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Riello RS485 connections

The Riello heat pumps have the RS485 connections within the indoor controller.

In the Riello indoor controller make the following RS485 Modbus connections:

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Riello in the middle of the RS485 cable runRiello at the end of the RS485 cable run

Guidance

  • Connect both screened drain wires together, insulate and carefully locate it at the edge of the PCB to reduce the chance of a short-circuit. 

  • RS485 termination within the Passiv Programmer (see the Installation guide page 9)

 

Guidance

  • Do NOT use the RS485 termination within the Passiv Programmer (see the Installation guide page 9)