Honeywell TH8000 Series Operating Manual page 27

Advanced functions
UV lamp change reminder
Function This feature displays an alert to remind you to change the ultraviolet lamp.
0520
Press s/t to set the desired interval:
Options: 0 Off (no reminder to change UV lamp)
1 Reminder after 1 year
Program schedule periods
Function
Press s/t to set the number of program periods:
0540
Options: 2 Two program periods (Wake, Sleep)
4 Four program periods (Wake, Leave, Return, Sleep)
Clock format
Function
Press s/t to set the clock display format:
0640
Options: 12 12-hour clock (i.e., "3:30 pm")
24 24-hour clock (i.e., "15:30")
Screen lock
Function
Press s/t to choose a screen lock setting (see page 16):
0670
Options: 0 Screen is unlocked (fully functional)
1 All functions locked except temperature controls and CANCEL key
2 Screen is fully locked

TH8000 Series
Note: Press RESET
to cancel the alert