Table of Contents
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Seven Day
Programmable Heat and/or Cool
Low Voltage (20 to 30 Vac) Thermostat and Wallplate
Model CT8602
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www.honeywell.com/yourhome.
Table of Contents
Step 1. Prepare for Installation ..................................................................................................................................
Step 2. Remove Old Thermostat ...............................................................................................................................
Step 3. Mount thermostat Wallplate ...........................................................................................................................
Step 4. Wire Wallplate Terminals ...............................................................................................................................
Step 5. Install the Batteries ........................................................................................................................................
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. Programming ............................................................................................................................................... 14
Step 11. Operating Your Thermostat ......................................................................................................................... 17
Step 12. Set the Fan and System Switches .............................................................................................................. 19
If You Have a Problem ............................................................................................................................................... 19
Smart Response™ Technology ................................................................................................................................. 21
Wiring Diagrams ........................................................................................................................................................ 22
® U.S. Registered Trademark
Copyright © 2001 Honeywell •
Honeywell CT8602
PROGRAMMABLE THERMOSTAT
•All Rights Reserved
OWNER'S GUIDE
Place Bar Code Here
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69- 1532
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Table of Contents
Related Manuals for Honeywell CT8602
Summary of Contents for Honeywell CT8602
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Page 1: Table Of Contents
Step 12. Set the Fan and System Switches ... 19 If You Have a Problem ... 19 Smart Response™ Technology ... 21 Wiring Diagrams ... 22 ® U.S. Registered Trademark Copyright © 2001 Honeywell • Honeywell CT8602 PROGRAMMABLE THERMOSTAT •All Rights Reserved OWNER’S GUIDE... - Page 2 Total comfort temperature management with Smart Response™ Technology. Congratulations! You made a smart choice by purchasing your new Honeywell thermostat; the smart thermostat that; • Keeps you comfortable by automatically calculating exactly when the furnace or air conditioning should go on to have the house at the desired comfort temperature by the time you wake up or return home.
- Page 3 SET WAKE TIMES INCREASE TIME SETTING AND SETPOINTS OR SCROLL FORWARD THROUGH INSTALLER SETUP AND SYSTEM TEST SET CURRENT DAY AND TIME RETURN TO NORMAL OPERATIONS ENTER INDEFINITE OR TIMED Program HOLD MODE Hold Temp SET CURRENT OR PROGRAM DAY CHANGE BETWEEN DAYLIGHT SAVINGS AND STANDARD TIME...
- Page 4 SHOWS WHEN THERMOSTAT IS IN THE PROGRAMMING MODE SHOWS THERMOSTAT IS PROCESSING INFORMATION AND WAITING TO CALL FOR HEAT OR COOL SHOWS SMART RESPONSE IS CHANGING THE TEMPERATURE TO MEET THE CURRENT Wait Set Program Set Day/Time PROGRAMS Recovery SHOWS...
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Page 5: Step 1. Prepare For Installation
Baseboard Electric (120/240 line volt) Single Stage Heat Pump Multistage Heat Pumps/Multistage Equipment Compatible with 2-wire Honeywell and Taco zone valves. Not compatible with 3-wire zone valves or 2-wire White Rodgers no. 1361 zone valves. Millivolt system must be heat only. -
Page 6: Step 2. Remove Old Thermostat
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. -
Page 7: Step 3. Mount Thermostat Wallplate
STEP 3. MOUNT THERMOSTAT WALLPLATE Separate the wallplate from the thermostat by placing your thumb or fingers between the bottom of the wallplate and the thermostat, and pulling the wallplate up and away from the thermostat. See illustration at right. -
Page 8: Step 4. Wire Wallplate Terminals
(see illustration). Tighten the terminals. FOR WRAPAROUND INSERTION STRIP 7/16 IN. (11 MM). Plug the hole in the wall with insulation to help prevent drafts from adversely affecting thermostat operation. 69-1532 FOR STRAIGHT INSERTION STRIP 5/16 IN. (8 MM). M4826... -
Page 9: Step 5. Install The Batteries
G, F If both RH and R terminals are present on existing thermostat, remove jumper and connect Rh to R and R to Rc. Do not connect both O and B when wiring to a single stage heat pump. Connect O to O. Tape off B. -
Page 10: Step 6. Set Fan Operation Switch
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. Honeywell recommends Energizer® batteries. -
Page 11: Step 7. Mount The Thermostat
ENGAGE TABS AT TOP OF THERMOSTAT AND WALLPLATE. STEP 8. CUSTOMIZE YOUR THERMOSTAT Your Honeywell CT8602 thermostat comes preset to the most commonly used settings. The settings are: Gas or oil forced air furnace. Smart Response technology on. Temperature °F. - Page 12 Press and hold down You now can change any of these settings. System Type (Feature Number 4) System type options are: 1 = Gravity or steam system. 3 = Hot water, high efficiency furnace (90% or better), or single stage heat pump. 6 = Gas or oil forced air furnace (preset).
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Page 13: Step 9. Set The Clock
Time Format (Feature Number 16) Time format options are: 0 = 12-hour clock (preset). 1 = 24-hour clock. To change time format: Press once. Press to return to main display. Program Heating Temperature Range Stops (Feature Number 34) Temperature range options are: 90 = highest setting for heating setpoint (preset) 40 to 89 = temperature range (1°F increments) heating setpoint can be set to. -
Page 14: Step 10. Programming
Press Program STEP 10. PROGRAMMING The keyboard is located behind the thermostat cover. The three most frequently used keys are near the display. Pressing displays the current temperature settings. Pressing the thermostat displays day, time, program period, temperature, system and fan settings. - Page 15 Table 3 can be helpful when planning your schedule of time and temperature settings. The thermostat default settings are shown in parentheses ( ). Period Default Setting Wake Time (6:00AM) Heat (70°F/21°C) Cool (78°F/25.5°C) Leave Time (8:00AM) Heat (62°F/16.5°C) Cool (85°F/29.5°C)
- Page 16 After the first day is programmed, you can copy that day to any other day using procedure in Copy a Day. Press when the entire week is programmed. Program Copy a Day Your thermostat can copy program settings from one day to another. Press Wake Leave Return Press until the display shows the day you want to copy.
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Page 17: Step 11. Operating Your Thermostat
Press and hold the Leave Repeat the above steps for each period to be cleared. Press Program STEP 11. OPERATING YOUR THERMOSTAT Change Temperature Setting Until the Next Program Period (Temporary Change) Press until the screen shows the desired temperature setting. NOTE: The temporary temperature setting is displayed for about 3 seconds and then the room temperature is dis- played. - Page 18 Change Temperature Setting Indefinitely (Hold) Move the System switch to the desired position (Heat or Cool). Press then Hold Temp temperature to room temperature after approximately three seconds). To cancel “Hold” press Program Change the Temperature Setting Until a Designated Day and Period (Vacation Hold) Press twice.
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Page 19: Step 12. Set The Fan And System Switches
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. • Make sure the temperature setpoints are: 40 to 90°F (4.5 to 32°C) for heating. - Page 20 Make sure the current time and day settings are correct. Reprogram any incorrect settings. NOTE: If your thermostat is set for Smart Response™ technology, the start times occur before your programmed comfort periods. • Wait until Replace Battery indicator is illuminated and replace batteries.
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Page 21: Smart Response™ Technology
Location and number of wires connected to the thermostat. SMART RESPONSE™ TECHNOLOGY Your CT8602 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. -
Page 22: Wiring Diagrams
WIRING DIAGRAMS 2-WIRE HEAT-ONLY (JUMPER INTACT) THERMOSTAT RC O W Y HEATING RELAY OR VALVE COIL 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 3-WIRE HEAT ONLY WITH FAN (JUMPER INTACT) THERMOSTAT RC O W Y HEATING... - Page 23 RELAY VALVE COIL 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. Notice: This thermostat is a Class B digital apparatus that complies with Canadian Radio Interference Regulations, CRC c. 1374. COOLING CONTACTOR COIL POWER SUPPLY. PROVIDE DISCONNECT MEANS AND...
- Page 24 Golden Valley, MN 55422 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 which occurred while the product was in the possession of a consumer.