Honeywell RTH221 Series - Clock Display

Advanced Installation Guide
69-2606ES— 01 18
SETUPWIRINGASSISTANCETROUBLESHOOTING
System setup
Function 20: Clock Display
0 12-hour display
1 24-hour display
Press the s or t button to select clock display.
Press to
change
setting.
When finished,
press s and t
to advance to
the next function.
M32719
AND
OR
20
0
M32724