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Installat
ion and User Instructions R01128
-8 09/15
Page
25
Installation
5.5 Solar coil connections
If the flow connection is the highest
point in the solar loop and if the system
was not commissioned using a flush
and fill pump, an adequate device for
de-aeration must be installed.
For ease of maintenance it is
recommended to install a drain valve
at the return connection of the solar
coil. Compression fittings should be
used to complete this part of the
installation.
Note: If the cylinder is located
higher than the solar collector
array, a two port valve has to be
installed and wired accordingly.
5.6 Auxiliary coil
connections
If the flow connection is the highest
point in the auxiliary heating loop an
adequate device for de-aeration must
be installed.
For ease of maintenance it is
recommended to install a drain valve
at the return connection of the
auxiliary heating coil, if this is the
lowest point in the auxiliary heating
loop.
It is recommended that the fittings
used to connect to the cylinder are
suitable for stainless steel, the flow and
return should use 28mm compression
fittings. Not all push fit fittings can be
used – please check with your supplier.
When using compression fittings,
ensure that the connection is not over-
tightened.
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