11
Boiler’s water-side pressure drop
NOVELLA
boilers come without a pump. A
pump must therefore be provided as part of
the installation.
Fig. 2.10
In order to choose a pump of the right size,
bear in mind the boiler’s water-side pressure
drop, as shown in the following graph.
Fig. 2.11
b
On initial start-up and at least every year,
check that all the pumps in the system
rotate freely. Sludge and limescale can
build up and cause seizure, especially
after long periods of disuse.
a
Never run the pump dry.
Fig. 2.12
P
ressur
e dr
op (m.w
.c.)
Flow rate (l/h)
Summary of Contents for NOVELLA 55-64-71 RAP
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