Glossary
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Hya-Duo D FL
Glossary
Accumulator
Pressure losses may occur in the piping system
downstream of the fire-fighting system which may
be caused by leakage of small quantities of water.
The accumulator serves to compensate pressure
losses and minimises the frequency of starts of the
fire-fighting system.
Back-up system
The part of the fire-fighting system / break tank
package booster set for fire-fighting which
ensures the supply of fire-fighting water in the
event of a fire if the duty system fails (see also
duty system).
Certificate of decontamination
A certificate of decontamination is enclosed by the
customer when returning the product to the
manufacturer to certify that the product has been
properly drained to eliminate any environmental
and health hazards arising from components in
contact with the fluid handled.
DIN 14462
The fire-fighting systems / break tank package
booster sets for fire fighting must comply with the
German standard for water conduits for fire
extinguishing.
Duty system
The active part of the fire-fighting system / break
tank package booster set for fire-fighting which
ensures the supply of fire-fighting water in the
event of a fire (see also back-up system).
IE3
Efficiency class to IEC 60034-30: 3 = Premium
Efficiency (IE = International Efficiency)
Manual mode
Direct operation on the power supply network,
independently of the control unit.
Pump activation
Pump activation means that a pump is started up
by a starting signal from the pressure switch, from
a wall hydrant (limit switch) via remote ON/OFF, or
from the broken wire and short-circuit monitoring
relay.
Switchgear and controlgear assembly
Control cabinet with one or several control units /
switchgears and electrical equipment.
