Baxi Solarflo Installation Manual page 14

Fig. 15
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© Baxi Heating UK Ltd 2008
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9.0 Installation of pump station
9.2 Identification of Components (Fig. 15)
The main components of the pump station are:
– Two isolating valves (Fig. 15, Item 1 & 2) with integral
3
thermometers which display the solar primary flow
and return temperatures.
4 – A safety group (Fig. 15, Item 3, supplied unconnected),
which protects the solar primary circuit.The pressure
relief valve and pressure gauge are integrated in the
safety group.
– A non-return valve in both feed and return prevents
the possibility of gravity circulation in the solar
primary circuit.
– A solar circulation pump (Fig. 15, Item 4).
– A flow gauge and regulator with fill & drain valve and
shut-off valve (Fig. 15, Item 5).
– An air separator.
The heat transfer fluid is circulated by the solar circulation
pump integrated in the hydraulic pump station (Fig. 15).
In most instances the 20 litre container of Tyfocor LS will be
sufficient quantity of transfer fluid to fill 30 metres of pipework
when connected to a 30 tube collector.
The pump station has a solar controller (Fig. 15 Item 6)
integrated into the front insulation moulding.This is pre-wired
to the solar pump.