Safety
Design Information
Page 12
B 067 00 09
v
2
2.5.3
Ventilation of boiler room
The openings for the supply air and the exhaust air should be arranged
as close to opposite each other as possible to achieve a good thermal
draught effect.
Draw in the supply air directly from outside. Expel the exhaust air
directly outside.
Provided they are not contradicted by the relevant building regulations
room where the boiler is to be installed, the following standards apply:
Applicable standards:
- TRVB H 118
- ÖNORM H 5170
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
2.5.4
Heating System Installation/ Standards
The following standards govern the installation of heating systems:
Applicable standards:
ÖNORM / DIN EN 12828 Heating Systems in Buildings
Storage tank
NOTICE
A storage tank with the proper dimensions will guarantee the best boiler
operating values during the entire heating period.
Please contact your installer or Fröling directly for the right measurements for
the storage tank.
Return lift
If the hot water return is below the minimum return temperature, some
of the hot water outfeed will be mixed in.
CAUTION
Risk of dropping below dew point/condensation formation if operated
without return lift.
Condensation water forms an aggressive condensate when combined
with combustion residue, leading to damage to the boiler.
Regulations stipulate the use of a return lift.
§
§
