6
Installation #1
With this installation, a back draft damper (optional) is inserted into the
heat run before the plenum of the existing furnace to prevent air from the
existing furnace to blow back into the furnace when it is not in use. When
a back-draft damper is employed, it should be located as close to the exist-
ing furnace plenum as practical.
INSTALLATION #2
Extending the hot air duct from the furnace into the existing plenum will
help direct the fl ow of air from the furnace as well as the fl ow in the existing
furnace. Ducting entering the existing plenum at an angle (approximately
45 degrees) will facilitate air fl ow from the furnace while diverting air from
the existing furnace.
INSPECT FLUE PIPES, FLUE PIPE JOINTS AND FLUE
PIPE SEALS REGULARLY TO ENSURE THAT SMOKE
AND FLUE GASES ARE NOT DRAWN INTO, AND CIR-
CULATED BY, THE AIR CIRCULATION SYSTEM.
INSTALLATION #3
Th
e baffl
e on this system should be made the full width of the furnace plenum
in order to properly direct the air into the distribution ducts.
INSTALLATION EXAMPLES