Water Piping - Space Heating; General Piping Considerations - IBC SFC 199 Installation And Operating Instructions Manual

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Figure 20: Overview of piping

connections

1-20

SFC BOILER / WATER HEATERS - SFC 199

1.6 WATER PIPING - SPACE HEATING

The SFC series units include a factory installed, integral heating pump. The

pump is designed to provide adequate flow through the unit and near unit piping.

Primary/secondary piping or the use of a buffer tank / hydraulic separator is

recommended for maximum flexibility in multi zone/load applications. Piping

loads in parallel is only acceptable in systems where the minimum flow rate is

guaranteed to be higher than the minimum for the unit and where the unit's pump

is adequate to provide the required flow rate and pump head for the system.

Table 5: Boiler Pressure Drop

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.

INSTALLATION AND OPERATION INSTRUCTIONS

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