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3. Condensed water formed by
combustion, will run back to the
unit, and may overflow from the
condensation pan if pipes are
longer then 8 feet. Therefore, pipes
exceeding these lengths should be
made to drain to the outside by
giving their horizontal portions 3˚ or
more downward and outward slope.
4. Wherever the air intake hose and exhaust pipe
run sideways, try to have the exhaust pipe on top
(to prevent the air intake hose from sagging onto
the exhaust pipe).
QUALIFIED INSTALLING AGENCY
The installation must conform to local codes, in the
absence of local codes, the installation must
conform with American National Standard (National
Fuel Gas Code) known as NFPA 54 and ANSI
Z223.1.1992.
Available from the American National Standards
Institute, Inc., 1430 Broadway, New York, N.Y. 10018
or from the National Fire Protection Association,
470 Atlantic Avenue, Boston, Mass. 02210.
3˚ slope(approximate)
Exhaust pipe
Air intake hose
– 60 –
Exhaust pipe
Air intake hose
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