manual regulation of damper

The damper can be opened or closed with the switch B (see picure) or with the
switch on the Fume Extractor hood.
WARNING! Risk of personal injury.
•
When the damper has been installed, check that there is enough suction
capacity in the ducting system before any work has begun. Check the fan
impeller rotation direction and the damper function.
•
The equipment must not be used in an explosive environment.
Motor Damper EN
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