Source 1 S1-TBSU304-S Owner's Manual & Installation Instructions page 8

Get To Know Your Thermostat
Display Features
1
The scrolling display will be used to help you easily navigate
the setup screens in the thermostat.
2 Clock
Indicates the current time.
3 Mode Indicators
Selects the operational mode of the equipment.
HEAT - Indicates the heating mode.
COOL - Indicates the air conditioning mode.
HEAT & COOL - Indicates the system will automatically change-over
between heat and cool modes as the temperature varies.
OFF - Indicates heating and cooling is turned off.
4 Room Temperature Display
Indicates the current room temperature and displays the outdoor
temperature when selected.
5 Outdoor icon
Indicates the temperature displayed is from the optional
outdoor sensor.
18:88
2 Am
Pm
188
Setup Step
Day Night
Morning
Evening
Fan On
5
Outdoor
188
2nd
188
Stage
C L
OO
Override
A H
UX EAT
88
4
3
1
3
HI
3
Lo