GAS BURNER EQUIPMENT The fuel of Heatmasters’ gas burners is propane or natural gas. The final fuel is a controlled mixture of gas and air. The gas/air mixture is controlled in order have optimal heating power. Each gas burner has its own fan that has constant air flow or it is inverter controlled. Regulation of the gas burners is carried out by HM-Rigel26 program controllers, which have several inputs and outputs that can be set to control and regulate operations and devices used in the process. The devices used in the gas burning system are, for example: flame control, oxygen control, gas-flow meter, gas-pressure switches, magnet valves, air fans and frequency converters, control valves Safety of the gas burning system Heatmasters’ gas burning equipment and its operating system are designed to fulfill all the requirements of all the existing standards. Heating process starts with the ventilation phase together with a gas-line leakage test. If there is not enough pressure in the air or gas line or the sensor finds an existing flame, the system will not start. If the pressure in the gas pipe falls below the set value, the valve closes the gas flow. Over-pressure valve will open when the pressure exceeds the set value. Flame control is done either with an optical sensor (ultraviolet) or with a flame pole that reacts when the flame hits it. If the flame goes out, the control system closes the gas flow. There are two class A type magnet valves in the incoming gas line to the burner. The valves close the gas flow in the case of a disturbance. The ignition line has one A-class magnet valve. A small compressor increases the pressure between the magnet valves to test for leakage. If the pressure in the gas or air line does not exceed the set minimum value, the power in the control circuit is switched off and the magnet valves close the gas flow causing a safety stop.