14
MZ INSTALLATION & MAINTENANCE
VERTICAL CONCENTRIC VENT
9505 Vertical
Flue Adapter
These parts are needed to fit the vertical-vent
system to the MZ. The internal flue pipe that ships
with the MZ is sized for the horizontal flue system
and side-by-side two-pipe vent systems. They are
used with the MZ more often than the vertical,
concentric vent system is. When the vertical-vent
system is used, the MZ’s inner vent pipe must be
replaced with one that matches the size used for
the vertical vent system
This Pipe
replaces
this pipe
MZ HEATING SYSTEM
MZ HEATING SYSTEM
9531 Vertical
Vent Kit
Pipe-support ring
Through-roof terminal
9505 (See above) and 9505 (See page 13)
MZ
HEATING SYSTEM
Intake
Pipe 1”
Overhang
6” Minimum
Slope Venting Back to System a
Minimum 6% Grade (5/8” per foot)
4.33” or (138mm)
Terminal must exit a
minimum of 18”
above the snow line
mandated by local
code or National Fuel
Gas Code.
INSTALLATION AND TECHNICAL
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