Seven Day Programmable Heat and/or Cool Low Voltage (20 to 30 Vac) Thermostat and Wallplate Model CT3600/CT3697
Total comfort temperature management with Smart Response Technology
Congratulations! You made a smart choice by purchasing your new Honeywell thermostat; the smart thermostat that;
This manual answers many of the questions that can arise as you become familiar and comfortable with your Honeywell thermostat the state of the art in home comfort controls.
Read these instructions carefully. Failure to follow these instructions can damage the product or cause a hazardous condition.
If this thermostat 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 this control, or of an old control containing mercury in a sealed tube.
TYPICAL LOCATION OF A MERCURY SWITCH IN A THERMOSTAT
Table 1. Compatibility Chart
System Type | Compatibility with CT3600/ CT3697 |
Gas – Standing Pilot | Yes |
Gas – Electronic Ignition | Yes |
Gas-fired Boilers | Yesa |
Gas – 750 Millivolt Heat onlyb | Yes |
Oil-Fired Boilers | Yesa |
Oil-Fired Furnace | Yes |
Electric Furnace | Yes |
Electric Air Conditioning | Yes |
Baseboard Electric (120/240 line volt)c | No |
Single Stage Heat Pump | Yes |
Multistage Heat Pumps/Multistage Equipment | No |
Package Contents
Tools Required
Special Installations
Read this section if you are replacing:
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 wires going to the C or C1 clock terminals on the Chronotherm wiring wallplate. Do not allow them to touch, or you can damage the transformer. Disconnect the wires and wrap them separately using electrical tape. Do not wrap them together. Place the wires where they will not interfere with the operation of the new thermostat. Record the colors and terminal designation 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 multistage heat pump or other multistage system. This thermostat is not compatible with multistage systems, so return the product to the place of purchase. For information about which programmable thermostats will work with your system, call Honeywell Customer Relations Center, at 1-800-468-1502.
Replacing a Thermostat that has Three Wires
If you have three wires for a heating only system and can operate the fan using the fan ON switch this thermostat works with your system. However, some hot water (zoned) heating systems also have three wires. Your thermostat will work only if you install an isolating relay on these systems. For details, call your local heating and/or cooling contractor.
IMPORTANT
All wiring must comply with local codes and ordinances. If unsure about household wiring procedures, call your local heat-ing/air-conditioning contractor.Refer to the labels you placed on the wires when you removed the old thermostat (see illustration).
Table 2. Terminal Designations on Old and New Thermostats
Terminal on Old Thermostat | Connect To | Description |
R, RHa, 4, V | R | Power |
Rc, Ra | Rc | Power for cooling |
W, W1, H | W | Heat |
Y, Y1, M | Y | Cooling |
G, F | G | Fan |
O | O | Changeover in cool. (Single stage heat pump only). |
Bb | Bb | Changeover in heat. (Single stage heat pump only). |
Cc, Xc, Bb | Do not connect. | Transformer common |
W2, H2 | Do not continue installation. Call 1-800-468-1502. | Second stage heat. |
Y2 | Second stage cool. |
IMPORTANT
Install three AA alkaline batteries. Batteries must be installed for programming and operation of the thermostat and the heating/cooling system.
When the batteries are running low, a REPL BAT message flashes for one to two months before the batteries run out completely. Replace the batteries as soon as possible once the message flashes.
IMPORTANT
Although the thermostat has a low battery indicator, replace the batteries once per year to prevent leakage and to prevent the ther-mostat and heating/cooling system from shutting down due to lack of battery power in the thermostat.
If you insert new batteries within 20 to 30 seconds of removing the old batteries, the system retains the current time and day. If the display is blank, the batteries are dead or installed incorrectly. You must reset the time and day. Refer to Set the Clock for instructions. As a precaution when leaving home for longer than a month, change batteries before leaving to prevent the system from shutting down due to lack of power. Always use fresh alkaline batteries. Nonalkaline batteries do not last as long. They also can leak, causing damage to the thermostat and the wall surface.
The thermostat fan operation switch, labeled FUEL SWITCH is factory set in the F position. This is the correct setting for most systems. If your system is an electric heat system, set the switch to E. The E setting allows the fan to turn on immediately with the heating and cooling in a system where the G terminal is connected.
Your Honeywell CT3600/CT3697 Thermostat comes preset to the most commonly used settings. The settings are: Gas or oil forced air furnace.
You can change any or all of these settings.
IMPORTANT
Always press the keys with your fingertip or a similar blunt tool. Sharp instruments like pens and pencil points can damage the keyboard.
System Type (Feature Number 4)
System type options are:
1 = Gravity or steam system.
To change your system type:
NOTE: See Smart Response technology (page 21) for information about this feature.
Temperature Format (Feature Number 14)
Temperature format options are:
To change temperature format:
Time Format (Feature Number 16)
Time format options are:
To change time format:
Factory Set Function (Feature Number 37)
Do not change this setting.
Set Current Day and Time
NOTE: On initial power-up, the screen flashes 1:00 pm until you press a key.
The keyboard is located behind the thermostat cover. The three most frequently used keys are near the display.
Pressing
thermostat displays day, time, program period, temperature and system settings.
There is an individual key for each of the four program periods:
get ready for work or school. (This is a higher temperature during the heating season and a lower
temperature during the cooling season).
The program period you can set for an energy-saving temperature while you are away at work or school.
(This is a lower temperature during the heating season and a higher temperature during the cooling season).
The program period when you want the house at a comfortable temperature for activities before bedtime. (This is a higher temperature during the heating season and a lower temperature during the cooling
season).
The program period you can set for an energy-saving temperature while you are sleeping. (This is a lower
temperature during the heating season and a higher temperature during the cooling season.)
Table 3 can be helpful when planning your schedule of time and temperature settings. The thermostat default settings are shown in parentheses ( ).
Table 3. Personal Programming Table
Period | Default Setting | Monday (Mon) | Tuesday (Tue) | Wednesday (Wed) | Thursday (Thu) | Friday (Fri) | Saturday (Sat) | Sunday (Sun) |
Wake | Time (6:00AM) | |||||||
Heata (70°F/21°C) | ||||||||
Coolb (78°F/25.5°C) | ||||||||
Leave | Time (8:00AM) | |||||||
Heata (62°F/16.5°C) | ||||||||
Coolb (85°F/29.5°C) | ||||||||
Return | Time (6:00PM) | |||||||
Heata (70°F/21°C) | ||||||||
Coolb (78°F/25.5°C) | ||||||||
Sleep | Time (10:00PM) | |||||||
Heata (62°F/16.5°C) | ||||||||
Coolb (82°F/28°C) |
Start by programming the wake time and temperature for one day.
NOTE: Program times are in 15 minute intervals. For example, 8:00, 8:15, 8:30.
Copy a Day
Your thermostat can copy program settings from one day to another.
Clear a Program Period
NOTE: Wake cannot be cleared.
Change Temperature Setting Until the Next Program Period (Temporary Change)
Press
NOTE: The temporary temperature setting is displayed for about 3 seconds and then the room temperature is displayed.
Temporary appears in the display. The setting cancels when the next program period starts or when you press
Change Temperature Setting Indefinitely (Hold)
Change the Temperature Setting Until a Designated Day and Period (Vacation Hold)
Daylight Savings Time Key
This feature allows you to switch between standard time and daylight savings time.
Usage Key
First set the fan switch. Fan On: The fan runs continuously. Use for improved air Then set the system switch.
circulation or for more efficient central air cleaning. (In a heat-only system, fan runs continuously only if fan relay is connected to the G thermostat terminal).
Fan Auto: Normal setting for most homes. The equipment controls the fan operation.
Heat: The thermostat controls your heating system.
Off: Both the heating and air conditioning systems are off.
Cool: The thermostat controls your air conditioning system.
If… | Then. |
Display does not appear. | • Make sure the batteries are installed correctly. • Make sure the thermostat is mounted and latched on the wallplate. Mount and latch the thermostat on the wallplate if it is not. |
Temperature settings will not change (example cannot set the heating higher or the cooling lower). | • Make sure the temperature setpoints are: 40 to 90°F (4.5 to 32°C) for heating. 45 to 99°F (7 to 37°C) for cooling. |
Heating does not come on. | • Make sure the heating setpoint is above the room temperature. • Make sure the circuit breaker is not tripped, and reset it if necessary. • Make sure the power switch at the equipment is in the On position, and set it to On if it is in the Off position. • Wait five minutes for the system to respond. • Set the system switch to Heat. |
Cooling does not come on. | • Make sure the cooling setpoint is below the room temperature. • Make sure the circuit breaker is not tripped, and reset it if necessary. • Make sure the system switch at the air conditioner is in the On position, and set it to On if it is in the Off position. • Wait five minutes for the system to respond. • Set the system switch to Cool. |
System on indicator( = | Wait five minutes after seeing the flame or snowflake and check the registers again. If no there is no hot or cool air coming from the registers, refer to Heating does not come on or Cooling does not come on. If all of this has been checked, contact your local heating and cooling contractor. |
Display flashes during programming. | The temperature setting limit has been reached. The heating setting range is 40°F to 90°F (4.5°C to 32°C). The cooling setting range is 45°F to 99°F (7°C to 37°C). |
Temperature change occurs at the wrong times. | 1. Check the program times for the period in question. 2. Make sure the AM and PM settings are correct. 3. Make sure the current time and day settings are correct. 4. Reprogram any incorrect settings. NOTE: If your thermostat is set for Smart ResponseM technology, the start times occur before your programmed comfort periods. |
Customer Assistance
Please read and follow the provided instructions for this thermostat. For additional information, go to www.honeywell.com/yourhome or call our 24-hour automated information line at 1-800-468-1502.
Before calling, please have the following information available:
Your CT3600/CT3697 is actually a small computer. The Smart Response technology calculates the correct time of day to turn on your heating or cooling system. Smart Response technology considers the following information.
The time of day when you want the comfort temperature established
When the thermostat activates Smart Response technology, the thermostat displays In Recovery, changes the setpoint, and turns on the system.
5-WIRE HEAT/COOL (JUMPER REMOVED)
Notice
This thermostat is a Class B digital apparatus that complies with Canadian Radio Interference Regulations, CRC c. 1374.
Honeywell warrants this product, excluding battery, to be free from defects in the workmanship or materials, under normal use and service, for a period of one (1) year from the date of purchase by the consumer. If, at any time during the warranty period, the product is defective or malfunctions, Honeywell shall repair or replace it (at Honeywell option) within a reasonable period of time. If the product is defective,
This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Honeywell that the defect or malfunction was caused by damage that occurred while the product was in the possession of a consumer.
Honeywells sole responsibility shall be to repair or replace the product within the terms stated above. HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY OR INDIRECTLY FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply to you. THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. THE DURATION OF ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IS HEREBY LIMITED TO THE ONE YEAR DURATION OF THIS WARRANTY. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. This warranty gives you specific legal rights, and you may have other rights which vary from state to state. If you have any questions concerning this warranty, please write Honeywell Customer Relations, 1885 Douglas Dr. N., Golden Valley, MN 55422-3992. In Canada, write Retail Products ON30 Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.
Automation and Control Solutions Honeywel 1985 Douglas Drive North Golden Valley, MN 55422 Honeywell Limited-Honeywell Limitée 35 Dynamic Drive Scarborough, Ontario M1V 4Z9 Printed in U.S.A. on recycled paper containing at least 10% post-consumer paper fibers. www.honeywell.com/yourhome
Download Manual:
Honeywell Home CT3600 PROGRAMMABLE THERMOSTAT INSTALLATION INSTRUCTIONS
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