The nexia component lets you control thermostats connected to Nexia (Trane/American Standard).

By connecting this component, you will have access to all thermostats and zones in your associated home.

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Configuration

To add the Nexia component to Home Assistant, add the following information to your configuration.yaml file:

You can get YOUR_HOUSE_ID by logging into Nexia, going to the climate section, and then getting the number that comes between https://www.mynexia.com/houses/ and /climate.

https://www.mynexia.com/houses/<YOUR_HOUSE_ID>/climate

You will put YOUR_HOUSE_ID into the configuration as an integer and not a string.

# Example configuration.yaml entry
nexia:
  username: "YOUR_USERNAME"
  password: "YOUR_PASSWORD"
  id: YOUR_HOUSE_ID
  scan_interval: (optional) SECONDS_BETWEEN_UPDATES
   
climate:
  - platform: nexia
    
binary_sensor:
  - platform: nexia
    
sensor:
  - platform: nexia

Restart Home Assistant for the changes to take effect.

Concepts

The Nexia Thermostat supports the following key concepts.

Attributes

The following attributes are provided by the Nexia Thermostat aux_heat, away_mode, current_humidity, current_temperature, fan_list, fan_mode, firmware, friendly_name, hold_mode, humidity, humidify_supported, dehumidify_supported, humidify_setpoint, dehumidify_setpoint max_humidity, max_temp, min_humidity, min_temp, model, operation_list, operation_mode, setpoint_status, target_temp_high, target_temp_low, target_temp_step, temperature, thermostat_id, thermostat_name, zone_id, zone_status

aux_heat

Indicates whether or not aux heat / emergency heat is enabled.

Attribute type	Description
String	'on' or 'off'

away_mode

Indicates whether the 'away' preset is selected.

Attribute type	Description
String	'on' or 'off'

Attribute current_humidity

Provides you with the main thermostat's relative humidity. Outdoor humidity or zone specific humidity is not currently available via Nexia's published data.

Attribute type	Description
Float	current humidity

Attribute current_temperature

Provides you with the current zone's temperature.

Attribute type	Description
Integer	current temperature

Attribute fan_list

This is a list of all available fan modes you can select, separated by commas.

Attribute type	Description
String	'auto,on,circulate'

Attribute fan_mode

The currently selected fan mode.

Attribute type	Description
String	'auto', 'on', or 'circulate'

Attribute firmware

Provides you with the current firmware version of the main thermostat.

Attribute type	Description
String	firmware version

Attribute hold_mode

Indicates if a hold is currently in place on this zone. Examples of such are 'away', 'home', 'sleep', or 'evening'

Attribute type	Description
String	hold mode

Attribute humidity

The target dehumidify set point (%) of the system.

Attribute type	Description
Integer	dehumidify setpoint as an integer

Attribute humidify_supported

Indicates if the system supports humidification.

Attribute type	Description
Boolean	humidification supported

Attribute dehumidify_supported

Indicates if the system supports dehumidification.

Attribute type	Description
Boolean	dehumidification supported

Attribute humidify_setpoint

The target humidify set point (%) of the system.

Attribute type	Description
Integer	humidify setpoint as an integer

Attribute dehumidify_setpoint

Same as humidity The target dehumidify set point (%) of the system.

Attribute type	Description
Integer	dehumidify setpoint as an integer

Attribute max_humidity

Hard-coded value indicating the maximum dehumidify set point (%) you can set, as an integer.

Attribute type	Description
Integer	maximum humidity set point, always 65

Attribute max_temp

The maximum temperature set point of the zone. This can change based on the thermostat's settings.

Attribute type	Description
Integer	maximum temperature, such as 90

Attribute min_humidity

Hard-coded value indicating the minimum dehumidify set point (%) you can set, as an integer.

Attribute type	Description
Integer	minimum humidity set point, always 35

Attribute min_temp

The minimum temperature set point of the zone. This can change based on the thermostat's settings.

Attribute type	Description
Integer	minimum temperature, such as 55

Attribute model

The thermostat model, such as 'TZON1050AC52ZAA'

Attribute type	Description
String	thermostat model

Attribute operation_list

List of available operation modes such as 'AUTO,COOL,HEAT,OFF'

Attribute type	Description
String	operation modes

Attribute operation_mode

The current operation mode, such as 'AUTO', 'COOL', 'HEAT', or 'OFF'

Attribute type	Description
String	operation mode

Attribute setpoint_status

This provides you with a system set point status, such as 'Holding Permanently', 'Following Schedule - Away', or 'Following Schedule - Home'. This is not an exhaustive list.

Attribute type	Description
String	set point status

Attribute target_temp_high

The target cooling (upper-bound) temperature for the current zone.

Attribute type	Description
Integer	upper-bound target temperature

Attribute target_temp_low

The target heating (lower-bound) temperature for the current zone.

Attribute type	Description
Integer	lower-bound target temperature

Attribute target_temp_step

The step at which the temperature can be increased or decreased. For Fahrenheit, this is 1.0 degrees per step, and for Celsius, this is 0.5 degrees per step.

Attribute type	Description
Float	step

Attribute temperature

Based on the current system mode, this is the target temperature for the zone.

Attribute type	Description
Integer	target temperature

Attribute thermostat_id

This is the main thermostat's ID, here for reference. This will match up with the 'id' in the JSON data provided by Nexia.

Attribute type	Description
Integer	thermostat ID

Attribute thermostat_name

The name of the system. This will be shared across all zones of your Trane / American Standard system.

Attribute type	Description
String	thermostat name

Attribute zone_id

The zone ID for this particular zone, here for reference. This will match up with the 'id' in the JSON data provided by Nexia under the 'zones' list.

Attribute type	Description
Integer	zone ID

Attribute zone_status

The status of the zone, such as 'Cooling', or 'Heating"

Attribute type	Description
String	zone status

Services

The following climate services are provided by the Nexia Thermostat: set_aux_heat, set_away_mode, set_fan_mode, set_hold_mode, set_humidity, set_operation_mode, set_temperature, turn_on, turn_off

The service set_swing_mode offered by the Climate component is not implemented for this thermostat.

The following nexia climate service is provided by the Nexia Thermostat: set_aircleaner_mode

Service set_aux_heat

Enable the aux / emergency heat for the system. This is a system-wide setting.

Service data attribute	Optional	Description
entity_id	yes	String or list of strings that point at entity_id's of climate devices to control. Else targets all.
away_mode	no	'on' or 'off'

Service set_away_mode

Turns the away mode on or off for the thermostat.

Service data attribute	Optional	Description
entity_id	yes	String or list of strings that point at entity_id's of climate devices to control. Else targets all.
away_mode	no	'on' or 'off'

Service set_fan_mode

Sets the fan mode for the system. See the fan_list attribute for options. This is a system-wide setting.

Service data attribute	Optional	Description
entity_id	yes	String or list of strings that point at entity_id's of climate devices to control. Else targets all.
fan_mode	no	'auto', 'on', or 'circulate'

Service set_hold_mode

Puts the thermostat into the given hold mode. For 'home', 'away', 'sleep', and any other hold based on a reference climate, the target temperature is taken from the reference climate.

Service data attribute	Optional	Description
entity_id	yes	String or list of strings that point at entity_id's of climate devices to control. Else targets all.
hold_mode	no	home, away, sleep

Service set_humidity

Sets the dehumidify set point of the system. Range from 35-65. This is a system-wide setting.

Service data attribute	Optional	Description
entity_id	yes	String or list of strings that point at entity_id's of climate devices to control. Else targets all.
humidity	no	The dehumidify setpoint, like 50.

Service set_temperature

Puts the thermostat into a temporary hold at the given temperature.

Service data attribute	Optional	Description
entity_id	yes	String or list of strings that point at entity_id's of climate devices to control. Else targets all.
target_temp_low	no	Desired heating target temperature (when in auto mode)
target_temp_high	no	Desired cooling target temperature (when in auto mode)
temperature	no	Desired target temperature (when not in auto mode)

Only the target temperatures relevant for the current operation mode need to be provided.

Service set_operation_mode

Sets the current operation mode of the thermostat. See attribute operation_list for options.

Service data attribute	Optional	Description
entity_id	yes	String or list of strings that point at entity_id's of climate devices to control. Else targets all.
operation_mode	no	'AUTO', 'COOL', 'HEAT', or 'OFF'

Service turn_on

Turns the zone on.

Service data attribute	Optional	Description
entity_id	yes	String or list of strings that point at entity_id's of climate devices to control. Else targets all.

Service turn_off

Turns the zone off.

Service data attribute	Optional	Description
entity_id	yes	String or list of strings that point at entity_id's of climate devices to control. Else targets all.

Service set_aircleaner_mode

Part of the nexia. services. Sets the air cleaner mode. Options include 'AUTO', 'QUICK', and 'ALLERGY'. This is a system-wide setting.

Service data attribute	Optional	Description
entity_id	yes	String or list of strings that point at entity_id's of climate devices to control. Else targets all.
aircleaner_mode	no	'AUTO', 'QUICK', or 'ALLERGY'

Service set_humidify_setpoint

Part of the nexia. services. Sets the humidify setpoint. This is a system-wide setting.

Service data attribute	Optional	Description
entity_id	yes	String or list of strings that point at entity_id's of climate devices to control. Else targets all.
humidity	no	Humidify setpoint level, from 35 to 65.