Amazon Alexa Setup; Using Alexa In Celsius - York Hx 3 S1-THXU280 User's Information Manual

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AMAZON ALEXA SETUP

You can use Alexa with the Hx 3 Touch Screen Thermostat. Ensure that
Alexa is installed, enabled, and connected to your home Wi-Fi network,
and that the Alexa app is installed on a smart device.
From the Settings screen, tap Connect Alexa and follow the in-app
instructions. See Figure 48.

Using Alexa in Celsius

If required, you can use degrees Celsius rather than degrees Fahrenheit
as the unit of temperature in Alexa. To do so:
1. From the smart device, in the Alexa app, tap Settings.
2. Locate and select Celsius as the unit of temperature.
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Figure 48: Connect Alexa screen
A1428-001
Johnson Controls Ducted Systems