PAW SolarBloC midi Basic 2S Installation And Operation Instruction Manual page 14

Airstop
The Airstop (vent valve with manual bleeder) is used to vent the solar system.
To ensure a perfect venting of the solar circuit, the flow velocity must be at least
0.3 m/s in the flow line.
Pipe diameter [mm]
∅ outside
15
18
22
28
Danger of scalding due to escaping vapour!
The escaping medium can have a temperature of more than 100 °C and cause
scalding.
►
The air separated from the solar fluid is collected in the upper part of the airstop and can be released
at the vent plug.
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 prescribed operating pressure, if necessary.
14
∅ inside
13
16
20
25
WARNING
Carefully open the vent plug and close it again, as soon as medium escapes.
99775810x-mub-en - V01
4 Commissioning [specialist]
Flow rate at 0.3 m/s
l/h
~ 143
~ 217
~ 339
~ 530
l/min
~ 2.4
~ 3.6
~ 5.7
~ 8.8
09/2023