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Froling FHG User Manual

Froling FHG
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Safety
Froling GmbH, Industriestraße 12, 4710 Grieskirchen, AUSTRIA Page 19
www.froling.com B0600008_US
2
2.3.3 Ventilation of boiler room
During the installation of your boiler provision was made by the installer
to provide a source of combustion air for the boiler. Maintaining this
combustion air source is critical for proper operation of your boiler, do
not close off, block or otherwise obstruct the combustion air source for
your boiler. If you have questions regarding the combustion air source
please contact your installer.
In addition to local codes and regulations a minimum cross section of
combustion air and exhaust air shall be 28 sq.in. (180 cm²) each. Mind
open cross section if gratings or fins are used!
IMPORTANT for Canada: In accordance to ANSI/NFPA outside air
requirements of 1 sq. inch per 1,000Btu/hr.
2.3.4 Installing the heating system
The entire heating system has to be designed according relevant nation-
al and local codes. The nominal power of the Central Heating Boiler shall
be corresponding to the calculated heat demand for all heating applianc-
es connected to the heating system both in summer and winter time.
The heating system must be able to carry all heat produced by the Cen-
tral Heating Boiler and additional heat source, if applicable. The whole
heating system as well as all heating zones has to be hydraulically bal-
anced.
Special arrangements have to be provided for initial filling or re-filling
and bleeding of all heating zones. Flow-check valves and zone-valves
have to be installed for proper adjustment of water flow rates. All piping
must be water and air tight and insulated safely.
If there is a risk of freezing for parts of the heating system all water
within these heating zones has to be frost-proof!
Minimum Return water temperature
If the return water temperature is below the minimum, a part of the
heated water output flow shall be mixed in.
Installing the boiler without a proper valve or loading unit providing a
minimum return water temperature (e.g. Termovar loading valve) can
cause condensation water and fuel residue to combine to form an ag-
gressive condensate, leading to damage to the boiler!
Minimum return water temperature is 142°F (61°C)
Combination with Thermal Storage System
Your FHG boiler has been installed with a Thermal Storage System, this
system may require periodic maintenance. Please review the periodic
maintenance requirements of your thermal storage system with your in-
staller.

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Froling FHG Specifications

General IconGeneral
BrandFroling
ModelFHG
CategoryBoiler
LanguageEnglish

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