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It should be se
If you have more than one heating circuit with/without a mixing valve, you should activate the
heating circuit 2 and 3 via the parameters 5715 and 5721 under the configuration page. Because
these parameters are off as factory settings.
After the activation, in case you have heating circuits with mixing valves, you will need to define
the function of extension modules via the parameters 6021 and 6022 under the configuration
page. Unless, these circuits will not be visible in the menu.
In case of more than one extension module usage, you will need to change the dip switches on
QX21 connector on the extension module = Mixing valve open
QX22 connector on the extension module = Mixing valve close
QX23 connector on the extension module = Heating circuit pump
BX21 connector on the extension module = Heating circuit sensor
Rev: RINNAI Service manual (English)
Date:14/05/2019
NOTE: If you have the second extension module, adjust the dip
switche
necessary to address the modules.
By this way, you have completed the recognition of the extension
modules in the system. The next step is the the electrical connection
of the pump, mixing valve and the sensor.
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