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GAS METER SIZE – NATURAL GASES ONLY
Be sure that the gas meter has sufficient capacity to supply the full rated gas input of the water heater as well as the
requirements of all other gas fired equipment supplied by the meter. If the gas meter is too small, ask the gas company to
install a larger meter having adequate capacity.
GAS PRESSURE REGULATION
Main line gas pressure to the water heater should be between a maximum 14.0 inch W.C. and a minimum supply
pressure as shown on the rating plate. The inlet gas pressure must not exceed the maximum value. In some
installations, a regulator sized for the input rating of the water heater will need to be installed just ahead of the inlet gas
connection to the water heater to reduce excess gas pressure or surges in gas pressure.
BEFORE PLACING THE WATER HEATER IN OPERATION, CHECK FOR GAS LEAKAGE. USE SOAP AND WATER
SOLUTION OR OTHER MATERIAL ACCEPTABLE FOR THE PURPOSE OF LOCATING GAS LEAKS.
WARNING
DO NOT USE MATCHES, CANDLES, FLAME OR OTHER SOURCES OF IGNITION FOR THIS PURPOSE.