Honeywell T8601D Thermostat User Manual

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T8600D, T8601D and T8602D

Chronotherm 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.

APPLICATION

Adaptive Intelligent Recovery™ control brings the

room temperature to temperature setpoint at the

programmed time, maximizing comfort and energy

savings.

The T8600, T8601 and T8602 Chronotherm® IV Deluxe

Programmable Thermostats provide electronic control of

24 Vac single-stage heating and cooling systems.

•

Setpoints are permanently held in memory (no

batteries used) and retained during power outages for

increased installer and homeowner convenience.

T8600/T8601/T8602

FEATURES AND BENEFITS

Power stealing, hardwired and battery powered

models available for virtually all equipment and

application needs.

•

Full seven-day program capability; different schedules

and temperature setpoints may be selected for

Universal Versaguard™ Thermostat guards available

for added security.

everyday to match the homeowner’s flexible schedule.

•

Copy key makes programming easier and faster for

the installer and homeowner.

Contents

Daylight Savings Time (DST) key for quick change in

and out of Daylight Savings Time.

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

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.

U.S. Registered Trademark

•

68-0164-1

T8600D, T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS

System Current Load Ratings:

SPECIFICATIONS

VA maximum at 30 Vac, 50/60 Hz.

IMPORTANT

The specifications given in this publication do not

Output Relay Load Rating:

See Table 2.

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.

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:

Thermostat Models

Range:

T8600, T8601 and T8602 Thermostats provide features listed

in Table 1.

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.

Electrical Rating (Nominal Range):

24 Vac, 50/60 Hz.

0 to 30 Vac, 50/60 Hz.

Minimum Stage Operation Time:

Minimum Off (Heat and Cool ): factory setting 5 minutes;

option 0 to 5 minutes.

Batteries:

Only T8602 models require batteries.

Humidity Ratings:

Loss of Power:

5% to 90% RH, noncondensing.

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.

Clock Accuracy:

1 minute per month.

Table 1.Thermostat Features.

System

Selection

Fan

Selection

System Changeover

Comments

T8600 (powered by either the heating or cooling system)

Heat-Cool Automatic Heat-Off-Cool-Auto On-Auto

T8601 (powered by common wire to supply power)

System and fan selections are done by keyboard.

Heat-Cool Automatic

T8602 (powered by batteries)

Heat-Cool Automatic

Heat-Off-Cool-Auto On-Auto

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

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.

68-0164—1

T8600D, T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS

Table 2. Maximum Amps at 30 Vac.

Finish:

Taupe color.

Relay

Running (A)

Inrush (A)

Fan

Heat

Cool

0.5

1.5

2.5

3.5

7.5

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

Table 3. Default Setpoints.

(included).

Heat

Setpoint

Cool

Setpoint

Fan

Setting

Period

Time

Accessories:

C7089B Outdoor Temperature Sensors (69-1020).

Universal Versaguard™ Thermostat guards.

Wake

Leave

Return

Sleep

6:00 AM

70°F

78°F

(25.5°C)

Auto

(21°C)

8:00 AM

6:00 PM

10:00 PM

62°F

16.5°C)

70°F

85°F

(29.5°C)

Auto

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.

78°F

(25.5°C)

(21°C)

62°F

82°F

(16.5°C)

(28°C)

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)

(

-1/2

89)

1-9/16

(40)

6-1/16 (154)

1/2

(13)

(

-3/4

95)

M10359

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

68-0164—1

T8600D, T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS

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

The thermostat will function properly even when not

level.

INSTALLATION

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

When Installing this Product...

. Read these instructions carefully. Failure to follow the

instructions can damage the product or cause a

hazardous condition.

. Check the ratings given in the instructions and on the

product to make sure the product is suitable for your

application.

4. Position the wallplate over the holes, pulling wires

through the wiring opening.

3. Installer must be a trained, experienced service

technician.

. Loosely insert the mounting screws into the holes.

. Tighten mounting screws.

4. After completing installation, use these instructions to

check out the product operation.

WIRING

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.

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.

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.

CAUTION

Disconnect power before wiring to prevent electrical

shock or equipment damage.

. Loosen the terminal screws on the wallplate and

connect the system wires. See Fig. 4

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.

YES

FEET

[

1.5 METERS]

M10106

Fig. 2.Typical location of thermostat.

68-0164—1

T8600D, T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS

WALL

WIRES

THROUGH WALL

WALL

ANCHORS

(2)

FOR STRAIGHT

INSERTION STRIP

FOR WRAPAROUND

INSERTION STRIP

5/16 IN. (8 MM).

7/16 IN. (11 MM).

M4826

Fig. 4. Proper wiring technique.

MOUNTING

HOLES

Mounting Thermostat Wallplate

MOUNTING

SCREWS

The thermostat mounts on the wallplate after they are

installed.

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

Fig. 5.

M15044

2. Press lower edge of case to latch.

Fig. 3. Mounting the wallplate.

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

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

IMPORTANT

Use 18 gauge, color-coded thermostat cable for

proper wiring.

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

Heating damper or changeover valve

Common

Function

Output

Terminal Type

—

24V powered contact

B , C, X1, X2

Input

Fan relay

Output

Input

24V powered contact

Cooling damper or changeover valve

Outdoor temperature sensor (C7089B)

24V system or heating transformer

24V cooling transformer

Heating relay

24V powered contact

OT, OT

—

Input

—

Input

—

H1, R3

C1, M

Output

24V powered contact

Compressor contactor

Some OEM models label the terminal for transformer common B.

68-0164—1

T8600D, T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS

A. 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,

display outdoor temperature (select models),

set the system operation,

set the fan operation.

B. PRESS LOWER EDGE OF CASE TO LATCH.

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

period individually. The system selection is for all the program

periods.

M15043

Fig. 5. Mounting thermostat on wallplate.

SET WAKE TIMES

AND SETPOINTS

INCREASE TEMPERATURE

SETTING OR SCROLL

FORWARD THROUGH

SET LEAVE TIMES

AND SETPOINTS

INCREASE TIME SETTING

OR SCROLL FORWARD

THROUGH INSTALLER SETUP

AND SYSTEM TEST

INSTALLER SETUP OPTIONS

SET RETURN TIMES

AND SETPOINTS

DECREASE TEMPERATURE

SETTING OR SCROLL

BACKWARD THROUGH

INSTALLER SETUP OPTIONS

SET CURRENT

DAY AND TIME

DISPLAY INFORMATION

SUCH AS PRESENT

SETTINGS AND OUTDOOR

TEMPERATURE

RETURN TO

NORMAL

OPERATIONS

ENTER

INDEFINITE

OR TIMED

SET SLEEP

TIMES AND

SETPOINTS

Time

Set Program

Run

Program

Set Current

Day/Time

Wake

Leave

Return

Sleep

HOLD MODE

SELECT FAN

OPERATION

Heat/Cool

Settings

Hold Temp

Day

System

Fan

Daylight

Time

Copy

SET CURRENT OR

PROGRAM DAY

SELECT SYSTEM

OPERATION

CHANGE BETWEEN

DAYLIGHT SAVINGS

AND STANDARD TIME

CHANGE BETWEEN

HEATING AND COOLING

SETPOINTS

COPY ONE PROGRAMMED

DAY TO ANOTHER DAY

DECREASE TIME SETTING

OR SCROLL BACKWARD

THROUGH INSTALLER

SETUP AND SYSTEM TEST

M10405A

Fig. 6. Key locations and descriptions.

68-0164—1

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.

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.

Fan settings control the system fan as follows:

On: Fan operates continuously.

—

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.

Auto: Fan operates with equipment.

—

Time

Set Program

Leave

Return

Run

Program

Set Current

Day/Time

Wake

Sleep

Fan

System

Fan

Hold Temp

Day

H Se ea t tt /i Cn go so l

System

Daylight

Time

Copy

Set Program Start Time Set Day/Time Temporary Setting Enrg

Sav

Hold for

Em Ht

Room

%Humid

Outdoor

Aux Ht

MonTueWedThuFriSatSun

Heat Cool

Auto Repl Batt

Fan

M15042

WakeLeaveReturnSleep In Recovery

DST