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Illus. C (refers to the previous page 5-5) shows the minimum cross-section area for horizontal multiple dryer venting.
These figures must be increased in proportion if the main duct run from the last dryer to where the exhaust has
numerous elbows or is unusually long.
IMPORTANT:
For extended duct work runs, the cross-section area of the duct can only be increased to an
extent. For extended duct work runs, a professional HVAC firm should be consulted for
proper venting information.
VERTICAL VENTING
ILLUS. D
The maximum length of venting from the last dryer to where it exhausts...
Vertical venting must not exceed 2 feet - this calculation compensates for the sue of a maximum of three (3)
IMPORTANT:
No more than four (4) dryers maximum should be connected to one (1) main common duct
with a vertical run.
NOTE:
Distance between dryer single ducts being connected to the main common duct must be a minimum of
31-3/8" (dryer width).
Ducts work should be laid out in such a manner where allowances are made at rear area of the dryer for
removal of rear service panels or guards.
Illus. D shows the minimum cross-section area for vertical multiple dryer venting. These figures must be increased in
proportion if the main duct run from the last dryer to where it exhausts has numerous elbows or is unusually long.
IMPORTANT:
For extended duct work runs, the cross-section area of the duct can only be increased to an
extent. For extended duct work runs, a professional HVAC firm should be consulted for
proper venting information.
COMMERCIAL MULTI LOAD DRYERS - MDG30, MC2, PC2, PNA, and MNA
elbows including the two (2) elbows creating the 180° (turned down-
ward outside outlet protection.
07/02
6-6
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