Installation guide

Solarflo - Solar Thermal Domestic Hot Water System14

9.0 Installation of hydraulic station

9.2 Identification of components

The main components of the hydraulic station are:

– Two isolating valves (Fig. 11, Item 1 & 2) with integral

thermometers which display the solar primary flow

and return temperatures.

– A safety group (Fig. 11, 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. 11, Item 4).

– A flow meter with fill & drain valve and shut-off valve

(Fig. 11, Item 5).

– An air separator.

The heat transfer fluid is circulated by the solar circulation

pump integrated in the hydraulic pump station (Fig. 11).

The hydraulic station has a solar differential temperature

controller (Fig. 11 Item 6) integrated into the front

insulation moulding.This is pre-wired to the solar pump.

Fig. 11