diff --git a/src/docs/devices/Genvex-Nibe-AlphaInnotec-heat-recovery-ventilation/index.md b/src/docs/devices/Genvex-Nibe-AlphaInnotec-heat-recovery-ventilation/index.md index 6a93f5fad..9df4d9ce6 100644 --- a/src/docs/devices/Genvex-Nibe-AlphaInnotec-heat-recovery-ventilation/index.md +++ b/src/docs/devices/Genvex-Nibe-AlphaInnotec-heat-recovery-ventilation/index.md @@ -6,13 +6,13 @@ standard: global board: esp32 --- -Heat Recovery Ventilation system control via MODBUS protocol for Genvex ECO 375, +Heat Recovery Ventilation system control via ModBUS protocol for Genvex ECO 375, Nibe ERS 10-500, Alpha-Innotec LG 300 ECO B(E). The ventilation unit must contain -the Optima 260 (ES 960C) controller board, and have MODBUS enabled at 19600 baud. +the Optima 260 (ES 960C) controller board, and have ModBUS enabled at 19600 baud. -Use an RS485 transceiver like MAX485 to the device via MODBUS. Some devices come -pre-installed with a cloud controller already plugged in to the MODBUS port, this -should be disconnected. +Use an RS485 transceiver like MAX485 to the device via ModBUS. Some devices come +pre-installed with a cloud controller already plugged in to the ModBUS port, this +has to be be disconnected (ESPHome will go instead). ![Product Image](/ECO-375-mark2-lukket.jpg) @@ -705,11 +705,11 @@ button: ## Notes If you get CRC errors use shorter cables and double-check for the 120 Ohm termination -resistors as per MODBUS standard. +resistors as per ModBUS standard. -The factory pre-installed cloud controller has to be -disconnected because it acts a MODBUS Master, just like the ESPHome node configured as -above. You can't have two MODBUS Masters in parallel like that. +The factory pre-installed cloud controller (usually a separate box or board) has to be +disconnected because it acts a ModBUS Master, just like the ESPHome node configured as +above. You can't have two ModBUS RTU Masters on the same bus. These units were shipped with various controller boards inside, this configuration only matches Optima 260 (ES 960C).