Gas control unit, has valve modules connected in regions of housings at corresponding housing sections so that respective housing sections form gas exit and gas entrance for respective valve modules
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Control equipment for gas burner has safety device integrated into fourth gas line connected with third gas area and main valve closes when safety device exceeds given temperature
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Rectifier circuit
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Rectifier circuit has bridge of transistors and resistances with two branches each accepting only positive or negative signal values respectively
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Fail-safe circuit for gas valve, especially piezo-driven gas valve, uses fail-safe circuit for providing output voltage to open gas valve
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Method for functional testing of a pump motor, in particular a pump motor integrated in a heating direction
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Mixing device for mixing gas and combustion air for a gas burner comprises a gas regulating unit arranged on a monolithic unit consisting of a housing and a Venturi nozzle
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Control method for gas burners
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Building central heating system with monitoring of pressure and temperature of circulated liquid for monitoring function of pressure equalization vessel in heating circuit
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Double solenoid valve with common spool
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Method for monitoring a boiler system for water and device for carrying out the method
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Circuit arrangement for determining the flame current of a burner
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Printed circuit board with display element
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Measuring arrangement and method for determining a measured variable such as temperature
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Control device for gas burners
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Control device for gas burners
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Gas flow control device
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Circuit arrangement for determining the flame current of a burner
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Method for controlling a boiler
EP1150070A2
Device to ensure the adjustments of a gas valve or a gas burner
