Section 6 − Operation; Controls - Miller Filtair MWX-D Mode D'emploi

6-1. Controls

! Only use the fume extractor to ex-
tract weld fumes. Do not use the
fume extractor to extract hot gases
(above 104° F/40° C), wood or ce-
ment dust, engine exhaust, liquid
vapors, explosive
aggressive fumes (acid), fumes
from burning objects, or fumes from
cleaning, cutting, gouging, grind-
ing, painting, flame spraying, sand
blasting, or other non-welding op-
erations.
SECTION 6 − OPERATION
1
1 Power Switch
Use switch to turn unit On and Off.
2 Filter Gauge
materials,
Gauge only indicates air pressure drop
across the filter. Replace filter when read-
ing is over 4 in. w.c. (10 x 100 Pa) or when-
ever air flow is too low to extract fumes. The
gauge should read between 0.1 and 0.5 in.
w.c. (0.25 and 1.25 x 100 Pa) at start-up
(with a clean filter).
2
3 Hood
Position the hood to minimize the effects of
cross drafts from outside air sources or
from other operations. Tilt the hood at a 45°
angle and position it as close to the welding
arc as possible but no further than 14 in. (36
cm) from the arc.
4 Damper Control
The damper allows the user to regulate air
flow. In most cases, open damper fully (as
shown).
4
3
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