Honeywell TH8110, TH8320, TH8321 User Manual

68-0280-01

VisionPRO™ 8000 Touchscreen

Programmable Thermostat

APPLICATION

The VisionPRO 8000 Touchscreen Programmable Thermostat is an effortless, 7-Day programmable thermostat that provides universal system compatibility, precise comfort control and is easy-to-program.

PRODUCT DATA

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.

• Touchscreen interaction

• 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/check reminders let you know when to service or replace filters or batteries.

• Various Hold options allow you to override the program schedule, as desired.

• Speedy same-schedule programming—no need to copy multiple days.

• Armchair programming allows you to remove the thermostat from the wall for programming.

• Programmable fan offers increased air quality when combined with a Honeywell whole-house air cleaner.

The TH8110 Thermostats provide temperature control for gas, oil, electric and heat pumps for 1 heat, 1 cool systems.

The TH8320 Thermostats provide temperature control for gas, oil, electric and heat pumps for up to 3 heat, 2 cool systems including dual fuel operation.

The TH8321 Thermostats provide temperature control for gas, oil, electric and heat pumps for up to 3 heat, 2 cool systems including dual fuel operation plus dehumidification control.

Contents

Application/Features..........................................................1

Specifications/Ordering Information ..................................2

Installation .........................................................................4

Wiring ................................................................................5

Power the Thermostat .......................................................11

Installer Setup ...................................................................15

Installer System Test .........................................................20

Operation...........................................................................21

Programming.....................................................................23

Troubleshooting.................................................................38

VisionPRO

8000 Touchscreen Programmable Thermostat

SPECIFICATIONS

Thermostat Description:

Feature Description

Powering methods • Battery only

• Common wire only

• Common wire with battery backup

System types (up to 3 heat/2 cool or up to 1heat/1cool, depending on model)

Changeover Manual or Auto changeover selectable

System setting Heat-Off-Cool-Auto (Em. Heat for heat

Fan setting Auto-On-Circ

Electrical Ratings:

Terminal Voltage (50/60 Hz) Running Current

W Heating 20 - 30 Vac .02 - 1.0A

W Heating (Powerpile)

Y Cooling 20 - 30 Vac .02 - 1.0A

G Fan 20 - 30 Vac .02 - .60A

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).

Operating Ambient Temperature:

TH8000 VisionPRO™ Thermostats: 0°F to 120°F

(-18°C to 49°C). C7089U: -40°F to 120°F (-40°C to 49°C). C7189U: 45°F to 88°F (7.2°C to 32°C).

• Gas, oil or electric heat with air conditioning

• Warm air, hot water, high-efficiency furnaces, heat pumps, steam and gravity

• Heat only—includes power to open and power to close zone valves (series 20) and normally-open zone valves

• Heat only with fan

• Cool only

• 750 mV heating systems

pumps)

750 mV dc 100 mA dc

Shipping Temperature:

TH8000 VisionPRO™ Thermostats: -30 °F to 150 °F

(-34.4°C to 65.6°C).

Operating Relative Humidity (Non-condensing):

TH8000 VisionPRO Thermostats: 5% to 90%. C7089U: 5% to 95%. C7189U: 5% to 95%.

Humidity Setting Range (TH8321 models only):

Cooling: 40% to 80% RH.

Humidity Display Range (TH8321 models only):

0% to 99%.

Cycle Rates (at 50% Load):

Heating: Selectable 1 - 12 cycles per hour. Cooling: Selectable 1 - 6 cycles per hour.

Finish:

TH8000 VisionPRO™ Thermostats: Premier White® color. C7189U Wall Mount Remote Indoor Sensor: Premier White®

color.

Clock Accuracy: +/- 1 minute per month.

Batteries:

Three replaceable AAA alkaline batteries: Power thermostats

when 24 Vac common is not used. Non-replaceable lithium battery with ten-year life under normal use to hold calendar and time settings. Alkaline batteries keep calendar and time after lithium battery is no longer functional.

Resistance Characteristics of Remote Sensors:

C7089U Outdoor Sensor: Negative temperature coefficient

(NTC) means that resistance decreases as the temperature increases. See Table 13 in the Operation section for sensor resistance characteristics.

C7189U Remote Indoor Sensor: Negative temperature

coefficient (NTC), means that resistance decreases as the temperature increases. See Table 14 in the Operation section for sensor resistance characteristics.

Cool Indication:

TH8000 VisionPRO™ Touchscreen Thermostats show "Cool

On" on the screen when Cool is activated.

Heat Indication:

TH8000 VisionPRO™ Touchscreen Thermostats show “Heat

On” on the screen when Heat is activated.

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).

2. Honeywell Customer Care

1985 Douglas Drive North

Minneapolis, Minnesota 55422-4386 In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Toronto, 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.

68-0280—01 2

Auxiliary Heat Indication:

M22421

6 (152)

THERMOSTAT

4-9/16

(116)

3-3/8 (86)

WALLPLATE

3-3/8 (86)

THERMOSTAT

AND WALLPLATE

1-3/8 (35)

TH8000 VisionPRO™ Touchscreen Thermostats show “Aux.

Heat On” on the screen when Auxiliary Heat is activated.

Emergency Heat Indication:

TH8000 VisionPRO™ Touchscreen Thermostats show “Heat

On” on the screen when Emergency Heat is activated and the System mode is in the Em. Heat position.

Calibration:

C7089U, C7189U and TH8000 VisionPRO™ Touchscreen

Thermostats are factory-calibrated and require no field calibration.

Interstage Differential:

TH8000 VisionPRO™ Touchscreen Thermostats operate with

droopless control. Once the thermostat senses that 1st stage is running at 90% capacity, the thermostat energizes 2nd stage.

Nomenclature:

VisionPRO

8000 Touchscreen Programmable Thermostat

Series

VisionPRO™ 8000 Touchscreen

System

Stages Application

11 - 1H/1C 32 - 3H/2C

0 - Standard 1 - Humidity

Sensor

Power and System

Changeover

U - Universal (Auto

changeover and/or manual changeover) dual powered, system flexibility, schedule flexibility.

Mounting Means:

TH8000 VisionPRO™ Touchscreen Thermostat: Mounts

directly on the wall in the living space using mounting screws and anchors provided. Fits a vertical or horizontal 2 x 4 in. junction box.

C7089U Outdoor Sensor: Mounts outside of living space with

mounting clip and screws provided.

C7189U Remote Indoor Sensor: Mounts directly on the wall

using mounting screws and anchors provided. Fits a vertical 2 x 4 in. junction box.

Cover Plate:

32003796-001 Cover Plate is used to cover marks left on the

wall by the old thermostat.

Dimensions:

TH8000 Touchscreen Thermostat: see Fig. 1. C7089U Outdoor Sensor Mounting Clip: see Fig. 2. 32003796-001 Cover Plate: see Fig. 3. C7189U Remote Indoor Sensor: see Fig. 4.

Fig. 1. TH8000 Touchscreen Thermostat

dimensions in in. (mm).

1-1/2 (38)

M4488

Fig. 2. C7089U Outdoor Sensor Mounting Clip

dimensions in in. (mm).

7-7/8 (200)

3-5/16 (84)

5-1/2

(140)

3-5/16

(84)

M22139

Fig. 3. 32003796-001 Cover Plate dimensions in in. (mm).

3 68-0280—01

VisionPRO

CAUTION

5 FEET

[1.5 METERS]

YES

M19925

8000 Touchscreen Programmable Thermostat

4-5/8 (117)

2-3/4 (70)

M4465

FRONT VIEW SIDE VIEW FRONT VIEW (COVER OFF)

Fig. 4. C7189U Remote Indoor Sensor dimensions in in. (mm).

INSTALLATION

When Installing this Product...

1. Read these instructions carefully. Failure to follow the instructions can damage the product or cause a hazardous condition.

2. Check the ratings given in the instructions to make sure the product is suitable for your application.

3. Installer must be a trained, experienced service technician.

4. After completing installation, use these instructions to check out the product operation.

Selecting Location

Install the thermostat about 5 ft. (1.5m) above the floor in an area with good air circulation at average temperature. See Fig. 5.

4-5/8

1-1/8

(29)

(117)

3-1/4

(83)

2-3/4 (70)

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

Installing Wallplate

Electrical Hazard. Can cause electrical shock or equipment damage.

Disconnect power before wiring.

The thermostat can be mounted horizontally on the wall or on a 4 in. x 2 in. (101.6 mm x 50.8 mm) wiring box.

68-0280—01 4

Fig. 5. Selecting thermostat location.

1. Position and level the wallplate (for appearance only).

2. Use a pencil to mark the mounting holes.

3. Remove the wallplate from the wall and, if drywall, drill

two 3/16-in. holes in the wall, as marked. For firmer material such as plaster, drill two 7/32-in. holes. Gently tap anchors (provided) into the drilled holes until flush with the wall.

4. Position the wallplate over the holes, pulling wires

WALL

MOUNTING HOLES

M19916

MOUNTING SCREWS (2)

WALL ANCHORS (2)

WIRES THROUGH WALL AND WIRE SLOT

UMP

M19917

through the wiring opening. See Fig. 6.

5. Insert the mounting screws into the holes and tighten.

VisionPRO

8000 Touchscreen Programmable Thermostat

Table 1. Selecting Terminal Identifications for

System Type.

Fig. 6. Mounting wallplate.

WIRING (FIG. 9 - 21)

All wiring must comply with local electrical codes and ordinances.

1. Select set of terminal identifications (Table 1) that corresponds with system type (conventional or heat pump in Fig. 7).

2. Loosen the screws for the appropriate system type selected; see Table 1. See Table 2 for terminal designation descriptions. Insert wires in the terminal block under the loosened screw. See Fig. 8.

3. Securely tighten each screw.

4. Push excess wire back into the hole.

5. Plug the hole with nonflammable insulation to prevent

drafts from affecting the thermostat.

6. See Fig. 9 through 21 for typical wiring hookups.

Wiring

Diagram

Reference

System Type

Wallplate

Ter min al

Identifications

Standard Heat/Cool Conventional 9, 10

Heat Only Conventional 11

Heat Only with Fan Conventional 12

Heat Only (Series 20)

Conventional 13 Power to open and power to close zone valves

Normally Open Zone

Conventional 14 Valves—Heat Only

Cool Only Conventional 15

Standard Multistage up

Conventional 16, 17 to 2 Heat/2 Cool

Heat Pump with No

Heat Pump 18, 19 Auxiliary Heat

Heat Pump with

Heat Pump 20, 21 Auxiliary Heat

EAT P NVENTIONA

AUX

REW TERMINAL

O/B

M19951

Fig. 7. Selecting terminal identifications for

system type.

Fig. 8. Inserting wires in terminal block.

IMPORTANT

Use 18 gauge thermostat wire.

5 68-0280—01

VisionPRO

8000 Touchscreen Programmable Thermostat

Table 2. Terminal Designation Descriptions.

Terminal

Designation Description

Rc (see Note 1)Power for cooling--connect to

secondary side of cooling system transformer

R (see Note 1) Power for heating--connect to

secondary side of heating system transformer

C (see Note 2) Common wire from secondary side of

cooling system transformer

W Heat relay

Y Compressor contactor

GFan relay

Y2 Second stage cooling

W2 Second stage heat relay

O/B (see Note 3)Changeover valve for heat pump

systems

AUX Auxiliary heat relay for heat pump

systems

E Emergency heat relay for heat pump

systems

L (see note 4) Equipment monitor for heat pump

systems

S1, S2 Optional outdoor or indoor remote

sensor

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.

2. Common wire is optional when thermostat is used with batteries.

3. If thermostat is configured for a heat pump system in the Installer Setup, configure changeover valve for cool (O-factory setting) or heat (B).

4. L terminal is an input (system monitor) when the System mode is in the Heat, Off, Cool or Auto position. L terminal is a 24 Vac output when System mode is Emergency Heat. Must connect the 24 Vac Common when using the L terminal. See LED Indication section for more details.

CONVENTIONAL

W2 S1

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

FACTORY INSTALLED JUMPER.

OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE

ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.

Y G C

FAN

RELAY

COMPRESSOR

CONTACTOR

HEAT RELAY

OPTIONAL

24 VAC

COMMON

CONNECTION

M19895

Fig. 9. Typical hookup of conventional single-stage heat

and cool system with single transformer

(1H/1C conventional).

CONVENTIONAL

W2 S1

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

REMOVE FACTORY INSTALLED JUMPER.

OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.

Y G C

FAN

RELAY

COMPRESSOR

CONTACTOR

HEAT RELAY

OPTIONAL

24 VAC

COMMON

CONNECTION

M19896

Fig. 10. Typical hookup of conventional single-stage heat

and cool system with two transformers

(1H/1C conventional).

68-0280—01 6

VisionPRO

M19897

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

HEAT RELAY

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

FACTORY INSTALLED JUMPER.

OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.

OPTIONAL

24 VAC

COMMON

CONNECTION

Y G C

CONVENTIONAL

M19898

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

HEAT RELAY

FAN

RELAY

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

FACTORY INSTALLED JUMPER.

OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.

OPTIONAL

24 VAC

COMMON

CONNECTION

Y G C

CONVENTIONAL

8000 Touchscreen Programmable Thermostat

CONVENTIONAL

Fig. 11. Typical hookup of heat-only system

(1 H conventional).

W2 S1

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

FACTORY INSTALLED JUMPER.

OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.

Y G C

W BR

SERIES 20

MOTOR OR

VALVE

M19899

Fig. 13. Typical hookup of heat only power to open and

power to close zone valve (Series 20) system.

CONVENTIONAL

Fig. 12. Typical hookup of heat only system with fan

(1H conventional).

W2 S1

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

FACTORY INSTALLED JUMPER.

OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE

ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.

CONFIGURE SYSTEM TYPE TO HEAT ONLY WITH NORMALLY OPEN

ZONE VALVES IN INSTALLER SETUP.

Y G C

CONNECTION

NORMALLY OPEN

ALVE

ZONE V

OPTIONAL

24 VAC

COMMON

M22422

Fig. 14. Typical hookup of heat only system with normally

open zone valves.

7 68-0280—01

VisionPRO

M19900

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

FAN

RELAY

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

FACTORY INSTALLED JUMPER.

OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.

OPTIONAL

24 VAC

COMMON

CONNECTION

Y G C

CONVENTIONAL

COMPRESSOR

CONTACTOR

M22438B

HEAT RELAY 2

COOL RELAY 2

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

FAN

RELAY

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

FACTORY INSTALLED JUMPER.

OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.

OPTIONAL

24 VAC

COMMON

CONNECTION

MUST COME

FROM THE

COOLING

TRANSFORMER.

Y G

CONVENTIONAL

COOL RELAY 1

HEAT RELAY 1

8000 Touchscreen Programmable Thermostat

CONVENTIONAL

Fig. 15. Typical hookup of cool only system

(1C conventional).

W2 S1

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

HEAT RELAY 2

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

FACTORY INSTALLED JUMPER.

OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE

ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.

Y G C

COOL RELAY 2

HEAT RELAY 1

CONNECTION

MUST COME

TRANSFORMER.

FAN

RELAY

COOL RELAY 1

OPTIONAL

24 VAC

COMMON

FROM THE

COOLING

M19902B

Fig. 17. Typical hookup of conventional multistage

two-stage heating and two-stage cooling in a

two-transformer system (2H/2C, 2H/1C or

1H/2C conventional).

Fig. 16. Typical hookup of conventional multistage

two-stage heating and two-stage cooling in a

68-0280—01 8

single-transformer system

(2H/2C, 2H/1C or 1H/2C conventional).

VisionPRO

COMPRESSOR 1COMPRESSOR 2

M19904

CHANGEOVER

VALV E

FAN RELAY

OPTIONAL 24 VAC

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

FACTORY INSTALLED JUMPER.

MUST CONNECT THE 24 VAC COMMON WHEN USING L. THE TERMINAL IS SHOWN AS EQUIPMENT MONITOR, CAN ALSO BE USED AS A 24 VAC OUTPUT. SEE "HEAT PUMP LED" SECTION FOR MORE INFORMATION.

"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.

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

8000 Touchscreen Programmable Thermostat

EAT PUM

OPTIONAL 24 VAC MMON CONNECTI

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

FACTORY INSTALLED JUMPER.

"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.

CHANGEOVER

VALV E

FAN RELAY

COMPRESSOR

RELAY

M19903B

Fig. 18. Typical hookup of single-stage heat pump with no auxiliary/backup heat (1H/1C heat pump).

EAT PUM

Fig. 19. Typical hookup of multistage heat pump with no auxiliary/backup heat (2H/2C heat pump).

9 68-0280—01

MMON CONNECTI

VisionPRO

COMPRESSOR

RELAY

M19905

CHANGEOVER

VALV E

FAN RELAY

HEAT 2 RELAY

(AUXILIARY HEAT)

OPTIONAL 24 VAC

EQUIPMENT

MONITOR

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

FACTORY INSTALLED JUMPER.

OUTDOOR SENSOR REQUIRED IN SYSTEM WITH FOSSIL FUEL BACKUP HEAT THAT IS NOT USING AN EXTERNAL FOSSIL FUEL KIT.

OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.

MUST CONNECT THE 24 VAC COMMON WHEN USING L. THE TERMINAL IS SHOWN AS EQUIPMENT MONITOR, CAN ALSO BE USED AS A 24 VAC OUTPUT. SEE "HEAT PUMP LED" SECTION FOR MORE INFORMATION.

"O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B" IN THE INSTALLER SETUP.

EMERGENCY

HEAT RELAY

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

COMPRESSOR 2 COMPRESSOR 1

M19906

CHANGEOVER

VALV E

FAN RELAY

HEAT 2 RELAY

(AUXILIARY HEAT)

OPTIONAL 24 VAC

EQUIPMENT

MONITOR

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

FACTORY INSTALLED JUMPER.

OUTDOOR SENSOR REQUIRED IN SYSTEM WITH FOSSIL FUEL BACKUP HEAT THAT IS NOT USING AN EXTERNAL FOSSIL FUEL KIT.

OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.

MUST CONNECT THE 24 VAC COMMON WHEN USING L. THE TERMINAL IS SHOWN AS EQUIPMENT MONITOR, CAN ALSO BE USED AS A 24 VAC OUTPUT. SEE "HEAT PUMP LED" SECTION FOR MORE INFORMATION.

"O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B" IN THE INSTALLER SETUP.

EMERGENCY

HEAT RELAY

OUTDOOR/INDOOR

TEMPERATURE

SENSOR

8000 Touchscreen Programmable Thermostat

EAT PUM

MMON CONNECTI

Fig. 20. Typical hookup of single-stage heat pump with auxiliary/backup heat (2H/1C heat pump).

EAT PUM

68-0280—01 10

Fig. 21. Typical hookup of multistage heat pump with auxiliary/backup heat (3H/2C heat pump).

MMON CONNECTI

POWER THE THERMOSTAT

M22213

PINS ON

BACK OF

THERMOSTAT

WALLPLATE

TERMINAL SCREW BLOCK

VisionPRO

8000 Touchscreen Programmable Thermostat

You can choose from three methods to power the thermostat:

• Batteries only (AAA alkaline).

• 24 Vac common wire only.

• 24 Vac common wire with battery backup (AAA alkaline).

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.

• 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.

Installing Batteries

1. Install three AAA alkaline batteries on the back of the thermostat as marked on the thermostat. See Fig. 22.

2. Locate and remove the tab labeled, Remove, in the lower left corner on the thermostat back. See Fig. 23.

REMOVE TAB

INSTALLATION

REMOVE DURING

INSTALLATION

REMOVE DURING

Fig. 23. Remove tab labeled, Remove, on

thermostat back.

Mount Thermostat to Wallplate

1. Align the terminal screw blocks with the pins on the back of the thermostat. Push the thermostat straight onto the wallplate until it snaps into place. See Fig 24.

M19920

BATTERIES (3)

Fig. 22. Installing batteries.

M19918

Fig. 24. Mount thermostat to wallplate.

11 68-0280—01

VisionPRO

CAUTION

M7514

8000 Touchscreen Programmable Thermostat

Locate and Mount C7089U Outdoor Temperature Sensor (Optional)

Mount the sensor where (see Fig. 25):

• cannot tamper with settings.

• there is good air circulation.

• it can measure true outdoor ambient temperature.

• surface is flat.

• wire distance between C7089 and thermostat is less than 200 feet.

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.

• where snow, ice or debris can cover it.

Use the following steps to mount the sensor:

1. Remove the sensor from the mounting clip.

2. Mark the area on the location selected for mounting the

sensor mounting clip.

3. Mount the clip.

IMPORTANT

Erratic temperature readings from a sensor can occur as a result of any of the wiring practices described below. Avoid these practices to assure correct operation. Use shielded cable to reduce interference if rerouting sensor wiring is not possible.

— Be sure wires have a cable separate from the

thermostat cable.

— Do not route temperature sensor wiring with building

power wiring, next to control contactors or near light dimming circuits, electric motors or welding

equipment. — Avoid poor wiring connections. — Avoid intermittent or missing building earth ground.

Electrical Shock Hazard. Can cause electrical shock or equipment damage.

Disconnect power supply before connecting wiring.

Wiring must comply with applicable codes, ordinances and regulations:

1. Wire C7089 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 C7089 location. a. Using color-coded, 18-gauge thermostat wire is

recommended. For example of general wiring of C7089, see Fig. 26.

b. Pigtail wiring can be used.

2. Mount C7089 in its mounting clip.

3. Plug wiring hole using nonhardening caulk or putty.

Fig. 25. Typical locations for C7089U Outdoor Sensor.

Wire C7089U Outdoor Sensor

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. Use shielded cable to reduce interference when rerouting is not possible.

C7089

USE APPROPRIATE MOUNTING MEANS FOR THE TYPE OF STRUCTURE.

PLUG WIRING HOLE WITH NON-HARDENING CAULK OR PUTTY.

WIRING HOLE THROUGH

STRUCTURE

M19970

Fig. 26. Wire C7089 Outdoor Sensor to the thermostat.

68-0280—01 12

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