Maytag MC2 - Manual (Page 22)

B. FRESH AIR SUPPLY
When the dryer is operating, it draws in room air, heats it, passed this air through the tumbler and
exhausts it out of the building. Therefore, the room air must be continually replenished from the
outdoors.
If the make-up air is inadequate, drying time and drying efficiency will be adversely affected.
Ignition problems and sail switch "fluttering" problems on gas dryers may result and you also could
have premature motor failure from overheating.
Air supply (make-up air) must be given careful consideration to assure proper performance of each
dryer. An unrestricted source of air is necessary for each dryer. An air flow of 1750 CFM must be
supplied. As a general rule, an unrestricted air entrance from the outdoors (atmosphere) of a
minimum of three (3) square feet is required for each dryer.
If registers or louvers are installed over the openings, then the area must be increased.
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 than the make-up air is
distributed equally to the dryers.
Example: For a bank of six (6) gas dryers, two (2) openings measuring 3 feet by 3 feet (9 square feet)
are acceptable. (Figure 6)
Allowances must be made for remote or constricting passageways or where dryers are located at
excessive altitudes or predominantly low-pressure areas.
IMPORT ANT: Make-up air must be provided from a source free of dry cleaning solvent fumes.
Make-up air that is contaminated by dry cleaning fumes will result in irreparable
damage to motors and other dryer components.
NOTE: Component failure due to dry cleaning solvent fumes VOIDS THE WARRANTY.
MAKE UP AIR OPENINGS
TYPICAL INSTALLATION SHOWING MAKE-UP
AIR OPENINGS
Figure 6
18