Pro 1 IAQ T621-2 User manual

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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THERMOSTAT
LCD

&AN3WITCH
33YSTEM3WITCH
4%ASY#HANGE"ATTERY$OOR
53ETPOINT"UTTONS

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.
Displays the user
selectable setpoint
temperature.
3YSTEMOPERATION
INDICATORS ON will
display when the
#//,(%!4or
%MERGENCY(EATis on.

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
44EMPERATURE3ETPOINT"UTTONS
Press the or buttons to
select the desired room temperature.
&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 (%!4 turns
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.

3
4
5NDERSTANDING4HERMOSTAT3TAGING
Your 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.

4
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 _____________________
#ONTACT5S)NFORMATION
0RO)!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