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IBC SFC-125 User Manual

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INSTALLATION AND OPERATION INSTRUCTIONS
1-20
SFC COMBI BOILERS SFC-99, SFC-125
1.6 WATER PIPING - SPACE HEATING
1.6.1 General Piping Considerations
The SFC series units include a factory installed, integral heating pump. The
pump is designed to provide adequate ow through the unit and near unit piping.
Primary/secondary piping or the use of a buffer tank / hydraulic separator is
recommended for maximum exibility in multi zone/load applications. Piping
loads in parallel is only acceptable in systems where the minimum ow rate is
guaranteed to be higher than the minimum for the unit and where the unit’s pump
is adequate to provide the required ow rate and pump head for the system.
Table 5: Boiler pressure drop - Pump runs between 50% to 100% capacity to establish
pressure difference across boiler circuit
A=boiler pressure drop
The SFC series modulating units are designed for use within a closed loop,
forced circulation, low pressure system. A 30 PSI pressure relief valve (3/4” NPT)
is supplied.
Figure 20: Overview of piping
connections

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IBC SFC-125 Specifications

General IconGeneral
BrandIBC
ModelSFC-125
CategoryBoiler
LanguageEnglish

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