Lennox S40 User Manual

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Go to Menu > Settings > Current Temperature. The Sleep Mode feature
displays beneath Participating Devices in Temperature Averaging Based on
Sleep.
Figure 17. Thermostat - Sleep Mode Feature
Figure 18. S40 Smart Thermostat App - Sleep Mode Feature
enAble/disAble sleeP mode
1. Click the toggle switch from OFF to ON to enable Sleep Mode.
2. Click the toggle switch from ON to OFF to disable Sleep Mode.
seT sleeP mode schedUle
1. Click the toggle switch from OFF to ON to enable Sleep Mode.
When Sleep Mode is enabled, the time scheduling elds From and To
display (see Figure 19).
Figure 19. From and To Scheduling Fields
NOTE: When Sleep Mode is disabled, the From and To Scheduling elds are
unavailable.
2. Click the double dash in the From eld. The Set Time dialog displays.
Figure 20. Set Time Dialog
3. Scroll to set the hour and minute to begin Sleep Mode.
4. Scroll to select between AM and PM and click Set.
5. Click the double dash in the To eld.
6. Repeat steps 3 and 4 to set when the Sleep Mode ends.
7. Select the Smart Room Sensor(s) and/or thermostat to participate in
temperature averaging. The sensor(s) and Sleep Mode schedule display
as conrmation of selections. See “Figure 21. Thermostat - Sleep Mode
Selections”.

Lennox S40 Specifications

General

Display	Color touchscreen
Voice Control	Amazon Alexa, Google Assistant
Energy Reports	Yes
Programming	7-day programmable
Warranty	5-year limited warranty
Connectivity	Wi-Fi
Compatibility	Lennox HVAC systems
Smart Features	Geofencing
Sensors	Temperature, Humidity