Okofen 1000, Installation Manual

Page: 7 / 32

4 Requirements for an accumulator
4.1 Guidelines and Standards for an accumulator
The current versions of the relevant national standards must be observed.
Austria – H 5195-1, published 01/12/2010
Prevention of damage in closed-circuit hot water heating systems.
•
Contamination:
Dirt and other contaminants represent significant contributory factors to corro-
sion. The introduction of contamination into the heating system must therefore
be prevented. This must be taken into consideration as early as the planning
stage.
•
The operator of the heating system is responsible for conducting tests on the
condition of the heating water.
•
Such tests must be conducted no less than every 2 years on heating systems with
a water capacity of up to 5000 litres and no less than once a year on systems
with a capacity of over 5000 litres.
•
Flushing water:
The water used for flushing the system prior to initial startup or re-commissioning
must be clear, odourlessand free of suspended matter below 25
µ
m.
•
A system report must be prepared for every system after initial startup and re-
commissioning.
•
Replenishing water must be odourless and free of suspended matter below 25
µ
m. If the annual amount ofreplenishing water exceeds the capacity of the expan-
sion tank, the following parameters must be compliedwith.
Water capacity Degree of German hardness
Up to 1000 litres Up to 17
Über 1000 – 5000 litres Up to 6
Über 5000 litres Up to 0,5
4 Requirements for an accumulator 7
Installation manual