Main Menu

From Home Screen, touch the Menu at bottom left of the display. (If this is not shown at home screen, touch screen to wake display first).

WiFi

See WiFi Setup and Troubleshooting for more information

Schedule

  • Create new schedule – (Set a time-based schedule).

  • Turn Off Schedule.

To enable Auto-Away / Geofencing, use the First Alert App.

See Scheduling for more information.

Connect App

See Using the First Alert App for more information.

Screen Lock

See Screen Lock setting for more information.

Preferences

Preference menu options let you select how the thermostat displays information or responds to certain situations.

To access the Preferences menu:

  • Touch Menu.

  • Scroll to and select Preferences.

  • Select an option and follow prompts.

  • After any changes, touch Save to save your settings.

Preferences Options

  • Date & Time

  • Display

  • Reminder settings

  • Adaptive Recovery

  • Fallback Room (if wireless sensors are used)

  • Temperature Limits

  • Freeze Protection

  • Audio (when using Doorbell Integration)

Display Settings

  • Idle Screen (See Idle Screen)

    • Choose Idle Screen color and Style

  • Idle Screen Behavior (S900 doesn’t have an onboard radar sensor and will not show this)

    • Transition on detection

    • Transition on Tap

  • Temperature Units

    • Farenheit

    • Celsius

  • Language

    • English

    • Francais

    • Español

  • Feels Like Temperature (Takes humidity in account to optimize comfort. See Feels like Temperature)

    • On

    • Off

  • App Change Behavior (Light up when temperature change is made by app)

    • On

    • Off

  • Indoor Display Offsets

    • Temperature -3°F to 3°F or -1.5°C to 1.5°C

    • Humidity 12% RH to 12% RH

  • Clean Screen

    • Timer where display will not change settings when being cleaned.

Reminder Settings (Settings shown vary based on Setup settings)

  • Air Filter 1

  • Humidifier Tank/Water Filter

  • Humidifier Pad

  • Dehumidifier Filter

  • Ventilator Core

  • Ventilator Filter

  • UV Bulb 1

  • UV Bulb 2

Adaptive Recovery

  • On

  • Off

Fallback room

  • Thermostat

  • The name of each wireless sensor used is shown below thermostat

Air Quality

See Indoor Air Quality Control and Monitoring for more information

Devices and Sensors (S900 doesn’t have this setting)

  • Add a wireless sensor.

  • Identify a wireless sensor.

  • Thermostat:

    • Model

    • Temperature & humidity readings

    • Motion detected status

    • WiFi network

    • MAC ID

    • IPV54 address

    • Change room name

  • Indoor Air Sensor:

    • Firmware version

    • Battery strength

    • Wireless signal strength

    • Temperature and Humidity readings

    • Options:

      • Rename sensor (select Room name).

      • Use motion (Allows you to choose not to allow motion to be used from a one or more sensors when “active rooms” is selected in the priority menu.

      • Motion Sensitivity (HIGH = Triggered when very little motion is detected, MEDIUM = triggered when a moderate amount of motion is detected, LOW = triggered only when a lot of motion is detected).

      • Delete (Removes that sensor from the thermostat).

      • Blink lights (Will make the light on the indoor sensor you selected blink to help identify which sensor is matched with each name in the sensor menu.)

Thermostat Information

  • MAC Address

  • IP Address

  • Date Code

  • Firmware Version

  • Model Number

  • Build Date

Equipment Status

  • System mode

  • Heat stages (on or off)

  • Cool stages (on or off)

  • Fan on or off

  • IAQ (Hum, Dehum, or Vent) on or off

Matter

See Matter Setup for more information

Notifications

Only displayed when there are active alerts/notifications. Touch Alerts to see details. (See Alerts and Reminders)

Priority

If wireless indoor temperature/humidity/motion sensors are used, select which sensors are used for temperature control. Choose ACTIVE ROOMS (Rooms with sensors detecting motion) or SELECTED ROOMS (Manually select which sensors to use).

Humidification

  • View current indoor humidity level & setting.

  • View humidifier status (humidifying, idle, off).

  • Change humidity setting.

  • Options turn on or off humidifier control, change window protection setting.

Dehumidification

  • View current indoor Dehumidity level & setting.

  • View dehumidifier status (dehumidifying, idle, off).

  • Change Dehumidity setting.

  • Options turn on or off dehumidifier control.

Ventilation

  • View or change mode (Auto or Off).

  • Timed ventilation 180 minutes max.

the ventilation menu will show the CFM and wattage of the ventilator while ventilator is running.