8Choosing Installation SiteChapter 3. – Safety Requirements3-3. Choosing Installation SiteLocate the appliance in an area where leakage from the unit or connections will not result in damage to the areaadjacent to the appliance or to the lower floors of the structure. When such locations cannot be avoided, it isrequired that a suitable drain pan, adequately drained, be installed under the appliance.The pan must not restrict combustion air flow.DANGERLocate the vent terminal so that there are no obstacles around the termination and so that exhaustcan’t accumulate. Do not enclose the termination with corrugated metal or other materials.WARNINGAvoid places where fires 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. Usingthe incorrect voltage may result in fire or cracking.Avoid installation in places where dust or debris will accumulate. Dust mayblock the air-supply opening, causing the performance of the device fan todrop and incomplete combustion to occur as a result.Avoid installation in places where special chemical agents (e.g., hair sprayor spray detergent) are used. Ignition failures and malfunction may occur asa result.Carbon Monoxide Poisoning Hazard. Do not install this water heater in amobile home, recreational vehicle or on a boat.The water heater is designed for indoor installation only. Never install itoutdoors or in a bathroom, it may be damaged or a fire may be caused.Consult with the customer concerning the location of installation.Install the water heater in an area that allows for the proper clearances tocombustible and noncombustible construction. Consult the rating plate onthe appliance for proper clearances.Do not install the water heater in a place where it may be threatened byfalling objects, such as under shelves.The water heater must be installed in a place where supply and exhaustpipes can be installed as directed.Do not install the water heater where the exhaust will blow on outer walls or material not resistant toheat. 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.CAUTION