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SECTION III: GENERAL INFORMATION
FEATURES
This water heater contains the following features:
MAIN POWER ON/OFF SWITCH – The front panel of this water heater has a lighted ON/OFF switch, which is illuminated when the main power is turned on to indicate power to the water heater.
COMBUSTION SYSTEM
IGNITION MODULE – The ignition module provides the timing for the combustion system. A sequence of operation
ADJUSTABLE THERMOSTAT – This water heater is equipped with an adjustable thermostat to control water temperature. Hot water temperatures required for automatic dishwasher and laundry use can cause scald burns resulting in serious personal injury and/or death.
The temperature may be adjusted from about 80°F to about 180°F. The thermostat was adjusted to 120°F before the water heater was shipped from the factory. It is recommended that lower temperatures be used to avoid the risk of scalding. Refer to the “Warnings” and the section on SCALDING in “Section V - Water Connections.” It is further recommended, in all cases, that the water temperature be set for the lowest temperature, which satisfies your hot water needs. This will also provide the most energy efficient operation of the water heater and minimizes scale formation.
Setting the water heater temperature at 120°F will reduce the risk of scalds. Some states require setting the specific lower temperatures.
The top immersion well of the single bulb controller also contains the high limit (energy cutoff) sensor. The high limit switch interrupts the main burner gas flow should the water temperature reach approximately 200°F.
Should the high limit switch activate, it must be manually reset. This can be accomp lished by turning the main power on/off switch to the off position and then back to the on position and allowing the water temperature of the tank to drop below 160°F.
Contact your qualified installing contractor, service provider or manufacturer listed on the rating plate if continued high limit switch operation occurs.
SERVICE PANEL – The service panel is located behind the service panel access cover, which is located by the exhaust collector near the bottom of the water heater. This panel contains a differential pressure switch that monitors the pressure across the exhaust orifice. A collector high limit switch is used to monitor the ambient temperature between the first pass collector and the exhaust collector. This is a manually re
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