Safety
Design Information
Fröling Heizkessel- und Behälterbau Ges.m.b.H, Industriestrasse 12, A-4710 Grieskirchen
Page 11
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2.3.3
Ventilation of boiler room
The openings for the supply air and the exhaust air should be arranged
as nearly opposite each other as possible to achieve a good thermal
draught effect.
The supply air must be drawn in directly from outside. The exhaust
air must be discharged directly outside.
Unless otherwise provided by the relevant building regulations for the
room where the boiler is to be installed, the following standards apply:
Applicable standards:
- TRVB H 118
- ÖNORM H 5170
Rule of thumb:
Provide a supply air cross-section of 2 cm
2
per kW of boiler rated output,
as per ÖNORM H 5170, but a total cross-section of at least 200 cm
2
2.3.4
Installing the heating system / Standards
The boiler shall only be operated within a pressurized (closed) hydraulic
system.
The following standards govern the installation of heating
systems:
Applicable standards:
ÖNORM / DIN EN 12828 Heating Systems in Buildings
The following prior standards still apply:
Austria:
- Closed systems as per ÖNORM B 8131
Germany:
- Closed systems as per DIN 4751 Part 2
2.3.5
Combination with storage tank
N O T E
It is not necessary to use a storage tank for the system to run smoothly.
However we recommend that you use it with a storage tank, as this allows
you to achieve continuous reduction within the ideal performance range of the
boiler.
Please contact your installer or a Fröling technician directly for the right
measurements of the storage tank.
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