Need help with smart heating (zigbee2mqtt or zha, TUYA TS0601/MoesHY368)

yourik · June 12, 2021, 2:44am

Hi, I got stuck with the configuration of smart heating.
What do I have:

Working Zigbee Home Automation.
Connected a few Tuya TS0601 / Moes HY386 type1 radiator valves. Added as devices to the integration.
Relay on ESPHome to turn ON/OFF heater.
Each radiator valve has state:

hvac_modes:
  - heat
min_temp: 5
max_temp: 35
preset_modes:
  - none
  - away
  - schedule
  - comfort
  - eco
  - boost
  - complex
current_temperature: 22
temperature: 5
hvac_action: idle
preset_mode: none
system_mode: '[4]/heat'
occupancy: 1
occupied_heating_setpoint: 500
unoccupied_cooling_setpoint: 1500
friendly_name: Bedroom Yourik radiator valve thermostat
supported_features: 17

What do I want to have:
If temperature on radiator valve goes below threshold - it opens and also it starts heater. So each room can have it’s own temperature and I warm only rooms I need.
How I was trying to solve this:

Generic thermostat.

climate:
  - platform: generic_thermostat
    name: Yourik Bedroom manual thermostat
    heater: device_tracker.e8_db_84_ae_2a_b0
    target_sensor: climate.bedroom_yourik_radiator_thermostat
    min_temp: 10
    max_temp: 30
    ac_mode: false
    target_temp: 18
    cold_tolerance: 0.3
    hot_tolerance: 0
    min_cycle_duration:
      seconds: 5
    keep_alive:
      minutes: 3
    initial_hvac_mode: "idle"
    away_temp: 16
    precision: 0.1

this makes an error in logs - Unable to update from sensor: could not convert string to float: ‘heat’
So it doesn’t seem to be a good idea.

Automation using created devices
Goal - if I receive change state from any radiator valve I compare temperature against current_temperature and execute script with heater on or off.

alias: Heater ON-T
description: ''
trigger:
  - platform: state
    entity_id: climate.bedroom_yourik_radiator_thermostat
  - platform: state
    entity_id: climate.bathroom_radiator_thermostat
condition:
  - condition: or
    conditions:
      - condition: template
        value_template: >-
          states(''climate.bedroom_yourik_radiator_thermostat.temperature'')|int
          >
          states(''climate.bedroom_yourik_radiator_thermostat.current_temperature'')|int
      - condition: template
        value_template: >-
          states(''climate.bathroom_radiator_thermostat.temperature'')|int
          >
          states(''climate.bathroom_radiator_thermostat.current_temperature'')|int

action:
  - service: script.heater_turn_on
mode: single

this doesn’t work. Despite of the temperature/current_temperature values - it always call the script.

Use automation based on HVAC_ACTION
Since hvac_action can be idle or heating

alias: Heating ON
description: ''
trigger:
  - platform: state
    entity_id: climate.bedroom_yourik_radiator_thermostat
    attribute: hvac_action
    from: idle
    to: heating
    for: '00:01:00'
  - platform: state
    entity_id: climate.bathroom_radiator_thermostat
    attribute: hvac_action
    from: idle
    to: heating
    for: '00:01:00'
condition: []
action:
  - service: script.heater_turn_on
mode: single

it almost worked. But there were moments when hvac_action changes but this event is somehow not registered or temperatures changes but hvac_action is not and, correspondingly, heater doesn’t go on/off.

Or I went to completely wrong direction and it is better to use MQTT integration?
So I would appreciate any advice on how to set it up.

nickrout · June 12, 2021, 3:25am

1 is the correct way, create a climate entity. However heater: is supposed to be a switch to turn the heating on, device_tracker.e8_db_84_ae_2a_b0 is a device tracker, it can’t swtich your boiler on surely?

Also target_sensor: climate.bedroom_yourik_radiator_thermostat is weird. Do you already have a climate entity? What is it? Is climate.bedroom_yourik_radiator_thermostat even an entity? If it is, the state of a climate entity is not a temperature, it is a string like heat. Guessing this is the real problem.

target_sensor string REQUIRED>
entity_id for a temperature sensor, target_sensor.state must be temperature.

Also your subject says zigbee2mqtt, your questions says ZHA. Which is it?

yourik · June 12, 2021, 3:56am

Hi Nick.
Thank you for you answer.
yes, good point, it should not be device tracker. Correct entity id is switch.house_cv_relay. This is fixed.

about target sensor - this ID I copied from integration->zha->device->entity

koying · June 12, 2021, 7:55am

What Nick is saying is that the target_sensor must be a sensor whose state is a temperature.

So you would have to extract the current temperature of your existing climate as a sensor (assuming that’s what you want)

Something like:

template:
  - sensor:
      - name: "Bedroom Yourik Current temperature"
        unit_of_measurement: "°C"
        state: "{{ state_attr('climate.bedroom_yourik_radiator_thermostat', 'current_temperature') | float }}"

Then use sensor.bedroom_yourik_current_temperature as the target_sensor

yourik · June 13, 2021, 1:33am

Hi Chris,
ok, this part was successful. I created thermostat and two sensors

climate:
  - platform: generic_thermostat
    unique_id: bedroom_yourik_generic_thermostat
    name: Yourik Bedroom manual thermostaat
    heater: switch.house_cv_relay
    target_sensor: sensor.bedroom_yourik_current_temperature
    min_temp: 10
    max_temp: 30
    ac_mode: false
    target_temp: 18
    cold_tolerance: 0.3
    hot_tolerance: 0
    min_cycle_duration:
      seconds: 5
    keep_alive:
      minutes: 3
    initial_hvac_mode: "off"
    away_temp: 16
    precision: 0.1
template:
  - sensor:
    - name: "Bedroom Yourik Current temperature"
      unique_id: sensor.bedroom_yourik_current_temperature
      unit_of_measurement: "°C"
      state: "{{ state_attr('climate.bedroom_yourik_radiator_thermostat', 'current_temperature') | float }}"
    - name: "Bedroom Yourik target temperature"
      unique_id: sensor.bedroom_yourik_target_temperature
      unit_of_measurement: "°C"
      state: "{{ state_attr('climate.bedroom_yourik_radiator_thermostat', 'temperature') | float }}"

and now I created an automation

alias: Heating manual
trigger:
  - platform: template
    value_template: >-
      states(''sensor.bedroom_yourik_target_temperature'')|float >
      states(''sensor.bedroom_yourik_current_temperature'')|float
condition: []
action:
  - service: persistent_notification.create
    data:
      message: yourik target T > current T

but now I am still confused

when target T is more that current T - heater relay turns ON (and heater starts). But in this case - thermostat motor doesn’t work, hvac_action remains the same, so it won’t open (or close) a radiator crane. And I didn’t find a way to change it. I can do either on/off/toggle radiator, change preset and change HVAC mode (which has only value HEAT). None of these starts motor
I have a few radiators. Do I understand it correct that I’ll need to duplicate generic_thermostat and two sensors for each of them but use the same *heater: switch_house_cv_relay" ?

koying · June 13, 2021, 8:57am

A tad confusing.
What is “thermostat motor” and how does it relates to the relay?

yourik · June 13, 2021, 11:08am

TS0601_thermostat
this thermostat has a motor inside which opens or closes valve. This process is based on

hvac_action = idle/heating

so if take climate.bedroom_yourik_radiator_thermostat entity (see above) and change this parameter - valve will get open/closed. And Step 3 (see above) is based on this parameter.
But I don’t know how to access this field if I do automation for generic thermostat (see screenshots above)

koying · June 13, 2021, 11:17am

Ok, but what does the relay do, then?
If it’s unrelated to the valve, then you would have to open the valve as a secondary service in the same automation.

yourik · June 13, 2021, 12:08pm

Relay is responsible to start a heater itself. It switches it on.

so all thermo-vales control temperature in each room, they also open\close each radiator and tell * switch.house_cv_relay * to start heating process.

nickrout · June 15, 2021, 5:34am

So to heat the room you need to

turn the boiler on; and
open the valve?

In that case you need to set the heater: in your Generic Thermostat needs to be a toggle that does both of those things.

yourik · June 15, 2021, 1:32pm

so far my automation looks like:

alias: Heating ON 2
description: ''
trigger:
  - platform: state
    entity_id: climate.bedroom_yourik_radiator_thermostat
  - platform: state
    entity_id: climate.livingroom_radiator_thermostat
condition:
  - condition: or
    conditions:
      - condition: template
        value_template: >-
          states(''sensor.bedroom_yourik_target_temperature'')|float >
          states(''sensor.bedroom_yourik_current_temperature'')|float
      - condition: template
        value_template: >-
          states(''sensor.living_room_target_temperature'')|float >
          states(''sensor.living_room_current_temperature'')|float
action:
  - service: script.heater_turn_on
mode: single

where all sensor.xxx - are defined as template sensors.
both current temperature = 20 degree
both target temperature = 5 degree
when I start automation - it turns on the heater relay.

What is wrong with the conditions? I can’t see it

but the idea is - radiator valve knob takes care of opening or closing the radiator valve. And on every state change - I decide either to turn on or turn off the heater itself

yourik · June 22, 2021, 6:05am

I found a solution.
configuration:

template:
  - sensor:
    - name: "Bedroom Yourik Current temperature"
      unique_id: sensor.bedroom_yourik_current_temperature
      unit_of_measurement: "°C"
      state: "{{ state_attr('climate.bedroom_yourik_radiator_thermostat', 'current_temperature') | float }}"
    - name: "Bedroom Yourik Target temperature"
      unique_id: sensor.bedroom_yourik_target_temperature
      unit_of_measurement: "°C"
      state: "{{ state_attr('climate.bedroom_yourik_radiator_thermostat', 'temperature') | float }}"
    - name: "Bathroom Target temperature"
      unique_id: sensor.bathroom_target_temperature
      unit_of_measurement: "°C"
      state: "{{ state_attr('climate.bathroom_radiator_thermostat', 'temperature') | float }}"
    - name: "Hallway Current temperature"
      unique_id: sensor.hallway_current_temperature
      unit_of_measurement: "°C"
      state: "{{ state_attr('climate.hallway_radiator_thermostat', 'current_temperature') | float }}"

and automation is:

alias: Heating ON-OFF
description: ''
trigger:
  - platform: state
    entity_id: climate.bedroom_yourik_radiator_thermostat
  - platform: state
    entity_id: climate.bathroom_radiator_thermostat
condition: []
action:
  - choose:
      - conditions:
          - condition: template
            value_template: >-
              {{states('sensor.bedroom_yourik_current_temperature')|float > 
              states('sensor.bedroom_yourik_target_temperature')|float }}
          - condition: template
            value_template: >-
              {{states('sensor.bathroom_current_temperature')|float >
              states('sensor.bathroom_target_temperature')|float }}
        sequence:
          - service: script.heater_turn_off

maybe it will help someone who has similar problem.

Didn’t find yet how to manage presets but will be investigating.

mdzhigarov · March 13, 2023, 9:59am

This looks exactly like the solution I need but unfortunately I cannot get it to work.
Would you please assist?

As can be seen from the screenshot - the state has a ‘local_temperature’ attribute that I wish to use in a virtual sensor.


template:
  - sensor:
    - name: "Guest Bedroom TRV sensor"
      unique_id: sensor.guest_bedroom_trv
      unit_of_measurement: "°C"
      state: "{{ state_attr('climate.0x003c84fffe21f325', 'local_temperature') }}"

climate.0x003c84fffe21f325 is the ID of the device in HASS, though I’m getting:
TemplateError('ValueError: Template error: float got invalid input 'None' when rendering template '{{ state_attr('climate.0x003c84fffe21f325', 'local_temperature') | float }}' but no default was specified') while processing template 'Template("{{ state_attr('climate.0x003c84fffe21f325', 'local_temperature') | float }}")' for attribute '_attr_native_value' in entity 'sensor.guest_bedroom_trv_sensor'

Any ideas?