Water Piping - Space Heating; General Piping Considerations; Overview Of Piping Options; Boiler Side Pump Curve - IBC DC Series Installation And Operating Instructions Manual

DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
1.6

WATER PIPING - SPACE HEATING

1.6.1 General Piping Considerations

The DC series boilers / water heaters include a factory installed, integral
Grundfos UP 15/58 heating pump. The pump is designed to provide adequate
flow through the boiler / water heater and near boiler / water heater piping. The
pump is pre wired.
Figure 22: Overview of piping options
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 boiler / water heater and the
boilers / water heaters pump is adequate to provide the required flow rate and
pump head for the system.
There are some important details to consider however, and this section of the
Installation and Operating Manual will walk you through them so you can enjoy a
trouble-free installation.
Table 5: Boiler side pump curve
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INSTALLATION AND OPERATION INSTRUCTIONS