5
Caution
• The water heater is designed for external installation only.
Never install it indoors or in a bathroom.
• Consult with the customer concerning the location of installation.
• Avoid places where fi res are common, such as those where gasoline,
benzene and adhesives are handled, or places in which corrosive
gases (ammonia, chlorine, sulfur, ethylene compounds, acids) are
present.
This may cause incomplete combustion or failures.
• Locate the water heater 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.
• Install the water heater in an area that allows for the proper clearances
to combustible and noncombustible construction.
Consult the rating plate on the appliance for proper clearances.
• Do not install the water heater in a place where it may be threatened
by falling objects, such as under shelves.
• 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 discoloration
of walls and resinous materials, or corrosion of aluminum materials.
• Avoid installation in places where dust or debris will accumulate.
Dust may block the air-supply opening, causing the performance of
the fan motor to drop and incomplete combustion to occur as a result.
• Install in a location where the exhaust gas fl ow will not be affected by
fans or range hoods.
• Take care that noise and exhaust gas will not affect neighbors.
• 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.
5.
Choosing Installation Site
* Locate the appliance in an area where leakage from the unit or connections will not result in damage
to the area adjacent to the appliance or to the lower fl oors of the structure. When such locations cannot
be avoided, it is recommended that a suitable drain pan, adequately drained, be installed under the
appliance. The pan must not restrict combustion air fl ow.
Internal
installation
