John Wood Noritz N-069M_N-069S - Manual (Page 40)

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• Install the exhaust vent so that there are no obstacles around the
termination and so that exhaust can't accumulate. Do not enclose
the termination with corrugated metal or other materials.
• Do not install the water heater where the exhaust will blow on
outer walls or material not resistant to heat. Also consider the
surrounding trees and animals.
The heat and moisture from the water heater may cause discol-
oration of walls and resinous materials, or corrosion of aluminum
materials.
• Do not locate the vent termination directed towards a window
or any other structure which has glass or wired glass
facing the termination.
• Avoid installation above gas ranges or stoves.
• Avoid installation between the kitchen fan and stove. If oily
fumes or a large amount of steam are present in the installation
location, take measures to prevent the fumes and steam from
entering in the equipment.
• Avoid installation in places where dust or debris will accumulate.
Dust may block the air-supply opening, causing the perfor-
mance of the device fan to drop and incomplete combustion to
occur as a result.
• Install in a location where the exhaust gas flow will not be
affected by fans or range hoods.
• Take care that noise and exhaust gas will not affect neighbors.
• Make sure that the location allows installation of the exhaust
vent as specified.
• Avoid installation in places where special chemical agents
(e.g., hair spray or spray detergent) are used.
Ignition failures and malfunction may occur as a result.
• For outdoor installation, use the VC4 outdoor vent cap.
If it is necessary to vent above the roof line in an outdoor installation,
also use the base of the VC4 vent cap for rain protection.
• Avoid installation where the unit will be exposed to excessive
winds.
• Before installing, make sure that the vent termination (or the vent
cap in an outdoor installation) will have the proper clearances
according to the National Fuel Gas Code (ANSI Z223.1).