
If replacing an electric or direct-fired gas or oil water heater with the IBC water heater, disconnect the
water piping and either strip back to the nearest main line and cap off, or re-use for the new tank.
Electric Water Heater.
Disconnect the electrical supply wiring and remove back to the breaker
panel or terminate in an approved junction box. Work must conform to all applicable electrical
codes.
Direct Fired Gas Water Heater.
Disconnect the gas supply line to the heater, strip back to the
nearest mains piping and cap off. Remove vent connector back to the common venting system
and seal off or abandon as applicable. Work must conform to all applicable codes.
Direct Fired Oil Water Heater.
Disconnect the oil supply line to the heater, strip back to the tank
or nearest mains piping and cap off. If oil heating system is to be abandoned completely, ensure
proper removal and disposal of old oil tank and remaining fuel oil. Remove vent connector back to
the common venting system and seal off or abandon as applicable. Work must conform to all
applicable codes.
Caution
Do not operate the IBC water heaters in areas where the water pH is above 8.0 or below 6.0,
and/or with chloride concentrations greater than 80 parts per million (ppm). IBC’s standard
warranty does not cover problems caused by improper water pH or excessive levels of
chlorides.
2.8 Water quality
Improper water quality will reduce the expected life of the water heater. Hard water, sediment, high or low
pH, and high levels of chlorides in the domestic water should be avoided. Sediment and hard water will
eventually coat the heating coil inside the water heater and reduce the rate of hot water production and
may eventually cause a failure. High or low pH and/or high chloride concentrations will cause corrosion
and eventually failure. A filter is strongly recommended where sediment is present in the water. We
recommend a water softening system for areas with hard water. In areas where the water quality is
unknown, a water quality test should be performed.
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Section: Pre-installation overview
Summary of Contents for IWT 119
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