ENVIROMAC MAC1 107.1020.001 - Manual (Page 2)

ABOUT THE PRODUCT
PRINCIPLE OF OPERATION
The ENVIROMAC
 Portable 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 Snorkvac
 Flexible
Arm it is then drawn through the arm and through
the fan assembly and discharged to the inside part
of the paper 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 paper filter collects
particulate only and does not filter gases, which is
the sole purpose of the charcoal door filters.
MAJOR COMPONENTS
The ENVIROMAC
 Portable Air Cleaner is a
self-contained unit comprised of a flexible arm
(for source capture), fan and motor assembly,
paper filter, (2) carbon door filters, complete
cabinet housing and an electrical compartment
which also included a Contactor overload.
A) HIGH EFFICIENCY PAPER FILTER
This filter is a high efficiency paper filter. The
suction will deteriorate at the hood as the filter
loads up with particulate. Eventually the filter
will have to be replaced when the suction is too
low. To replace the filter, you must remove the
door closest to 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 can now put the replacement
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.
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 Volt step
down transformer for this option. The halogen
light will run off of 24 volts AC.
C) CABINET
The cabinet is built of 14-gauge steel. There are 2
doors on the unit and the discharge of the clean
air is through these 2 doors.
D) BLOWER AND MOTOR SECTION
The motor is a 1.5 HP TEFC, 120/1/60, 3600
RPM. The fan is a high-pressure fan fabricated
out of 14 gauge metal.
E) ADDITIONAL EQUIPMENT FEATURES