Ventilation system Genvex, Nibe, Alpha-Innotec via Modbus

robi · May 17, 2022, 9:21am

Heat Recovery Ventilation system control via MODBUS protocol for Genvex ECO 375, Nibe ERS 10-500, Alpha-Innotec LG 300 ECO B(E)

Veitlation unit containing Optima 260 (ES 960C) controller board, MODBUS enabled at 19600 baud
MAX485 RS485 transceiver module to connect to MODBUS
Olimex ESP32-EVB board for Ethernet connection to the network
Using traffic encryption between ESPHome and Home Assistant, with native API.

See here:

github.com

nagyrobi/home-assistant-configuration-examples/blob/main/esphome/ventilation_genvex_ait_nibe.yaml

# Heat Recovery Ventilation system control via MODBUS protocol for Genvex ECO 375, Nibe ERS 10-500, Alpha-Innotec LG 300 ECO B(E) 
#
# - Veitlation unit containing Optima 260 (ES 960C) controller board, MODBUS enabled at 19600 baud
# - MAX485 RS485 transceiver module to connect to MODBUS
# - Olimex ESP32-EVB board for Ethernet connection to the network 
# - Using traffic encryption between ESPHome and Home Assistant, with native API.
#
# Note: if you get CRC errors use shorter cables and double-check for the 120 Ohm termination resistors as per MODBUS standard.

substitutions:
  device_name: ventilation-system
  friendly_name: "Ventitaltion"
  device_ip: 192.168.1.10
  device_description: "Heat Recovery Ventilation System Control"
  modbus_ctrl_id: genvex_modbus

esphome:
  name: ${device_name}
  comment: "${device_description}"
  platform: ESP32

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