Honeywell CT3500 User Manual

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Weekday, Saturday and Sunda

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Programmable Heat and/or Cool Low Volta Model CT3500/CT3595

20 to 30 Vac) Thermostat and Wallplate

Honeywell CT3500/CT3595

PROGRAMMABLE THERMOSTAT

OWNER’S GUIDE

Para pedir estas instrucciones en español, llame al 1-800-468-1502. Pour obtenir ce ode demploi en fran

ais, composer le 1-800-468-1502.

Table of Contents

Step 1. Prepare for Installation .................................................................................................................................. 5

Step 2. Remove Old Thermostat ............................................................................................................................... 6

Step 3. Mount Thermostat Wallplate ......................................................................................................................... 7

Step 4. Wire Wallplate Terminals ............................................................................................................................... 8

Step 5. Install the Batteries ....................................................................................................................................... 9

Step 6. Set Fan Operation Switch ............................................................................................................................. 10

Step 7. Mount the Thermostat ................................................................................................................................... 11

Step 8. Customize Your Thermostat .......................................................................................................................... 11

Step 9. Set the Clock ................................................................................................................................................. 13

Step 10. Pro Step 11. Operatin Step 12. Set the Fan and S

If You Have a Problem ............................................................................................................................................... 19

Smart Response™ Technolo Wirin

® U.S. Registered Trademark Cop

ramming .............................................................................................................................................. 14

Your Thermostat ......................................................................................................................... 17

Diagrams ........................................................................................................................................................ 22

stem Switches .............................................................................................................. 18

................................................................................................................................. 21

69- 1199- 2

Total comfort temperature management with Smart Response™ Technology.

M10614

MERCURY SWITCH

TYPICAL LOCATION OF A MERCURY SWITCH IN A THERMOSTAT

Congratulations! You made a smart choice by purchasing your new Honeywell thermostat the smart thermostat that;

Keeps you comfortable

•

have the house at the desired comfort temperature b

Saves the maximum amount of energy and money

•

ou leave home or go to sleep.

Provides the ultimate in comfort and convenience

•

schedule, or set

by automatically calculating exactly when the furnace or air conditioning should go on to

the time you wake up or return home.

by automatically remembering to adjust the temperature when

. It comes preprogrammed. You can use the preprogrammed

our own.

This manual answers man

well thermostat — the state of the art in home comfort controls.

Hone

Read these instructions carefull

of the questions that can arise as you become familiar and comfortable with your

. Failure to follow these instructions can damage the product or cause a hazardous

condition.

MERCURY NOTICE

If this thermostat is replacing a control that contains mercury in a sealed tube, do not place

ement authority for instructions regarding recycling and the proper

mana disposal of this control, or of an old control containin tube.

ou have questions, call Honeywell Inc. at 1-800-468-1502.

69-1199—22

our old control in the trash. Contact your local waste

mercury in a sealed

DIGITAL DISPLAY

SET CURRENT DAY/TIME

SETS CURRENT TIME AND DAY

RUN PROGRAM

RETURNS THERMOSTAT TO NORMAL OPERATING MODE

HOLD TEMP

SETS A HOLD TEMPERATURE AND ACTIVATES VACATION HOLD FEATURE.

DAY

SETS DAY OF THE WEEK

TIME /TIME

SETS TIME FORWARD OR BACK

Run

Program

Hold Temp

Set Current

Day/Time

Day

Time Set Program

Wake

Heat/Cool

Settings

Leave

System

Return Sleep

Heat Off Cool

On Auto

Fan

RAISES TEMPERATURE SETTING

LOWERS TEMPERATURE SETTING

DISPLAYS CURRENT HEAT/COOL TEMPERATURE SETTING

PROGRAM PERIODS

WAKE/LEAVE/RETURN/SLEEP: ENTERS PROGRAMMING MODE

SYSTEM SWITCH

SELECTS HEAT/OFF/COOL

FAN SWITCH

SELECTS AUTO/ON

HEAT/COOL SETTING

SWITCHES BETWEEN HEAT SETPOINTS AND COOL SETPOINTS WHILE PROGRAMMING

M18589

3 69-1199—2

DISPLAYS EITHER CURRENT TIME OF DAY OR PROGRAM TIMES

SHOWS WHEN THERMOSTAT IS IN THE PROGRAMMING MODE

SHOWS VACATION HOLD DURATION

SHOWS CURRENT DAY OR DAYS BEING PROGRAMMED

SHOWS CURRENT PROGRAM PERIOD OR PERIOD BEING PROGRAMMED

Set Program

Hold for

Em Ht Aux Ht

Mon

TueWedThuFriSatSun Days

WakeLeaveReturnSleep

System

Off Auto

Heat

Cool

Set Day/Time

Recovery

Wait

Temporary Setting

Humid

Outdoor

Filter

Repl Batt

SHOWS THERMOSTAT IS IN THE SET DAY/TIME MODE

SHOWS TEMPERATURE SETTING CHANGED FOR THIS PROGRAM PERIOD

SHOWS THE TEMPERATURE DISPLAYED IS THE CURRENT SET TEMPERATURE

Room

SHOWS THE TEMPERATURE DISPLAYED IS THE CURRENT ROOM TEMPERATURE

SHOWS THE BATTERIES ARE LOW AND MUST BE REPLACED

SHOWS CURRENT SYSTEM SWITCH POSITION HEAT/OFF/COOL

SHOWS THAT THERMOSTAT IS "CALLING" FOR HEAT OR COOL

SHOWS THERMOSTAT IS PROCESSING INFORMATION AND WAITING TO CALL FOR HEAT OR COOL

SHOWS SMART RESPONSE IS OFF CONVENTIONAL RECOVERY IS ON

SHOWS SMART RESPONSE IS CHANGING THE TEMPERATURE TO MEET THE CURRENT PROGRAMS

DISPLAYES EITHER ROOM OR SET TEMPERATURES

69-1199—24

M18590

STEP 1. PREPARE FOR INSTALLATION

❑ Check Table 1, the compatibilit

is not compatible, call Hone

chart, to make sure the thermostat is compatible with your system. If your system

well Customer Relations Center, toll-free, 1-800-468-1502.

Table 1. Compatibility Chart.

System Type Compatibility with CT3500/CT3595

Gas — Standin Gas — Electronic I Gas-fired Boilers

Gas — 750 Millivolt Heat onl Oil-Fired Boilers

Pilot Yes

nition Yes

Yes

Oil-Fired Furnace Yes Electric Furnace Yes Electric Air Conditionin

Baseboard Electric (120/240 line volt)

le Stage Heat Pump Yes

Sin

Multista

b c

e Heat Pumps/Multistage Equipment No

Compatible with 2-wire Honeywell and Taco zone valves. Not compatible with 3-wire zone valves or 2-wire White

ers no. 1361 zone valves.

Rod Millivolt system must be heating only. Not compatible with any 120/240 volt system.

Yes No

Package Contents

• Thermostat • Wallplate • Screws and anchors

• Wirin

labels • 3 Energizer® AA batteries • Owners manual

Tools Required

• Screwdriver

• Drill

5 69-1199—2

STEP 2. REMOVE OLD THERMOSTAT

WIRES THROUGH WALL OPENING

M5136

❑ Test

❑ Turn off power to the s ❑ Carefull ❑ Remove the cover from the old thermostat. If the cover does not snap off when pulled firml

❑ Loosen the screw or screws holdin ❑ Disconnect the wires from the old thermostat. As

our heating and cooling systems to make sure they work properly. If either system does not work, contact

our local heating/air-conditioning dealer. To avoid compressor damage, do not operate the cooling system when

outdoor temperature is below 50°F (10°C).

unpack your new thermostat and wallplate. Save package of screws, instructions, and receipt.

for a screw or screws used to lock on the cover.

terminal desi shown to keep them from fallin

nation. If there are only two wires, they do not need to be labeled. Wrap the wires around a pencil as

stem at the furnace or the fuse/circuit breaker panel.

from the bottom, check

the thermostat to the wallplate and lift the thermostat away.

ou disconnect each wire, attach the enclosed labels with the old

back into the wall.

Special Installations

Read this section if you are replacing:

• Clock thermostat with separate wires for the clock.

• Thermostat with six or more wires connected to it.

• Thermostat in a heatin

only system with three wires.

Replacing a Clock Thermostat that has C or C1 Clock Terminals

If you are replacing a Honeywell Chronotherm® Thermostat, you may find one or two

oing to the C or C1 clock terminals on the Chronotherm wiring wallplate. Do not allow them to touch, or you can

wires

e the transformer. Disconnect the wires and wrap them separately using electrical tape. Do not wrap them

dama

ether. Place the wires where they will not interfere with the operation of the new thermostat. Record the colors and

to terminal desi

nation labels of the remaining wires.

Replacing a Thermostat that has Six or More Wires

If there are six or more wires (excluding clock wires attached to terminals), you probably have a variation of a multista the product to the place of purchase. For information about which pro s

e heat pump or other multistage system. This thermostat is not compatible with multistage systems, so return

stem, call Honeywell Customer Relations Center, at 1-800-468-1502.

rammable thermostats will work with your

69-1199—26

Replacing a Thermostat that has Three Wires

M16427

If you have three wires for a heating only system and can operate the fan using the fan ON switch this thermostat works with work onl contractor.

our system. However, some hot water (zoned) heating systems also have three wires. Your thermostat will

if you install an isolating relay on these systems. For details, call your local heating and/or cooling

STEP 3. MOUNT THERMOSTAT WALLPLATE

❑ Separate the wallplate from the thermostat b

the bottom of the wallplate and the thermostat, and pullin from the thermostat. See illustration at ri

placing your thumb or fingers between

the wallplate up and away

ht.

❑ Position the wallplate on the wall. Level the wallplate for appearance if desired. Use a

pencil to mark the two mountin

holes that best fit the application.

❑ Remove the wallplate from the wall. Drill two 3/16 in. holes in wall

(if dr

wall) as shown. For materials such as plaster or wood, drill 7/32 in. holes where marked. Gentl into the drilled holes until the

❑ Reposition the wallplate over the holes. Pull the wires throu

opening. Loosely insert mounting screws into each of the

wirin holes

❑ Level the wallplate if desired. Thermostat functions properl

, tap the (provided) anchors

are flush with the wall.

h the

when

WALL ANCHORS (2)

WIRES THROUGH WALL

not level.

❑ Ti

hten mounting screws.

7 69-1199—2

WALL

MOUNTING HOLES

MOUNTING SCREWS

M15044

STEP 4. WIRE WALLPLATE TERMINALS

IMPORTANT

All wiring must comply with local codes and ordinances. If unsure about household wiring procedures, call your local heating/air-conditioning contractor.

Refer to the labels you placed on the wires when you removed the old thermostat (see illustration). ❑ Match the letter of

correspondin

our old thermostat wire with the

terminal letter on your new thermostat. Refer to

Table 2.

❑ Remove the factor

-installed jumper connecting terminals R and

RC if wires are connected to both of those terminals.

❑ For wirin

diagrams, if needed, see pp 21-22.

❑ Loosen the terminal screws. Slip each wire beneath its matchin

terminal. Wraparound and strai acceptable, (see illustration). Ti

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

❑ Plu

the hole in the wall with insulation to help prevent drafts

from adversel

affecting thermostat operation.

ht connections are both

hten the terminals.

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

M4826

M16425

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+ 16 hidden pages