Honeywell CT2800 Support Question
Honeywell CT2800 Support Question
Find answers below for this question about Honeywell CT2800.Need a Honeywell CT2800 manual? We have 1 online manual for this item!
Question posted by francocarlesimo on August 12th, 2016
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 display? What does this mean?
Current Answers
Related Honeywell CT2800 Manual Pages
Owner's Manual - Page 1
... Honeywell International Inc. All Rights Reserved
69-1638-1 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 comfortable while saving energy. Your new thermostat will automatically control the temperature in your new Honeywell Programmable...
Owner's Manual - Page 2
... heating strips located just above the floor, usually 120 to determine which system you have.
Compatible with the CT2800, the table recommends an alternate Honeywell model. If you are removing an old thermostat that include warm air furnaces and hot water. MERCURY NOTICE
If you are unsure what type of the old...
Owner's Manual - Page 3
...CT3611
No
See your heating and cooling systems are produced from the same outdoor unit (compressor) with CT2800?
Compatible with no auxiliary or backup heat. batteries.
• Level.
...backup heat.
Save your new thermostat. IMPORTANT: To avoid damaging the compressor in the air conditioner, do not operate the cooling system when the temperature outdoors is a problem with...
Owner's Manual - Page 4
... with wires attached to keep them from the wall, but do not match letters on the old thermostat (Fig. 3). If labels do not disconnect the wires. Remove Old Thermostat
Fig. 2. a. c.
d.
Unscrew and remove the old thermostat's mounting plate from falling back into the wall. If wiring meets any of terminal it . Fig. 4.
M20140...
Owner's Manual - Page 5
... plate is now mounted on the wall. Position the mounting plate on the wall and should look like Fig. 7. e. f.
Separate the mounting plate from the thermostat using a coin, as shown in drywall, gently tap the anchors (provided) into each of the drilled holes or anchors (Fig. 6). Be sure the mounting plate...
Owner's Manual - Page 6
...You can wait until the thermostat is set your new thermostat for your type of heating system allows it to display the temperature in the temperature of Heating System
Fig. 8. THERMOSTAT BACK
DISPLAY F DISPLAY C
3 - ON
F... Thermostat for a warm air, gas, or oil heating system. ON
F
1 - Use the FUEL SWITCH on the next page to set for Your Type of the room, and efficiently run the...
Owner's Manual - Page 7
... OF WIRE VISIBLE HERE
M20126
7
69-1638-1
Using the labels on the wires, match letter of your new thermostat.
a. b.
See Special Wiring Instructions section. 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; 2-On
Fuel Switch...
Owner's Manual - Page 9
...time and the current temperature (Fig. 14).
c. M1719C
Fig. 14.
d. Replace the battery door. Special Wiring Instructions
Clock thermostat with C or C1 terminals
A clock thermostat has one or two.... 13. d.
Continue with the operation of your new CT2800 Thermostat and must be insulated from the digital display.
✓ Check your progress
When the batteries are connected...
Owner's Manual - Page 10
...
If you have three wires for heating only and can operate the fan using the fan ON switch, the CT2800 Thermostat will NOT work with your heating contractor for information about which programmable thermostat will not interfere with your system. If you have a three-wire heating-only system and cannot operate the fan...
Owner's Manual - Page 12
... heating/cooling system is running.
10 TEMPORARY-An arrow displays when a
14
temporary override is made to normal operating mode
13 Hold Temp-Holds a selected temperature.
14 System switch-Selects Cool, Off, Heat.
69-1638-1
12 M20664
11 Temp Warmer and Cooler-Sets the
temperature warmer and cooler.
12 Run Program-Returns thermostat to the
program.
Owner's Manual - Page 13
....
• During the heating season, you to set the normal room temperature higher and the energy-saving temperature lower.
• The reverse is displayed.
b.
Fig. 19. d. Press
once. Set Current Time and Day
Clock/Day
a.
Step 1.
Learn About Programming Features
Your CT2800 Thermostat allows you will want to program schedules for the weekends (Saturday and...
Owner's Manual - Page 14
...thermostat, it automatically controls heating at 68°F (20°C), and cooling at a comfortable temperature for this period. You can set up and get up an Weekdays only energy-saving temperature... for this period.
RETURN
The time between returning home and going to program weekend schedules, the temperature that is programmed for all program periods.
Run
...
Owner's Manual - Page 15
...heating schedule. Fig. 20.
Set the Monday-Friday WAKE temperature by pressing
Fig. 21. Write in the times and temperatures that you want to HEAT. Heating Schedule
Program Period
Suggested... WAKE time by pressing
Temp
until the desired time is displayed (Fig. 21).
e.
Schedule
c. A blank schedule is displayed.
15
69-1638-1
SLEEP 10:00 PM 62°F (16.5°...
Owner's Manual - Page 16
... and repeat steps h.
Press Schedule again to display a blank schedule for the next pro- Press
Run Program
to set program. f.
Fig. 23. j. through f.
k. through j. i.
Press
until the desired time is displayed (Fig.
23). h. Set the Saturday and Sunday WAKE time by
Fig. 24. pressing Temp
until desired temperature displays
(Fig. 24). to start the program...
Owner's Manual - Page 18
...
until the setting is changed, thermostat can delay up to five minutes before turning on air conditioner. The current time and day and current temperature display.
69-1638-1
18 This delay protects the compressor. The time is displayed.
Set the System switch to Cool, and the Fan switch to Auto.
Run
c.
Fig. 26. OPERATION
Change...
Owner's Manual - Page 19
...needed .
19
69-1638-1 System
Cool Off Heat
NOTE: In a heat-only system, the fan runs continuously only if the fan wire has been connected to the G terminal on low with the furnace.... should:
Low
Replace the batteries as soon as possible, within 20-30 seconds of the thermostat. If display is blank, batteries are inserted within the month. Switch Fan
Setting Auto
On
Result
A single-...
Owner's Manual - Page 20
...thermostat. Then reprogram.
Press
or until the desired temperature is temporary (Fig. 27). NOTE:
A temporary change is displayed.
e. Change the temperature temporarily
Fig. 27. d.
IMPORTANT: Replace batteries once a year to prevent heating/cooling system from shutting down due to temperature...press
Run Program
.
69-1638-1
20 NOTE: If "bAt Lo" continues to display ...
Owner's Manual - Page 21
...program
Fig. 30. Press Program to the room temperature. Press Temp played.
until the desired program is dis- Run
a.
The SET indicator displays briefly along with the programmed temperature (Fig. 29).
Press
Run Program
to maintain a constant
temperature indefinitely, such as when you programmed. "HLd" is displayed (Fig. 28). Run
NOTE: To cancel the hold, press Program...
Owner's Manual - Page 22
... (Fig. 31). The batteries are correct. Set System switch to reset thermostat. display should come on .
Make sure current day and time are low; Remove batteries and insert backward for 5-10 seconds. Fig. 31. Press
simultaneously. Display does not come on
•
•
Temperature display does not go
•
lower than 45°F (7°C) or...
Owner's Manual - Page 23
... normal for the furnace to heat up to COOL. Contact ac contractor.
If desired, change the temperature setting.
During recovery from setback or setup, setting and displayed room temperatures can differ for up and the fan to the thermostat.
23
69-1638-1 Thermostat model number and serial code (located under the battery cover) - Number of wires connected...
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