Pentax N-0751M-OD installation manual Horizontal Vent Termination, Vertical Vent Termination

Horizontal Vent Termination
		•	Terminate at least 300mm (12") above
	Hanger		grade or above snow line.
Elbow	Straps	•	Terminate at least 2.1m (7') above a public
			walkway, 1.8m (6') from the combustion air
	Wall	Termination	intake of any appliance, and 0.9m (3') from
			any other building opening, gas utility meter,
	Slope vent Thimble
	Downwards		service regulator etc.
		•	Terminate at least 0.9m (3') above any
	**0.3m (1') Min. -		forced air inlet within 3m (10'), 1.2m (4') be-
Appliance	0.9m (3') Max.		low, 1.2m (4') horizontally from or 0.3m (1')
Adapter*			above any door, window, or gravity air inlet
	* Adapter not required when		into any building per National Fuel Gas Code
			ANSI Z223.1/NFPA 54.
	using Noritz N-Vent.
	** 0.3m (1') minimum recommended,	• Slope the horizontal vent 1/4" downwards
	but not required. Avoid installing		for every 300m (12").
	elbow directly on flue.
		• Use a condensation drain if necessary.
		• In the Commonwealth of Massachusetts a
			carbon monoxide detector is required for all
Vertical Vent Termination			side wall horizontally vented gas fuel equip-
			ment. Please refer to Technical Bulletin TB
	Rain
	Cap		010606 for full installation instructions.

Storm
Collar	Roof	• Terminate at least 1.8m (6') from the combus-
	Flashing	tion air intake of any appliance, and 0.9m (3')
Roof		from any other building opening, gas utility
Jack		meter, service regulator etc.

Firestop/

Support

	Hanger	Firestop
Elbow	Strap
	Condensation
	Drain (Install
**0.3m (1') Min. -	According to
0.9m (3') Max.	Local Codes)
	Appliance
	Adapter*
	* Adapter not required when
	using Noritz N-Vent.
	** 0.3m (1') minimum recommended,
	but not required. Avoid installing
	elbow directly on flue.

•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 0.6m (2') above, but not more than 1.8m (6') above the roof line, or according to the vent pipe manufacturer's instructions.

•Terminate the vent system at least 0.6m (2') above any portion of a building located within 3m (10') horizontally.

•Provide vertical support every 3.6m (12') or as required by the vent pipe manufacturer's in- structions.

•Slope the horizontal vent 1/4" for every 300m (12") towards the drain tee.

•Do not vent straight upwards.

Always have a horizontal section of venting.

•Install a condensation drain in the horizontal section of the venting.

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