Pro 1 IAQ true comfort iii t721 User manual

This manual covers the following models:
s4OPERATING MANUAL
Caution:
%QUIPMENTDAMAGEHAZARDDo not operate the cooling
system if the outdoor
temperature is below 50˚ F
(10˚ C) to prevent possible
compressor damage.
Thermostat Quick Reference
Thermostat Operation
Set Time
More Information
Contact Us and Warranty Registration
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#ONGRATULATIONSONPURCHASINGANEWTHERMOSTATThis thermostat was
designed to the highest reliability and
ease of use standards. Thank you for
choosing Pro1.
® U.S. Registered Trademark. Patents pending.
Copyright © 2006 Pro1 IAQ, Inc. All rights reserved. Rev. 0850
4ABLEOF#ONTENTS0AGE.EED(ELPFor assistance with this product please visit
http://www.pro1iaq.com or call Pro1
Customer Care toll-free at 888-Pro1iaq
(776-1427) during normal business hours
(Mon-Fri 9 AM - 6 PM Eastern)
Una versión española de este
manual puede ser descargada
en www.pro1iaq.com

THERMOSTAT QUICK REFERENCE
"ATTERYDOORINFORMATIONUse the finger bevel on
the lower portion of the
side of the thermostat to
open the easy access
battery door. )MPORTANTThe low battery indicator is displayed
when the AA battery power is low. If
the user fails to replace the battery
within 21 days, the thermostat
display will only show the low battery
indicator as a final warning before the
thermostat becomes inoperable.
'ETTINGTOKNOWYOURTHERMOSTATLCD
&AN3WITCH33YSTEM3WITCH4%ASY#HANGE"ATTERY$OOR53ETPOINT"UTTONS65SER"UTTONSDisplays the user
selectable setpoint
temperature.
3YSTEMOPERATIONINDICATORSThe #//,(%!4or &!.icon will
display when the #//,(%!4or &!.is on.
NOTE: The compressor
delay feature is active if
these icons are flashing.
The compressor will not
turn on until the 5 minute
delay has elapsed.
Days of the
week and time
Button
options
'LOWINTHE$ARK,IGHT"UTTON6
3 4
5,OW"ATTERY)NDICATOR
Replace batteries when
indicator is shown.
will appear in the
display when the auxiliary
heat is active.
Indicates the current
room temperature.

THERMOSTAT OPERATION
3
Caution:
When the battery icon
appears replace your AA
batteries immediately. Failure
to do so may result in your
heating & cooling system
becoming inoperable.
%ASYTOUSECONTROLS,#$$ISPLAY
See page 2 for details about this
display read out.
3
4
5
'LOWINTHE$ARK,IGHT"UTTONThe glow in the dark light button will
self illuminate for several hours after
exposure to ambient light. This button
turns on the display light when pressed. 4EMPERATURE3ETPOINT"UTTONSPress the or buttons to
select the desired room temperature.
65SER"UTTONSUse these buttons to set the time.
Refer to the next page for instructions.
&AN3WITCHSelect ON or !54/. ON will run
the fan continuously. !54/will cycle
the fan on only when the heating or
cooling system is on. 3YSTEM3WITCHSelects the operation mode of your
HVAC system. Selecting (%!4turns
on the heat mode. Selecting COOL
turns on the air conditioning mode.
Selecting OFF turns both heating
and cooling off. Selecting %M(locks
out your compressor and turns on
the secondary heat mode.
63 4
5

SET TIME
4
)MPORTANTYou will see a 4%#(3%4
option after the MENU key
is pressed.
This 4%#(3%4key is for
installer configuration and
should ./4be changed
unless you consult your
Professional Heating and
Air Conditioning Technician.
3ET4IMEFollow the steps below to set the current time:
Press MENU
Press 3%44)-%Day of the week will be flashing.
Use the or key to select the current
day of the week.
Press .%8434%0The current hour is flashing.
Use the or key to select the current
hour. When using 12-hour time, make sure the
correct a.m. or p.m. choice is selected.
Press .%8434%0Minutes are now flashing.
Use the or key to select
current minutes.
Press DONE when completed
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3.
4.
5.
6.
7.
8.

MORE INFORMATION
5
&ILTER#HANGE2EMINDERIf your installing contractor has configured
the thermostat to remind you when the air
filter needs changed, you will see &),4in the
display when your air filter needs changed.
&),4will be shown in the display after your
system has run long enough to require an air
filter change.
Resetting the filter change reminder: When
&),4reminder is displayed, you should
change your air filter and reset the reminder
by holding down the second button from the
top left side of the thermostat for 3 seconds. 5NDERSTANDING4HERMOSTAT3TAGINGYour thermostat will control two stages of
heating. The thermostat will try to maintain
your comfort setting using the first stage for
energy efficiency. The second stage of heating
will only be used if your thermostat cannot
maintain your comfort setting using only one
stage. When the second stage is used you will
see in the display.
Hold down for 3 seconds,
to reset filter reminder.

CONTACT US AND WARRANTY INFORMATION
7ARRANTY2EGISTRATIONYour new Pro1 thermostat has a 5 year limited warranty. You must register your warranty
within 60 days of installation. You can register your new thermostat in 2 ways.
Go to www.pro1iaq.com, select warranty registration and fill out a short registration form.
ORComplete the form below and mail it to the address shown.
Name: ____________________________
!DDRESS____________________________
____________________________
#ITY____________________________
3TATE____________________________
Zip: _____________________ 4HERMOSTAT-ODEL_____________________
$ATE)NSTALLED_____________________
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#ONTACT5S)NFORMATION0RO)!17ARRANTY2EGISTRATIONPro1 IAQ Inc.
1111 S. Glenstone
Suite 2-100
Springeld, MO 65804
Toll-free: 1-888-Pro1iaq (776-1427)
Toll Number (Outside the USA): 330-821-3600
Web: http://www.pro1iaq.com
Hours of Operation: Monday - Friday 9 AM - 6 PM Eastern
Complete form and mail to:
Pro1 IAQ Inc.
1111 S. Glenstone
Suite 2-100
Springeld, MO 65804