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 Alanjai on November 22nd, 2012
How Do I Calibrate A Ct2800? It's Temp Is Reading High By 2 Deg. C (technician)
I am an electronics technician and have equipment at home.
Current Answers
Related Honeywell CT2800 Manual Pages
Owner's Manual - Page 1
Registered Trademark Copyright © 2003 Honeywell International Inc. 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. All Rights Reserved
69-1638-1 Weekday/Weekend (5-day/2-day) Programmable Heat and/or ...
Owner's Manual - Page 2
...-1502. Heating/Cooling System
Conventional Single stage systems that contains mercury in a sealed tube (Fig. 1), do not place the old thermostat in the trash. M3701
Make sure that the CT2800 is right for your heating/cooling system. Read the compatibility chart below to 240 volts.
Installation
MERCURY SWITCH
INSTALLATION
Verify You Have Correct...
Owner's Manual - Page 3
...sharp knife.
Alternate Model
No
CT3600
No
CT3600
No
CT3611
No
See your new thermostat.
Save your heating and cooling systems are produced from the same outdoor unit (...one stage. Prepare for Installation
1. Heating/Cooling System
Steam A steam boiler with CT2800? Multistage Conventional A heating or cooling system with auxiliary or backup heat. Multistage ...
Owner's Manual - Page 4
... label using colors. See Mercury Notice for more wires, excluding wires attached to C or C1 terminals.
• The old thermostat has three wires. • There are five wires connected to the old thermostat. • There are extra wires that are not connected to the heating/cooling system, either at the furnace or...
Owner's Manual - Page 5
... wiring opening, and loosely insert the mounting screws into the drilled holes until they are trapped behind it. Fig. 7. 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).
If installing in Fig 5.
Y
G Rc...
Owner's Manual - Page 6
... SYSTEM
WARM AIR FURNACE
HOT WATER OR HIGH EFFICIENCY
ELECTRIC FURNACE
DIP SWITCH FUEL SWITCH
POSITION
POSITION
1 - NOTE: These DIP switches are factory-set your type of the room, and efficiently run the fan. ON 3 - Use DIP switches 1 and 2 on the back of the thermostat to display the temperature in the temperature...
Owner's Manual - Page 7
... efficiency rating should be on the furnace.)
High-efficiency furnace such as shown in . (8 mm) STRIP
M20125
INSERT STRAIGHT UNDER SCREW HEAD
c. Loosen terminal screws and slip each wire beneath its matching terminal (Fig 10). Securely tighten terminals. See Special Wiring Instructions section. Wire Thermostat Terminals
Fig. 9.
Using the labels on new...
Owner's Manual - Page 8
Align the tabs at the top of the thermostat with the tabs at the top of the thermostat (Fig. 12)
M20130
M20131
69-1638-1
8
Step 6. Fig. 12. f.
e. Press the lower edge of the case to latch the bottom of the mounting plate (Fig. 11).
Mount Thermostat
Fig. 11.
Owner's Manual - Page 9
... BATTERY DOOR
IMPORTANT: Batteries must be installed for programming and operation of your new CT2800 Thermostat and must be insulated from the digital display.
✓ Check your progress
When the... correctly, the digital display flashes all entries once, then begins to avoid damaging your CT2800 Thermostat.
a. Using a coin, open the battery door as marked inside the battery case....
Owner's Manual - Page 10
... with electrical tape and place them .
If you have a three-wire heating-only system and cannot operate the fan using the fan ON switch, the CT2800 Thermostat will work with your system.
You will NOT work with such systems and should be returned to the place of a heat pump or multistage system...
Owner's Manual - Page 11
... model. Transformer common.
You have a multistage heating/cooling system. You have a single-stage heat pump or zoning system. Old thermostat terminals that do not match new thermostat terminals
Use the table below to New Thermostat Terminal
R, RH, 4, V
R*
Rc, R
Rc*
W, W1, H
W
Y, Y1, M
Y
G, F
G
O
Do not continue
B
installation
C, X, B W2, H2 Y2
Do not connect
Do not...
Owner's Manual - Page 12
... TH FR SA SU
TEMPORARY
WAKE LEAVE RETURN SLEEP
4
Set
Time Temp Mode
3
Clock/Day
Run Program
2
Schedule
Hold Temp
1
Fan
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...
Owner's Manual - Page 13
... periods are
displayed (Fig. 19). Set Current Time and Day
Clock/Day
a. The time is displayed. Press Clock/Day again.
Learn About Programming Features
Your CT2800 Thermostat allows you will want to program schedules for the weekends (Saturday and Sunday). Fig. 19.
Run
e. The day is displayed. b.
Press Program once.
Press
once...
Owner's Manual - Page 14
...home. RETURN
The time between returning home and going to program times and temperatures for this period.
Run
Schedule
• If you make an error at 78°F (26°C), 24 hours a day.
You can set up an energy-saving temperature for all program periods. If you decide not to program your thermostat... the buttons, use the ball of your home. You can set the system at a ...
Owner's Manual - Page 15
...heating schedule. Schedule
c. Fig. 20.
Set the Monday-Friday WAKE time by pressing
Temp
until the desired time is displayed (Fig. 21). Set the Monday-Friday WAKE ...1638-1 Step 3. e. Time
until desired temperature is displayed (Fig. 20). Heating Schedule
Program Period
Suggested Settings
Time Temp
WAKE 6:00 AM 70°F (21°C)
LEAVE 8:00 AM 62°F (16.5°C)
RETURN 6:00 PM...
Owner's Manual - Page 16
... program. gram period (Fig. 22) and repeat steps d.
h. Set the Saturday and Sunday WAKE temperature by pressing
Time
until desired temperature displays
(Fig. 24). pressing Temp
until the desired time is displayed (Fig.
23). through f. to display a blank schedule for each weekday program period.
Owner's Manual - Page 17
....5°C)
RETURN 6:00 PM 78°F (25.5°C)
Weekday (Mon-Fri) Time Temp
Weekend (Sat-Sun) Time Temp
b. Press Temp
until the setting is 10°F (6°C) above
room temperature (Fig. 25). c....
room temperature. c. Step 5. Your heating system should run after a short delay. b. Press Temp
until the setting is 10°F (6°C) below 50°F (10°C).
17
69-...
Owner's Manual - Page 18
... changed, thermostat can delay up to five minutes before turning on air conditioner. d.
NOTE:
When cooling setting is 10°F (6°C) below
room temperature (Fig. 26). f.
b. Fig. 26. The current time and day and current temperature display.
69-1638-1
18 The cooling system and fan should start. Run
c. Press Temp
until the...
Owner's Manual - Page 19
... has been connected to remove them. a.
Press on the back of your thermostat shows the following in the digital display:
If you see: Flashing "bAt Lo...high with the air conditioner and on automatically with the furnace. Use this setting for improved air circulation during special occasions or for most homes.
The thermostat controls your air conditioning system. The thermostat...
Owner's Manual - Page 21
... then returns to resume the program
Cancel a program
Fig. 30. Press Program to the room temperature.
Run
NOTE: To cancel the hold, press Program .
Press Temp .
Run
a. The SET indicator displays briefly along with the programmed temperature (Fig. 29). Check programs
Schedule
Press
repeatedly to maintain a constant
temperature indefinitely, such as...
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