Advanced Features

When you select the Clean Screen option, the screen is locked to prevent accidental changes to the thermostat while you clean the screen.

1. Touch MENU.

2. Scroll to and select Preferences.

3. Select Display.

4. Select Clean Screen.
   A prompt asks if you want to clean the screen for 30 seconds.

5. Touch Yes. A countdown timer displays elapsed time until the screen is reactivated.

You can adjust security options to prevent unauthorized changes to system settings.

1. Touch MENU.

2. Scroll to and select Screen Lock.

Screen Lock mode options

• Unlocked: Full access allowed.

• Partially locked: Only temperature can be changed.

• Fully locked: No access allowed.

There is an option in the SCREEN LOCK menu to require a passcode to change the Screen Lock setting. If you choose this option, the thermostat will provide a passcode. Make sure to save this.

When configured this way, you can select “Auto” as one of the options under “System mode”.

When a thermostat is set to Auto Changeover, the thermostat has a Heat setpoint and a Cool setpoint and can run either Heat or Cool as needed.

Auxiliary Heat:

Auxiliary Heat runs as backup to the heat pump. It runs with the heat pump when:

• The thermostat is set to Heat mode.

• Load conditions determine Backup Heat is needed.

Emergency Heat:

Emergency Heat runs when you manually switch the thermostat to the Em Heat mode. When the thermostat is in Emergency Heat mode, the heat pump is locked out.

Emergency Heat mode is only available when the thermostat is set to control a heat pump or PTAC plus one or more Backup Heat stages.

From the home screen touch Mode. You can set the thermostat to Heat, Off, Cool, Emergency Heat, or Auto. (Auto mode may not be available based on installer settings.)

Over time, the thermostat learns how long it takes your system to reach your programmed temperature setting.

The thermostat turns on the heating/cooling system early and assures that the programmed temperature setting is reached at the programmed time regardless of weather conditions. For example, if the Wake program period is set to 6:00 am with a heat setting of 70 degrees, the heat will turn on before 6:00 am, so the temperature is 70 degrees at 6:00 am. The thermostat displays "In Recovery” above the indoor temperature when it turns the system on early.

Adaptive Recovery calculates the recovery ramp based on how far the room temperature is away from the temperature setting, previous equipment performance and weather history, allowing the thermostat to start recovery at the optimal time so it can reach the programmed temperature setting at the programmed time. The thermostat uses two recovery ramps when set up to control a heat pump system; one ramp for the compressor and one ramp for the auxiliary heat. Once the room temperature intersects the compressor ramp, the compressor turns on until the set point is reached. If the room temperature does not rise quickly enough and intersects the second ramp, the auxiliary heat turns on. It takes about one week for the thermostat to adjust to weather conditions, equipment performance and construction of the home. If the temperature setting is reached too early or too late, the ramp is adjusted for the next day's recovery.

If you prefer not to use this feature, touch Menu > Preferences > Adaptive Recovery and select Off. Then the thermostat will not start heating or cooling in advance of the comfort schedule time.

“Feels Like Temperature” is a setting which takes the indoor relative humidity into account so that you can optimize comfort. For example, when the relative humidity is very high, 70°F feels much warmer than it does when the relative humidity is very low. For this reason, when Feels Like Temperature is enabled, the display may show a warmer temperature reading than other thermostats do when relative humidity is high.

If you prefer not to use this feature, it can be disabled in Menu > Preferences > Display > Feels Like Temperature.

The thermostat keeps the compressor off for a few minutes before restarting, to prevent equipment damage. During this “off” time, the message "Waiting for equipment" is displayed on screen.