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2.4 Control board wiring diagram
For general purposes, the diagram of the control board input and output
connections is given. This diagram is expressly intended for the technical
personnel in charge of installation and maintenance.
The diagram given is valid for both the AIR and the IDRO version;
obviously, in the former case, PIN 11 and 12 will not be used, as there will
be no pump, whereas in the latter case, PIN 5 and 6 will not be used, as
there will be no ambient fan.
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The electronic control board allows a plate heat exchanger to be
connected in order to produce domestic hot water, mounted at the
generator delivery point. In this case, connect a flowstat on PIN 30 and 31
and the power of a three-way valve on PIN 13 and 14. Operating the
flowstat determines the power of the three-way valve and switches the
heater to the position where it delivers the maximum capacity, if it does
not do so already.
For mounting our product parallel to a traditional gas boiler, according to
the diagram shown in § 2.3, it is necessary to connect a three-way valve
on the same pins (11 and 12) used for the recirculating pump.
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Electrical Supply
Any electrical connections should comply with the requirements of the
current Building and Wiring regulations.
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