Z-Wave Climate


To get your Z-Wave thermostat or HVAC unit working with Home Assistant, follow the instructions for the general Z-Wave component.

Thermostats with support for fan modes or different operating modes, will be handled like a HVAC device and will also be detected as one. If the thermostat support different operating modes, you will get one thermostat entity for each mode. These can be hidden with settings using the customize setting in the configuration.yaml file.

To enable the climate component for your Z-Wave network, add the following to your configuration.yaml file.

climate:
  platform: zwave

Once enabled, any Z-Wave climate devices will be available to Home Assistant. Multiple entities may be created. The following entities are created for a Remotec ZXT-120.

  • climate.remotec_zxt120_heating_1_id Allows you to control the connected device. See below for examples.
  • sensor.remotec_zxt120_temperature_38 A sensor which returns the current temperature set on the attached device.

Automating Z-Wave Climate Devices

The following examples will instruct a Remotec ZXT-120 to turn the attached device mode to Heating, and set the temperature at 24 degrees after 8pm. Add it to automation.yaml.

automation:
  - alias: Turn on Heater at 8pm
    trigger:
      - platform: time
        after: "20:00:00"
    action:
      - service: climate.set_operation_mode
        entity_id: climate.remotec_zxt120_heating_1_id
        data:
          operation_mode: Heat
      - service: climate.set_temperature
        entity_id: climate.remotec_zxt120_heating_1_39
        data:
          temperature: 24

Generally in Home Assistant you can use the homeassistant/turn_off service to turn devices off. For the Remotec ZXT-120, you must instead make a service call like the following.

automation:
  - alias: Turn off Heater at 9pm
    trigger:
      - platform: time
        after: "21:00:00"
    action:
      - service: climate.set_operation_mode
        entity_id: climate.remotec_zxt120_heating_1_id
        data:
          operation_mode: 'Off'

Note: In the example above, the word Off is encased in single quotes to be valid YAML.

Test if it works

A simple way to test if your Z-Wave climate device is working is to use service developer tool icon Services from the Developer Tools. Choose the applicable Climate service from the list of Available services: and enter something like the sample below into the Service Data field and then press CALL SERVICE.

{
  "entity_id": "climate.remotec_zxt120_heating_1_id",
  "operation_mode": "Heat"
}