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| layout | title | description | date | sidebar | comments | sharing | footer | logo | ha_category | ha_release | ha_iot_class |
|---|---|---|---|---|---|---|---|---|---|---|---|
| page | Honeywell evohome/TCC Climate devices | Instructions on how to utilize a Honeywell evohome/TCC system within Home Assistant. | 2018-09-25 12:00 | true | false | true | true | honeywell.png | Climate | 0.80 | Cloud Polling |
The evohome climate platform integrates your non-US Honeywell Total Connect Comfort (TCC) system into Home Assistant. It has been tested with the Honeywell evohome multi-zone CH/DHW system, but other systems may also work.
It is distinct from - but related to - the honeywell climate platform, which also allows (limited) integration with Honeywell Connected thermostats; these two components may well be usable side-by-side, but YMMV.
The evohome evotouch Controller supports seven distict operating modes: Auto, AutoWithEco, Away, DayOff, HeatingOff, and Custom; AutoWithReset is a 7th, hidden, mode.
Currently, only the standard HA operating modes are supported; the evohome modes are mapped thus: 'Eco' (AutoWithEco), 'Off' (HeatingOff), and 'Auto' (all other evohome modes). 'Away' mode is supported separately, in the HA fashion.
The evohome Heating zones support only three operating modes: FollowSchedule, TemporaryOverride, and PermanentOverride. If the zone is in FollowSchedule mode, it inherits its operating_mode from the controller; the other modes are mapped to 'Manual' or 'Off'.
A device's actual operating mode can be tracked via its device_state_attributes, which includes a JSON data structure for current state called status. For example:
{
'zoneId': '999999',
'temperatureStatus': {
'temperature': 21.5,
'isAvailable': True
},
'activeFaults': [],
'setpointStatus': {
'targetHeatTemperature': 17.5,
'setpointMode': 'FollowSchedule'
},
'name': 'Main Room'
}
This data can be accessed in automations, etc., via a value template: {% raw %}
value_template: "{{ state_attr('climate.main_room', 'status').setpointStatus.setpointMode }}"
{% endraw %}
Full configuration details can be found on the main [evohome component](/components/evohome/) page.