Bristan ST PUMP20TN Handleiding voor installatie, bediening en onderhoud - Pagina 6
Blader online of download pdf Handleiding voor installatie, bediening en onderhoud voor {categorie_naam} Bristan ST PUMP20TN. Bristan ST PUMP20TN 20 pagina's. Standard 1.5/2.0 bar twin/single ended shower pump
Pagina afdrukken2.24 Preferred pump location: The pump must, for optimum performance, be sited
as close as possible to and never more than 4 metres from the HOT WATER
cylinder. The pump should always be sited BELOW the HOT WATER take-off
from the cylinder. The pump location is also dependent on limitations of
the static inlet and outlet heads of the installation. For guidance on limitations
and recommended location, consult the following relevant section for hot or cold
water installation.
2.25 Non-Preferred Pump Location: The pump must be located with at least
0.5 metre flooded suction at all times.
If it is necessary to position the Pump above the secondary tapping on the hot
cylinder it is fed by, the risk of introducing air will be increased.
To avoid this risk one of the two following solutions must be adopted:
The use of a Stuart Top Entry (TE) cylinder flange.
The use of a Stuart Side Entry (SE) cylinder flange, which should have the
addition of an inverted loop ("U" bend) of 350 mm minimum drop before rising
to the pump, located as close as possible to the cylinder wall. This will
ensure the pump receives an air free supply and the cylinder vents any air up the
vent pipe and not the pump feed (Fig. 3).
hot water
services
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Fig. 3
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