Honeywell TH8000 Series Operating Manual page 15

Program schedule override (permanent)
Press HOLD Adjust temperature
WED
FAN 70
Inside
AUTO
SYSTEM
HEAT
8:00
AM
Permanent
Hold
SCHED HOLD CLOCK SCREEN
Press CANCEL (or SCHED) to
resume program schedule
73
Set To
Heat On
MORE
CANCEL
Press HOLD to permanently adjust the
temperature. This will turn off the program
schedule.
Whatever temperature you set will be
maintained 24 hours a day until you manually
change it or press CANCEL (or SCHED) to cancel
"Hold" and resume the program schedule.

TH8000 Series