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Most Recent Honeywell CT2800 Questions
Honeywell Ct2800a Thermostat Not Working
It won't come on. No A/C nor heat. Already reset, still not working. Help!
It won't come on. No A/C nor heat. Already reset, still not working. Help!
(Posted by miadm2008 1 year ago)
Have A Code That Appears On My Display
Lately, while the AC unit is running, there is a SA code on the display below the temperature displa...
Lately, while the AC unit is running, there is a SA code on the display below the temperature displa...
(Posted by francocarlesimo 7 years ago)
I Have A Chirping Sound Coming From My Ct2800 Thermostat.
My CT2800 starting a chirping sound. Same sound a smoke detecter makes, I changed the battries but s...
My CT2800 starting a chirping sound. Same sound a smoke detecter makes, I changed the battries but s...
(Posted by Anonymous-153322 8 years ago)
Display Is Blank And Heat Not Working
I attempted to adjust the heat by turning it up a little and suddenly, the screen went blank. I repl...
I attempted to adjust the heat by turning it up a little and suddenly, the screen went blank. I repl...
(Posted by kotikmama 9 years ago)
Popular Honeywell CT2800 Manual Pages
Owner's Manual - Page 1
... Asked Questions ...22 Customer Assistance ...23 Limited Warranty ...24
® U.S. Your new thermostat will automatically control the temperature in your new Honeywell Programmable Thermostat. CT2800 Programmable Thermostat
INSTALLATION AND PROGRAMMING INSTRUCTIONS
Welcome to 30 Vac) Thermostat and Mounting Plate Model CT2800
Table of comfort and energy savings with your home, keeping you...
Owner's Manual - Page 2
... compatibility chart below to 240 volts.
Compatible with the CT2800, the table recommends an alternate Honeywell model. Contact your system, visit us on the Web at www.honeywell.com/yourhome or call Honeywell Customer Care at 1-800-468-1502. Installation
MERCURY SWITCH
INSTALLATION
Verify You Have Correct Thermostat
Fig. 1. Heating/Cooling System
Conventional Single stage systems that...
Owner's Manual - Page 3
... not operate the cooling system when the temperature outdoors is a problem with either system, call a heating/air conditioning contractor-the problem may persist after you have the following parts: • Thermostat and mounting plate • Labels • Screws and anchors • Installation and Programming Instructions
2.
If there is below .
Save your heating and cooling...
Owner's Manual - Page 6
...176;F). To install the batteries, see the Programming section.
69-1638-1
6 Set Thermostat for your heating system uses: F- NOTE: This setting enables proper fan operation. OFF
E
W Y G
FUEL SWITCH
F
E
W Y G C R RC
C
RC
M20637
IMPORTANT: Setting your new thermostat for a warm air, gas, or oil heating system. Use DIP switches 1 and 2 on the back of the thermostat to set to find...
Owner's Manual - Page 7
... terminal (Fig 10).
Wire Thermostat Terminals
Fig. 9. G Y
W R
NOTE: If letters on old thermostat terminals do not match letters on new thermostat terminals, all old wires may not need connecting to new thermostat. Hold thermostat as a 90% or greater AFUE (Average Fuel Utilization Efficiency) unit
Hot water boiler
Electric furnace
DIP Switches 1 and 2
Use factory setting 1-On; 2-On
1-Off...
Owner's Manual - Page 9
... label from each other to program the thermostat. As you begin to avoid damaging your CT2800 Thermostat. d.
Honeywell recommends using electrical tape to touch. b. The flashing continues until you disconnect the wires, do not interfere with the operation of the new thermostat. b. You will not connect these wires to insulate the wires.
Using a coin, open the...
Owner's Manual - Page 10
...
JUMPER (FACTORYINSTALLED). Six or more wires
If your old thermostat has six or more wires (excluding clock wires attached to the C or C1 terminals), your system. See the thermostat compatibility table for information about which programmable thermostat will not connect these wires to your heating contractor for heating only and can operate the fan using the fan ON switch, the CT2800...
Owner's Manual - Page 11
... (W2, H2) or second stage cooling (Y2). Old Thermostat Terminal
Connect to wire the new thermostat.
Transformer common. You have a single-stage heat pump or zoning system. You have a multistage heating/cooling system. Select an alternate thermostat model. Select an alternate thermostat model.
*Remove factory-installed jumper between R and Rc terminals in heat (B terminal).
Owner's Manual - Page 12
...
Auto On
System
Cool Off Heat
Descriptions
1 Fan switch-Selects automatic fan operation or fan on.
2 Set Schedule-Puts the thermostat into programming mode.
3 Set Clock/Day-Sets the clock and day.
4 Time Ahead and Back-Sets the time
9
ahead and back.
10 5 Program periods-Current program period or period being programmed.
11 6 Day of the week-Current day or...
Owner's Manual - Page 13
...Programming Features
Your CT2800 Thermostat allows you will want to set up to four program periods for the weekdays (Monday-Friday), and up to two program periods for both a heating season and a cooling season.
• During the heating season, you to program...day is displayed. Press Time
until the current time is displayed. Press Program once. Fig. 19. Step 2. b.
Fig. 18. The current...
Owner's Manual - Page 14
... you make an error at any lower than 45°F (7°C). • When pressing the buttons, use the ball of your finger or a soft pencil eraser.
Run
Schedule
• If you are regularly away from home. Program Period
Description
When Available
WAKE
The time when you decide not to program your thermostat, it automatically...
Owner's Manual - Page 18
... Auto. Your cooling system and fan should be off. NOTE:
When cooling setting is displayed. Press Clock/Day once. b.
This delay protects the compressor. Set the System switch to Off and the Fan switch to Auto. The time is changed, thermostat can delay up to five minutes before turning on air conditioner.
Fig. 26. e. f. g.
Press Temp...
Owner's Manual - Page 19
...
On
Result
A single-speed fan turns on low with the air conditioner or furnace.
b. Dead
Replace the batteries immediately. Set Fan and System Switches
The switches on the back of the thermostat. Set the Fan switch first and then set to remove them. The fan runs continuously. System
Cool Off Heat
NOTE: In a heat-only system, the fan...
Owner's Manual - Page 20
... power in thermostat. Close the battery door and set to the schedule. IMPORTANT: Replace batteries once a year to prevent heating/cooling system from shutting down due to HEAT or COOL. Override program settings
NOTE: Make sure the System switch is displayed, indicating that positive and negative terminals are oriented as marked inside battery case. Change the temperature...
Owner's Manual - Page 23
...;
not match the display temperature to the thermostat.
23
69-1638-1 Be aware that the System switch is operating correctly. Thermostat model number and serial code (located under the battery cover) - Allow time for the furnace to heat up to 30 minutes after changing setting before checking for the current setting and the displayed room temperature to differ...
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