ABOUT THE PRODUCT
PRINCIPLE OF OPERATION
The ENVIROMACPortable Air Cleaner is a
media type Air Cleaner operating on a two-stage
filtration principle. After the contaminant is
picked up at the hood of the Flexible Arm it is
then drawn through the arm and through the fan
assembly and discharged to the inside part of the
high efficient washable filter. The filtered air is
discharged out the 2 doors. The 2 doors contain
charcoal, which eliminates most gases that might
be in the filtered air stream. The high efficient
washable filter collects particulate only and does
not filter gases, which is the sole purpose of the
charcoal door filters.
MAJOR COMPONENTS
The ENVIROMACPortable Air Cleaner is a
self-contained unit comprised of a flexible arm
(for source capture), fan and motor assembly,
high efficient washable filter, (2) carbon door
filters, complete cabinet housing and an
electrical compartment which also includes a
contactor overload.
A) HIGH EFFICIENCY HIGH EFFICIENT
WASHABLE FILTER
This filter is a high efficiency high efficient
washable filter. The suction will deteriorate at
the hood as the filter loads up with particulate.
Eventually the filter will have to be cleaned. To
commence cleaning the filter, you must remove
the door at the front of the machine which is
where the switch and nameplate are located. This
door is removed by removing the (2) plastic
knobs near the bottom of the door and then
pulling the door out on an angle so the door is
free from the (2) welded bolts. Then pull down
on the door to let it slide down from the top of
the door. You then remove the filter by lowering
the scissor jack with a ratchet. Then slide out the
cartridge filter. You then invert the filter upside
down and utilize the existing gasket on the filter
to make a seal and take an air hose with about 80
P.S.I. and blow the filter from the outside to
remove all of the particulate that is on the inside
of the filter. You can now put the cleaned filter
back into the machine and tighten the filter by
raising the scissor jack. Make sure the filter is
resting on the back of the filter cradle butted up
against the tab locators. Make sure that the top of
the filter fits inside the top plate that has a 1” lip
on it. Make sure the scissor jack is high enough
to allow an airtight seal on the top of the filter
gasket. Caution should be taken not to apply too
much pressure to the filter or you could squash
the filter if too much pressure is applied. Always
blow the outside of the filter with the gasket of
the filter either on the floor or a container to give
you a good seal so that the dirt does not escape
under the seal. Never blow from the inside as the
contaminant will blow all over the surrounding
area and will also force the very fine particulate
into the media. Once the filter is installed you
should start up the machine and feed 2 cups of
Precoat in a fine mist at the intake of the hood.
The Precoat increases the filter efficiency of the
washable filter and acts as a prefilter. Once you
complete the Precoat process you can now
commence welding.
B) CHARCOAL FILTERS
Both doors contain the charcoal filters. They
should be replaced 1 or twice a year in a normal
welding environment.
C) ELECTRICAL COMPARTMENT
The unit operates off 120 volts single phase
utilizing a 20-amp service outlet. The motor
draws about 17.5 amps under full load
conditions. There is a contactor and an overload
inside this compartment and the overload is set at
about 20% above the 17.5 amps. This will
automatically shut off power to the motor in the
event of an overload. This gives full protection to
the motor. The unit has a spring activated on/off
dual switch on the front of the panel. There are
facilities to put in an optional halogen light in the
hood of the arm. This requires a 120 Volt to 24-
