Honeywell TB8220U Thermostat User Manual

TB8220U

Commercial VisionPRO™

Programmable Thermostat

INSTALLATION INSTRUCTIONS

APPLICATION

The TB8220U Programmable Thermostat provides electronic control of 24 Vac heating and cooling systems.

See Table 1 for a description.

Table 1. TB8220U Thermostat Description.

Feature

Description

Powering Methods

•

Battery only

Direct connection to a 24 Vac transformer only

Direct connection to a 24 Vac transformer with battery backup

System Types

•

Conventional (up to 2 Heat, 2 Cool stages)

Heat Pump (up to 3 Heat, 2 Cool stages)

Changeover

System Setting

Fan Setting

Manual or automatic changeover (selectable)

Heat-Off-Cool-Auto

Auto-On

Installer must be a trained, experienced service

technician.

MERCURY NOTICE

4. After installation is complete, check out product

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.

operation as provided in these instructions.

CAUTION

Contact your local waste management authority

for instructions regarding recycling and the

proper disposal of an old control.

Electrical Shock or Equipment Damage

Hazard.

Can shock individuals or short equipment

circuitry.

Disconnect power supply before installation.

INSTALLATION

Select Thermostat Location

When Installing this Product...

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. 1.

Read these instructions carefully. Failure to follow

them could damage the product or cause a

hazardous condition.

Check ratings given in instructions and on the

product to ensure the product is suitable for your

application.

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TB8220U COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT

Remove the wallplate from the wall and drill two

/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.

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.

YES

5 FEET

1.5 METERS]

[

WALL

WIRES THROUGH WALL

AND WIRE SLOT

WALL ANCHORS (2)

M22258

Fig. 1. Select thermostat location.

Do not install the thermostat where it can be affected by:

MOUNTING

HOLES

—

Drafts or dead spots behind doors and in corners.

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.

MOUNTING

SCREWS (2)

M19916

Separate Wallplate from Thermostat

Separate the wallplate from the thermostat. See

Fig. 2.

Fig. 3. Install wallplate.

WALLPLATE

WIRE HOLE

WIRING

IMPORTANT

—

All wiring must agree with applicable codes,

ordinances and regulations.

Use 18 gauge thermostat wire. Shielded cable is

not required.

—

NOTES:

—

Sensor wires must have a cable separate

from the thermostat control cable.

Refer to Table 2 for terminal designation

descriptions.

See Fig. 7 through 17 for wiring diagrams for

specific equipment applications.

—

THERMOSTAT

M22267

Fig. 2. Separate wallplate from thermostat.

Select set of terminal identifications that correspond

to your system type (conventional or heat pump).

(

See Fig. 4).

Install Wallplate (See Fig. 3)

Mount the thermostat horizontally on the wall:

HEAT PUMP

CONVENTIONAL

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.

O/B

SCREW

TERMINALS

M22780A

Fig. 4. Terminal identifications for system type.

. Loosen screw terminals used for the application.

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TB8220U COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT

Insert the wires into the terminal block and tighten

each screw terminal. See Fig. 5.

WIRE

WALLPLATE

M19917

Fig. 5. Insert wires into terminal block.

WALL OPENING

SHADED AREA

Push excess wire back into the wall opening and

restrict wires to the shaded area. See Fig. 6.

Plug the wall opening with nonflammable insulation

to prevent drafts from affecting the thermostat.

M22266

Fig. 6. Restrict wires to shaded area of wire hole.

Table 2. Terminal Designation Descriptions.

Terminal Designation

Description

Power for cooling—connect to secondary side of cooling system transformer.

Power for heating—connect to secondary side of heating system transformer.

Compressor output.

Rc (see Note 1)

R (see Note 1)

C (see Note 2)

Common wire from secondary side of cooling system transformer.

Heat relay.

Fan relay.

Second stage heat relay.

Second stage cooling.

O/B (see Note 3)

A (see Note 4)

S1 (See Note 5)

S2 (See Note 5)

Changeover valve for heat pumps.

Economizer/Time-Of-Day (TOD) output—powered via R terminal.

Optional outdoor or indoor remote sensor.

Powers red LED behind plastic in upper right corner of the thermostat.

Auxiliary Heat Relay Output (Head Pump Mode 2H/1C, 3H/2C)

NOTES:

— 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.

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.

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.

Table 3. Wiring Diagrams.

Wallplate

Terminal

Identifications

Wiring

Diagram

Figure

System Type

Standard Heat/Cool

Heat Only

Conventional

7, 8

Heat Only with Fan

Cool only

Standard Multistage

up to 2 Heat/2 Cool

12, 13

(Power indicates occupied.)

Sensor wires must have a cable separate

from the thermostat control cable.

Heat Pump

(No Auxiliary Heat)

Heat Pump

14, 15

16, 17

Heat Pump

Terminal “A” Wiring Details for Economizers

(with Auxiliary Heat)

—

Wire the A terminal to the W7212 “N” terminal, or the

W7459 “TR” terminal.

Multiple T7770A Sensors

Multiple C7189U Sensors

—

18, 19, 20

—

When using dual transformers at the thermostat, the

heating transformer must power the economizer.

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TB8220U COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT

Conventional System Wiring

(HOT)

24 VAC

HOT)

(

24 VAC

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

HEAT RELAY

FAN RELAY

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

ECONOMIZER

COMPRESSOR CONTACTOR

HEAT RELAY

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

ECONOMIZER

FACTORY INSTALLED JUMPER.

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

WHEN USING BATTERIES, THE 24V COMMON CONNECTION IS

OPTIONAL.

M22783A

FACTORY INSTALLED JUMPER.

Fig. 9. Typical hookup of heat-only system.

WHEN USING BATTERIES, THE 24V COMMON CONNECTION

IS OPTIONAL.

M22781A

Fig. 7. Typical wiring of single transformer

H/1C system.

(HOT)

4 VAC

(HOT)

24 VAC

FAN RELAY

HEAT RELAY

ECONOMIZER

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

FAN RELAY

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

COMPRESSOR CONTACTOR

FACTORY INSTALLED JUMPER.

HOT)

(

WHEN USING BATTERIES, THE 24V COMMON CONNECTION

IS OPTIONAL.

HEAT RELAY

ECONOMIZER

24 VAC

M22784A

Fig. 10. Typical hookup of heat-only system with fan.

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

REMOVE FACTORY INSTALLED JUMPER.

WHEN USING BATTERIES, THE 24V COMMON CONNECTION

IS OPTIONAL. WHEN USED, THE COMMON MUST CONNECT

TO THE COOLING TRANSFORMER SECONDARY.

(HOT)

M22782A

4 VAC

Fig. 8. Typical hookup of dual transformer

H/1C system.

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

FAN RELAY

COMPRESSOR CONTACTOR

ECONOMIZER

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

FACTORY INSTALLED JUMPER.

WHEN USING BATTERIES, THE 24V COMMON CONNECTION

IS OPTIONAL.

M22785A

Fig. 11. Typical hookup of cool-only system.

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TB8220U COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT

(HOT)

24 VAC

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

FAN RELAY

COOL RELAY 2

COOL RELAY 1

HEAT RELAY 1

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

FAN RELAY

COOL RELAY 2

COOL RELAY 1

HEAT RELAY 2

ECONOMIZER

HEAT RELAY 2

ECONOMIZER

HOT)

(

HEAT RELAY 1

24 VAC

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND

OVERLOAD PROTECTION AS REQUIRED.

FACTORY INSTALLED JUMPER.

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND

OVERLOAD PROTECTION AS REQUIRED.

REMOVE FACTORY INSTALLED JUMPER.

WHEN USING BATTERIES, THE 24V COMMON CONNECTION

IS OPTIONAL.

M22786A

WHEN USING BATTERIES, THE 24V COMMON CONNECTION

IS OPTIONAL. WHEN USED, THE COMMON MUST CONNECT

TO THE COOLING TRANSFORMER SECONDARY.

M22787A

Fig. 12. Typical hookup of single transformer

multistage system (up to 2H/2C).

Fig. 13. Typical hookup of dual transformer multistage

system (up to 2H/2C).

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TB8220U COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT

Heat Pump System Wiring

(

HOT)

(HOT)

24 VAC

O/B

FAN RELAY

OUTDOOR/INDOOR

TEMPERATURE

FAN RELAY

OUTDOOR/INDOOR

TEMPERATURE

COMPRESSOR CONTACTOR

CHANGEOVER VALVE

ECONOMIZER

SENSOR

COMPRESSOR CONTACTOR

CHANGEOVER VALVE

SENSOR

ECONOMIZER

AUXILIARY HEAT RELAY

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

FACTORY INSTALLED JUMPER.

WHEN USING BATTERIES, THE 24V COMMON CONNECTION

IS OPTIONAL.

WHEN USING BATTERIES, THE 24V COMMON CONNECTION

IS OPTIONAL.

"O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B"

IN THE INSTALLER SETUP.

"O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B"

IN THE INSTALLER SETUP.

OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR.

AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A

CABLE SEPARATE FROM THE THERMOSTAT CABLE.

OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR.

AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A

CABLE SEPARATE FROM THE THERMOSTAT CABLE.

M22788A

M22790A

Fig. 14. Typical hookup of single-stage heat pump

with no auxiliary heat (1H/1C).

Fig. 16. Typical hookup of single-stage heat pump

with auxiliary heat (2H/1C).

(

HOT)

(HOT)

24 VAC

O/B

OUTDOOR/INDOOR

TEMPERATURE

FAN RELAY

OUTDOOR/INDOOR

TEMPERATURE

FAN RELAY

COMPRESSOR 1

SENSOR

CHANGEOVER VALVE

COMPRESSOR 2 COMPRESSOR 1

CHANGEOVER VALVE

COMPRESSOR 2

ECONOMIZER

AUXILIARY HEAT RELAY

ECONOMIZER

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

FACTORY INSTALLED JUMPER.

WHEN USING BATTERIES, THE 24V COMMON CONNECTION

IS OPTIONAL.

WHEN USING BATTERIES, THE 24V COMMON CONNECTION

IS OPTIONAL.

"O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B"

IN THE INSTALLER SETUP.

O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B"

IN THE INSTALLER SETUP.

OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR.

AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A

CABLE SEPARATE FROM THE THERMOSTAT CABLE.

OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR.

AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A

CABLE SEPARATE FROM THE THERMOSTAT CABLE.

M22789A

M22791A

Fig. 15. Typical hookup of multistage heat pump with

no auxiliary heat (2H/2C).

Fig. 17. Typical hookup of multistage heat pump

with auxiliary heat (3H/2C).

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TB8220U COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT

Sensor Wiring for Temperature Averaging

SUBBASE

T7770A1006

T7770A

T7770A3002

T7770A

T7770A1006

T T

M22831

THE T7770A3002 IS A 10K OHM SENSOR. _M₂₂₉₃₄

Fig. 18. Wiring four T7770A1006 (20K ohm) Sensors.

Fig. 20. Wiring two T7770A1006 (20K ohm) Sensors

and one T7770A3002 (10K ohm) sensor to provide a

temperature averaging network

SUBBASE

C7189

T7770A3002

THE T7770A3002 IS A 10K OHM SENSOR.

M22933

Fig. 19. Wiring two T7770A3002 (10K ohm) Sensors to

provide a temperature averaging network.

WIRES MUST HAVE A CABLE SEPARATE FROM

THE THERMOSTAT CABLE.

M22935

Fig. 21. Wiring four C7189U (10K ohm) Sensors to

provide a temperature averaging network.

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TB8220U COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT

POWER THE THERMOSTAT

You can choose from three methods to power the

thermostat:

IMPORTANT

This tab must be removed in order to set the

real-time clock.

•

Batteries only (AAA alkaline).

24 Vac direct connection only.

24 Vac direct connection with battery backup (AAA

alkaline).

REMOVE

TAB

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.

SALTION

•

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.

SALTION

Installing Batteries

M19920

Install three AAA alkaline batteries on the back of

the thermostat as marked. See Fig. 22.

Fig. 23. Remove tab labeled REMOVE from

thermostat back.

Setting Calendar and Time

Setting Calendar

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:

SETTING CALENDAR WHEN THERMOSTAT IS FIRST POWERED

When the thermostat is first powered, the display is ready

to set the calendar and time. The thermostat proceeds

through a sequence of setup screens. See Fig. 24.

BATTERIES (3)

M19918

SETTING CALENDAR AFTER THERMOSTAT IS ALREADY

FUNCTIONING

Fig. 22. Installing batteries.

Locate and remove the tab labeled Remove. See

Fig. 23.

See steps 1 through 4, in the Advanced Settings section,

to set year, month and day.

SET CURRENT DAY

SET MONTH

MM OO NN

TUE

WED

THU

F RR II

SUN

MON

WEDD

THU

FRI

SUN

OK TO PICK MULTIPLE DAYS SCREEN LOCKED

CHANGE FILTER UV LAMP HUMIDIFIER PAD

OK TO PICK MULTIPLE DAYS SCREEN LOCKED

CHANGE FILTER UV LAMP HUMIDIFIER PAD

DONE

USE ARROWS TO SET YEAR AND TIME

M22761

Fig. 24. Setting calendar and time after initial powerup.

it snaps into place. See Fig. 25.

Mount Thermostat to Wallplate

Align the terminal screw blocks with the pins on the

back of the thermostat.

Push the thermostat straight onto the wallplate until

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TB8220U COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT

Advanced Settings

WALL

The thermostat has advanced settings to match the HVAC

system. These settings can be adjusted to match specific

needs. Access to these settings is obtained as follows:

From the main screen, press SYSTEM. Five blank

touch keys show on the bottom of the screen

between DONE and CANCEL.

Press and hold the two blank keys on either side of

the center blank key for approximately five seconds.

(

See Fig. 26.)

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.

NOTE: To cycle through the Setup Numbers, press the

up or down arrow.

TION

INST

M19919

Fig. 25. Mount thermostat to wallplate.

INSTALLER SETUP NUMBERS, SETTINGS, AND TESTS (TABLE 4)

Installer System Tests

Use the Installer System Test to test the heating, cooling

and fan. Refer to the latter portion of Table 4.

Inside

Set To

CAUTION

Following

Schedule

Equipment Damage Hazard.

Minimum compressor off time is bypassed

during Installer System Test

Avoid cycling compressor quickly.

SYSTE

HEAT

OFF

DONE

CANC

IMPORTANT

Use Installer System Test to test heating, cooling

and fan. The setting chosen for System Type

(

Installer Setup Number 0170) can prevent some

System Test Numbers from appearing.

M19923

Fig. 26. Entering Installer Setup.

Table 4. Installer Setup Menu.

Installer

Setup

Number

Installer Setup

Name

Default

Setting

All Settings

20—20xx

1—21xx

Notes

0120

Date (Year Upper) 20

Available year range: 2001 - 2178

0130

0140

0150

0160

Date (Year Lower) 04

00-99

1-12

Available year range: 2001 - 2178

Date (Month)

Date (Day)

1-31 (Month Dependent)

0—Non-Programmable

Schedule Options

—Programmable

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TB8220U COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT

Table 4. Installer Setup Menu. (Continued)

Installer

Setup

Number

Installer Setup

Name

Default

Setting

All Settings

1—1H/1C Conv

Notes

170

System Selection

To use the Emergency Heat button, select setting

#7 or #12. See Fig. 16 or 17 for auxiliary heat

wiring.

—1H/1C HP

—1H w/o fan

—1H with fan

—1C

—2H/1C HP (Aux. Heat)

—2H/2C Conv

—2H/1C Conv

0—1H/2C Conv

1—2H/2C HP

2—3H/2C HP (Aux.

Heat)

0175

0180

0185

TOD/Economizer

output (terminal A)

0—Unused

1—TOD

Economizer energizes A during a call for cool.

TOD energizes A during Occupied period, and de-

energizes A during Unoccupied.

—Economizer

0—Fossil

—Electric

Heat Fan Operation 0

Only shown for conventional system with heat

stages and fan capability selected. If heat pump is

selected, fan defaults to electric.

Pre-occupancy

Purge Duration

0—no duration

1—one hour

Shown only if system has fan and schedule

programmable.

—two hours

—three hours

Pre-occupancy purge enabled by nonzero duration

(and sends economizer to minimum position).

190

220

Reversing Valve

O/B

0—O (O/B On Cool)

1—B (O/B On Heat)

Only shown with heat pump system selected.

Cycles Per Hour

1-6

Only shown for system with cool stages. Selection

in this stage changes default CPH of second stage

cool.

(

CPH) for first stage

compressor

230

240

CPH for second

stage compressor

1-6

Only shown if two stages of cool selected.

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

1-12

Only shown with at least two stages conventional

heat or 2H/1C heat pump selected.

0260

0270

0280

CPH for third Stage

Heat

1-12

Only shown if 3H/2C heat pump is selected.

CPH for Auxiliary

Heat

Only shown if multi-stage heat pump is selected

(heat pump with more heat than cool stages).

Continuous

Backlight

0—No

1—Yes

Always shown. If AC power not present the option

is overridden and normal backlight operation

occurs.

300

310

Changeover

Deadband

0—Manual

Only shown if system has both heat and cool

stages.

—Auto

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)

(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)

320

330

Temperature

Indication Scale

0—°F

1—°C

Daylight Saving

0—Disabled

—Enabled (US 1987)

—Enable (US 2007)

—Enabled (Europe)

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TB8220U COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT

Table 4. Installer Setup Menu. (Continued)

Installer

Setup

Number

Installer Setup

Name

Default

Setting

All Settings

0—None

1—Outdoor for Display

2—Outdoor for Control

Notes

0340

Remote

Temperature

Sensor

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).

—Remote 10K Indoor

—Remote 20K Indoor

0350

Heat Pump

Compressor

Lockout

0—None

15(-9.5)—15°F (-9.5°C)

20(-6.5)—20°F (-6.5°C)

Only shown for heat pump systems with more heat

stages than cool selected and remote sensor

selection is outdoor for control.

5(-4.0)—25°F (-4.0°C)

0(-1.0)—30°F (-1.0°C)

5(1.5)—35°F (1.5°C)

0(4.5)—40°F (4.5°C)

5(7.0)—45°F (7.0°C)

Must enforce a dead band between this and

Auxiliary Lockout

360

535

Heat Pump

Auxiliary 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.

5(7.0)—45°F (7.0°C)

0(10.0)—50°F (10.0°C) Must enforce a dead band between this and Heat

5(13.0)—55°F (13.0°C) Pump Compressor Lockout.

0(15.5)—60°F (15.5°C)

Temporary

Occupied Duration

Limit

0—no duration

1—one hour

2—two hours

0 means no limit

—three hours

—four hours

540

580

Number of Periods

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.

Minimum

Compressor Off

Time

0—Off

2—2 minutes

3—3 minutes

Only shown if system has cool stages.

—4 minutes

—5 minutes

0600

0610

0640

0650

0660

0670

Heat Temperature 90

Range Stops

40 to 90°F (4 to 32°C)

50 to 99°F (10 to 37°C)

12—12 Hour

Only shown if system has heat stages.

Only shown if system has cool stages.

Cool Temperature 50

Range Stops

Clock Format

4—24 Hour

Extended Fan-on

time Heat

0—Off

90—90 seconds

Not displayed with fan set to fossil or with cool-only

systems

Extended Fan-on

time Cool

0—Off

40—40 seconds

Only shown if system has cool stages.

Keypad Lockout

0—Unlocked

Unlocked: All functions accessible.

Partial 1: Locks all but Holiday, Override, and Up/

Down.

Partial 2: Locks all but Holiday and Override.

Full: Entire interface locked/non-functional.

—Partial Lockout 1

—Partial Lockout 2

—Fully Locked

680

685

Temperature

Control 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. (For use with oversized equipment.)

—More Aggressive

Recovery Heat

Ramp Rate

0-20°F/hour

Only shown if system has heat stages.

0 disables ramped recovery (step setpoint change

at period start time).

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TB8220U COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT

Table 4. Installer Setup Menu. (Continued)

Installer

Setup

Number

Installer Setup

Name

Default

Setting

All Settings

Notes

0690

Temperature

Control 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

More Aggressive stops signal prior to reaching the

setpoint. (For use with oversized equipment.)

695

700

Recovery Cool

Ramp Rate

0-20°F/hour

Only shown if system has cool stages.

0 disables ramped recovery (step setpoint change

at period start time).

Temperature

Display Offset

-3 (-1.5)— -3°F (-1.5°C) This offset applies to both the control temperature

-2 (-1.0)— -2°F (-1.0°C) and to the display temperature for indoor sensor

1 (-0.5)— -1°F (-0.5°C) (and remote indoor sensor).

(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)

710

Restore Factory

Defaults

0—No

1—Yes

Resets all ISU parameters to default values and

resets the schedule to default Energy Star. Retains

only calendar settings and time.

INSTALLER TESTS

Test 1

Installer Test

Cool

0—Off

1—Cool Stage 1

—Cool Stage 2

Test 2

Test 3

Installer Test

Fan

0—Off

1—Fan On

Installer Test

Heat

0—Off

1—Heat Stage 1

—Heat Stage 1 and 2

—Heat Stage 1,2 and 3

Test 4

Test 8

Installer Test

Auxiliary Heat

0—Auxiliary Heat Off

1—Auxiliary Heat On

Installer Test

TOD/Economizer

0—TOD/Economizer Off

1—TOD/Economizer On

NOTE: Press the Done button to exit the Installer System Test.

Table 5. Energy Star Default Program Settings.

Setpoints

OPERATION

Schedule

Period

Fan

Time

Heat

70°F

21°C)

10:00pm 55°F

(10°C)

Cool

Setting

System Settings

Occ1

8:00am

78°F

(25.5°C)

Auto

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.

(

Unocc1

85°F

(29.5°C)

Auto

_O_c_c₂a

—

_U_n_o_c_c₂a

—

Fan Settings

aThe thermostat default setting is two period only. To use

four periods, change the appropriate setup parameter.

Auto —Fan runs only when heating/cooling system is on.

On—Fan runs continuously.

Table 5 shows default program settings. See Owner’s

Guide for complete instructions to change the program.

minutes in the Installer Setup. The Minimum-Off Timer is

activated after the compressor turns off:

— If the thermostat is system powered (common wire),

the Minimum-Off Timer is also activated upon initial

startup and after power interruptions.

— If there is a call for cooling or heating during the

Minimum-Off Time, the thermostat displays “Wait.”

Minimum-Off Timer Compressor

Protection

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

62-3070—03

TB8220U COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT

—

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.

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.

“

Outdoor or Indoor Temperature Sensor

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.

Heat Pump with Auxiliary (Backup) Heat and

Outdoor Temperature Sensor

Choose correct heat pump application in Installer

Setup Number 0170.

Choose Outdoor Temperature Sensor for

Control Option in Installer Setup Number 0340.

Choose Compressor Lockout Temperature in

Installer Setup Number 0350.

Economizer/TOD Logic (Table 6)

Table 6. Operation of Terminal A.

Terminal A

Effective

Call for

Cool

Occupancy

Economizer

Energized

TOD

4. Choose Auxiliary Lockout Temperature in

Installer Setup Number 0360.

Occupied

—

Energized

Unoccupied Yes

Energized

De-energized

NOTE: There is a 5°F deadband between Compressor

and Auxiliary Heat lockout temperatures.

De-energized De-energized

Energized Energized

Override

—

Operation in Heat Mode

When the outdoor temperature is:

Heat Pump Temperature Lockouts

—

Below the Compressor Lockout Temperature, only the

Auxiliary Heat operates.

Above the Auxiliary Lockout Temperature, only the

Compressor operates. See Fig. 31.

Between the two temperatures, both the Compressor

and Auxiliary Heat operate.

Dual Fuel Heat Pump and Outdoor Sensor

In this operation, there is no external fossil fuel kit (dual

fuel kit) installed; the thermostat controls this function:

Choose correct heat pump application in Installer

Setup Number 0170.

Choose Outdoor Temperature Sensor for Heat

Pump Temperature Lockouts Option in Installer

Setup Number 0340.

Choose appropriate Balance Point Temperature

in Installer Setup Number 0350.

COMPRESSOR ONLY

AUXILIARY

LOCKOUT

TEMPERATURE

BOTH COMPRESSOR AND

AUXILIARY HEAT

COMPRESSOR

LOCKOUT

OPERATION IN HEAT MODE ABOVE BALANCE POINT

OUTDOOR TEMPERATURE)

TEMPERATURE

AUXILIARY ONLY

(

M19950

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.

Fig. 27. Heat Pump Operation with Lockout

Temperatures Set.

62-3070—03

TB8220U COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT

TROUBLESHOOTING (TABLE 7)

Table 7. Troubleshooting.

Symptom

Possible Cause

Action

Display does not come on.

Thermostat is not being powered.

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 Check temperature setpoints.

were reached. Check Installer Setup Numbers 0600 and

610; modify as needed.

The keypad is fully locked.

Check Installer Setup Number 0670 to

change keypad locked options.

Heating or cooling does not

come on.

Thermostat minimum off-time is

activated.

Wait up to five minutes for the system to

respond.

System selection not set to Heat or

Cool.

Set system Selection to correct position.

System type Selection is incorrect.

Check Installer Setup Number 0170 and

make sure correct System type is chosen.

Thermostat is calling for Heat Heating or cooling equipment is not

Heat on) or Cool (Cool on) but operating.

no heating or cooling is

running.

Check wiring.

(

Check Installer Setup Number 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 solid in the display).

Heating 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 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 thermostat and heating

equipment.

Check for 24 Vac between the heat terminal

(W) and transformer common. If voltage is

not present, check wire connection (loose or

broken) between the thermostat and the

heating equipment.

Heat pump puts out cool air in Changeover Valve (Installer Setup

the heat mode and warm air in Number 0190) is not configured to

Set Changeover Valve (Installer Setup

Number 0190) to match the changeover

the cool mode.

match the changeover required by the required by the installed heat pump.

installed heat pump.

Both the heating and cooling The heating equipment is not a heat

equipment are running at the pump but the System Type (Installer

Set System Type (Installer Setup Number

0170) to match the installed heating and/or

cooling equipment.

same time.

Setup Number 0170) is set to Heat

Pump.

Heating and cooling wires are shorted Separate the shorted heating and cooling

together.

wires.

Cooling does not turn on (Cool Cooling equipment failure.

On is 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 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 thermostat and cooling

equipment.

Check for 24 Vac between the cool terminal

(Y) and transformer common. If voltage is not

present, check the wire connection (loose or

broken) between the thermostat and the

cooling equipment.

62-3070—03

TB8220U COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT

Table 7. Troubleshooting. (Continued)

Symptom

Fan does not turn on in a call Fan Control in Heating is set to Gas or Set Fan Control in Heating to Electric

for heat (electric furnace). Oil Furnace (Setting 0180). Furnace (Setting 0180).

Heating equipment is running Heating equipment is not a heat pump Set System Type (Installer Setup Number

Possible Cause

Action

in the cool mode.

but System Type (Installer Setup

Number 0170) is set to Heat Pump.

0170) to match the installed heating and/or

cooling equipment.

Heating equipment does not

turn off and heat temperature but System Type (Installer Setup

setting is set below room

temperature (Heat On is not in

the display).

Heating equipment is not a heat pump Set System Type (Installer Setup Number

0170) to match the installed heating and/or

cooling equipment.

Number 0170) is set to Heat Pump.

Cannot set the system setting System Type (Installer Setup Number Set System Type (Installer Setup Number

to Heat.

0170) is set to Cool Only.

0170) to match the installed heating and/or

cooling equipment.

Cannot set the system setting System Type (Installer Setup Number Set System Type (Installer Setup Number

to Cool. 0170) is set to Heat Only or Heat Only 0170) to match the installed heating and/or

with Fan. cooling equipment.

Heat On is not in the display. System setting is not set to Heat and/or Set the system setting to Heat and set the

temperature setting is not set above

room temperature.

temperature setting above the room

temperature.

Cool On is not in the display.

Wait is in the display.

System setting is not set to Cool and/or Set the system setting to Cool and set the

the temperature setting is not set below temperature setting below the room

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.

62-3070—03

TB8220U COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT

SPECIFICATIONS

Electrical Ratings:

Thermostat Dimensions: 3-3/4 in. (95 mm) high x 6 in.

152 mm) wide x 1-3/8in. (35 mm) deep.

(

Voltage

(50/60 Hz)

Running

Current

Terminal

W (Heating)

Y (Cooling)

G (Fan)

Accessories:

20 - 30 Vac

0.02 - 1.0A

0.02 - 0.60A

0.02 - 1.0A

C7089U Outdoor Sensor: 10K ohm NTC.

C7189U Remote Indoor Sensor: 10K ohm NTC.

C7772 Flush-Mount Remote Indoor Sensor:

0K ohm NTC.

T7770A1006 Wall-Mount Remote Indoor Sensor:

0K ohm NTC.

T7770A3002 Wall-Mount Remote Indoor Sensor:

0K ohm NTC.

A (Economizer/TOD) 20 - 30 Vac

Temperature Setting Range:

Heating: 40°F to 90°F (4.5°C to 32°C).

Cooling: 50°F to 99°F (10°C to 37°C).

Perchlorate Material

This thermostat contains a Lithium battery which may

contain Perchlorate material.

Operating Ambient Temperature:

0°F to 120°F (-18°C to 49°C).

Shipping Temperature:

30°F to 150°F (-34.4°C to 65.6°C).

The following statement is required:

Perchlorate Material—special handling may apply.

See www.dtsc.ca.gov/hazardouswaste/perchlorate

Operating Relative Humidity (Non-condensing):

% to 90%.

Automation and Control Solutions

Honeywell International Inc.

Honeywell Limited-Honeywell Limitée

1985 Douglas Drive North

35 Dynamic Drive

Golden Valley, MN 55422

customer.honeywell.com

Toronto, Ontario M1V 4Z9

U.S. Registered Trademark

2008 Honeywell International Inc.

62-3070—03 M.S. Rev. 01-08