2
Current display.
Underlined label
signifies the current display.
Mode control buttons.
Use to change
settings for Fan or System.
Menu.
Select options to: set schedules,
view equipment status, change IAQ
settings, access installer options*, etc.
Current status.
Shows system mode
(heat/cool), outdoor temperature (with
optional outdoor sensor).
Current schedule.
Shows desired
temperature and schedule status.
Indoor conditions.
Shows indoor
temperature.
Current Time.
Alert Light.
On when alert
message is active or system is set
to Em Heat. Flashes for battery-only
power; on continuous for 24 VAC.
microSD Card Port.
Use card
to load settings and dealer
information.
Reference to key features
* Password is the date code.
Getting started
Follow these basic steps to install this thermostat,
and set installer options.
1
Installing the thermostat
2
Performing initial setup
3
Finding your password (Date Code)
• To make changes to Installer Setup
• To perform an Installer Test
Residential/Résidentie
l
1-800-468-1502
http://yourhom
e.hone
yw
ell.co
m
Co
mmercial/
Co
mmercial
e
1-888-245-1051 http://custome
r.hone
yw
ell.co
m
Hone
yw
ell, Golden
Va
lle
y, MN 55422
RoHs Compliant
Conformité RoHs
Assembled in Mexico
Assemblé au Mexique
TH8321R1001
1
1324
M3550
5
Residential/Résidentiel 1-800-468-1502 http://yourhome.honeywell.com Commer
cial/Commer
cial
e
1-888-245-1051 http://customer
.honeywell.com
Honeywell, Golden V
alley
, MN 55422
RoHs Compliant
Conformité RoHs
Assembled in Mexico
Assemblé au Mexique
TH8320NR1016
1
1324
Thermostat (back view)
Password
(Date Code)