Hamworthy Trigon ST1 Installation, Commissioning, Operation & Service Instructions page 16

4 Commissioning [installer]
De-aerator
The de-aerator with manual vent valve is used to vent the solar
installation. To ensure perfect deaeration of the solar circuit, the flow
velocity must be at least 0.3 m/s in the flow line.
Pipe diameter [mm]
∅ outside ∅ inside
15
18
22
The air liberated from the solar fluid is collected in the upper part of the de-aerator and can be
released at the vent plug [4.2].
WARNING
Danger of scalding due to vapour escape!
The escaping fluid can have a temperature of more than 100 °C and cause
scalding.
 Carefully open the vent plug and close it again, as soon as medium
Venting the solar installation after commissioning
At the beginning, vent the solar installation daily and then weekly or monthly,
depending on the vented air quantity. Thus, an optimum operation of the solar
installation is ensured. Check the system pressure after venting and increase it to the
specified operating pressure, if necessary.
0DNO0201
Flow rate at 0.3 m/s
l/h
13 ~ 143
16 ~ 217
20 ~ 339
escapes.
Installation-Operation ST1 Solar Pump Station
l/min
~ 2.4
~ 3.6
~ 5.7
13