1-1
INSTALLATION
SFC COMBI BOILERS SFC-99, SFC-125
1.0 INSTALLATION
1.1 GENERAL
SFC series gas-red modulating units are low pressure, fully condensing units
with variable input ranges (see specication chart - page 3) designed to be used
for domestic (residential) purposes. Domestic use is considered to be an average
annual gas usage of 4000 m3 for natural gas or ± 1500 m3 for propane. The
units are approved as “Category IV” vented appliances using Direct Vent (sealed
combustion).
Figures 1a and 1b show outer case dimensions and piping. Use this diagram to
nd a suitable location for the unit. See also Section 1.3 Location.
Figure 1a: Dimensions / Connections for SFC Series
NOTE
When using the SFC units
for non-domestic purposes
the warranty conditions
and maintenance periods
described in this document
are no longer valid. Please
contact IBC for advice.
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