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 ................................................................................

Installer Setup ................................................................... 12

Operation........................................................................... 17

Troubleshooting (Table 11)................................................ 22

3-2635-03

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.

(

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 - 0.60A

0.02 - 1.0A

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:

Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).

Honeywell Customer Care

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.

3-2635—03

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

LEVEL

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

IN.

(

127 MM)

Cover Plate:

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.

32003796-001 Cover Plate: See Fig. 2.

IN.

(

152 MM)

LARGE COVER PLATE

THERMOSTAT

AND WALLPLATE

BRACKET FOR MOUNTING ON JUNCTION BOX NOT INCLUDED

WITH COVER PLATE

USE BOTTOM MOUNTING HOLES.

M13669

(152)

-3/8

35)

(

Fig. 2. 32003796-001 Cover Plate dimensions in in. (mm).

-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).

63-2635—03

TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT

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.

-3/8 (60)

5/16

23)

(

-3/16 (80)

M22936

Fig. 4. T7770A dimensions in in. (mm).

YES

5 FEET

1.5 METERS]

[

-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.

(

-1/8

29)

-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

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...

Read these instructions carefully. Failure to follow them

could damage the product or cause a

hazardous condition.

THERMOSTAT

M22267

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.

3-2635—03

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:

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.

—

specific equipment applications.

Select set of terminal identifications that correspond to

your system type (conventional or heat pump). See Fig. 9.

HEAT PUMP

CONVENTIONAL

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.

O/B

WALL

WIRES THROUGH WALL

AND WIRE SLOT

SCREW

WALL

ANCHORS (2)

TERMINALS

M13663

FACTORY INSTALLED JUMPER.

Fig. 9. Terminal identifications for system type.

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.

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.

prevent drafts from affecting the thermostat.

—

Use 18 gauge thermostat wire. Shielded cable is not

required.

63-2635—03

TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT

Table 5. Terminal Designation Descriptions.

Terminal

WALLPLATE

WIRE

Designation

Description

Power for cooling—connect to secondary side

(see Note 1) of cooling system transformer.

Power for heating—connect to secondary side

(see Note 1) of heating system transformer.

Compressor output.

Common wire from secondary side of cooling

(see Note 2) system transformer.

Heat relay.

Fan relay.

O/B

Second stage heat relay.

Second stage cooling.

Changeover valve for heat pumps.

WALL OPENING

SHADED AREA

M22266

(see Note 3)

(

Economizer/Time-Of-Day (TOD) output—

see Note 4) powered via R terminal.

Optional outdoor or indoor remote sensor.

Fig. 11. Restrict wires to shaded area of wire hole.

Table 4. Wiring Diagrams.

(See Note 5)

Wallplate Terminal Wiring Diagram

System Type

Identifications

Figure

(See Note 5)

Standard Heat/Cool Conventional

12, 13

Heat Only

Cool only

Conventional

NOTES:

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.

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

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

(

Multiple T7770A

Sensors

—

Multiple C7189U

Sensors

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.

3-2635—03

TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT

Conventional System Wiring

HOT)

(HOT)

(

24 VAC

4 VAC

HEAT RELAY

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

HEAT RELAY

COMPRESSOR CONTACTOR

FAN RELAY

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

ECONOMIZER

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

ECONOMIZER

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

FACTORY INSTALLED JUMPER.

WHEN USING BATTERIES, THE 24V COMMON CONNECTION IS

OPTIONAL.

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.

(

HOT)

(

24 VAC

4 VAC

COOLING

TRANSFORMER

COMPRESSOR CONTACTOR

FAN RELAY

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

FAN RELAY

COMPRESSOR CONTACTOR

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

ECONOMIZER

(

HOT)

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

4 VAC

ECONOMIZER

HEAT RELAY

FACTORY INSTALLED JUMPER.

HEATING

TRANSFORMER

WHEN USING BATTERIES, THE 24V COMMON CONNECTION

IS OPTIONAL.

M23015

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

Fig. 15. Typical hookup of cool-only system.

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.

63-2635—03

TB7220 COMMERCIALPRO™ PROGRAMMABLE THERMOSTAT

(

HOT)

(

HOT)

4 VAC

COOLING