# Set the HVAC Mode

* [Request Parameters](#request-parameters)
* [Response](#response)

Sets the [HVAC mode](https://docs.seam.co/latest/capability-guides/thermostats/configure-current-climate-settings) for a specified [thermostat](https://docs.seam.co/latest/capability-guides/thermostats).

{% tabs %}
{% tab title="JavaScript" %}
Sets the HVAC mode for a specified thermostat.

**Code:**

```javascript
await seam.thermostats.setHvacMode({
  device_id: "5d5c3b30-5fed-47a3-9df1-ed32f32589e5",
  hvac_mode_setting: "heat_cool",
  heating_set_point_celsius: 20,
  cooling_set_point_celsius: 25,
});
```

**Output:**

```javascript
{
  "action_attempt_id": "b0e1d2c3-4f5e-6a7b-8c9d-0e1f2a3b4c5d",
  "action_type": "SET_HVAC_MODE",
  "error": null,
  "result": {},
  "status": "success"
}
```

{% endtab %}

{% tab title="cURL" %}
Sets the HVAC mode for a specified thermostat.

**Code:**

```curl
curl --include --request POST "https://connect.getseam.com/thermostats/set_hvac_mode" \
  --header "Authorization: Bearer $SEAM_API_KEY" \
  --json @- <<EOF
{
  "device_id": "5d5c3b30-5fed-47a3-9df1-ed32f32589e5",
  "hvac_mode_setting": "heat_cool",
  "heating_set_point_celsius": 20,
  "cooling_set_point_celsius": 25
}
EOF
```

**Output:**

```curl
{
  "action_attempt": {
    "action_attempt_id": "b0e1d2c3-4f5e-6a7b-8c9d-0e1f2a3b4c5d",
    "action_type": "SET_HVAC_MODE",
    "error": null,
    "result": {},
    "status": "success"
  }
}
```

{% endtab %}

{% tab title="Python" %}
Sets the HVAC mode for a specified thermostat.

**Code:**

```python
seam.thermostats.set_hvac_mode(
    device_id="5d5c3b30-5fed-47a3-9df1-ed32f32589e5",
    hvac_mode_setting="heat_cool",
    heating_set_point_celsius=20,
    cooling_set_point_celsius=25,
)
```

**Output:**

```python
ActionAttempt(
    action_attempt_id="b0e1d2c3-4f5e-6a7b-8c9d-0e1f2a3b4c5d",
    action_type="SET_HVAC_MODE",
    error=None,
    result={},
    status="success",
)
```

{% endtab %}

{% tab title="Ruby" %}
Sets the HVAC mode for a specified thermostat.

**Code:**

```ruby
seam.thermostats.set_hvac_mode(
  device_id: "5d5c3b30-5fed-47a3-9df1-ed32f32589e5",
  hvac_mode_setting: "heat_cool",
  heating_set_point_celsius: 20,
  cooling_set_point_celsius: 25,
)
```

**Output:**

```ruby
{
  "action_attempt_id" => "b0e1d2c3-4f5e-6a7b-8c9d-0e1f2a3b4c5d",
  "action_type" => "SET_HVAC_MODE",
  "error" => nil,
  "result" => {
  },
  "status" => "success",
}
```

{% endtab %}

{% tab title="PHP" %}
Sets the HVAC mode for a specified thermostat.

**Code:**

```php
$seam->thermostats->set_hvac_mode(
    device_id: "5d5c3b30-5fed-47a3-9df1-ed32f32589e5",
    hvac_mode_setting: "heat_cool",
    heating_set_point_celsius: 20,
    cooling_set_point_celsius: 25,
);
```

**Output:**

```php
[
    "action_attempt_id" => "b0e1d2c3-4f5e-6a7b-8c9d-0e1f2a3b4c5d",
    "action_type" => "SET_HVAC_MODE",
    "error" => null,
    "result" => [],
    "status" => "success",
];
```

{% endtab %}

{% tab title="Seam CLI" %}
Sets the HVAC mode for a specified thermostat.

**Code:**

```seam_cli
seam thermostats set-hvac-mode --device_id "5d5c3b30-5fed-47a3-9df1-ed32f32589e5" --hvac_mode_setting "heat_cool" --heating_set_point_celsius 20 --cooling_set_point_celsius 25
```

**Output:**

```seam_cli
{
  "action_attempt_id": "b0e1d2c3-4f5e-6a7b-8c9d-0e1f2a3b4c5d",
  "action_type": "SET_HVAC_MODE",
  "error": null,
  "result": {},
  "status": "success"
}
```

{% endtab %}
{% endtabs %}

<details>

<summary>Authentication Methods</summary>

* API key
* Client session token
* Personal access token\
  Must also include the `seam-workspace` header in the request.

To learn more, see [Authentication](https://docs.seam.co/latest/api/authentication).

</details>

## Request Parameters

**`device_id`** *String* (Required)

ID of the thermostat device for which you want to set the HVAC mode.

***

**`hvac_mode_setting`** *String* (Required)

***

**`cooling_set_point_celsius`** *Number*

[Cooling set point](https://docs.seam.co/latest/capability-guides/thermostats/understanding-thermostat-concepts/set-points) in °C that you want to set for the thermostat. You must set one of the `cooling_set_point` parameters.

***

**`cooling_set_point_fahrenheit`** *Number*

[Cooling set point](https://docs.seam.co/latest/capability-guides/thermostats/understanding-thermostat-concepts/set-points) in °F that you want to set for the thermostat. You must set one of the `cooling_set_point` parameters.

***

**`heating_set_point_celsius`** *Number*

[Heating set point](https://docs.seam.co/latest/capability-guides/thermostats/understanding-thermostat-concepts/set-points) in °C that you want to set for the thermostat. You must set one of the `heating_set_point` parameters.

***

**`heating_set_point_fahrenheit`** *Number*

[Heating set point](https://docs.seam.co/latest/capability-guides/thermostats/understanding-thermostat-concepts/set-points) in °F that you want to set for the thermostat. You must set one of the `heating_set_point` parameters.

***

## Response

{% hint style="success" %}
Returns: [**action\_attempt**](/latest/api/thermostats.md)
{% endhint %}

{% tabs %}
{% tab title="JSON" %}

```json
{
  "action_attempt_id": "b0e1d2c3-4f5e-6a7b-8c9d-0e1f2a3b4c5d",
  "action_type": "SET_HVAC_MODE",
  "error": null,
  "result": {},
  "status": "success"
}
```

{% endtab %}
{% endtabs %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.seam.co/latest/api/thermostats/set_hvac_mode.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.