Sanitärmeister/in HFP key terms

Pressure measured under the stated no-flow condition, distinct from the pressure available at an outlet during actual demand.

Unwanted reverse flow associated with reduced supply pressure, requiring assessment of the actual connection and contamination hazard.

A downstream pressure condition capable of driving fluid toward the potable supply through an unprotected relevant connection.

An actual or potential connection between potable water and a nonpotable source that can create a contamination pathway.

A designed component accommodating relevant fluid-volume increase, distinct from an independent temperature or pressure relief function.

Low-use or no-flow conditions that can affect water quality and require appropriate design, operation and hygiene assessment.

The retained water barrier in a suitable fixture trap that limits drainage gases entering occupied space under the actual system conditions.

A device admitting air under specified negative-pressure conditions while closing otherwise, not providing every positive-pressure venting function.

The relevant design reference for possible sewer backup, used under the actual project and applicable drainage basis.

Equipment raising wastewater to its intended discharge arrangement, dependent on actual capacity, control, protection and maintenance requirements.

An access provision for relevant inspection or maintenance of a drainage route, positioned and used according to the actual design.

A connection where flow, pressure, geometry and the functions of adjacent system parts must be coordinated.

A fluid circulation arrangement carrying heat through the relevant heating components, distinguished from potable-water distribution and its quality requirements.

Recovery of additional combustion-product heat through water-vapor condensation under suitable equipment and operating conditions.

The designed route providing appropriate air for an appliance, whose adequacy is not established by flame appearance alone.

An appliance arrangement drawing combustion air and discharging products through its designed external connections rather than ordinary room air.

A device controlling relevant outlet gas pressure within its specified operating range, distinct from a shutoff or overpressure safeguard.

The competent documented assessment that relevant safeguards operate as required, separate from an ordinary command or visual appearance.

The approved version of technical information for the actual task, preventing different workers from following incompatible dimensions, details or instructions.

A stated reference used to relate dimensions and locations consistently, rather than an arbitrary convenient edge selected independently for each part.

The specified physical size or relationship stated on a drawing, distinct from measuring a potentially rescaled printed image with a ruler.

The chosen extent of a model or task that determines which inputs, outputs, forces and responsibilities are included in the reasoning.

A characterization of the possible dispersion associated with a measurement result, distinct from the instrument’s smallest display increment.

A defined requirement used to judge appropriate evidence, which must not be replaced by an attractive appearance or an undocumented expectation.

A defined stage requiring appropriate verification or approval before work proceeds and makes the relevant feature difficult or impossible to inspect.

An accountable process for assessing and approving a departure from specified information, rather than silently substituting a convenient product or method.

The needed resistance to instability during an intermediate construction stage, which cannot be assumed from the completed structure’s final load path.

A protective measure selected for the actual hazard, equipment, conditions and competence, rather than a universal glove, distance or generic PPE instruction.

The amount calculated for the defined work before separately specified allowances, which must use consistent dimensions and measurement conventions.

Relevant records, observations, accepted conditions and unresolved issues communicated to the responsible recipient at completion, beyond a neat visible surface.