Honeywell TH4210U2002 Installation Instructions Manual page 6

Installer setup (ISU)
1 Press and hold CENTER and
approximately 3 seconds to enter advanced
menu.
2 Press Select to enter ISU.
3 Press Select to cycle through menu setup
options.
4 Press or
from available options.
5 Press Select and confirm your settings or
press Back to ignore changes and return
to ISU menu screen to continue editing
another setup option.
6 To finish setup process and save your
setting, press Home and return to Home
screen.
NOTE: A complete list of all setup (ISU)
parameters and options starts below and
continues through page 9.
Advanced setup options (ISU)
NOTE: Depending on system settings, not all options may be available.
# ISU ISU Name
120 Scheduling Options
125 Temperature Indication Scale
200 Heating System Type
buttons for
to change values or select
ISU Options (factory default in bold)
0 = Non-Programmable
2 = 5-2 Programmable
3 = 5-1-1 Programmable
4 = 7-Day Programmable
Note: You can change default MO-FR, SA-SU schedule here.
To edit periods during days, temperature setpoints, or to turn
Schedule On/Off, touch MENU and go to SCHEDULE.
0 = Fahrenheit
1 = Celsius
1 = Conventional Forced Air Heat
2 = Heat Pump
3 = Radiant Heat
5 = None (Cool Only)
Note: This option selects the basic system type your thermostat
will control.
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