按 4 升流量阈值触发的进水总阀关闭

自动化 YAML water-leak-main-shutoff.yaml 复制

# HearthNodes recipe 21 - leak shutoff
alias: "Water - leak or runaway flow closes the main"
id: hn_water_leak_main_shutoff
description: "Any puck wet, or 4 L/min idle flow for 12 minutes, closes the main"
mode: single
max_exceeded: silent

trigger:
  - platform: state
    entity_id:
      - binary_sensor.leak_puck_1
      - binary_sensor.leak_puck_2
      - binary_sensor.leak_puck_3
      - binary_sensor.leak_puck_4
      - binary_sensor.leak_puck_5
      - binary_sensor.leak_puck_6
    to: "on"
    id: puck_wet
  - platform: numeric_state
    entity_id: sensor.house_water_flow_lpm
    above: 4
    for: "00:12:00"
    id: runaway_flow

variables:
  fixtures_that_may_run:
    - binary_sensor.bath_tap_active
    - binary_sensor.shower_active
    - binary_sensor.garden_tap_active
    - binary_sensor.irrigation_running
    - binary_sensor.washing_machine_active
    - binary_sensor.dishwasher_active
  valve: valve.water_main

condition:
  - condition: state
    entity_id: "{{ valve }}"
    state: "open"
  - condition: template
    value_template: >-
      {{ is_state('person.primary','home') or is_state('person.partner','home')
         or is_state('input_boolean.away_flow_guard','on') }}
  - condition: template
    value_template: >-
      {{ trigger.id == 'puck_wet'
         or (trigger.id == 'runaway_flow'
             and fixtures_that_may_run | select('is_state','on') | list | count == 0) }}

action:
  - service: valve.close_valve
    target:
      entity_id: "{{ valve }}"
  - wait_template: "{{ is_state_attr(valve, 'current_position', 0) }}"
    timeout: "00:00:10"
    continue_on_timeout: true
  - service: siren.turn_on
    target:
      entity_id: siren.indoor
    data:
      tone: water
      duration_s: 90
  - service: notify.all_devices
    data:
      title: "Water shut off"
      message: >-
        {{ trigger.id }} on {{ trigger.entity_id }}.
        Flow {{ states('sensor.house_water_flow_lpm') }} L/min.
        Valve {{ states(valve) }}. Reset by hand at the valve.
  - service: input_boolean.turn_on
    target:
      entity_id: input_boolean.water_lockout

# Puck buzzers are local hardware and still sound with the hub down. Valve fails
# to confirm closed in 10 s -> two retries, then a notification with instructions
# for the manual bypass. Monthly exercise cycle closes and reopens the ball valve
# at 04:00 on the first of the month so scale cannot seize it.