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SUPPORTING AND PITCHING THE VENT AND COMBUSTION AIR SUPPLY PIPE
All horizontal runs must be supported at least every five (5) feet and at joints with straps or hangers.
No sags or dips are permitted. The pipes must be saddle supported only. Do not secure the hangers
or straps tightly to the pipes to allow for expansion and contraction of the vent pipe. Maintain a 1/4 "
per foot minimum pitch upward on the horizontal vent pipe from the drain to the
terminal. This will allow the condensate to flow into the drain system and not out the terminal. Vertical
runs must be supported minimum of every six (6) feet.
The combustion air supply pipe should be pitched slightly downward at the inlet to prevent water from
entering the pipe.
JOINING PIPE AND FITTINGS
Follow the instructions accompanying the Cleaner / Primer and Cement.
Observe all cautions printed on the label.
DO NOT CEMENT THE PIPE OR FITTINGS DIRECTLY TO THE VENTER. A RUBBER BOOT AND
HOSE CLAMPS ARE PROVIDED FOR THIS PURPOSE.
CONDENSATE DRAIN
This furnace is designed to remove both sensible and latent heat from the combustion flue gas. As a
result water vapor is condensed in the secondary heat exchanger. This condensate must be drained
either to the outdoors or, where local code permits, to a sewage system. In areas where floor level
drains are not available a condensate pump must be employed. This condensate pump must be
constructed of corrosion resistant materials. It must also have an auxiliary switch which will shut down
the appliance in the event of pump failure or drain tube blockage.
DO NOT run the condensate drain to an outdoor drain or to an unheated area where the possibility of
freezing may occur.
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