Immergas 3.029660, Инструкция и предупреждение

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1.9 INDICATIONS ON GASKETS AND CONNECTIONS
The external components of the SOLARSMART solar collector
with integrated storage are all made of plastic, to reduce thermal
dispersion.
The connections were created for the use of gaskets with flat seal.
Only use the flat washers supplied with the collector
and the valves to seal the connections.
Do not use other types of seal or additional seals, such
as hemp, Teflon, sealing paste or similar. No guarantee
rights will be recognised if seals or additions other
than those supplied are used.
Tighten the fittings with moderation and within the
prescribed limits.
When tightening the connections:
• make sure the gaskets are positioned correctly;
• use a spanner and a torque wrench;
• use the spanner to keep one of the two connections steady, so
that it does not move from its seat, and to prevent damaging
the connection;
• tighten the other connection using the torque wrench, without
exceeding a tightening torque of 20 Nm.
• Using flexible hoses
1.10 USING FLEXIBLE HOSES
Only removable connections (e.g. stainless steel bellows and fle-
xible pipes) must be used to connect the water lines to the valves
on the solar collector connections.
This compensates the thermal expansion of the lines caused by
temperature oscillations and makes disconnecting and repositio-
ning the solar collector easier if it has to be removed.
Make sure the connecting pipes, once installed, can
move in order to guarantee suitable thermal expan-
sion.
It is advisable to use a connecting system that is not
fixed (e.g. staples).
Other indications
Only use water supply pipes that are suitable for the domestic
sector and that can resist a temperature of at least 120 °C.
In order to reduce thermal dispersion and prevent the risk of fre-
ezing, it is advisable to insulate the pipes that supply the collector
with water and towards the user with insulation material of suitable
thickness; for outdoor pipes use material that is UV-resistant.