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Page 21
Dryer Installation With Separate Exhaust (Preferred)
For ductwork less than 14 feet (5 m) and 2 elbows equivalent
and less than 0.3 inches (8 mm) static pressure:
NEVER exhaust the dryer into a chimney.
NEVER install wire mesh screen over the exhaust or
make-up air area.
NEVER exhaust into a wall, ceiling, or concealed space.
1. Make-up air opening from outside the building may enter the
enclosure from the top or side walls. (See Dryer Make-Up Air
Chart)
2. Enclosure (plenum) with service door. This separates the
dryer air from the room comfort air. If dryers use room air
instead of outside air, additional heat loss can be another
25 Btu/h (6.3 kcal/h) for each cubic foot per minute (cfm)
(.03m³/min.) used.
3. Zero inches (mm) clearance to combustible material allowed on
sides and at points within 4 inches (102 mm) of front on top.
4. Heat loss into laundry room from dryer front panels is about
60 Btu/h per square foot (15 kcal/h per 0.1m²).
DRYER INSTALLATION
WITH SEPARATE
EXHAUST (PREFERRED)