Kingspan Varisol, Руководство по установке

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Varisol Installation Manual
11 10
Connection Information
In any solar panel system, the ‘return’ refers to the intake in the collector where liquid
is returning to be reheated. The ‘flow’ refers to the collector side where the liquid is
flowing to the heat exchanger.
Note: It is essential that the collector temperature sensor is located in the flow
of the collector.
The following illustrations shows the connections to the manifold.
Types of Connections
The only pipes which should be used with a solar installation are copper pipe, continuous
flexible stainless steel or mild steel.
When using copper pipe, only compression or brazed joints can be used. Solder and
galvanised fittings will not withstand high temperature or expansion and are therefore not
suitable for solar pipe work.
PEX / PLASTIC / PEX-ALU-PEX or GALVANISED TUBING OR FITTINGS
SHOULD NOT BE USED UNDER ANY CIRCUMSTANCES
Flexible Pipe Connections
Flexible pipe connections are recommended to connect the manifold through the building
fabric and allow flexibility in connecting to the internal pipe work.
Flexible stainless steel pipes are available in both a 15mm and 22mm diameter. If
connecting one diameter pipe to another, a suitable reducer compression fitting is
recommended to make the connection.
Insulation
All pipe work on the solar loop should be insulated with high temperature insulation (such
as HT/Armaflex from Armacell GmbH). High temperature insulation is essential as standard
pipe insulation will melt at temperatures experienced by solar pipes.
The wall thickness of the insulation should be equal to the diameter of the pipe. The only
pipes which should not be insulated are the pipes to the safety vessels as they should
allow heat to dissipate when the system is experiencing excessive heat and pressure.