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24632-0-0508Page 22
CUTTING THE VENT TUBES
3
Attach 5" (127 mm) diameter air inlet tube onto the collar of air drop
assembly. Be sure 5" (127 mm) diameter air inlet tube is placed as
far as possible onto the collar of the air drop assembly. Mark the
5" (127 mm) diameter air inlet tube 1 7/16" (36.5 mm) beyond the
mounting surface for the outside wall plate. Remove 5" (127 mm)
diameter air inlet tube from collar of air drop assembly.
4
Attach 3" (76 mm) diameter flue outlet tube onto flue outlet collar
on combustion chamber. Be sure 3" (76 mm) diameter flue outlet
tube is placed as far as possible onto the collar of flue outlet.
Mark the 3" (76 mm) diameter flue outlet tube 2 7/8" (73.0 mm)
beyond the mounting surface for the outside wall plate. Remove
3" (76 mm) diameter flue outlet tube from collar of flue outlet on
combustion chamber.
5
Mark or wrap tape completely around the tubes at the marked points
to help in making a true cut. Do not crimp or enlarge tubes.
MARKER
FLUE OUTLET TUBE
COLLAR OF
FLUE OUTLET
With the furnace installed on wall the 5" (127 mm) diameter air inlet tube and 3" (76 mm) diameter flue outlet tube are to be marked
and cut using the following procedure. After cutting the tubes, each tube should be individually checked for proper length before
installing by fitting in place.