Commissioning [Specialist] - PAW SolexMini TW Installation And Commissioning Instructions

4 Commissioning [specialist]

Please observe the following safety instructions regarding the commissioning of the station:
WARNING
Risk of burns and scalding!
The fittings can heat up to more than 100 °C. Therefore, it is not allowed to flush
or fill the system if the collectors are hot (intense solar radiation). Please note that
hot solar fluid can leak from the pressure relief valves in case of too high system
pressure!
During venting, solar fluid may escape as vapour and cause scalding!
 Flush and fill the system only if the collector temperatures are
NOTICE
Risk of frost!
It is often not possible to completely drain solar installations after flushing. Thus, there is a risk
of frost damage when flushing with water. Therefore, flush and fill the solar installation only with
the solar fluid used later.
 Use a water and propylene glycol mixture with maximum 50% of propylene glycol
as solar fluid.
NOTICE
Note regarding the sequence of commissioning
Flush and fill the installation in the following order:
1. Fill the secondary circuit.
2. Vent the heat exchanger by means of the safety valve.
3. Flush and fill the solar circuit of the heat exchanger.
4. Flush and fill the collector field.
5. Flush and fill the (entire) solar circuit.
This avoids that dirt particles are flushed into the heat exchanger and guarantees
that possibly absorbed heat can be dissipated.
12
below 70 °C.
996091425-mub-en – V04
4 Commissioning [specialist]
2016/05