Modbus TCP
Lambda EU-L Series
Lambda
Overview
The Lambda EU-L Series is an air-to-water heat pump designed for residential and light-commercial space heating, cooling, and domestic hot water. This template connects via Modbus TCP and reads actual power consumption, accumulated electrical energy, current hot-water storage temperature, and the configured temperature limit. It also exposes the E-Manager PV surplus setpoint register, letting your portal push available solar power to the heat pump so the unit can self-regulate its uptake. Together, these five registers give installers a clear picture of energy use and thermal state without opening the Lambda controller interface.
Use cases
- Monitor real-time electrical power draw to verify the heat pump stays within expected operating bounds.
- Track accumulated energy consumption over billing periods to report seasonal efficiency to building owners.
- Alert on storage temperature approaching the configured limit to detect thermostat or sensor faults early.
- Push PV surplus values via the setmaxpower register to shift heat-pump load toward midday solar production.
