Characteristic Curves Of Heating System's Residual Head; Characteristic Curve Of The Domestic Side - PEERLESS Combi 160 Installation, Operation & Maintenance Manual

4 - FUNCTION OVERVIEW
Figure 4 - Available Head for heating circuit
Figure 5 - Domestic Water Coil Head Loss
4.4 - Characteristic
curves of heating
system's residual
head
The PC160 boiler is fi tted with a
Grundfos circulator pump. The head
available to supply fl ow through
the heating system at the boiler
connections is shown in graph form in
fi gure 4.
4.5 - Characteristic
curve of the
domestic side
The PC160 boiler, offers resistance to
the passage of domestic water (see
graph fl ow/pressure of fi gure 5). The
installer or the engineer must take
account of this in order to ensure the
correct domestic water fl ow to the
utilities.
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