Bryant Legacy Owner's Manual page 22

Programming the Thermostat
The thermostat has preset periods (see below), but you can change
these to fit your lifestyle.
Period
P1
P2
P3
P4
What time blocks work for you? Write them in here and refer to this as
you make the changes on the thermostat.
Period
P1
P2
P3
P4
Preset Hours
6:00 AM to 8:00 AM
8:00 AM to 5:00 PM
5:00 PM to 10:00 PM
10:00 PM to 6:00 AM
Your Hours
21