Honeywell PRESTIGE THX9321 User manual

About your new thermostat
Your new thermostat is pre=programmed and ready to go. Just check the settings
below and change if needed:
1. Set date and time .................................................................................. See page 4
2. Select fan setting .................................................................................. See page 5
3. Select system setting ........................................................................... See page 6
4. Program schedules: Preset for maximum cost savings ............. See pages 7-10
5. Set humidification & dehumidification controls ................... Seepages 17-19
ONE-TOUCHTEMP CONTROL:Youcan overridetheprogramscheduleatanytime,andmanually
adjustthetemperature(seepages9-10).
He p:
FOr assistance please visit httP:ilyouthome,honeywelLcom, or call to!!-free:
1=800-.468_1502 (if product !S used in ahome)
1=888:245=1051 (if product is used in a workp!aoe)
Read and save these instructions,
®U.S. Registered Trademark.
Copyright ® 2011 Honeywell International Inc.
All rights reserved,

Prestige _THX9821/THX9421 Thermostat
Table of contents
Programming & Operation
Quick reference .................................. 2
Date/time settings .............................. 4
Fan settings ........................................ 5
System settings .................................. 6
Energy Saver settings ........................ 7
Using program schedules .................. 8
Schedule overrides ............................. 9
Menu options
System status ................................... 11
Vacation/event scheduler ................. 12
Humidity controls ............................. 17
Ventilation controls ........................... 20
Preferences menu ............................. 21
Temporary schedule changes .......... 22
Screen cleaning ................................ 23
Security settings ............................... 24
Installer contact information ............ 25
Advanced features ........................... 26
Appendices
Installer options ................................ 27
Battery replacement ......................... 28
Humidity display ............................... 30
Optional accessories ........................ 31
In case of difficulty ........................... 34
Limited warranty ............................... 35
CAUTION:EQUIPMENTDAMAGEHAZARD.Topreventpossiblecompressordamage,donot
operatecoolingsystemwhenoutdoortemperatureis below50°F(10°C).
Thisthermostatcontainsa LithiumbatterywhichmaycontainPerchloratematerial.
Specialhandlingmayberequired.Seewww.dtsc.ca.gov/hazardouswaste/perchlorate.
1 69-2493EFS--Ol

OperatingManua/
Quick reference: residential use
Display Controlfanoperation Selectsystem
homescreen (seepage 5) type (seepage6)
Changedateor
time(seepage4)
Displaymenu
options(see
pages11-26)
Outdoortemperature
andhumidity
Currentsystem
status
Adjust
temperature
settings(see
pages9-10)
Currentprogramstatus Indoortemperatureandhumidity
i_ Outdoortemperatureandhumidityare displayed
onlyif anoptionaloutdoorairsensorisinstalled.
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Prestige_THX9821/THX9421Thermostat
Quick reference: commercial use
Display Controlfanoperation Selectsystem
homescreen (seepage5) type (seepage6)
Changedateor
time(seepage4)
Displaymenu
options(see
pages11-26)
Outdoortemperature Adjust
andhumidity temperature
settings(see
pages9-10)
Currentsystem
status
Presstooverrideprogramtemporarily
Outdoortemperatureandhumidityare displayed
onlyif anoptionaloutdoorairsensorisinstalled.
Thermostatlocationand
currentprogramstatus
Indoor
temperature
andhumidity
369-2493EFS--01

OperatingManua/
Date/time settings
Pressdate/timedisplay
Pressto selectdateor time
Pressarrow buttonsto change
MCR32960
To set the date or time, press the
date/time display, then select SETTiME
or SETDATE.
Press the A or y buttons until the
proper time/date is displayed, then
press DONE to save and exit (or press
CANCEL to exit without changing the
time).
i_ ThethermostatwillswitchtoandfromDaylight
SavingTimeautomatically.
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Prestige_THX9821/THX9421 Thermostat
Fan settings
PressFAN
MCR32961
MCR32962
®
®
On: Fan is always on.
Automatic: Fan runs only when
heating or cooling system is on.
• Circulate: Fan runs randomly,
about 35% of the time (residential
models only).
•Follow Schedule: Fan controlled
by program (see pages 7=8).
Incommercialuse,pressAUTOMATICorON
to temporarilyoverridetheprogrammedfan
schedule.
Incommercialuse,theCIRCULATEoptionis
notavailable.
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OperatingManua/
System settings
PressSYSTEM
Pressany displayedoption
MCR32963
PressHELPformoreinformationabout
theseoptions.
MCR32964
Press SYSTEM,then select any option
(press A or y to scroll menu):
•Heat: Thermostat controls only the
heating system.
•Coo|: Thermostat controls only the
cooling system.
•Automatic: Thermostat selects
heating or cooling as needed.
• Off: Heating and cooling system is
off. Fan will still operate if fan is set
to On or Circulate.
Emergency Heat (only for
heat pumps with auxiliary heat):
Thermostat controls Auxiliary Heat.
Compressor is not used.
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Prestige_THX9321/THX9421 Thermostat
Energy Saver settings for maximum cost savings
These default Energy Saver settings can reduce expenses by as much as 33%.
(See next page to customize each time period.)
@
C
@
.m
@
at
Period
Wake
Leave
Retu rn
Sleep
8tart time
6:00 am
8:00 am
6:00 pm
10:00 pm
Heat
(Mon-Fri)
70 °
62 °
70 °
62 °
Cool
(Mon-Fri)
78 °
85 °
78 °
82 °
Neat
(Sat-Sun)
70 °
82 °
70 °
62 °
Cool
(Sat-Sun)
78 °
85 °
78 °
82 °
@
o
@
E
E
o
O
Period Start time Heat Cool Fan
Occupied I 8:00 am 70 ° 75 ° On
Unoccupied I 10:00 pm 55 ° 85 ° Auto
I I
Occupied 2* 12:00 am 70 ° 75! On
Unoccupied2* ' 12:00am 85 ° Auto
*Period2 iscancelledby default.Ifyouactivateit,thevaluesshownabovearedefaultsettings.
769-2498EFS--01

OperatingManual
To adjust program schedules
PressMENU
Press CREATE/EDITSCHEDULE
Pressany displayedoption
MCR32965
MCR32966
MCR32967
Press MENU,then CREATE/EDIT
SCHEDULEto display options:
• Guide me: This option creates a
schedule for you, by asking simple
questions.
•|'ll do it myself: This is a faster
way to create a schedule manually.
•View/Edit: This displays the full
schedule, so you can make quick
adjustments.
Toreducecosts,you shouldusethepre-set
EnergySaversettings(seepage7).
PressHELP at anymenuscreenfor more
informationaboutscheduleoptions.
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