T B --- PA C
T B --- P H P
Base Series Programmable Thermostats
Installation Instructions
included in literature and attached to the unit. Consult local
building codes and the current editions of the National Electrical
Code (NEC) NFPA 70.
Designed and Assembled
in the USA.
In Canada, refer to the current editions of the Canadian Electrical
Code CSA C22.1.
US patents: US20060165149 A1, USD578026 SI, US6205041 B1
Recognize safety information. This is the safety--alert symbol
.
When you see this symbol on the unit and in the instructions or
manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, and
CAUTION. These words are used with the safety--alert symbol.
DANGER identifies the most serious hazards which will result in
severe personal injury or death. WARNING signifies a hazard
which could result in personal injury or death. CAUTION is used
to identify unsafe practices which may result in minor personal
injury or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability, or
operation.
INTRODUCTION
There are two Base Series programmable thermostat models, one
for AC applications and one for HP applications. Both are dual
powered, operating from either 24VAC or two alkaline AA
batteries. Configuration and program schedules are stored in
non--volatile memory, preserving this information during power
loss and battery removal. Features include simplified 5/2 day
programming, large backlit display, and modern styling.
A07107
Base Series Programmable Thermostat
NOTE: Read the entire instruction manual before starting the
installation
TABLE OF CONTENTS
The AC model provides one stage of heating and one stage of
cooling.
PAGE
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . 1
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 1 — Thermostat Location . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 — Install Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 3 — Set Thermostat Configuration . . . . . . . . . . . . . . . . . 3
Step 4 — Understand Thermostat Operation . . . . . . . . . . . . . . 3
Step 5 — Check Thermostat Operation . . . . . . . . . . . . . . . . . . 4
WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
The HP model provides two stages of heating and one stage of
cooling.
INSTALLATION CONSIDERATIONS
AC Operation
For 24VAC operation, both the R and C wires must be connected
to the 24VAC power source. Batteries are not needed.
Battery Operation
When batteries are used, the common (C) connection is not needed,
saving a wire, and eliminating 24VAC operation. The thermostat
continues to operate in the event of a power failure. Battery life is
expected to be one year. A “low battery” reminder tells the
homeowner when it is time to replace the batteries. When
connected without the common wire, the thermostat will not
operate without batteries. Continuous back--lighting is not
available.
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal injury, or property
damage. Consult a qualified installer, service agency, or your
distributor or branch for information or assistance. The qualified
installer or agency muse use factory--authorized kits or accessories
when modifying this product. Refer to the individual instructions
packaged with the kits or accessories when installing.
Both Battery and AC Operation
If both batteries and 24VAC operation are used (batteries installed
and the common wire connected), and indefinite clock operation
are provided, the battery will be used only during AC power loss,
extending battery life to nearly its shelf life.
A jumper has to be properly set for backlight operation. J2 should
be set in the “AC” position when the thermostat is operated from
24VAC. J2 should be set in the “BAT” position when the
Follow all safety codes. Wear safety glasses, protective clothing,
and work gloves. Have a fire extinguisher available. Read these
instructions thoroughly and follow all warnings or cautions
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14. Turn ON power to unit.
On power up, depending on the thermostat model being used, the
LCD readout will display either AC for air conditioner model
(1--stage heat/1--stage cool) or HP for heat pump model (2--stage
heat/1--stage cool).
Step 3 — Set Thermostat Configuration
Configuration options enable the installer to configure the
thermostat for a particular installation.
These are not presented to the homeowner and therefore must be
properly set by the installer. Following is a list of the options
available, an explanation of their function, and their factory default
settings. Not all numbers are used in the Base Series because not all
options are available in this series.
Configuration Options -- Summary:
Option 01 -- Equipment type
Option 03 -- Fahrenheit/Centigrade
Option 04 -- Fan (G) on with W output
Option 10 -- Reversing valve
Option 13 -- Room air temperature offset
Option 21 -- Keypad Lockout
Option 26 -- Minimum Cooling Setpoint
3
pressing UP and FAN buttons simultaneously or changing the
setpoint will override the timer for 1 cycle.
Minimum on Timer
If the internal non--volatile memory fails, E4 will alternately flash
with the temperature on the display and all heating and cooling
outputs will be turned off. The thermostat must be replaced.
Step 5 — Check Thermostat Operation
Fan Operation
Once the equipment has turned on, it will remain on for a
minimum of 3 minutes regardless of demand. However, the
equipment can turn off in less than 3 minutes if a change in
setpoint, or a change in mode occurs.
1. Press FAN button. This will start continuous fan operation.
FAN ON icon will turn on.
2. Press FAN button again. This will stop continuous fan oper-
ation. FAN ON icon will turn off.
Staging Timer
If the thermostat is a heat pump model, it has 2--stage heat
capability. In normal operation there is a 15--minute delay between
the first and second stages of heat. The Y output will energize first,
then 15 minutes later, W is allowed to come on if the thermostat
determines it is not satisfying the demand.
However, if the heating demand is greater than 5_F/3_C, there will
be only a 30 second delay before bringing on W.
Heating Operation
1. Press H/C button until HEAT is displayed.
2. Press UP button until LCD readout reads 3_F/2_C above
room temperature. Press UP and FAN buttons simultan-
eously to defeat timers. Heating system should begin to op-
erate immediately.
3. For HP thermostats only, press H/C button until EMHT
(emergency heat) appears. Press UP and FAN buttons sim-
ultaneously to defeat timers. Emergency heating (W is ON,
Y is OFF) should begin immediately.
Auxiliary Heat Indicator
When operating a heat pump and either auxiliary heat or
emergency heat is active, an LCD display icon indicates this
condition.
Cooling Operation
1. Press H/C button until COOL is displayed.
2. Press DOWN button until LCD readout reads 3_F/2_C be-
low room temperature. Press UP and FAN buttons simultan-
eously to defeat timers. Cooling system should begin to op-
erate immediately.
Table 1 shows the thermostat outputs for each available stage of
heating or cooling. It may be useful in checkout or
troubleshooting.
A07821
Error Messages
If the room temperature sensor fails, two dashes (----) will appear in
the temperature display and all heating and cooling outputs will be
turned off. The thermostat must be replaced.
Table 1 – Outputs
EQUIPMENT
CONFIGURATION
OPTION #1
THERMOSTAT
TYPE
CONFIGURATION
COOL
STAGE 1
HEAT
STAGE 1
HEAT
STAGE 2
EM HEAT
AC, PC
AC, HP
HP
Y, G
W
--- ---
--- ---
W
HP, PH
RVS = C
Y, G, O / B
Y, G
Y, G
Y, G, W
HP, PH
RVS = H
HP
Y, G, O / B
Y, G, W, O / B
W
WIRING DIAGRAMS
A06566
A06567
Fig. 1 -- A/C Thermostat Typical Installation
Fig. 2 -- HP Thermostat Typical Installation
C a t a l o g N o : T B --- PA C --- 7 S I
Copyright 2009 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231
Printed in U.S.A.
Edition Date: 05/09
R e p l a ce s: TB --- PA C --- 6 SI
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
4
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T B --- PA C
T B --- P H P
Base Series Programmable Thermostats
Homeowner’s Guide
Designed and Assembled
in the USA.
A07107
Base Series Programmable Thermostat
SETTING TIME AND DAY
At Power Up
settings to the programmed comfort schedule. Pressing
HOLD/END will not alter your programmed comfort schedule.
Programming A Weekly Comfort Schedule:
1. Press the PROGRAM button. The word PROGRAMMING
appears on the display and the words SET TIME flash on
the display. MoTuWeThFr or SaSu and the morning period
icons will appear on the display. The current mode (HEAT
or COOL) will also show. Use the DAY button to select
weekdays and the PROGRAM button to select MORNING.
Method 2 — Temporary Override
At the first press of the UP or DOWN button, the current
temperature setting will appear on the display. Pressing the UP or
DOWN button again will temporarily change the setpoint as
needed. At the next programmed time, the programmed comfort
schedule will resume.
2. Press the UP or DOWN button to set the start time for
MORNING ( 1) value in Table 1).
CHANGING BATTERIES
3. Press the TIME/TEMP button until COOL is on and SET
TEMP flashes on the display.
4. Press the UP or DOWN button to select the cooling temper-
ature setpoint ( 2) value in Table 1).
5. Press the TIME/TEMP button until HEAT is on and SET
TEMP flashes on the display.
6. Press the UP or DOWN buttons to select the heating tem-
perature setpoint ( 3) value in Table 1).
In some situations, two AA batteries are the power source for the
thermostat. If batteries are used with your equipment then they
should last about one year. As the batteries lose their power a
battery icon appears on the display. As the batteries get weaker, the
icon goes down to one black bar and then none. As the icon
becomes empty, you will begin to lose thermostat functions
because the batteries are losing their power. When the batteries are
completely dead, you won’t be able to use the thermostat.
When using batteries for power, we recommend you replace them
with two AA alkaline batteries. They are in a compartment under
the lid on top of the thermostat. You do not have to remove the
thermostat from the wall to replace the batteries. Simply open the
lid, lift out the batteries, and replace them like you would any other
battery operated device.
7. Press the PROGRAM button to advance to the next time
period. Enter time and temperature settings ( 4) through 12
in Table 1) for the periods DAY, EVE, and NIGHT by fol-
lowing items 2--6 above.
8. Press the DAY button to change between weekday and
weekend programming. To set the weekend schedule, repeat
items 2 through 7, entering values in 13) through 24) in
Table 1.
TROUBLESHOOTING
What if AUX HEAT appears on the display?
(Heat pump model only)
If auxiliary heat is on, you will see AUX HEAT indicator in the
display. When it is on this means the system has determined that
it’s too cold outside for your heat pump to heat the house without
help, so it’s getting help from the electric heaters. This happens
automatically.
9. Press END/HOLD to exit the programming mode.
Modifying Your Weekly Comfort Schedule
If you choose to change any of your weekly schedule, press
PROGRAM at any time. You will enter the programming schedule
at the present day, present mode, but always in the morning period.
You are ready to set the new starting time for the morning period.
One press of the TIME/TEMP button and you are ready to set the
new morning temperature. To set values for other periods, use the
PROGRAM button. To set values for other days, use the DAY
button. Press HOLD/END and you are finished.
NOTE: This indicator does not mean there is a problem with your
system.
What if E--Heat appears on the display?
If the heat pump is not working properly, you can manually turn
on the emergency heat for extra help in heating. You’ll know
there’s a problem if the house can’t seem to get warm when it’s
cold outside.
Overriding Your Comfort Schedule
There are two ways to override your comfort schedule.
Method 1 — Manual Operation
You want to avoid using emergency heat, though, because it’s the
most expensive option. And, of course, if you suspect a problem
with your heat pump, call your heating and cooling dealer
immediately.
By pressing the HOLD/END button to turn on the HOLD icon, the
thermostat will maintain the current temperature settings and
ignore the comfort schedule for an indefinite period of time. The
word HOLD will appear in the display. Press the HOLD/END
button a second time and the thermostat will return the temperature
Table 1 – Programming Table
ENERGY STAR
FACTORY DEFAULT VALUES
NEW COMFORT SCHEDULE
MoTuWe ThFr
TIME
SaSu
PERIOD
MORNING
DAY
TIME
COOL
HEAT
COOL
HEAT
COOL
14)
HEAT
15)
TIME
6:00
A.M.
78_F
26_C
68_F
20_C
1)
4)
2)
5)
8)
3)
6)
9)
13)
8:00
A.M.
85_F
29_C
60_F
16_C
16)
19)
22)
17)
20)
23)
18)
21)
24)
5:00
P. M .
78_F
26_C
68_F
20_C
EVE
7)
10:00
P. M .
82_F
28_C
60_F
16_C
NIGHT
10)
11)
12)
2
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CARRIER CORPORATION
Limited Warranty for Thermostats, User Interfaces, Zoning and Related Accessories
FOR WARRANTY SERVICE OR REPAIR:
Contact the installer or a Carrier dealer. You may find the installer’s name on the equipment or in your Owner’s Packet. You can also find a
For help, contact: Carrier Corporation, Consumer Relations, P.O. Box 4808, Syracuse, New York 13221 Phone: 1--800--227--7437
Model No./Serial No._____________________________________ Series (Infinity, Performance, Comfort, Base,) __________________
Date of Installation ______________________________________ Installed by ____________________________________________
Name of Owner _________________________________________ Address of Installation ___________________________________
Carrier Corporation (hereinafter “Company”) warrants this product against failure due to defect in materials or workmanship under normal
use and maintenance as follows. All warranty periods begin on the date of original installation. If a part fails due to defect during the
applicable warranty period Company will provide a new or remanufactured part, at Company’s option, to replace the failed defective part at
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CARRIER CORPORATION
WARRANTY CONDITIONS:
1. To obtain the longer warranty periods as shown in the table under original owner, for the original purchaser, the product must be
properly registered at www.carrier.com within ninety (90) days of original installation. In jurisdictions where warranty terms condi-
tioned on registration are prohibited by law, registration is not required and the longer warranty period shown will be apply.
2. Where a product is installed in a newly constructed home, the date of installation is the date the homeowner purchased the home from
the builder.
3. If the date of original installation cannot be verified, then the warranty period begins ninety (90) days from the date of product manu-
facture (as indicated by the model and serial number). Proof of purchase may be required at time of service.
4. The remainder of the first five years of warranty is freely transferable without registration. To obtain a transfer of the longer warranty
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