Glow-worm Clearly Solar System Hydraulics - Manual (Page 9)

9
3 Component Specifications
3.1 Solar pump station
Refer to diagram 3.1 for contents and description.
The solar pump unit is equipped with a three-speed solar
pump for the optimum adaptation of the required circulating
volume and the pump capacity in the solar circuit.
Select the pump capacity, depending on the solar system (e.g.
collector surface, pipe diameter, length of the solar circuit), so
that the actual flow rate is slightly higher than the nominal flow
rate. The flow rate meter is used for fine adjustment of the
flow rate.
The solar pump unit is delivered with a water control pack,
consisting of an expansion relief valve and a pressure gauge.
The flow rate meter installed in the return pipe is an essential
component of the solar system. To achieve optimum heat
transfer, you must achieve a certain flow rate, refer to section
5.2.
Upper deviations are not as serious as lower deviations.
Make the rough adjustments with the solar pump first. You can
make the fine adjustments with the adjustment valve of the
flow rate meter. You can view the set value on the display of
the flow rate meter.
The flow rate meter has a fill/vent valve for filling and draining
the solar circuit.
NOTE: Do not under any circumstances set the flow rate
below the calculated flow rate. The collector efficiency will be
considerably reduced.
If you would like to use the solar flexible pipework (DN16
0020054964) from the pump station to the cylinder, please
order an additional two fittings packs, part No. 0020054965,
these contain the relevant fittings for this application.
358
120
Ш 22 Ш 22
Ш 22 Ш 22
Ш 22 Ш 22
250
1
5
6
2
3
4
CONTAINER
SOLAR
EXPANSION
VESSEL
7
Diagram 3.1
Solar Pump Station part no. 0020054961
Item Qty. Description
1
1 Flow tube with isolating valve with integrated
gravity brake and temperature display
2 1 Return tube with isolating valve with
integrated gravity brake and temperature
display, flow rate meter with fill/vent valve,
circulating pump
3 1 Safety valve with pressure gauge, fill valve
and corrugated tube DN16 including wall
bracket for solar expansion vessel
4 1 Wall bracket for expansion vessel with fitting
5 1 Wall bracket for solar pump station
6 4
4
4 22mm Compression nuts
22mm Brass olives
22-18mm Reducers (discard)
7 2 C-clips
14829
18 litre Supplied with 1 collector pack
25 litre Supplied with 2 collector packs
35 litre Supplied with 3 collector packs
Solar Expansion Vessel