Pro1 T621-2 Operation manual - Manual (Page 2)

THERMOSTAT QUICK REFERENCE
Battery door information
2
Use the finger bevel on
the lower portion of the
side of the thermostat to
open the easy access
battery door.
Important:
The low battery indicator is displayed
when the AA battery power is low. If
the user fails to replace the battery
within 21 days, the thermostat
display will only show the low battery
indicator as a final warning before the
thermostat becomes inoperable.
Getting to know your thermostat
LCD 1
2 Fan Switch
3 System Switch
4 Easy Change Battery Door
5 Setpoint Buttons
1
2 3
4
5
Low Battery Indicator:
Replace batteries when
indicator is shown.
+1 will appear in the
display when the auxiliary
heat is active.
Indicates the current
room temperature.
Displays the user
selectable setpoint
temperature.
System operation
indicators: ON will
display when the
COOL, HEAT or
Emergency Heat is on.