Noritz N-069M-DV-CA Guide De L'utilisateur Et Manuel D'installation page 119

Vent Terminal Installation Precautions
Note the following vent terminal installation requirements
• Do not install the vent terminal indoors
• Install with the proper length protruding through the wall
Proper installation. The
red line can be seen,but
the red rectangle cannot
be seen from the outside.
• Avoid installing the terminal where obstacles will block it
Vent terminal
• Do not install the vent terminals vertically in-line.
Do not cover the vent terminal with any type of
protective screen or enclosure. In-line or blocked
terminals can cause abnormal combustion resulting
inundesired performance from the water heater.
Vent terminal models
• Use only the following models of Noritz
vent terminals with this unit.
• VT4-TL
(for long vent runs)
(to be installed directly
• VT4-TS
on top of the appliance)
• Vent terminal size variations are listed in the table below.
Choose the model according to the wall thickness required.
Model
VT4-TL-5 90mm (3.5") to 130mm (5")
VT4-TL-8 130mm (5") to 210mm (8")
VT4-TL-14 210mm (8") to 370mm (15")
VT4-TL-27 370mm (15") to 690mm (27")
not far
enough
Snow
drift
Wall thickness (in.)
• Install the vent terminal with a downward slope
downward
slope
too far
• Clearance from vent terminal.
If multiple units are installed,
terminals must be separated by
Vent terminal
300mm (12") or more in a plain view
regardless of the vertical clearance.
300mm (12") or more
Tree
Vent terminal
Vertical position not allowed.
Vent system installation example
Elbows
Intake pipe
Use a listed Category III vent adapter
to connect the flue collar to the vent
system. Use Category III vent pipe
for the entire length of the exhaust
pipe.
upward
slope
• Avoid storing hazardous
objects near the terminal
Gasoline
Vent terminal
Vent terminal
Straight pipe
Exhaust
pipe
Elbow
Main unit
Gas
300mm (12")
or more
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