John-wood Noritz N-069M-DV User Manual download pdf (Page 45)

Vertical Vent Termination

• Terminate at least 6' from the

combustion air intake of any

appliance, and 3' from any

other building opening, gas

utility meter, service regulator

etc.

• Enclose exterior vent systems

below the roof line to limit

condensation and protect

against mechanical failure.

• When the vent penetrates a

floor or ceiling and is not

running in a fire rated shaft, a

firestop and support is required.

• Terminate the vent system at

least 2' above, but not more

than 6' above the roof line, or

according to the vent pipe

manufacturer's instructions.

• Provide vertical support every

12' or as required by the vent

pipe manufacturer's instructions.

•Slope the horizontal vent 1/4"

downwards for every 12".

• Do not vent straight upwards.

Always have a horizontal section

of venting.

• Install a condensation drain in

the horizontal section of the

venting.

Appliance

Adapter

Firestop

Firestop/

Support

Roof

Flashing

RainCap

Exhaust

Intake Air

Hanger

Strap

Elbow

Condensation

Drain (Install

According to

Local Codes)

1-2'

Min.

(Combustible material)

Intake pipe

External wall,

combustible material

• Inspection openings are suggested for the vent intake and exhaust

pipes if they are installed in an enclosure. These openings should

be near the entrance and exit of the vent into the enclosure.

• These openings should be 18" x 18".

Suggested inspection openings (18" x 18")

When the intake/exhaust pipes pass through an enclosed space:

Ceiling

Sloping down toward vent terminal

Exhaust pipe

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John-wood Noritz N-069M-DV User Manual Page 45

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