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To compensate for the use of registers or louvers used over the openings, this make-up air
must be
increased by approximately thirty-three percent (33%). Make-up air openings
should not be
located in an
area directly near where exhaust vents exit the building.
It is not necessary to have a separate make-up air opening for each dryer. Common make-up air openings
are acceptable. However, they must be set up in such a manner that the make-up air is distributed equally
to
ALL
of the dryers.
EXAMPLE:
For a bank of four (4) dryers, two (2) unrestricted openings measuring 2 feet by
1-1/2 feet (6 square feet) is acceptable.
Allowances
must be
made for remote or constricting passageways or where dryers are located at excessive
altitudes or predominantly low pressure areas.
IMPORTANT:
Make-up air
must be
provided from a source free of dry cleaning solvents fumes. Make-up
air that is contaminated by dry cleaning solvent fumes will result in irreparable
damage to the motors and other dryer components.
NOTE:
Component failure due to dry cleaning solvent fumes will VOID THE WARRANTY.
