Navien KDB-203 STC, Инструкция по эксплуатации

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7
The Structure of the boiler
The descriptions of the name
RESET BUTTON : a switch for the restart when the “MISFIRE ”, “OVERHEAT” lamp is on
POWER BUTTON : a device for the boiler’s power on/off
ROOM THERMOSTAT : a device for controlling the temperature of the heating water.
IGNITION TRANSFORMER : a high voltage generator(to ignite the burner)
FLAME DETECTOR : a device for identifying whether or not there is a flame in the fire box.
EXHAUSTING VALVE : a device for removing air in fuel.
ELECTRONIC PUMP : a device for spraying fuel.
OIL FILTER : a device for filtering impurities in fuel.
CIRCULATION PUMP : a heating apparatus which circulates warm water.
EXPANSION TANK : Absorbs pressure generated in the pipe by the expansion of heating water
due to increasing temperature of heating water.
Maintain the water volume in the boiler at a constant by low water level sensor.
AIR FLOW CONTROL : for the adjusting of airflow in the blower.
AUTO VALVE : This spare valve is to supply water manually when the auto water filling valve is
disabled.
Model : KDB-203/253/353 STC
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