Structural unit

Abstract

The disclosed structural unit (1, 2) is part of a gas-powered heating system and comprises a valve (9) which can be controlled by a spindle (10) that includes interlocking means. The spindle (10) canbe controlled from the outside using a tool that can engage the interlocking means. According to the invention, blocking means (18, 27) are provided which maintain the tool (21) engaged with the spindle (10) such that the valve can be controlled without using any extraneous tools.

Description

technical field [0001] The invention relates to a structural unit for a compact heating system having at least one valve which can be controlled manually by means of a shaft, the shaft of which has a form-fit connection on the end side, wherein the form-fit connection can be used to The tool that the coupling engages externally controls the shaft. Background technique [0002] Building blocks of this type currently have many variations in the prior art. They are used to provide hot water for house heating and / or additionally to generate hot non-potable water. They are usually part of a gas heating system in which water is heated in the primary circuit by gas burners. However, these structural units can also be part of an oil-powered heater, part of a domestic work station, etc. In such a structural unit, a certain number of valves, sensors and heat exchangers are usually arranged in addition to the circulating pump. Such structural units generally have manually actuated ...

AI Technical Summary

Problems solved by technology

[0004] However, practice has shown that, on the one hand, it is often difficult for a layman to handle the wrench on the underside of the heating system;

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