Vent Information And Diagrams; Vent Guidelines; Vent System Confi Guration - Heatilator NB3630M Owner's Manual

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Vent Information and Diagrams

A. Vent Guidelines
WARNING
Fire Risk
Asphyxiation Risk
This appliance requires the specifi ed pipe
for operation.
• Incorrect pipe may cause spillage,
condensation and overheating.
These models require the following size B-Vent double wall
vent pipe.
Model
NB3630M/NB3630MI/NB3933M/NB3933MI
NB4236M/NB4236MI/NB4842M/NB4842MI
• Follow pipe manufacturer's installation guidelines when
installing the appliance.
WARNING
Fire Risk
Explosion Risk
Asphyxiation Risk
Do NOT connect this gas appliance to a
chimney fl ue serving a separate solid-fuel
or gas burning appliance.
• Vent this appliance directly outside.
• Use separate vent system for this
appliance.
May impair safe operation of this appliance or
other appliances connected to the fl ue.
CAUTION
ALL vent configuration specifications MUST be
followed.
• This product is tested and listed to appliance and
vent manufacturer's specifi cations.
• Appliance performance will suffer if specifi cations
are not followed.
Pipe Size
5 in. (127 mm)
5 in. (127 mm)
Heatilator • Novus BV-Mesh • 4031-553 Rev F • 11/07
B. Vent System Confi guration
• Rise to Run Ratio: 2:1
• Maximum Total Horizontal Run: 30 ft (9.14 m)
• Minimum Total Vertical Rise: 12 ft (3.66 m)
• Maximum Total Vertical Rise: 60 ft (18.29 m)
• Maximum Number of Elbows: Four 90° or Eight 45°
12 ft (3.66 m) min.
60 ft (18.29 m) max.
Figure 5.1 Vertical Termination Clearances
Vent supports
are per vent
manufacturer's
specifications.
Maximum horizontal run is 50% of
vertical. Horizontal run cannot be
more than 30 ft. (9.14 m).
Figure 5.2 Maximum Horizontal Run
Minimum
clearances are
per vent
manufacturer's
specifications
Metal
plumber's strap
secured to
framing
Vent supports are per
vent manufacturer's
specifications
Metal
Plumbers'
Strap
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