1. INTRODUCTION
The boiler can independently manage up to three heating circuits by using external accessories such as room units, remote
controls and external modules. The boiler electronics also comprises a wide range of functions for personalising and managing
various system types. To assure correct system operation, a number (from 1 to 3) must be assigned to each accessory in order to
allow the boiler board to recognise it.
2. DESCRIPTION OF ACCESSORY
This accessory allows the boiler to manage
• Heating circuits at different temperatures.
• Solar plant.
• Other specific applications (swimming pool, DHW circulation pump, etc.).
This accessory can directly manage the circuit components (pump, temperature sensor, mixing valve, etc.) up to a maximum of 3
independent relay outlets, 2 temperature sensors and 1 control input. Some predefined functions can be used to simplify system
configuration.
To change the parameters and the connections in the instrument panel terminal blocks, consult the boiler instructions ma-
nual.
The Remote Control must be used to set the parameters of the described configurations.
Check that the boiler is prearranged for this accessory.
3. MOUNTING ON THE BOILER CONTROL PANEL
Remove the cover A of the control panel B. Lift the control panel B and connect the flat cable between the connector X50 of the ac-
cessory AGU2.550 and the connector X41 of the boiler board, threading it through the hole in the control panel B. Close the con-
trol panel B and insert the AGU2.550. Make the required electrical connections and attach the new cover C present in the pack.
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