American Water Heater 316888-004 GAS Line Purging, High Altitude Installations, Flooding/Freezing

a sediment trap) must be incorporated in the piping. The drip leg must be readily accessible. Install in accordance with the “Gas Piping” section. Refer to the current edition of the National Fuel Gas Code (ANSI Z223.1/NFPA 54).

GAS LINE PURGING

Air may be present in the gas lines and could prevent the burner from lighting on initial start-up. The gas lines should be purged of air by a qualified service technician after installation of the gas piping system.

HIGH ALTITUDE INSTALLATIONS

The heater is set at the factory to operate at altitudes from sea level to 3,500 ft. (1,067m). Accessory kits are available to allow the heater to operate at altitudes higher than 3,500 ft. (1,067m). These accessory kits are listed in the table below. Instructions for installing these accessories are included in the kits.

Rated inputs are suitable up to 11,000 ft. (3,352m) elevation. Consult the factory for installation at altitudes over 11,000 ft. (3,352m).

WARNING: THIS HIGH EFFICIENCY WATER HEATER IS CERTIFIED FOR USE AT AN ALTITUDE OF 11,000 Ft. (3,352 METERS). HOWEVER, FOR USE AT ALTITUDES OVER 3,500 Ft. (1,067m) THE PCB MUST BE CHANGED.

Some gas utility companies derate their gas for altitude, making it unnecessary to modify the water heater for high altitude installations. Call the local gas or utility company to verify BTU content.

FLOODING/FREEZING

If this water heater has been exposed to flooding, freezing, fire or any unusual condition, do not put it into operation until it has been inspected and approved by a qualified service technician. These conditions can result in unseen internal damage and are not subject to warranty coverage.

FILLING THE WATER HEATER

Never use this water heater unless it is completely full of water. To prevent damage to the tank, the tank must be filled with water. Open the nearest hot water faucet to allow air to escape. Water must flow from the hot water faucet before turning “ON” gas to the water heater.

To fill the water heater with water:

1.Close the water heater drain valve by turning the handle to the right (clockwise). The drain valve is on the lower front of the water heater.

2.Openthecoldwatersupplyvalvetothewaterheatertank.

NOTE: The cold water supply valve must be left open when the water heater is in use.

3.To insure complete filling of the tank, allow air to exit by opening the nearest hot water faucet. Allow water to run until a constant flow is obtained. This will let air out of the water heater and the piping.

4.Check all water piping and connections for leaks. Repair as needed.

VENTING