13
TECHNICAL ASSISTANCE CENTRE
16 INITIAL STARTUP
Checks and preparations for initial start-up
Fill the storage cylinder with (potable) water.
Fill the solar collector circuit.
Make sure that the domestic cold water inlet
cock is open.
Make sure that the safety valves are functio-
ning.
Check the system for leaks.
Check the concentration of the anti-freeze.
Uncover the solar collectors and clean them
if necessary.
Make sure that the system is securely fixed
to the mounting frame.
Make sure that the roof does not leak.
Inspect the insulation.
17 MAINTENANCE
b
The solar water heating system must be serviced periodically by
B
’s Technical Assistance Centre or by a qual-
ified heating engineer.
b
The system should be serviced at least once a year, ideally in the autumn.
b
Check the condition of the magnesium anode.
Visually inspect the collectors for damage/
dirt.
Visually inspect the storage cylinder.
Visually inspect the mounting frame and
roof anchor points.
Inspect the insulation.
Make sure that the roof does not leak.
Make sure that the safety valves are functio-
ning.
Check the system for leaks.
Check the concentration of the anti-freeze.
Check the pH of the anti-freeze with litmus
paper.
Topping up or changing the heat transfer
liquid
Clean inside the storage cylinder (every 2
years or more frequently in hard water/high
temperature areas)
Checking the heat transfer liquid
- Use an instrument like a refractometer or densimeter to check the density of the anti-freeze. If the value is below
that necessary to protect the system at the minimum temperature selected, replace the heat transfer liquid or add
anti-freeze.
- Use litmus paper to check the pH (nominal value approx. 7.5). If the measured value is below 7, change the heat
transfer liquid.
Storage cylinder components
1
3
2
5
4
6
1
Insulated storage cylinder
2
Flange
3
Sensor socket (1/2”)
4
Fitting for electrical heating element (accessory)
5
Flange cover
6
Magnesium anode
Technical Assistance Centre
