Honeywell T8600D, T8602D, T8601D User Manual

T8600D, T8601D and T8602D

68-0164-1

Chronotherm

APPLICATION

The T8600, T8601 and T8602 Chronotherm® IV Deluxe Programmable Thermostats provide electronic control of 24 Vac single-stage heating and cooling systems.

T8600/T8601/T8602 FEATURES AND BENEFITS

• Full seven-day program capability; different schedules and temperature setpoints may be selected for everyday to match the homeowner’s flexible schedule.

• Copy key makes programming easier and faster for the installer and homeowner.

•Daylight Savings Time (DST) key for quick change in and out of Daylight Savings Time.

• Models available with programmable fan operation for added homeowner comfort.

• Easy temporary temperature setpoint changes for current period, vacation hold (1 to 255 days) or indefinite hold adds to the homeowner comfort and energy savings.

• Frequently used keys are located by the Liquid Crystal Display (LCD) for quick and easy access to information.

• Attractive styling complements any decor to the homeowner’s delight.

• Back lighting the large display makes the LCD very easy to read.

IV Deluxe Programmable

Thermostats

PRODUCT DATA

• Models available with outdoor temperature sensor capability for homeowner convenience. The sensor is also more accurate than a thermometer.

• Configurable features allows one model to be used to replace many different models (less inventory, no longer need to carry separate models to get these features). — °F or °C temperature display; —Automatic or manual changeover; — Electric or conventional heat fan operation — Adjustable heating cycle rate.

• Minimum off time for cooling compressors and heat pumps protects the equipment and extends the equipment life.

• Easy installation, setup and system test saves installer time and increases productivity.

• Self-test simplifies troubleshooting and saves time by overriding the time delays.

• Adaptive Intelligent Recovery™ control brings the room temperature to temperature setpoint at the programmed time, maximizing comfort and energy savings.

• Setpoints are permanently held in memory (no batteries used) and retained during power outages for increased installer and homeowner convenience.

•Power stealing, hardwired and battery powered models available for virtually all equipment and application needs.

• Universal Versaguard™ Thermostat guards available for added security.

Contents

Application............................................................................. 1

T8600/T8601/T8602 Features and Benefits ......................... 1

Specifications ........................................................................ 2

Ordering Information ............................................................. 2

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

Wiring .................................................................................... 4

Settings ................................................................................. 6

Installer Setup ....................................................................... 7

Installer Self-Test................................................................. 10

Thermostat Information ....................................................... 11

Programming....................................................................... 11

Operation ............................................................................ 16

Troubleshooting Guide ........................................................ 17

Cross Reference ................................................................. 19

Wiring Diagrams (Fig. 15-20) .............................................. 24

T8600D, T8601D AND T8602D CHRONOTHERM ® IV DELUXE PROGRAMMABLE THERMOSTATS

SPECIFICATIONS

IMPORTANT

The specifications given in this publication do not include normal manufacturing tolerances. Therefore, this unit might not exactly match the listed specifications. This product is tested and calibrated under closely controlled conditions, and some minor differences in performance can be expected if those conditions are changed.

Thermostat Models

T8600, T8601 and T8602 Thermostats provide features listed in Table 1.

Electrical Rating (Nominal Range):

24 Vac, 50/60 Hz. 20 to 30 Vac, 50/60 Hz.

Batteries:

Only T8602 models require batteries.

Loss of Power:

The thermostat will maintain programmed times and temperatures for the life of the product. The clock and day information is retained for a minimum of thirty minutes.

Table 1. Thermostat Features.

System Current Load Ratings:

6 VA maximum at 30 Vac, 50/60 Hz.

Output Relay Load Rating:

See Table 2.

Temperature:

Ratings:

Operating Ambient: 40°F to 110°F (4°C to 43°C). Shipping: -30°F to +150°F (-34°C to +65°C).

Display Accuracy: ±1°F (±0.5°C).

Setpoint:

Range:

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

Cooling: 45° F to 99°F (7°C to 35°C) Differential: 3°F (1.5°C). Default Settings: see Table 3.

Minimum Stage Operation Time:

Minimum Off (Heat and Cool ): factory setting 5 minutes; option 0 to 5 minutes.

Humidity Ratings:

5% to 90% RH, noncondensing.

Clock Accuracy:

+1 minute per month.

System

System Changeover

T8600 (powered by either the heating or cooling system)

D Heat-Cool Automatic Heat-Off-Cool-Auto On-Auto System and fan selections are done by keyboard.

T8601 (powered by common wire to supply power)

D Heat-Cool Automatic Heat-Off-Cool-Auto On-Auto System and fan selections are done by keyboard.

T8602 (powered by batteries)

D Heat-Cool Automatic Heat-Off-Cool-Auto On-Auto System and fan selections are done by keyboard.

Selection

Fan

Selection Comments

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 Home and Building Control Sales Office (check white pages of your phone directory).

2. Home and Building Control Customer Logistics Honeywell Inc., 1885 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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T8600D, T8601D AND T8602D CHRONOTHERM ® IV DELUXE PROGRAMMABLE THERMOSTATS

Table 2. Maximum Amps at 30 Vac.

Relay Running (A) Inrush (A)

Fan 0.5 2.5 Heat 1.5 3.5 Cool 1.5 7.5

Table 3. Default Setpoints.

Period Time

Setpoint

Wake 6:00 AM 70°F

(21°C)

Leave 8:00 AM 62°F

(16.5°C)

Return 6:00 PM 70°F

(21°C)

Sleep 10:00 PM 62°F

(16.5°C)

Heat

Cool

Setpoint

78°F

(25.5°C)

85°F

(29.5°C)

78°F

(25.5°C)

82°F

(28°C)

Fan

Setting

Auto

Finish:

Taupe color.

Dimensions:

See Fig. 1.

Mounting Means:

The thermostat mounts on a wallplate. The wallplate mounts horizontally on a wall or outlet box with two no. 6 x 32 screws (included).

Accessories:

C7089B Outdoor Temperature Sensors (69-1020). Universal Versaguard™ Thermostat guards.

RECYCLING NOTICE

If this control is replacing a control that contains mercury in a sealed tube, do not place your old control in the trash.

Contact your local waste management authority for instructions regarding recycling and the proper disposal of the old thermostat.

3-5/8 (92)

2-3/4 (70)

3/8 (10)

1-13/16

(46)

6-1/16 (154)

3-3/4

Fig. 1. Dimensions of thermostat in in. (mm).

3-1/2

(89)

(95)

1-9/16

(40)

1/2 (13)

M10359

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T8600D, T8601D AND T8602D CHRONOTHERM ® IV DELUXE PROGRAMMABLE THERMOSTATS

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 and on the product 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.

Location

Install the thermostat about 5 ft (1.5m) above the floor in an area with good air circulation at average temperature. See Fig. 2.

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.

Wallplate Installation

The thermostat can be mounted horizontally on the wall or on a 2 in. x 4 in. wiring box. Position wallplate horizontally on the wall or on a 2 in. x 4 in. wiring box.

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

The thermostat will function properly even when not level.

2. Use a pencil to mark the mounting holes. See Fig. 3.

3. Remove the wallplate from the wall and drill two 3/16

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

4. Position the wallplate over the holes, pulling wires

through the wiring opening.

5. Loosely insert the mounting screws into the holes.

6. Tighten mounting screws.

WIRING

All wiring must comply with local electrical codes and ordinances. Follow equipment manufacturer wiring instructions when available. Refer to Fig. 15 through 20 for typical hookups. A letter code is located near each terminal for identification. Refer to Table 4 for terminal designations.

CAUTION

Disconnect power before wiring to prevent electrical shock or equipment damage.

1. Loosen the terminal screws on the wallplate and

connect the system wires. See Fig. 4

68-0164—1

YES

5 FEET

[1.5 METERS]

Fig. 2. Typical location of thermostat.

M10106

T8600D, T8601D AND T8602D CHRONOTHERM ® IV DELUXE PROGRAMMABLE THERMOSTATS

WALL

WIRES THROUGH WALL

WALL ANCHORS (2)

FOR STRAIGHT INSERTION STRIP 5/16 IN. (8 MM).

IMPORTANT

Use 18 gauge, color-coded thermostat cable for proper wiring.

Fig. 3. Mounting the wallplate.

MOUNTING HOLES

MOUNTING SCREWS

M15044

FOR WRAPAROUND INSERTION STRIP 7/16 IN. (11 MM).

Fig. 4. Proper wiring technique.

Mounting Thermostat Wallplate

The thermostat mounts on the wallplate after they are installed.

1. Engage tabs at the top of thermostat and wallplate. See

Fig. 5.

2. Press lower edge of case to latch.

NOTE: To remove the thermostat from the wall, first pull out

at the bottom of the thermostat; then remove the top.

M4826

2. Securely tighten each terminal screw.

3. Push excess wire back into the hole.

4. Plug the hole with nonflammable insulation to prevent

drafts from affecting the thermostat.

Table 4. Terminal Designations and Descriptions.

Standard

Terminal

Designations

Alternate

Terminal

Designations Typical Connection Function Terminal Type

B— Heating damper or changeover valve Output 24V powered contact CB

, C, X1, X2 Common Input GF Fan relay Output 24V powered contact OR Cooling damper or changeover valve Output 24V powered contact OT, OT — Outdoor temperature sensor (C7089B) Input — RV 24V system or heating transformer Input — RC — 24V cooling transformer Input — W H1, R3 Heating relay Output 24V powered contact Y C1, M Compressor contactor Output 24V powered contact

Some OEM models label the terminal for transformer common B.

68-0164—1

T8600D, T8601D AND T8602D CHRONOTHERM ® IV DELUXE PROGRAMMABLE THERMOSTATS

ENGAGE TABS AT TOP OF THERMOSTAT AND WALLPLATE.

SETTINGS

Using Thermostat Keys

The thermostat keys are used to:

• set current day and time,

• program times and setpoints for heating and cooling,

• temporarily override program temperatures,

• display present setting,

• configure Installer Setup,

• check System Test,

PRESS LOWER EDGE OF CASE TO LATCH.

• display outdoor temperature (select models),

• set the system operation,

• set the fan operation.

See Fig. 6 for the location of the keys.

System and Fan Settings

The system default setting is Heat and the fan default setting is Auto. Use the System and Fan keys to change the settings. See Fig. 7. The fan settings can be set for each program

M15043

Fig. 5. Mounting thermostat on wallplate.

period individually. The system selection is for all the program periods.

SET WAKE TIMES AND SETPOINTS

INCREASE TIME SETTING OR SCROLL FORWARD THROUGH INSTALLER SETUP AND SYSTEM TEST

SET CURRENT DAY AND TIME

RETURN TO NORMAL OPERATIONS

ENTER INDEFINITE OR TIMED HOLD MODE

SET CURRENT OR PROGRAM DAY

CHANGE BETWEEN DAYLIGHT SAVINGS AND STANDARD TIME

COPY ONE PROGRAMMED DAY TO ANOTHER DAY

Run

Program

Hold Temp

Set Current

Day/Time

Day

Daylight

Time

SET LEAVE TIMES AND SETPOINTS

SET RETURN TIMES AND SETPOINTS

Time Set Program

Wake

Heat/Cool

Settings

Copy

Leave

DECREASE TIME SETTING OR SCROLL BACKWARD THROUGH INSTALLER SETUP AND SYSTEM TEST

Return Sleep

System Fan

CHANGE BETWEEN HEATING AND COOLING SETPOINTS

INCREASE TEMPERATURE SETTING OR SCROLL FORWARD THROUGH INSTALLER SETUP OPTIONS

DECREASE TEMPERATURE SETTING OR SCROLL BACKWARD THROUGH INSTALLER SETUP OPTIONS

DISPLAY INFORMATION SUCH AS PRESENT SETTINGS AND OUTDOOR TEMPERATURE

SET SLEEP TIMES AND SETPOINTS

SELECT FAN OPERATION

SELECT SYSTEM OPERATION

M10405A

68-0164—1

Fig. 6. Key locations and descriptions.

T8600D, T8601D AND T8602D CHRONOTHERM ® IV DELUXE PROGRAMMABLE THERMOSTATS

System settings control the thermostat operation as follows:

Heat: The thermostat controls the heating. Off: Both the heating and cooling are off. Cool: The thermostat controls the cooling. Auto: The thermostat automatically changes between

heating and cooling operation, depending on the indoor temperature.

Fan settings control the system fan as follows:

On: Fan operates continuously. Auto: Fan operates with equipment.

Run

Program

Hold Temp

Time Set Program

Set Current

Day/Time

Day

Daylight

Copy

Time

Heat/Cool

Settings

Leave

Wake

Return

System Fan

Sleep

M15042

System

Fan

Fig. 7. Thermostat System and Fan key locations.

NOTE: Always press the keys with your fingertip or similar

blunt tool. Sharp instruments like a pen or pencil point can damage the keyboard.

The Installer Setup is used to customize the thermostat to specific systems. Some of the options include temperature display, changeover and outdoor temperature display. Installer Setup numbers are listed in Table 6. The table includes all the configuration options and the factory-settings for the thermostat.

A combination of key presses are required to use the Installer Setup feature. —To enter the Installer Setup, press and hold the

Information i key with the increase ▲ and decrease ▼ keys until the first number is displayed. All display segments appear for approximately three seconds before the number is displayed. See Fig. 8 and 9.

—To advance to the next Installer Setup, press the Time ▲▲

key.

—To change a setting, use the increase ▲ or decrease ▼

key.

—To scroll the Installer Setup numbers backwards, press

the Time ▼▼ key.

—To exit the Installer Setup, press Run Program.

Set Program

Hold for

Em Ht

Start Time

Aux Ht

Mon

TueWedThuFriSatSun

Wake

LeaveReturnSleep

Set Day/Time

AM PM

System Fan

Off Auto

Heat

Cool

Temporary Setting Enrg

Heat

Recovery

DST

Wait

Cool

Auto

Sav

Room

%Humid

Outdoor

Repl Batt

Auto

M10345

Fig. 8. Display of all the segments of the LCD.

Temperature Settings

Refer to Table 5 for the default program. If the daytime energy savings period is not used, press the period key (Leave or Return) until the time is blank. The fan setting feature is available on select thermostat models. See Programming Section for complete instructions on changing the program.

Table 5. Default Program Settings.

Heat

Period Time

Setpoint

Wake 6:00 AM 70°F

(21°C)

Leave 8:00 AM 62°F

(16.5°C)

Return 6:00 PM 70°F

(21°C)

Sleep 10:00 PM 62°F

(16.5°C)

Cool

Setpoint

78°F

(25.5°C)

85°F

(29.5°C)

78°F

(25.5°C)

82°F

(28°C)

Fan

Setting

Auto

INSTALLER SETUP

NOTE: For most applications, the thermostat factory-

settings will not need to be changed. Review the factory settings in Table 6 and if no changes are necessary, go to the Installer System Test section.

INSTALLER SETUP NUMBER DISPLAY (COLUMN 2 OF TABLE 6)

FACTORY SETTING OR OTHER CHOICE DISPLAY (COLUMN 3 OR 5 OF TABLE 6)

Fig. 9. Display of Installer Setup number and setting.

CAUTION

Heat pump and electric heat systems must be configured to 1 in Installer Setup number 2 to prevent equipment damage caused by the system running without the fan.

IMPORTANT

Only configurable numbers are shown on the device. Example: If thermostat does not have a system key, Installer Setup Number 12 will not be displayed. Review Table 6 factory-settings and mark any desired changes in the Actual Settings column. When Installer Setup is complete, review the settings to confirm that they match the system.

M10404

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T8600D, T8601D AND T8602D CHRONOTHERM ® IV DELUXE PROGRAMMABLE THERMOSTATS

Table 6. Thermostat Installer Setup Options.

Installer Setup

Other Choices

Select

Number (Press

Time ▲ key to

change)

Factory-Setting

(Press ▲ or ▼ key to change)

Display Description Display Description

Not used 1 — — — — — Fan operation

20Conventional

applications where equipment controls fan operation in heat mode

1 Heat pump or electric heat

applications where thermostat controls fan operation in heat mode

Not used 3 — — — — — Heating cycle

rate

466—6 cph used for

conventional heat

1, 3 or 9 1—1 cph used for radiant floor

heat, gravity system

3—3 cph used for hot water

systems or high efficiency furnaces

9—9 cph used for electric heat

systems Not used 5 thru 11 — — — — — System setting

adjustment Adaptive

Intelligent Recovery™ control

12 1 Manual changeover 0 or 2 0—Auto changeover

2—Fixed auto changeover

13 0 Adaptive Intelligent

Recovery™ control is activated (system

1 Conventional recovery (system

starts recovery at programmed time)

starts early so setpoint

—

is reached by start of program period)

Degree temperature

14 0 Temperature is

displayed in °F

1 Temperature is displayed in °C

display Not used 15 — — — — — Clock format 16 0 12-hour clock format 1 24-hour clock format Not used 17 and 18 — — — — — Extended fan

operation in heating

Extended fan operation in cooling

19 0 No extended fan

operation after the call for heat ends

20 0 No extended fan

operation after the call for cool ends

1 Fan operation is extended 90

seconds after the call for heat ends.

1 Fan operation is extended 90

seconds after the call for cool

ends. Not used 21 thru 23 — — — — — Outdoor

temperature display (select models)

24 0 No outdoor

temperature is displayed

1 Outdoor temperature is

displayed. Needs a

C7089B1000 Outdoor Sensor

to operate Not used 25 thru 29 — — — — — Deadband 30 3 Heating and cooling

setpoints can be set no closer than 3°F (1.5°C)

4 thru 10 Heating and cooling setpoints

can be set no closer than the

chosen value:

4—4°F (2°C) 5—5°F (2.5°C) 6—6°F (3°C) 7—7°F (3.5°C) 8—8°F (4°C) 9—9°F (4.5°C) 10—10°F (5°C)

Number 2 must be set to 1 to extend fan operation.

(continued)

Actual

Setting

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T8600D, T8601D AND T8602D CHRONOTHERM ® IV DELUXE PROGRAMMABLE THERMOSTATS

Table 6. Thermostat Installer Setup Options (continued).

Select

Installer Setup

Number (Press

Time ▲ key to

change)

Factory-Setting

(Press ▲ or ▼ key to change)

Display Description Display Description

Other Choices

Not used 31 and 32 — — — — — Minimum off time

for the compressor

33 5 5 minute minimum off

time for the compressor

0 thru 4 Minimum number of minutes (0

thru 5) the compressor will be off between calls for the compressor

Temperature range stops in heating

Temperature range stops in cooling

34 90 Highest setpoint

heating can be set to

35 45 Lowest setpoint

cooling can be set to

40 to 89 Temperature range (1°F

increments) heating setpoint can be set to

46 to 99 Temperature range (1°F

increments) cooling setpoint

can be set to Not used 36 — — — — — Temperature

display adjustment

37 0 No difference in

displayed temperature and actual room temperature

3 thru -3 1—Display adjusts to 1°F

higher than actual room temperature

2—Display adjusts to 2°F

higher than actual room temperature

3—Display adjusts to 3°F

higher than actual room temperature

-1—Display adjusts to 1°F lower than actual room temperature

-2—Display adjusts to 2°F lower than actual room temperature

-3—Display adjusts to 3°F lower than actual room temperature

Number 2 must be set to 1 to extend fan operation.

Actual

Setting

IMPORTANT

Review the settings to confirm that they match the system. Press Run Program to exit the Installer Setup. The thermostat has saved the Installer Setup changes and initiated a reset in order to operate with these new settings. Be sure to set the current day and time immediately.

Setting Current Day and Time

1. Press Set Current Day/Time.

NOTE: On initial power up or after an extended power

Set Current

Day/Time

loss, 1:00 pm flashes on the display until a key is pressed.

Set Day/Time

Time Set Program

Set Current

Run

Day/Time

Program

Hold Temp

Leave

Wake

Return Sleep

System Fan

Mon

Heat/Cool

Day

Settings

Daylight

Copy

Time

M10312

2. Press Day until the current day is displayed.

NOTE: Sun=Sunday, Mon=Monday, Tue=Tuesday,

Wed=Wednesday, Thu=Thursday, Fri=Friday, Sat=Saturday.

Set Day/Time

Day

Time Set Program

Set Current

Run

Day/Time

Program

Hold Temp

Leave

Wake

Return Sleep

Heat/Cool

Day

Daylight

Time

System Fan

Settings

Copy

Tue

3. Press Time ▲▲ or Time ▼▼ until the current time is

displayed.

NOTE: Tapping the Set Current Day/Time will change

the time in one hour increments.

Time

Time Set Program

Set Current

Run

Day/Time

Program

Hold Temp

Day

Daylight

Leave

Wake

Return Sleep

Heat/Cool

System Fan

Settings

Copy

Time

Set Day/Time

Tue

M10313

M10314

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