Baxi Solarflo Installation Manual page 16

Fig. 17
© Baxi Heating UK Ltd 2008
16
9.0 Installation of pump station
9.4 Pipework installation - general (cont)
Venting the pipework
The Solarflo TM hydraulic station includes an air
collector/separator and bleed point so an automatic air vent is
not necessary. Any section of solar pipework that falls and rises
again may require an additional air vent valve to relieve any
trapped air which may cause air locking in the system.The air
vent must be compatible with solar primary systems, i.e. be
resistant to glycol and temperatures up to 200ºC.
Insulating the pipework
External pipework should be insulated with high temperature
resistant materials and be protected against UV degradation.
Internal pipework, especially through unheated spaces such as
a loft space, should also be insulated with high temperature
resistant materials. The Solarflo TM
insulated flexible stainless steel tubes and with additional
lengths (30m) of stainless steel flexible tubes and high
temperature insulation.
is supplied with 2x2m pre