American Water Heater 40-42K BTU Installation Checklist, Water Heater Location, Vent Termination

INSTALLATION CHECKLIST

Water Heater Location

•Centrally located with the water piping system. Located as close to the gas piping and vent pipe system as possible.

•Located indoors and in a vertical position. Protected from freezing temperatures.

•Proper clearances from combustible surfaces maintained and not installed directly on a carpeted floor.

•Provisions made to protect the area from water damage. Drain pan installed and piped to an adequate drain.

•Installation area free of corrosive elements and flammable materials.

•Sufficient room to service the water heater.

Vent Termination

Concentric

•12” Min. above grade/snow level.

•Slope exhaust outlet/air inlet piping at a downward pitch of 1/8” per 5ft. away from the water heater.

Horizontal

•Correct relationship - outlet to inlet.

•12” Min. above grade/snow level.

•Slope 2” & 3” horizontal piping at a downward pitch of 1/8” per 5ft. away from the water heater.

•Away from corners, other vents, windows, etc.

Vertical

•Inlet - 12” Min. above roof/snow level.

•Correct relationship - outlet to inlet.

Gas Supply and Piping

•Gas supply is the same type as listed on the water heater data plate.

•Gas line equipped with shut-off valve, union, and drip leg.

•Approved pipe joint compound used.

•Adequate pipe size and of approved material.

•Chloride-free soap and water solution or other approved means used to check all connections and fittings for possible gas leaks.

Vent Pipe System

•Vent pipe and fittings of approved material.

•Acceptable size, length, and number of elbows on air inlet pipe.

•Acceptable size, length, and number of elbows on exhaust outlet pipe.

•Installed in accordance with prevailing provisions of local codes, or in the absence of such, National Fuel Gas Code, NFPA 54, ANSI Z223.1-Current Edition.

•Slope 2” & 3” horizontal piping at a downward pitch of 1/8” per 5ft. away from the water heater.

•Not obstructed in any way.

Water System Piping

•Temperature and pressure relief valve properly installed with a discharge line run to an open drain and protected from freezing.

•All piping properly installed and free of leaks.

•Heater completely filled with water.

•Closed system pressure build-up precautions installed.

•Tempering valve installed per manufacturer’s instructions, when applicable. (See page 16.)

Electrical Connections

•Unit connected to a dedicated power supply.

•Unit connected to a 120V electrical supply.

•Proper polarity.

•Water heater properly grounded.

•Installed in accordance with prevailing provisions of local codes, or in the absence of such, the current edition of the National Electric Code, ANSI/NFPA 70.

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