Honeywell TB7220 Thermostat User Manual

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TB7220 COMMERCIALPRO™  
Programmable Thermostat  
PRODUCT DATA  
The TB7220 provides temperature control for gas, oil, electric  
and heat pumps for up to 2 heat, 2 cool systems.  
FEATURES  
•
Large, clear display with backlight shows the current  
and set temperature and time—even in the dark.  
•
•
Menu-driven programming make setup effortless.  
Beautiful ergonomic design is smart and sophisticated  
to match your customers’ lifestyle.  
•
•
•
•
•
•
Real-time clock keeps time during power failures and  
automatically updates to daylight savings.  
“Saving Changes” notification lets you know when the  
schedule changes have been saved.  
Change reminders let you know when to replace the  
batteries.  
APPLICATION  
Holiday Override options allow you to override the  
program schedule, as desired.  
The TB7220 COMMERCIALPRO™ 7000 Programmable  
Thermostat is an effortless, seven-day programmable  
thermostat that provides universal system compatibility,  
precise comfort control and is easy-to-program.  
Speedy same-schedule programming—no need to  
copy multiple days.  
Armchair programming allows you to remove the  
Contents  
Application.........................................................................  
Specifications ....................................................................  
Ordering Information .........................................................  
Installation .........................................................................  
Wiring ................................................................................  
1
2
2
4
5
Installer Setup ................................................................... 12  
Operation........................................................................... 17  
Troubleshooting (Table 11)................................................ 22  
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TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT  
Table 3. Energy-saving Default Program Settings.  
Setpoints  
SPECIFICATIONS  
Schedule  
Period  
Thermostat Description: See Table 1.  
Time  
8:00am  
10:00pm  
—
Heat  
70°F (21°C)  
55°F (10°C)  
—
Cool  
75°F (24°C)  
85°F (29.5°C)  
—
Occ1  
Electrical Ratings: See Table 2.  
Unocc1  
Occ2  
Temperature:  
Ratings:  
Unocc2  
—
—
—
Operating Ambient:  
TB7220: 0°F to 120°F (-18°C to 49°C).  
C7089U, C7189U: 5% to 95%.  
Shipping: -30 °F to 150 °F (-34.4°C to 65.6°C).  
Display Accuracy: ±1°F (±0.5°C).  
Setpoint:  
Cycle Rates (at 50% Load):  
Heating: Selectable 1 - 12 cycles per hour.  
Cooling: Selectable 1 - 6 cycles per hour.  
Range:  
Interstage Differential:  
Heating: 40°F to 90°F (4°C to 32°C).  
Cooling: 50°F to 99°F (10°C to 37°C).  
Default Settings: See Table 3.  
Droopless control. Once the first stage is running at 90% load,  
the thermostat energizes the second stage.  
Cool Indication: Displays “Cool On” when Cool is activated.  
Heat Indication: Displays “Heat On” when Heat is activated.  
Humidity Ratings (RH, non-condensing):  
TB7220 Thermostat: 5% to 90%.  
C7089U, C7189U: 5% to 95%.  
Auxiliary Heat Indication: Displays “Aux. Heat On” when  
Table 1. Thermostat Description.  
Auxiliary Heat is activated.  
Feature  
Powering  
methods  
Description  
Clock Accuracy: ±1 minute per month.  
•
•
•
Battery only  
24 Vac only  
Finish:  
24 Vac with battery backup  
TB7000: Premier White® color.  
C7189U Wall Mount Remote Indoor Sensor: Premier White®  
System types  
•
•
Gas or electric heat with air conditioning  
Warm air, hot water, high-efficiency  
furnaces, and heat pumps  
Heat only  
Heat only with fan  
Cool only  
color.  
(
2
up to  
heat/2 cool)  
T7770A Wall Mount Remote Indoor Sensor: Premier White®  
color.  
•
•
•
Batteries:  
Two replaceable AA alkaline batteries: Power thermostat when  
Changeover  
Manual or Auto changeover selectable  
24 Vac common is not used.  
Non-replaceable lithium battery with ten-year life: Under nor-  
mal conditions holds calendar and time settings.  
System setting Heat-Off-Cool-Auto  
Fan setting  
Auto-On  
NOTE: Alkaline batteries keep calendar and time if lithium  
battery is no longer functional.  
Table 2. Electrical Ratings  
Voltage  
Running Current  
Resistance Characteristics of Remote Sensors:  
C7089U Outdoor Sensor: 10K ohm NTC.  
C7189U Remote Indoor Sensor: 10K ohm NTC.  
C7772 Flush-Mount Remote Indoor Sensor: 20K ohm NTC.  
T7770A1006 Wall-Mount Remote Indoor Sensor: 20K ohm  
NTC.  
Terminal  
(50/60 Hz)  
20 - 30 Vac  
W (Heating)  
Y (Cooling)  
0.02 - 1.0A  
0.02 - 1.0A  
0.02 - 0.60A  
0.02 - 1.0A  
20 - 30 Vac  
20 - 30 Vac  
20 - 30 Vac  
G (Fan)  
A (Economizer/TOD)  
T7770A3002 Wall-Mount Remote Indoor Sensor: 10K ohm  
NTC.  
ORDERING INFORMATION  
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the  
TRADELINE® Catalog or price sheets for complete ordering number.  
If you have additional questions, need further information, or would like to comment on our products or services, please write or  
phone:  
1
.
Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).  
Honeywell Customer Care  
2.  
1
885 Douglas Drive North  
Minneapolis, Minnesota 55422-4386  
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.  
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,  
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.  
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TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT  
Calibration (TB7220, C7089U, C7189U, T7770A):  
No field calibration required.  
Mounting Means:  
TB7220: Direct wall-mount using mounting screws and  
anchors provided. Fits standard vertical or horizontal  
1
LEVEL  
LEVEL  
2
in. x 4 in. junction box.  
C7089U: Mounts outside of living space with mounting clip and  
screws provided.  
6-7/8 IN. (175 MM)  
C7189U, T7770A: Mounts directly on the wall using mounting  
screws and anchors provided. Fits a vertical 2 x 4 in. junc-  
tion box.  
BRACKET  
UP  
5
IN.  
(
127 MM)  
Cover Plate:  
2
2
32003796-001 Cover Plate is used to cover marks left on the  
wall by the old thermostat.  
Dimensions:  
MEDIUM COVER PLATE  
-5/16 IN. (211 MM)  
TB7220 Thermostat: See Fig. 1.  
C7089U Outdoor Sensor Mounting Clip: See Fig. 3.  
C7189U Remote Indoor Sensor: see Fig. 5.  
T7770A: See Fig. 4.  
8
32003796-001 Cover Plate: See Fig. 2.  
UP  
6
IN.  
2
(
152 MM)  
2
LARGE COVER PLATE  
THERMOSTAT  
AND WALLPLATE  
1
BRACKET FOR MOUNTING ON JUNCTION BOX NOT INCLUDED  
WITH COVER PLATE  
.
2
USE BOTTOM MOUNTING HOLES.  
M13669  
6
(152)  
1
-3/8  
35)  
(
Fig. 2. 32003796-001 Cover Plate dimensions in in. (mm).  
1
-1/2 (38)  
3-3/4  
(95)  
M13668  
Fig. 1. TB7220 Thermostat  
dimensions in in. (mm).  
M4488  
Fig. 3. C7089U Outdoor Sensor Mounting Clip  
dimensions in in. (mm).  
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TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT  
4.  
After installation is complete, check out product  
operation as provided in these instructions.  
KNOCKOUTS FOR  
EUROPEAN APPLICATIONS  
CAUTION  
Electrical Shock or Equipment Damage Hazard.  
Can shock individuals or short equipment  
circuitry.  
2-3/8  
(60)  
STANDARD  
UTILITY  
CONDUIT  
BOX (2 X 4)  
MOUNTING  
HOLES  
Disconnect power supply before installation.  
5-1/16  
(128)  
Select Thermostat Location  
Select a location for the thermostat about 5 ft (1.5m) above the  
floor in an area with good air circulation at average  
temperature. See Fig. 6.  
2
-3/8 (60)  
1
5/16  
23)  
(
3
-3/16 (80)  
M22936  
Fig. 4. T7770A dimensions in in. (mm).  
NO  
YES  
NO  
NO  
5 FEET  
1.5 METERS]  
[
4
-5/8  
117)  
(
M22258  
Fig. 6. Select thermostat location.  
Do not install the thermostat where it can be affected by:  
—
Drafts or dead spots behind doors and in corners.  
1
(
-1/8  
29)  
2
-3/4 (70)  
— Hot or cold air from ducts.  
—
—
—
Radiant heat from sun or appliances.  
Concealed pipes and chimneys.  
Unheated (uncooled) areas such as an outside wall behind  
the thermostat.  
M4465  
FRONT VIEW  
SIDE VIEW  
Fig. 5. C7189U Indoor Sensor dimensions in in. (mm).  
Separate Wallplate from Thermostat  
MERCURY NOTICE  
1.  
Separate the wallplate from the thermostat. See Fig. 7.  
If this control is replacing a control that contains  
mercury in a sealed tube, do not place your old  
control in the trash. Dispose of properly.  
WALLPLATE  
WIRE HOLE  
Contact your local waste management authority  
for instructions regarding recycling and the proper  
disposal of an old control.  
INSTALLATION  
When Installing this Product...  
1.  
Read these instructions carefully. Failure to follow them  
could damage the product or cause a  
hazardous condition.  
THERMOSTAT  
M22267  
2
.
.
Check ratings given in instructions and on the product to  
ensure the product is suitable for your application.  
Installer must be a trained, experienced service  
technician.  
Fig. 7. Separate wallplate from thermostat.  
3
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TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT  
NOTES:  
Install Wallplate (See Fig. 8)  
—
Refer to Table 5 for terminal designation  
descriptions.  
See Fig. 12 through 21 for wiring diagrams for  
Mount the thermostat horizontally on the wall:  
1.  
.
Pull the wires through the wire hole on the wallplate.  
Position the wallplate on the wall with the arrow pointing  
up. Level the wallplate for appearance only.  
Use a pencil to mark the mounting holes.  
Remove the wallplate from the wall and drill two 3/16 in.  
holes in the wall (if drywall) as marked. For firmer  
material such as plaster, drill two 7/32 in. holes. Tap the  
wall anchors (provided) into the drilled holes until flush  
with the wall.  
—
2
specific equipment applications.  
3
4
.
.
1.  
Select set of terminal identifications that correspond to  
your system type (conventional or heat pump). See Fig. 9.  
HEAT PUMP  
CONVENTIONAL  
5
.
.
Pull the wires through the wire hole on the wallplate and  
position the wallplate over the wall anchors.  
Insert the mounting screws into the wall anchors and  
tighten.  
6
C
C
G
Y
W2  
Y2  
A
W1  
Y2  
G
Y
O/B  
RC  
R
W
RC  
R
S1  
S2  
S1  
S2  
WALL  
1
WIRES THROUGH WALL  
AND WIRE SLOT  
SCREW  
WALL  
ANCHORS (2)  
TERMINALS  
M13663  
1
FACTORY INSTALLED JUMPER.  
Fig. 9. Terminal identifications for system type.  
2
3
.
.
Loosen screw terminals used for the application.  
Insert the wires into the terminal block and tighten each  
screw terminal. See Fig. 10.  
MOUNTING  
HOLES  
M13665  
MOUNTING  
SCREWS (2)  
Fig. 8. Install wallplate.  
WIRING  
M13666  
CAUTION  
WIRE HOLE  
Electrical Shock Hazard.  
Can cause electrical shock or equipment damage.  
Disconnect power supply before connecting wiring.  
Fig. 10. Insert wires into terminal block.  
4
.
.
Push excess wire back into the wall opening and restrict  
wires to the shaded area. See Fig. 11.  
Plug the wall opening with nonflammable insulation to  
IMPORTANT  
—
All wiring must agree with applicable codes,  
ordinances and regulations.  
5
prevent drafts from affecting the thermostat.  
—
Use 18 gauge thermostat wire. Shielded cable is not  
required.  
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Table 5. Terminal Designation Descriptions.  
Terminal  
WALLPLATE  
WIRE  
Designation  
Description  
Rc  
Power for cooling—connect to secondary side  
(see Note 1) of cooling system transformer.  
R
Power for heating—connect to secondary side  
(see Note 1) of heating system transformer.  
Y
C
Compressor output.  
Common wire from secondary side of cooling  
(see Note 2) system transformer.  
W
Heat relay.  
G
Fan relay.  
W2  
Y2  
O/B  
Second stage heat relay.  
Second stage cooling.  
Changeover valve for heat pumps.  
WALL OPENING  
SHADED AREA  
M22266  
(see Note 3)  
A
(
Economizer/Time-Of-Day (TOD) output—  
see Note 4) powered via R terminal.  
Optional outdoor or indoor remote sensor.  
Optional outdoor or indoor remote sensor.  
Fig. 11. Restrict wires to shaded area of wire hole.  
Table 4. Wiring Diagrams.  
S1  
(See Note 5)  
Wallplate Terminal Wiring Diagram  
S2  
System Type  
Identifications  
Figure  
(See Note 5)  
Standard Heat/Cool Conventional  
12, 13  
Heat Only  
Cool only  
Conventional  
Conventional  
14  
NOTES:  
1.  
When used in a single-transformer system, leave  
metal jumper wire in place between Rc and R. If  
used on a two-transformer system, remove metal  
jumper wire between Rc and R.  
15  
Standard Multistage Conventional  
up to 2 Heat/2 Cool  
16, 17  
Heat Pump  
No Auxiliary Heat)  
Heat Pump  
18, 19  
20, 21  
26, 27, 28  
29  
2.  
Common wire is optional when thermostat is used  
with batteries. When using separate transformers  
for heating and cooling, the common must come  
from the cooling transformer.  
If thermostat is configured for a heat pump in the  
Installer Setup, configure changeover valve for  
cool (O-factory setting) or heat (B).  
Reference economizer literature for wiring details.  
When set for economizer operation, the A terminal  
provides the occupancy signal. (Power indicates  
occupied.)  
(
Heat Pump  
with Auxiliary Heat)  
Heat Pump  
(
3
.
.
Multiple T7770A  
Sensors  
—
—
4
Multiple C7189U  
Sensors  
5.  
Sensor wires must have a cable separate from the  
thermostat control cable.  
Terminal “A” Wiring Details for Economizers  
—
—
—
Wire the A terminal to the W7212 “N” terminal, or the  
W7459 “TR” terminal.  
When using dual transformers at the thermostat, the cooling  
transformer must power the economizer.  
The A signal is powered from the R terminal and energizes  
the economizer to signal occupied status and drive the  
damper to the set minimum position.  
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TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT  
Conventional System Wiring  
1
3
3
C
G
Y
W
RC  
R
W2  
Y2  
A
S1  
S2  
C
G
Y
W
RC  
R
W2  
Y2  
A
S1  
S2  
1
L1  
L1  
HOT)  
(HOT)  
(
L2  
24 VAC  
2
4 VAC  
L2  
2
2
HEAT RELAY  
OUTDOOR/INDOOR  
TEMPERATURE  
SENSOR  
HEAT RELAY  
COMPRESSOR CONTACTOR  
FAN RELAY  
OUTDOOR/INDOOR  
TEMPERATURE  
SENSOR  
ECONOMIZER  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD  
PROTECTION AS REQUIRED.  
ECONOMIZER  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD  
PROTECTION AS REQUIRED.  
2
3
FACTORY INSTALLED JUMPER.  
WHEN USING BATTERIES, THE 24V COMMON CONNECTION IS  
OPTIONAL.  
2
3
FACTORY INSTALLED JUMPER.  
M23013  
WHEN USING BATTERIES, THE 24V COMMON CONNECTION  
IS OPTIONAL.  
M23011  
Fig. 14. Typical hookup of heat-only system.  
Fig. 12. Typical wiring of single transformer 1H/1C system.  
1
3
C
G
Y
W
RC  
R
W2  
Y2  
A
S1  
S2  
L1  
(
HOT)  
3
1
C
G
Y
W
RC  
R
W2  
Y2  
A
S1  
S2  
L1  
HOT)  
(
24 VAC  
L2  
2
4 VAC  
2
L2  
COOLING  
2
TRANSFORMER  
COMPRESSOR CONTACTOR  
FAN RELAY  
OUTDOOR/INDOOR  
TEMPERATURE  
SENSOR  
FAN RELAY  
COMPRESSOR CONTACTOR  
OUTDOOR/INDOOR  
TEMPERATURE  
SENSOR  
1
L1  
ECONOMIZER  
(
HOT)  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD  
PROTECTION AS REQUIRED.  
2
4 VAC  
ECONOMIZER  
HEAT RELAY  
L2  
2
3
FACTORY INSTALLED JUMPER.  
HEATING  
TRANSFORMER  
WHEN USING BATTERIES, THE 24V COMMON CONNECTION  
IS OPTIONAL.  
M23015  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD  
PROTECTION AS REQUIRED.  
Fig. 15. Typical hookup of cool-only system.  
2
3
REMOVE FACTORY INSTALLED JUMPER.  
WHEN USING BATTERIES, THE 24V COMMON CONNECTION  
IS OPTIONAL. WHEN USED, THE COMMON MUST CONNECT  
TO THE COOLING TRANSFORMER SECONDARY.  
M23012  
Fig. 13. Typical hookup of dual transformer 1H/1C system.  
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1
3
3
C
G
Y
W
RC  
R
W2  
Y2  
A
S1  
S2  
C
G
Y
W
RC  
R
W2  
Y2  
A
S1  
S2  
1
L1  
(
HOT)  
L1  
(
HOT)  
2
4 VAC  
2
4 VAC  
L2  
L2  
2
COOLING  
2
TRANSFORMER  
OUTDOOR/INDOOR  
TEMPERATURE  
SENSOR  
FAN RELAY  
OUTDOOR/INDOOR  
TEMPERATURE  
SENSOR  
COOL RELAY 1 COOL RELAY 2  
1
COOL RELAY 1 COOL RELAY 2  
HEAT RELAY 1  
4 VAC  
FAN RELAY  
HEAT RELAY 2  
ECONOMIZER  
L1  
(
HOT)  
HEAT RELAY 2  
ECONOMIZER  
HEAT RELAY 1  
2
L2  
HEATING  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND  
OVERLOAD PROTECTION AS REQUIRED.  
TRANSFORMER  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND  
OVERLOAD PROTECTION AS REQUIRED.  
2
3
FACTORY INSTALLED JUMPER.  
WHEN USING BATTERIES, THE 24V COMMON CONNECTION  
IS OPTIONAL.  
M23016  
2
3
REMOVE FACTORY INSTALLED JUMPER.  
WHEN USING BATTERIES, THE 24V COMMON CONNECTION  
IS OPTIONAL. WHEN USED, THE COMMON MUST CONNECT  
TO THE COOLING TRANSFORMER SECONDARY.  
Fig. 16. Typical hookup of single transformer multistage  
system (up to 2H/2C).  
M23017  
Fig. 17. Typical hookup of dual transformer multistage  
system (up to 2H/2C).  
Heat Pump System Wiring  
L1  
L1  
(
HOT)  
(HOT)  
3
3
2
4 VAC  
C
G
W1  
Y2  
A
24 VAC  
C
G
W1  
Y2  
A
L2  
L2  
1
Y
1
Y
4
O/B  
RC  
R
S1  
S2  
4
O/B  
RC  
R
S1  
S2  
2
2
CHANGEOVER VALVE  
OUTDOOR/INDOOR  
TEMPERATURE  
FAN RELAY  
OUTDOOR/INDOOR  
TEMPERATURE  
SENSOR  
COMPRESSOR CONTACTOR  
FAN RELAY  
5
5
SENSOR  
CHANGEOVER VALVE  
ECONOMIZER  
COMPRESSOR 1  
COMPRESSOR 2  
ECONOMIZER  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD  
PROTECTION AS REQUIRED.  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD  
PROTECTION AS REQUIRED.  
2
3
FACTORY INSTALLED JUMPER.  
2
3
FACTORY INSTALLED JUMPER.  
WHEN USING BATTERIES, THE 24V COMMON CONNECTION  
IS OPTIONAL.  
WHEN USING BATTERIES, THE 24V COMMON CONNECTION  
IS OPTIONAL.  
4
5
"O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B"  
IN THE INSTALLER SETUP.  
4
5
"O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B"  
IN THE INSTALLER SETUP.  
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR.  
WIRES MUST HAVE A CABLE SEPARATE FROM THE  
THERMOSTAT CABLE.  
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR.  
WIRES MUST HAVE A CABLE SEPARATE FROM THE  
THERMOSTAT CABLE.  
M23018  
M23019  
Fig. 18. Typical hookup of single-stage heat pump with no  
auxiliary heat (1H/1C).  
Fig. 19. Typical hookup of multistage heat pump with no  
auxiliary heat (2H/2C).  
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TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT  
POWER THE THERMOSTAT  
L1  
(
HOT)  
You can choose from three methods to power the thermostat:  
3
2
4 VAC  
C
G
W1  
Y2  
A
•
•
•
Batteries only (AAA alkaline).  
24 Vac direct connection only.  
24 Vac direct connection with battery backup (AAA alkaline).  
L2  
1
Y
4
O/B  
RC  
R
S1  
S2  
2
Wiring 24 Vac Common  
•
Single-Transformer System—Connect the common side of  
the transformer to the C screw terminal of the thermostat  
wallplate. Leave the metal jumper wire in place between Rc  
and R.  
CHANGEOVER VALVE  
OUTDOOR/INDOOR  
TEMPERATURE  
COMPRESSOR CONTACTOR  
FAN RELAY  
5
SENSOR  
•
Two-Transformer System—Connect the common side of  
the cooling transformer to the C screw terminal of the  
thermostat wallplate. Remove the metal jumper wire  
between Rc and R.  
AUXILIARY HEAT RELAY  
ECONOMIZER  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD  
PROTECTION AS REQUIRED.  
2
3
FACTORY INSTALLED JUMPER.  
Installing Batteries  
WHEN USING BATTERIES, THE 24V COMMON CONNECTION  
IS OPTIONAL.  
1. Install two AA alkaline batteries on the back of the ther-  
mostat as marked. See Fig. 22.  
4
5
"O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B"  
IN THE INSTALLER SETUP.  
BATTERIES (2)  
BATTERY HOLDER  
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR.  
WIRES MUST HAVE A CABLE SEPARATE FROM THE  
THERMOSTAT CABLE.  
M23020  
Fig. 20. Typical hookup of single-stage heat pump with  
auxiliary heat (2H/1C).  
L1  
(
HOT)  
3
2
4 VAC  
C
G
W1  
Y2  
A
L2  
1
Y
M22259  
4
O/B  
RC  
R
S1  
S2  
BACK OF THERMOSTAT  
2
Fig. 22. Installing batteries.  
Locate and remove tab labeled Remove. See Fig. 23.  
CHANGEOVER VALVE  
COMPRESSOR 1  
FAN RELAY  
OUTDOOR/INDOOR  
TEMPERATURE  
2.  
5
SENSOR  
IMPORTANT  
This tab must be removed in order to set the real-time  
clock.  
AUXILIARY HEAT RELAY  
COMPRESSOR 2  
ECONOMIZER  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD  
PROTECTION AS REQUIRED.  
REMOVE  
TAB  
2
3
FACTORY INSTALLED JUMPER.  
WHEN USING BATTERIES, THE 24V COMMON CONNECTION  
IS OPTIONAL.  
ITON  
4
5
"O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B"  
IN THE INSTALLER SETUP.  
LA  
OMEVDUNRIG  
NIST  
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR.  
WIRES MUST HAVE A CABLE SEPARATE FROM THE  
THERMOSTAT CABLE.  
M23021  
Fig. 21. Typical hookup of multistage heat pump  
with auxiliary heat (3H/2C).  
ITON  
AL  
M
V
 D
  I
  G
INST  
M22260  
Fig. 23. Remove tab labeled REMOVE from thermostat  
back.  
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TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT  
Locate and Mount C7089U Outdoor  
Wire C7089U Outdoor Sensor  
Temperature Sensor (Optional)  
Mount the sensor where (see Fig. 24):  
•
•
•
•
•
cannot tamper with settings.  
there is good air circulation.  
it can measure true outdoor ambient temperature.  
surface is flat.  
wire distance between C7089U and thermostat is less than  
CAUTION  
Electrical Interference (Noise) Hazard.  
Can cause erratic system operation.  
Keep wiring at least one foot away from large inductive  
loads such as motors, line starters, lighting ballasts and  
large power distribution panels.  
200 feet.  
Use shielded cable to reduce interference when  
rerouting is not possible.  
Do not mount the sensor:  
•
•
in direct sunlight.  
where hot or cold air blows on the sensor. Discharge line  
from an outdoor compressor unit, vent or fan causes  
inaccurate temperature readings.  
1. Wire C7089U Outdoor Sensor to S1and S2 terminals on  
the thermostat. If leadwire provided is not long enough  
(60 in.), run a cable to a hole at C7089U location.  
a. Using color-coded, 18-gauge thermostat wire is  
recommended. For example of general wiring of  
C7089U, see Fig. 25.  
•
where snow, ice or debris can cover it.  
Use the following steps to mount the sensor:  
1
2
.
.
Remove the sensor from the mounting clip.  
Mark the area on the location selected for mounting the  
sensor mounting clip.  
2. Mount C7089U in its mounting clip.  
3. Plug wiring hole using nonhardening caulk or putty.  
3.  
Mount the clip.  
1
WIRING HOLE  
C7089  
THROUGH  
2
STRUCTURE  
1
2
USE APPROPRIATE MOUNTING MEANS FOR THE  
TYPE OF STRUCTURE.  
PLUG WIRING HOLE WITH NON-HARDENING CAULK  
OR PUTTY.  
M13664  
Fig. 25. Wire C7089U Outdoor Sensor to the thermostat.  
Locate and Mount T7770A or C7189U Remote  
Indoor Temperature Sensor (Optional)  
Locate and mount the sensor in the same fashion as the  
thermostat. See the Select Thermostat Location section.  
Consider the following as well:  
1.  
Be sure wire distance between sensor and thermostat is  
less than 200 feet.  
M7514  
2.  
Mark the area on the wall selected for mounting the  
sensor or junction box.  
Fig. 24. Typical locations for C7089U Outdoor Sensor.  
3.  
4.  
5.  
Sensor wire must be separate from the thermostat cable.  
Run wire cable to a hole at the selected wall location.  
Pull approximately three inches of wire through the  
opening.  
NOTE: Color-coded, 18-gauge wire is recommended.  
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TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT  
Wire Indoor Sensor  
SUBBASE  
S1  
T7770A1006  
S2  
CAUTION  
Can cause erratic system operation.  
Electrical Interference (Noise) Hazard.  
T
T
T4  
T3  
Keep wiring at least one foot away from large inductive  
loads such as motors, line starters, lighting ballasts and  
large power distribution panels.  
1
T7770A3002  
1
.
Check Installer Setup Number (ISU) 340 to ensure it is  
set to the desired value. (See Table 6.)  
Wire sensor to S1and S2 thermostat terminals.  
Push excess wire back into the hole. Plug the hole using  
nonhardening caulk, putty or insulation to prevent drafts  
from affecting performance.  
T7770A1006  
T
T
2.  
.
3
4
5
.
.
Remove sensor cover.  
Mount sensor to the wall or junction box using the  
1
THE T7770A3002 IS A 10K OHM SENSOR.  
M22934  
screws and anchors provided.  
6
.
.
Level the sensor for appearance only. Device functions  
correctly even when not level.  
Install sensor cover.  
Fig. 28. Wiring two T7770A1006 (20K ohm) Sensors and  
one T7770A3002 (10K ohm) sensor to provide a  
temperature averaging network  
7
Sensor Wiring for Temperature Averaging  
SUBBASE  
W2  
Y2  
A
S1  
S2  
S1  
S2  
T7770A  
T
T7770A  
T
1
C7189  
C7189  
C7189  
C7189  
T
T
T7770A  
T
T7770A  
T
T
T
1
WIRES MUST HAVE A CABLE SEPARATE FROM  
THE THERMOSTAT CABLE.  
M13667  
Fig. 29. Wiring four C7189U (10K ohm) Sensors to provide  
a temperature averaging network.  
M22831  
Fig. 26. Wiring four T7770A1006 (20K ohm) Sensors.  
SET CALENDAR AND TIME  
This thermostat is designed to, under normal use,  
automatically keep current time and day in memory for up to  
ten years once the calendar is set. There are two ways to set  
the calendar for this thermostat:  
SUBBASE  
S1  
S2  
Setting Calendar Once Functioning  
T4  
T3  
T4  
T3  
See steps 1 through 4, in the Advanced Settings section, to set  
year, month and day.  
1
1
Setting Calendar When First Powered  
T7770A3002  
T7770A3002  
When first powered, the thermostat proceeds through a  
sequence of screens to set the calendar.  
1
THE T7770A3002 IS A 10K OHM SENSOR.  
M22933  
—
When first powered, the thermostat proceeds through a  
sequence of screens to set the calendar. See Fig. 30.  
Fig. 27. Wiring two T7770A3002 (10K ohm) Sensors to  
provide a temperature averaging network.  
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3.  
The Setup Number displays to the lower-left area of the  
screen. It is a four-digit code beginning with zero. The  
current setting is displayed to the right.  
MONTH  
YEAR  
DAY  
UP AND DOWN  
BUTTONS  
CHANGES  
MONTH,  
NOTE: To cycle through the Setup Numbers, press the up or  
down arrow.  
DAY AND  
YEAR  
Tue  
DeSelect Day FanUseEdit  
System & Fan  
Schedule  
View  
Clock & More  
DONE  
BUTTON  
ADVANCES  
TO TIME  
Tue  
Set To  
SETTING  
SCREEN  
System Auto Fan Auto  
Heat Off Cool  
GO BACK BUTTON  
GOES BACK TO LAST SETTING  
NEXT BUTTON  
ADVANCE TO NEXT SETTING  
System & Fan  
Schedule  
Clock & More  
M22302  
Fig. 30. Setting calendar when thermostat is first powered.  
M22304  
UP AND DOWN BUTTONS  
CHANGES TIME  
Fig. 32. Entering Installer Setup.  
User Settings (Simple Set)  
Access to the user settings is obtained as follows:  
1.  
From the main screen, press SYSTEM. Five blank touch  
keys show on the bottom of the screen between DONE  
and CANCEL.  
2
.
.
Press and hold the center blank key approximately five  
seconds.  
The Setup Number displays to the lower-left area of the  
screen. It is a four-digit code beginning with zero. The  
current setting is displayed to the right.  
View  
Clock & More  
3
NOTE: To cycle through the Setup Numbers, press the up or  
down arrow.  
DONE BUTTON  
ADVANCES TO HOME SCREEN  
M22303  
Fig. 31. Setting time when thermostat is first powered.  
INSTALLER SETUP  
System Auto Fan Auto  
Em Heat Off Cool  
Advanced Settings  
FanUseEdit  
System & Fan  
CancelDone  
The thermostat has advanced settings to match the HVAC  
system. These settings can be adjusted to match specific  
needs.  
There are two different groups of settings:  
—
—
A complete set designed for the installation use.  
A simple set to limit accessibility for typical users.  
M22305  
Fig. 33. Entering User Setup.  
Installer Settings (Complete Set)  
Access to the installer settings is obtained as follows:  
1.  
From the main screen, press SYSTEM. Five blank touch  
keys show on the bottom of the screen between DONE  
and CANCEL.  
2.  
Press and hold the two blank keys on either side of the  
center blank key for approximately five seconds. (See  
Fig. 32.)  
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INSTALLER SETUP NUMBERS (ISU), SETTINGS, AND TESTS (TABLE 6)  
Use the Installer System Test to test the heating, cooling and  
fan. Refer to the latter portion of Table 6.  
IMPORTANT  
Use Installer System Test to test heating, cooling and  
fan. The setting chosen for System Type (ISU 0170)  
can prevent some System Test Numbers from  
appearing.  
CAUTION  
Equipment Damage Hazard.  
Minimum compressor off time is bypassed during  
Installer System Test  
NOTE: Unless otherwise noted, setup items are accessible  
through only the Installer setup and not the User  
setup.  
Avoid cycling compressor quickly.  
Table 6. Installer Setup Menu.  
Installer  
Setup  
Number  
Installer Setup  
Name  
Default  
Setting  
All Settings  
20—20xx  
1—21xx  
Notes  
120a  
Date (Year Upper)  
20  
Available year range: 2001 - 2178  
0
2
130a  
140a  
150a  
160a  
Date (Year Lower)  
Date (Month)  
04  
6
00-99  
1-12  
Available year range: 2001 - 2178  
0
0
0
0
Date (Day)  
15  
4
1-31 (Month Dependent)  
0—Non-Programmable  
Schedule Options  
4—Programmable  
0170  
System Selection  
8
1—1H/1C Conv  
2
3
4
6
7
8
9
1
—1H/1C HP  
—1H w/o fan  
—1H with fan  
—1C  
—2H/1C HP  
—2H/2C Conv  
—2H/1C Conv  
0—1H/2C Conv  
1
1—2H/2C HP  
12—3H/2C HP  
0175  
0180  
0185  
TOD/Economizer  
output  
0
0
0
0—Unused  
1—TOD  
Economizer energizes A during a call for cool.  
TOD energizes A during Occupied period, and deenergizes  
A during Unoccupied.  
2
—Economizer  
0—Fossil  
—Electric  
Heat Fan Operation  
Only shown for conventional system with heat stages and  
fan capability selected. If heat pump is selected, fan  
defaults to electric.  
1
Pre-occupancy  
Purge Duration  
0—no duration  
1—one hour  
Shown only if system has fan and schedule programmable.  
Pre-occupancy purge enabled by nonzero duration (and  
sends economizer to minimum position).  
2—two hours  
3—three hours  
0
190  
220  
Reversing Valve O/B 0  
0—O (O/B On Cool)  
—B (O/B On Heat)  
Only shown with heat pump system selected.  
1
0
Cycles Per Hour  
CPH) for first stage  
3
1-6  
Only shown for system with cool stages. Selection in this  
stage changes default CPH of second stage cool.  
(
compressor  
0
230  
240  
CPH for second  
stage compressor  
3
5
1-6  
Only shown if two stages of cool selected.  
0
CPH for first stage  
conventional heat  
1-12  
Only shown if system is conventional with heat stages.  
Selection in this stage changes default CPH of second  
stage heat.  
0250  
CPH for second  
stage conventional  
heat  
5
1-12  
Only shown with at least two stages conventional heat or  
2H/1C heat pump selected.  
a
Setting available for modification in both the Installer and User setup modes.  
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Table 6. Installer Setup Menu. (Continued)  
Installer  
Setup  
Number  
Installer Setup  
Name  
Default  
Setting  
All Settings  
Notes  
0
260  
270  
280  
300  
310  
CPH for third Stage  
Heat  
9
1-12  
1-12  
Only shown if 3H/2C heat pump is selected.  
0
0
0
0
CPH for Auxiliary  
Heat  
9
Only shown if multi-stage heat pump is selected (heat  
pump with more heat than cool stages).  
Continuous  
Backlight  
0
0—No  
1—Yes  
Always shown. If AC power not present the option is  
overridden and normal backlight operation occurs.  
Changeover  
1
0—Manual  
—Auto  
Only shown if system has both heat and cool stages.  
1
Deadband  
3°F  
2 (1.5)—2°F (1.5°C)  
3 (2.0)—3°F (2.0°C)  
Only shown if Automatic Changeover Selected  
(2°C)  
4
5
6
7
8
9
(2.5)—4°F (2.5°C)  
(3.0)—5°F (3.0°C)  
(3.5)—6°F (3.5°C)  
(4.0)—7°F (4.0°C)  
(4.5)—8°F (4.5°C)  
(5.0)—9°F (5.0°C)  
320a  
Temperature  
Indication Scale  
0
1
0
0—°F  
1—°C  
0
330a  
Daylight Saving  
0—Disabled  
0
1—Enabled (US)  
0340  
Remote  
0—None  
Averaging would not include on-board sensor. It is  
accomplished by series/parallel combinations.  
2 applies only to Heat Pump applications (allowing  
compressor lockout while displaying temperature).  
Temperature Sensor  
1—Outdoor for Display  
2—Outdoor for Control  
3—Remote 10K Indoor  
4—Remote 20K Indoor  
0350  
Heat Pump  
Compressor Lockout  
0
0—None  
15(-9.5)—15°F(-9.5°C)  
Only shown for heat pump systems with more heat stages  
than cool selected and remote sensor selection is outdoor  
for control.  
Must enforce a dead band between this and Auxiliary  
Lockout  
20(-6.5)—20°F(-6.5°C)  
25(-4.0)—25°F(-4.0°C)  
30(-1.0)—30°F(-1.0°C)  
35(1.5)—35°F(1.5°C)  
40(4.5)—40°F(4.5°C)  
45(7.0)—45°F(7.0°C)  
0
360  
535  
Heat Pump Auxiliary 0  
Lockout  
0—None  
40(4.5)—40°F(4.5°C)  
Only shown for heat pump systems with more heat stages  
than cool selected and remote sensor selection is outdoor  
for control.  
Must enforce a dead band between this and Heat Pump  
Compressor Lockout.  
45(7.0)—45°F(7.0°C)  
50(10.0)—50°F(10.0°C)  
55(13.0)—55°F(13.0°C)  
60(15.5)—60°F(15.5°C)  
0
Temporary Occupied 3  
Duration Limit  
0—no duration  
1—one hour  
0 means no limit  
2—two hours  
3—three hours  
4—four hours  
540a  
Number of Periods  
4
5
2—2 Periods  
—4 Periods  
Does not appear if Non-programmable is chosen.  
Applies to all days of the week. With 2 selected the “Cancel  
Period” option does not appear on the display.  
0
4
0580  
Minimum  
Compressor Off  
Time  
0—Off  
2—2 minutes  
3—3 minutes  
Only shown if system has cool stages.  
4
5
—4 minutes  
—5 minutes  
0
0
a
600  
Heat Temperature  
Range Stops  
90  
50  
40 to 90°F (4 to 32°C)  
Only shown if system has heat stages.  
Only shown if system has cool stages.  
610  
Cool Temperature  
Range Stops  
50 to 99°F (10 to 37°C)  
Setting available for modification in both the Installer and User setup modes.  
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Table 6. Installer Setup Menu. (Continued)  
Installer  
Setup  
Number  
Installer Setup  
Name  
Default  
Setting  
All Settings  
12—12 Hour  
4—24 Hour  
0—Off  
Notes  
640a  
650  
660  
670  
Clock Format  
12  
0
2
0
0
0
Extended Fan  
On time Heat  
0
Not displayed with fan set to fossil or with cool-only  
systems  
90—90 seconds  
Extended Fan  
On time Cool  
0
0—Off  
40—40 seconds  
Only shown if system has cool stages.  
Keypad Lockout  
0
0—Unlocked  
Unlocked: All functions accessible.  
1—Partial Lockout 1  
2—Partial Lockout 2  
3—Fully Locked  
Partial 1: Locks all but Holiday, Override, and Up/Down.  
Partial 2: Locks all but Holiday and Override.  
Full: Entire interface locked/non-functional.  
0680  
Temperature Control 2  
Heat  
1—Less Aggressive  
2—Standard  
Only shown if system has heat stages.  
Only integral gains affected. Affects control operation in all  
control regimes (not just recovery or setpoint change).  
More Aggressive stops signal prior to reaching the setpoint.  
3—More Aggressive  
(For use with oversized equipment.)  
0
685  
690  
Recovery Heat  
Ramp Rate  
5
0-20°F/hour  
Only shown if system has heat stages.  
0 disables ramped recovery (step setpoint change at period  
start time)  
0
Temperature Control 2  
Cool  
1—Less Aggressive  
2—Standard  
Only shown if system has cool stages.  
Only integral gains affected. Affects control operation in all  
control regimes (not just recovery or setpoint change).  
More Aggressive stops signal prior to reaching the setpoint.  
3—More Aggressive  
(For use with oversized equipment.)  
0
695  
700  
Recovery Cool  
Ramp Rate  
3
0-20°F/hour  
Only shown if system has cool stages.  
0 disables ramped recovery (step setpoint change at period  
start time)  
0
Temperature Display 0  
Offset  
-3 (-1.5)— -3°F (-1.5°C)  
-2 (-1.0)— -2°F (-1.0°C)  
This offset applies to both the control temperature and to  
the display temperature for indoor sensor (and remote  
indoor sensor)  
-1 (-0.5)— -1°F (-0.5°C)  
0
1
2
3
(0.0)—0°F (0.0°C)  
(0.5)—1°F (0.5°C)  
(1.0)— 2°F (1.0°C)  
(1.5)—3°F (1.5°C)  
0710  
Restore Factory  
Defaults  
0
0—No  
1—Yes  
Resets all Installer Setup parameters to default values and  
resets the schedule to the default energy-saving program.  
Retains only calendar settings and time.  
INSTALLER SYSTEM TEST ITEMS  
Test 1  
Installer Test  
Cool  
0
0—Off  
1—Cool Stage 1  
2—Cool Stage 2  
Test 2  
Test 3  
Installer Test  
Fan  
0
0
0—Off  
1—Fan On  
Installer Test  
Heat  
0—Off  
1—Heat Stage 1  
2
3
—Heat Stage 1 and 2  
—Heat Stage 1,2 and 3  
Test 4  
Installer Test  
Auxiliary Heat  
0
0
0—Auxiliary Heat Off  
1—Auxiliary Heat On  
Test 8  
Installer Test  
TOD/Economizer  
0—TOD/Economizer Off  
1—TOD/Economizer On  
a
Setting available for modification in both the Installer and User setup modes.  
NOTE: Press the Done button to exit the Installer System Test.  
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TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT  
MAIN SCREEN  
PROGRAMMING  
Table 7 shows default program settings.  
DOWN BUTTON  
LOWERS TEMPERATURE SETTING OR  
MAKES SELECTIONS IN OTHER SCREENS  
Table 7. Energy-saving Default Program Settings.  
Setpoints  
Schedule  
UP ARROW BUTTON  
RAISES TEMPERATURE SETTING OR  
MAKES SELECTIONS IN OTHER SCREENS  
Period  
Time  
8:00am  
10:00pm  
—
Heat  
70°F (21°C)  
55°F (10°C)  
—
Cool  
75°F (24°C)  
85°F (29.5°C)  
—
Occ1  
Unocc1  
Occ2  
Unocc2  
—
—
—
Set To  
System  
Fan Auto  
Fan Settings  
Auto: Fan runs only when heating/cooling system is on.  
See the Fan Schedule section for more information.  
On: Fan runs continuously.  
Cool  
System & Fan  
Schedule  
Clock & More  
System Settings  
Heat: Thermostat controls the heating system.  
Off: Both heating and cooling systems are off.  
Cool: Thermostat controls the cooling system.  
Auto: Thermostat automatically changes between heat and  
cool operation, depending on indoor temperature.  
SCHEDULE BUTTON  
SELECTS PROGRAMMING  
MODE  
CLOCK &  
SYSTEM & FAN BUTTON  
SELECTS FAN AUTO OR ON  
SELECTS HEAT, OFF, COOL  
AND EM HEAT  
MORE BUTTON  
SELECTS TIME AND  
FURNACE FILTER  
INFORMATION  
Programming Heating and Cooling Schedule  
M22316  
The thermostat can control up to four different schedule  
periods per day:  
Fig. 34. Main screen selections.  
OCC 1: Work arrival time. Period to keep space at a  
comfortable temperature.  
UNOCC1: Work exit time. Period to keep space at an  
energy-saving temperature.  
OCC 2: Second occupied period.  
SHOWS CURRENT  
DAY OF WEEK  
TEMPERATURE  
SETTING  
UNOCC2: Second unoccupied period.  
CURRENT  
TIME  
NOTE: Available schedule times are at 15-minute intervals.  
Editing Schedule  
1.  
2.  
3.  
Press MORE  
Mon  
Press SCHEDULE.  
Press EDIT.  
4. Press SELECT DAY to select the days you wish to  
Aux Heat On  
System Auto Fan Auto  
System & Fan  
Schedule  
schedule.  
Press NEXT when finished selecting days  
Clock & More  
5.  
NOTES:  
—
—
Multiple days can be selected.  
To skip over a day, press the Up or Down arrow  
keys.  
CURRENT  
SYSTEM SETTING  
INDICATES  
—
Checkmarks appear next to selected days. These  
are scheduled with identical times and tempera-  
tures.  
THERMOSTAT IS  
"
CALLING FOR  
COOL OR HEAT"  
CURRENT  
FAN SETTING  
M22317  
Fig. 35. Main screen display.  
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TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT  
OPERATION  
Setting Temperature Overrides  
There are three temperature override options:  
— Hold Temperature Until  
— Override, and  
Mon  
Tue  
Wed  
Thu  
Fri  
Sat  
Sun  
—
Holiday.  
Select Day  
Next  
Step Cancel  
HOLD TEMPERATURE UNTIL  
Holds the temperature temporarily until the time set by the  
user, or the next scheduled period time.  
1
.
Press the Up or Down arrow next to the temperature to  
adjust. The Hold Until time appears on the screen. The  
time defaults to the next scheduled period start time  
Press NEXT to adjust the time for the thermostat to  
resume schedule.  
2.  
M22332  
Fig. 36. Initial schedule edit screen.  
NOTE: The installer setup can limit the length of time  
for an override to 1, 2, 3, or 4 hours beyond the  
current time.  
6.  
OCCUPIED 1 flashes, denoting the period that is about  
to be edited.  
7
8
.
.
Press NEXT, and the start time for that period flashes.  
Change the start time by pressing the Up and Down  
arrow keys.  
3. Press DONE or wait 5 seconds.  
4. Press CANCEL or SCHEDULE to cancel “Hold Tempera-  
ture Until” and resume the schedule.  
9.  
Press NEXT to edit the heating and cooling setpoints.  
1
0. Continue to cycle through the remaining periods and  
OVERRIDE  
make changes by pressing the NEXT key.  
Changes temperature setting until the next period takes effect.  
For use during Unoccupied periods.  
1.  
Press OVERRIDE. The settings change by default to the  
next Occupied period.  
DAYS  
SCHEDULE  
PERIOD  
HEAT OR COOL  
TEMPERATURES  
SELECTED  
NOTE: Changes are limited to those allowed by the  
lockout level.  
UP ARROW  
CHANGES TIME  
AND  
Mon  
Tue  
Wed  
Thu  
Fri  
Period  
Wake Leave  
AM  
TEMPERATURES  
2. Press Up or Down arrow to change the override temper-  
Heat  
ature, and NEXT to adjust override time.  
Go Back Next  
Step  
Done  
DOWN ARROW  
CHANGES TIME  
AND  
HOLIDAY  
Changes temperature setting for a designated number of days.  
Press MORE and then HOLIDAY. The screen shows “Hold  
Until 1 DAYS”.  
TEMPERATURES  
GO BACK BUTTON  
GOES BACK TO THE  
LAST SCHEDULE STEP  
1
.
Press Up or Down arrow to change the temperature  
desired for the thermostat to override the schedule.  
DONE BUTTON  
EXITS AND SAVES  
CHANGES MADE  
TO SCHEDULE  
2. Press NEXT to change the desired days for the duration  
NEXT STEP BUTTON  
of the holiday.  
To cancel the Holiday Override early, press CANCEL.  
ADVANCES PERIOD,TIME,  
HEAT AND COOL TEMPERATURES  
3.  
M22333  
Fan Status Displayed on Main Screen  
Fig. 37. Screen to edit existing settings.  
.
When the thermostat is running the fan, the fan blade symbol  
appears next to FAN to indicate the thermostat has the fan  
1
1. When complete, press DONE. SAVING CHANGES  
on.  
appears on the screen to indicate changes are being  
saved to the day(s) modified.  
2. To exit schedule without saving changes, press CANCEL  
NOTE: If the thermostat is not controlling the fan—typical for  
many gas, forced-air heating systems—the fan blade  
1
any time.  
symbol  
will not appear even though the fan may  
be running.  
Setting Time  
1.  
2.  
3.  
Press CLOCK.  
Replacing Batteries  
Not all thermostat models require batteries. If the thermostat  
has batteries, a low battery warning (see Fig. 38) flashes on  
the main screen for approximately 30 days.  
Use arrows to set current time.  
Press DONE.  
IMPORTANT  
The current day of the week should already be set  
correctly. If not, see the Advanced Settings section to  
set the day.  
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TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT  
NOTES:  
—
If batteries are not replaced when the Low Battery  
warning is flashing, the LO batt screen displays  
continuously and the thermostat stops operating  
until batteries are replaced.  
WALLPLATE  
TERMINAL SCREW BLOCK  
—
The thermostat has a low battery indicator.  
However, it is recommended that the batteries be  
replaced once each year. Do this to prevent  
leakage and prevent the thermostat and HVAC  
system from shutting down due to lack of  
thermostat battery power.  
PINS ON  
BACK OF  
THERMOSTAT  
M22299  
M22322  
Fig. 40. Placing thermostat back onto subbase.  
Fig. 38. Low battery signal.  
Reading Remote Indoor Temperature  
If connected to an installed remote indoor temperature sensor,  
the thermostat displays the indoor temperature from the  
remote sensor(s).  
Replace the batteries as follows:  
1.  
Remove the thermostat from the base by pulling it  
straight out. (See Fig. 39.)  
2.  
Install two new AA alkaline batteries with proper polar-  
ization.  
NOTE: If connected to an installed remote indoor temperature  
sensor, the thermostat internal sensor is not used.  
NOTES:  
ONE REMOTE INDOOR SENSOR INSTALLED  
—
—
Always use AA alkaline batteries.  
All programming (Schedule, Date and Time)  
information is retained during battery replacement.  
If one remote indoor temperature sensor is used, the screen  
showing the Inside temperature reading displays the  
temperature at the indoor remote sensor location.  
3
.
.
Place thermostat back on subbase by aligning terminal  
screw blocks with the pins on the back of the thermostat.  
MULTIPLE REMOTE INDOOR SENSORS INSTALLED  
If more than one remote indoor sensor is used, the screen  
showing the Inside temperature reading displays the average  
of all the remote indoor sensors.  
(
See Fig. 40.)  
Push the thermostat straight onto the base.  
4
WALL  
Reading Outdoor Temperature  
If connected to an outdoor sensor, the thermostat can display  
the Outside temperature.  
VIEW OUTSIDE TEMPERATURE  
View the outdoor temperature by pressing MORE until the  
outside temperature shows where the Indoor temperature was  
displayed. The word Outdoor will be displayed on the LCD.  
Screen Locked  
Portions of the touch screen interface can be fully or partially  
locked. See the Advanced Settings section for information to  
use these features. When the thermostat displays LOCKED,  
the buttons are either fully or partially locked.  
M23024  
Fully Locked Screen  
Fig. 39. Removing thermostat from subbase.  
In this mode, the entire interface is locked and not functional.  
To unlock screen, see the Advanced Settings section. The  
screen continuously displays SCREEN LOCKED.  
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TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT  
Partially Locked Screen  
Minimum-Off Timer Compressor Protection  
When partially locked:  
The thermostat has an adjustable Minimum-Off Timer that can  
be set from zero to five minutes (Factory Setting—five  
minutes). The Minimum-Off Timer can be bypassed through  
the Installer System Test or it can be bypassed permanently by  
setting the Minimum-Off Timer to 0 minutes in the Installer  
Setup. The Minimum-Off Timer is activated after the  
compressor turns off:  
—
Pressing a locked key prompts the screen to indicate  
SCREEN LOCKED for five to seven seconds.  
—
Pressing an unlocked key with SCREEN LOCKED active  
removes SCREEN LOCKED from the display.  
PARTIAL LOCKOUT 1  
This mode locks all keys except HOLIDAY, OVERRIDE, and  
temperature Up/Down arrows:  
—
If the thermostat is system powered (common wire), the  
Minimum-Off Timer is also activated upon initial startup and  
after power interruptions.  
—
—
—
—
User can change the temperature setpoint, but cannot  
change schedule settings.  
The temporary temperature change lasts until next  
scheduled period. The screen displays that time.  
User can change the temperature setpoint, but cannot  
change schedule settings.  
Pressing HOLIDAY sets the temperature to the Unoccupied  
setting for the selected period of time. The next Occupied  
period switches back to the program settings.  
Pressing OVERRIDE sets the temperature to the Occupied  
setting for the selected period of time. The next Unoccupied  
period switches back to the program settings.  
To cancel the temperature override and follow the  
programmed schedule, press CANCEL.  
—
—
If there is a call for cooling or heating during the Minimum-  
Off Time, the thermostat displays “Wait.”  
When the Minimum Off Timer expires, “Cool On” or “Heat  
On” (heat pumps only)” appears solidly in the display and  
the compressor and fan turn on.  
Economizer/TOD Logic (Table 8)  
—
Table 8. Operation of Terminal A.  
Terminal A  
—
—
Effective  
Occupancy  
Call for  
Cool  
Economizer  
Energized  
TOD  
To unlock the screen, see Advanced Settings section.  
Occupied  
—
Energized  
PARTIAL LOCKOUT 2  
This mode locks all keys except HOLIDAY and OVERRIDE:  
Unoccupied Yes  
No  
Energized  
De-energized  
De-energized De-energized  
Energized Energized  
—
Pressing HOLIDAY sets the temperature to the Unoccupied  
setting for the selected period of time. The next Occupied  
period switches back to the program settings.  
Override  
—
—
Pressing OVERRIDE sets the temperature to the Occupied  
setting for the selected period of time. The next Unoccupied  
period switches back to the program settings.  
Heat Pump Temperature Lockouts  
—
—
To cancel the temperature override and follow the  
programmed schedule, press CANCEL.  
To unlock the screen, see Advanced Settings section.  
Dual Fuel Heat Pump and Outdoor Temperature  
Sensor  
In this operation, there is no external fossil fuel kit (dual fuel kit)  
installed; the thermostat controls this function:  
Temperature Recovery  
1
.
.
Choose correct heat pump application in ISU 0170.  
Choose Outdoor Temperature Sensor for Heat Pump  
Temperature Lockouts Option in ISU 0340.  
Choose appropriate Balance Point Temperature in  
ISU 0350.  
The thermostat is equipped with a feature to eliminate  
guesswork when setting a schedule. That is, the user need not  
know the amount of time for the HVAC system to bring the  
space to temperature (without overshoot) prior to the  
scheduled time.The thermostat manages that automatically.  
2
3.  
OPERATION IN HEAT MODE ABOVE BALANCE POINT (OUTDOOR  
TEMPERATURE)  
When the outdoor temperature is above the selected Balance  
Point Temperature (ISU 0350), only the compressor operates  
and the fan (G terminal) energizes when the thermostat calls  
for heat.  
Simply set the program schedule to the desired time to have  
the space at comfort temperature. In addition, program the  
temperature to this comfort temperature. The thermostat  
activates the heating or cooling at the proper time to reach the  
scheduled temperature at the scheduled time.  
NOTE: The setpoint changes gradually to use economical  
stages and avoid overshoot.  
OPERATION IN HEAT MODE BELOW BALANCE POINT (OUTDOOR  
TEMPERATURE)  
When the outdoor temperature is below the selected Balance  
Point Temperature (ISU 0350), only the Fossil Fuel (auxiliary  
heat) operates and the fan (G terminal) does not energize  
when the thermostat calls for heat.  
For example—the space will be occupied at 8:00 AM and the  
desired temperature is 70°F. Set the OCC 1 period for 8:00 AM  
and 70°F. The thermostat turns on the heat prior to 8:00 AM to  
raise the temperature to 70°F by 8:00 AM.  
The thermostat provides an alert that the heating or cooling  
system is coming on before a scheduled time by displaying  
Heat Pump with Auxiliary (Backup) Heat and Outdoor  
Temperature Sensor  
“Recovery” on the screen.  
1.  
.
Choose correct heat pump application in ISU 0170.  
Choose Outdoor Temperature Sensor for Control  
Option in ISU 0340.  
2
3
.
.
Choose Compressor Lockout Temperature in  
ISU 0350.  
Choose Auxiliary Lockout Temperature in ISU 0360.  
4
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TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT  
NOTE: There is a 5°F deadband between Compressor and  
Auxiliary Heat lockout temperatures  
Table 10. Sequence of Operation for Heat Pump Systems.  
System Fan Energize Screen  
Setting Setting Call for Action Terminals Message  
Operation in Heat Mode  
Off  
Auto  
—
O/Ba  
—
When the outdoor temperature is:  
Cool  
—
—
—
Below Compressor Lockout Temperature: only Auxiliary  
Heat operates.  
Above Auxiliary Lockout Temperature: only the Compressor  
operates.  
Between the two temperatures: both the Compressor and  
Auxiliary Heat operate.  
Cool  
or Auto  
Auto  
Stage 1 Cooling  
Y, G, O/Ba  
Cool On  
Stages 1 and 2  
Cooling  
b
Y, Y2 , G,  
O/Ba  
Heat  
Auto  
Auto  
None  
O/Ba  
—
Heat  
or Auto  
Stage 1 Heating  
Y, G, O/Ba  
Heat On  
COMPRESSOR ONLY  
AUXILIARY  
LOCKOUT  
Stages 1 and 2  
Heating  
c
Auxiliary  
Heat On  
5
3
0
5
Y, W1 , G,  
O/Ba  
TEMPERATURE  
BOTH COMPRESSOR AND  
AUXILIARY HEAT  
Stages 1, 2 and 3  
Heating  
b
COMPRESSOR  
LOCKOUT  
TEMPERATURE  
Y, Y2 ,  
d
W1 , G,  
AUXILIARY ONLY  
O/Ba  
M19950  
a
Configure O/B in Installer Setup. Based on last piece of  
equipment called (cooling = O; heating = B).  
Fig. 41. Heat Pump Operation with Lockout Temperatures  
Set.  
b
c
d
If Installer Setup System Type is set to 3Heat/2Cool Heat  
Pump with Auxiliary Heat.  
Operating Sequence  
If Installer Setup System Type is set to 2Heat/1Cool Heat  
Pump with Auxiliary Heat.  
The thermostat energizes specific terminal(s), depending on  
the demand for heating, cooling or fan. The thermostat screen  
shows the time, inside temperature, system and fan selections.  
Additional indicators are shown when the heating, cooling or  
fan is energized. See Tables 9 and 10 for specification  
information.  
This terminal does not energize if Installer Setup System type  
is set to 2 Heat/2 Cool Heat Pump with no Auxiliary Heat.  
Second Stage Heat and Cool Control  
While maintaining setpoint, several factors affect when 2nd  
stage energizes such as load conditions, environmental  
conditions, P+I control, and home insulation. The second stage  
energizes when the thermostat senses 1st stage is running at  
Table 9. Sequence of Operation for Conventional Systems.  
System  
Fan  
Energize  
Screen  
Setting Setting Call for Action Terminals Message  
90% capacity. This operation is droopless control.  
Off  
Auto  
Auto  
Auto  
—
—
—
—
Cool  
—
—
Temperature Sensor Operation and Checkout  
Cool  
or Auto  
Stage 1  
Cooling  
Y, G  
Cool On  
Allow outdoor or indoor temperature sensor to absorb the air  
for a minimum of five minutes before taking a reading. See the  
Sensor instructions for more information.  
Cool  
or Auto  
Auto  
Stages 1 and 2  
Cooling  
a
Cool On  
Y, Y2 , G  
NOTE: The C7089U, C7189U, and T7770A Temperature  
Sensors are calibrated at the factory and cannot  
be recalibrated in the field.  
Heat  
Auto  
Auto  
—
—
—
Heat  
or Auto  
Stage 1  
Heating  
W, Gb  
Heat On  
Heat  
or Auto  
Auto  
Stages 1 and 2  
Heating  
c
b
Heat On  
W, W2 , G  
C7089U Outdoor Temperature Sensor  
a
If Installer Setup System type is set to two stages of cooling.  
G energizes only if Installer Setup 0180 is set to Electric.  
If Installer Setup System type is set to two stages of heating.  
Operation  
b
c
When installed with Thermostat ISU 0340 set to 1 or 2, the  
thermostat can display outside temperature.  
Checkout  
Allow C7089U Outdoor Sensor to absorb outdoor air for a  
minimum of twenty minutes before taking a reading.  
With an accurate thermometer (±1°F [0.5°C]) measure the  
temperature at the sensor location, allowing time for the  
thermometer to stabilize before reading.  
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TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT  
To verify sensor resistance, remove one wire from one of the  
C7089U 60-in. leadwires. Use an ohmmeter to measure the  
resistance across the sensor. Then compare sensor accuracy  
with the temperature/resistance curve in Fig. 42.  
T7770A Remote Temperature Sensor  
Operation  
When installed with Thermostat ISU 0340 set to 3 or 4, the  
remote inside temperature is displayed on the Thermostat  
Home Screen as Inside Temperature. The thermostat internal  
temperature sensor is not used.  
C7189U Remote Indoor Temperature Sensor  
Operation  
The T7770A can be used to provide one remote sensor input  
or as a temperature averaging network with multiple T7770A  
Sensors connected, as shown in Fig. 26 through 28.  
When installed with Thermostat ISU 0340 set to 3, the remote  
inside temperature is displayed on the Thermostat Home  
Screen as Inside Temperature. The thermostat internal  
temperature sensor is not used.  
Checkout  
The C7189U can be used to provide one remote sensor input  
or as a temperature averaging network with multiple C7189U  
Sensors connected, as shown in Fig. 29.  
For best results, allow T7770A Wall Mount Temperature  
Sensor to absorb the air moving through the room for a  
minimum of twenty minutes before taking a resistance  
measurement.  
Checkout  
With an accurate thermometer (±1°F [0.5°C]) measure the  
temperature at the sensor location, allowing time for the  
thermometer to stabilize before reading.  
For best results, allow C7189U Wall Mount Temperature  
Sensor to absorb the air moving through the room for a  
minimum of twenty minutes before taking a resistance  
measurement.  
To verify sensor resistance, remove one wire from one of the  
wiring terminals. Use an ohmmeter to measure the resistance  
across the sensor. Then verify the sensor accuracy with the  
temperature/resistance in Fig. 43.  
With an accurate thermometer (±1°F [0.5°C]) measure the  
temperature at the sensor location, allowing time for the  
thermometer to stabilize before reading.  
To verify sensor resistance, remove one wire from one of  
C7189U wiring terminals. Use an ohmmeter to measure the  
resistance across the sensor. Then compare sensor accuracy  
with the temperature/resistance curve in Fig. 42.  
80K  
7
6
0K  
0K  
5
4
3
2
0K  
0K  
0K  
0K  
220K  
190K  
160K  
130K  
100K  
2
7
0K OHM AT  
o o  
7 F (25 C)  
1
0K  
9
0K  
0K  
3
0
0
40  
50  
10  
60  
70  
20  
80  
90  
100 110 o  
F
o
30  
40  
C
6
TEMPERATURE (DEGREES)  
M5874A  
1
7
0K OHM AT  
o o  
7 F (25 C)  
3
0K  
Fig. 43. 20K ohm sensor resistance versus temperature.  
0
K
-40  
40 -30 -20 -10  
-20  
0
20  
40  
60  
20  
80  
30  
100 120 oF  
40 50 C  
o
-
0
10  
TEMPERATURE (DEGREES)  
M22823  
Fig. 42. 10K ohm sensor resistance versus temperature.  
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TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT  
TROUBLESHOOTING (TABLE 11)  
Table 11. Troubleshooting.  
Possible Cause  
Thermostat is not being powered.  
Symptom  
Action  
Display does not come on.  
Check for 24 Vac between C and Rc.  
Check that AAA batteries are installed correctly  
and are good.  
Temperature settings do not  
change.  
The upper or lower temperature limits were Check temperature setpoints.  
reached. Check ISU 0600 and 0610; modify as needed.  
The keypad is fully locked.  
Check ISU 0670 to change keypad locked  
options.  
Heating or cooling does not come Thermostat minimum off-time is activated. Wait up to five minutes for the system to respond.  
on.  
System selection is not set to Heat or Cool. Set system Selection to correct position.  
System type Selection is incorrect.  
Check ISU 0170 and make sure correct System  
type is chosen.  
Thermostat is calling for Heat  
Heat on) or Cool (Cool on) but  
no heating or cooling is running.  
Heating or cooling equipment is not  
operating.  
Check wiring.  
Check ISU 0170 and make sure correct system  
type is chosen.  
(
Verify operation of equipment in System Test  
mode.  
Heat does not turn on (Heat On is Heating equipment failure.  
solid in the display).  
Check for 24 Vac at the equipment on the  
secondary side of the transformer between power  
and common. If voltage is not present, check the  
heating equipment to find the cause of the  
problem.  
Check for 24 Vac between the heat terminal (W)  
and transformer common. If 24 Vac is present, the  
thermostat is functional. Check the heating  
equipment to find the cause of the problem.  
Loose or broken wire connection between Check for 24 Vac between the heat terminal (W)  
thermostat and heating equipment.  
and transformer common. If voltage is not  
present, check wire connection (loose or broken)  
between the thermostat and the heating  
equipment.  
Cooling does not turn on (Cool  
On is solid in the display).  
Cooling equipment failure.  
Check for 24 Vac at the equipment on the  
secondary side of the transformer between power  
and common. If voltage is not present, check the  
cooling equipment to find the cause of the  
problem.  
Check for 24 Vac between the cool terminal (Y)  
and transformer common. If 24 Vac is present, the  
thermostat is functional. Check the cooling  
equipment to find the cause of the problem.  
Loose or broken wire connection between Check for 24 Vac between the cool terminal (Y)  
thermostat and cooling equipment.  
and transformer common. If voltage is not  
present, check the wire connection (loose or  
broken) between the thermostat and the cooling  
equipment.  
Fan does not turn on in a call for Fan Control in Heating is set to Gas or Oil Set Fan Control in Heating to Electric Furnace  
heat (electric furnace).  
Furnace (Setting 0180).  
(Setting 0180).  
Heat pump puts out cool air in the Changeover Valve (ISU 0190) is not  
Set Changeover Valve (ISU 0190) to match the  
changeover required by the installed heat pump.  
heat mode and warm air in the  
cool mode.  
configured to match the changeover  
required by the installed heat pump.  
Both the heating and cooling  
equipment are running at the  
same time.  
The heating equipment is not a heat pump Set System Type (ISU 0170) to match the  
but the System Type (ISU 0170) is set to installed heating and/or cooling equipment.  
Heat Pump.  
Heating and cooling wires are shorted  
together.  
Separate the shorted heating and cooling wires.  
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TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT  
Table 11. Troubleshooting. (Continued)  
Possible Cause  
Heating equipment is running in Heating equipment is not a heat pump but Set System Type (ISU 0170) to match the  
installed heating and/or cooling equipment.  
Symptom  
Action  
the cool mode.  
System Type (ISU 0170) is set to Heat  
Pump.  
Heating equipment does not turn Heating equipment is not a heat pump but Set System Type (ISU 0170) to match the  
off and heat temperature setting System Type (ISU 0170) is set to Heat  
is set below room temperature Pump.  
Heat On is not in the display).  
installed heating and/or cooling equipment.  
(
Cannot set the system setting to System Type (ISU 0170) is set to Cool  
Heat. Only.  
Set System Type (ISU 0170) to match the  
installed heating and/or cooling equipment.  
Cannot set the system setting to System Type (ISU 0170) is set to Heat  
Set System Type (ISU 0170) to match the  
installed heating and/or cooling equipment.  
Cool.  
Only or Heat Only with Fan.  
Heat On is not in the display.  
System setting is not set to Heat and/or  
temperature setting is not set above room temperature setting above the room temperature.  
temperature.  
Set the system setting to Heat and set the  
Cool On is not in the display.  
Wait is in the display.  
System setting is not set to Cool and/or the Set the system setting to Cool and set the  
temperature setting is not set below room temperature setting below the room temperature.  
temperature.  
Compressor minimum off timer is active.  
Wait up to five minutes for the cooling or heating  
heat pump) equipment to turn on.  
(
“
Screen Locked” appears on the The keypad is fully or partially locked.  
Check ISU 0670 to change keypad locked  
options.  
screen and all or some of the  
keys do not respond.  
23  
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TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT  
Automation and Control Solutions  
Honeywell International Inc.  
985 Douglas Drive North  
Honeywell Limited-Honeywell Limitée  
35 Dynamic Drive  
1
Golden Valley, MN 55422  
customer.honeywell.com  
Toronto, Ontario M1V 4Z9  
®
©
U.S. Registered Trademark  
2011 Honeywell International Inc.  
6
3-2635—03 M.S. Rev. 03-11  
Printed in U.S.A.  

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