# Smart-valve The purpose of this project was to replace at my house the existing NETATMO system (very good but not integrated in Home assistant and with no repeater). I have a boiler with Opentherm Card and a dedicated dev with ESP32 https://github.com/vibr77/Opentherm_HA_MQTT Changelog 20240102: - Add a mecanism for manual update on the TRV (wip) Changelog 20231031: - Fixe BRT-100-TRV firmware issue (TRV wrong position stay at 25% open position) with a work around on current temperature Smart-Valce is part of a suite of nodes to manage multi room heating system based on TRV and boiler - Smart-Scheduler: multi-zonning SmartScheduler, - Smart-Valve: Valve grouping, auto-calibration, manual override, - Smart-Boiler: Boiler OpenTherm, multi valve management. ## Smart-valve This node enables to manage multiple valve (climate) in a same room like one. It support the following features : - External temperature sensor, - Multiple valves updates, - TRV temperture Recalibration based on the external temperature sensor, - Manual update directly on the valve to trigger override message to the scheduler and update the other valve ### Key Features: - TRV auto calibration with an external source - Detection of manual update direcly on TRV - Fixe BRT-100-TRV issue on valve postion that stay open - Multi valves in the same room management - Multi mode execution Off / auto / Manual - Multi trigger execution: every cycle, at startup, on change. ### Inputs - payload (string):[1|on|trigger] - sp (integer): [0-35] ## Outputs 1. Update home assistant via call service 2. Update of SP to the boiler (smart-Boiler) or override message to the smart-scheduler ### Settings - Name: [string], name of the node and also the name of the group sent to the smart-boiler node - Topic: [string], not used, - Group Id: [integer], used by the smart-boiler node to identify this group of valves, need to be unique - Temperature: [string], is the name of the external temperature sensor entity in home assistant ex: sensor.temp9 - Update mode: [state changed|state changed+startup|every cycle], define how frequently updates are sent to the smart-boiler node - Update cycle: [integer], duration in minute between two cycle. default is 5 - Allow manual updates: [true|false], enable direct set point (target temperature) change on the valve or home assistant. If true when a valve set point ischanged all the other valves are updated and a override message is sent to the smart-scheduler node. - Recalibration: [No|Yes|Yes+threshold], enable to adjust the valve (TRV) current temperature based on the external temperature sensor, - Delta threshold: [integer] [0-9], threshold delta between external temperature sensor and the TRV current temperature to trigger recalibration, - Debug: [true|false], send debug info to the node-red console - Climate: each valve entry has 2 field: - climate: [string], home assitant climate entity of the valve ex: climate.kitchen - calibration: [string], home assistant calibration entity of the valve ex: number.kitchen_calibration ### Execution rules - Step 0: update current group setpoint with the sp of the valve, - Cycle : Step 1: identify if manual updates on valve, then update all valves, Step 2: check and execute recalibration Step 3: based on the execution mode, output to the smart-boiler node - On input: Update the requested set-point on each valves Buy Me A Coffee