Free Hot Water FHWFC 4000 Series User Manual - page 6
Page 6
connected to the main potential equalisation bus by a qualified electrician in accordance
with ÖVE/ÖNORM E 8001-1 or the country-specific standards.
Connections
Connect the collectors using the cutting ring screw connections. If flexible pipes are not
used as connectors, precautions must be taken to protect the connection pipes against
temperature fluctuations caused by heat expansion, e.g. expansion bends and flexible
piping (see Connecting the collectors to one another/Operational recommendations).
Larger collector arrays must be assembled with expansion bends or flexible members
inserted in the links. (IMPORTANT: check the pump design). When tightening the
union nuts, always balance (counter) the torque with a pipe wrench or another
spanner to prevent damage to the absorber.
Collector angle / General notes
The collector is suitable for angles between 15° (minimum) and 75° (maximum). The
collector connections and the ventilation openings must be protected against the
penetration of water as well as against contamination through dust etc.
Legal guarantee
Legal guarantee claims can only be made if the supplier's own antifreeze has been used
and maintenance has been carried out correctly. Installation by qualified personnel with
absolute adherence to the instructions is a prerequisite for the justification of claims.