Frsh Air Supply - Image DE 30 Instruction Manual

INSTALLATION PROCEDURES
NOTE: Air considerations are important for proper and efficient operation.
D. FRESH AIR SUPPLY
When the dryer is operating, it draws in room air, heats it, passes this air, through the
tumbler (basket), 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. As a general
rule, an unrestricted air entrance from the outdoors (atmosphere) of a minimum of one (1) square
foot (1 – 1/2 for the Model 75) 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 that the make – up air is distributed equally to the dryers.
EXAMPLE: for a bank of eight (8) dryers, two (2) openings measuring 2" × 2" (4 square feet) are
acceptable. Refer to the illustration on next page for details.
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 fumes.
Make – up air that is contaminated by dry cleaning fumes will result in irreparable
damage to motors and other dryer components.
NOTES: Component failure due to dry cleaning fumes VOIDS THE WARRANTY.
TYP IC A L IN S TA L L A TIO N S H O WIN G M A K E-UP AIR O PEN IN G S
Figure.3-3 Typical installations make up air openings
3-3