Honeywell CT3300 Support Question
Honeywell CT3300 Support Question
Find answers below for this question about Honeywell CT3300.Need a Honeywell CT3300 manual? We have 1 online manual for this item!
Question posted by luchfoster on April 14th, 2013
How Can I Reduce The Temperature To Stay At A Constant 19.5
how can i reduce the thermostat to its normal setting of 19.5 it seems to have changed without any interference from me its showing a temp. of 25.5
Current Answers
Related Honeywell CT3300 Manual Pages
Owner's Manual - Page 1
... Cool Low Voltage (20 to 30 Vac) Thermostat and Mounting Plate Model CT3300
Welcome to the world of Contents
Installation
2
Programming
11
Operation
17
Change the clock for Daylight/
17
Standard Time
Set the Fan and System switches 17
Replace the batteries
18
Override the program settings
19
Frequently asked questions
22
Limited 1-Year Warranty
24...
Owner's Manual - Page 2
... sure that include warm air furnaces and hot water.
Multistage Heat Pump Heating and cooling are produced from the same outdoor unit (compressor) with CT3300?
Heating/cooling system
Conventional Single stage systems that the CT3300 is the right thermostat for your system is right for instructions regarding recycling and the proper disposal of...
Owner's Manual - Page 3
...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 ...damaging the compressor in the air conditioner, do not operate the cooling system when the temperature outdoors is a problem with 3/16-inch or 7/32-inch drill bit • ...
Owner's Manual - Page 4
..., but do not match the letters on the old thermostat terminals, see the special wiring instructions on page 9. • The old thermostat is a clock thermostat with the letter of the terminal that are extra wires... that it .
If the wiring meets any of your old thermostat (Fig. 2). If the labels do not disconnect the wires. f. b. e.
Note: Remember,...
Owner's Manual - Page 5
... sure the mounting plate sits flush against the wall and none of the wires are flush with the wall.
d.
f. Separate the mounting plate from the thermostat using a coin, as shown in drywall, gently tap the anchors that were provided into each of the mounting plate's screw holes. Position the mounting plate...
Owner's Manual - Page 6
... turn.
Use the FUEL SWITCH on the next page to display the temperature in the temperature of the thermostat to set to find the correct settings. d. See the heating system table on the back of the room, and efficiently run the fan. Note: This setting enables proper fan operation.
c. a. You can install the batteries and program...
Owner's Manual - Page 7
... in
A-leave in B-out one complete turn
Fuel switch F
F F E
Step 5. Note: If the letters on the old thermostat terminals do not match the letters on page 10 for details. b. c. Heating system table Note: Setting the screw "out one turn" means turning the screw 360° counter-clockwise, or one turn .
See the...
Owner's Manual - Page 8
... flash a default time and the current temperature (Fig. 14).
a. Align the tabs at the top of the thermostat with the tabs at the top of the thermostat (Fig. 12). M20130
Step 7. The...-0654-5 b. Make sure that the System switch is set in Fig. 13. Press the lower edge of the case to program the thermostat. Mount the thermostat
Fig. 11
Fig. 12
a. e. Install the batteries...
Owner's Manual - Page 10
Second stage heat (W2, H2) or second stage cooling (Y2). You have a single stage heat pump or zoning system. INSTALLED). Power Power for an alternate thermostat model. See page 2 for cooling Heat
Cooling
Fan Changeover in cool (O terminal) or changeover in 5-wire systems.
10 INSTALLATION
69-0654-5 Fig. 15 JUMPER (FACTORY- ...
Owner's Manual - Page 11
...
has been running (page 21). 15 Run Program-Returns thermostat to operating mode. 16 Hold Temp-Holds a selected temperature (page 19). 17 Present Setting-Displays the temperature setting for
the current program period (page 20). 18 System switch-Selects Cool, Off, Heat (page 18). 19 Arrow buttons-Allow you to temporarily change the
temperature without opening the faceplate door (page...
Owner's Manual - Page 12
... are
displayed (Fig. 19). Press
once. Press and hold
or
until the current time is displayed (Fig. 17).
c. The current time and day and the current temperature are defined on the next page.
12 PROGRAMMING
69-0654-5 Learn about the programming features
Your CT3300 thermostat allows you will want to set up to four program...
Owner's Manual - Page 13
... program period, which begins on Monday morning.
• The temperatures cannot be set an energy-saving temperature for the weekday SLEEP schedule will automatically control heating at 68°F (20°...need to program times and temperatures for this period. Program period
WAKE
LEAVE RETURN
SLEEP
Description
The time when you decide not to program your thermostat, it will remain in...
Owner's Manual - Page 14
... the desired temperature is displayed (Fig. 21). Press
to HEAT. Press
once.
for each weekday
program period. Step 3.
Program the heating schedule
a. d. Set the Monday-Friday WAKE time by pressing
or
until the desired time is displayed. Heating Schedule
Suggested Settings
Weekday (Mon-Fri)
Weekend (Sat-Sun)
Program period
Time Temp Time Temp Time Temp
WAKE...
Owner's Manual - Page 15
... and Sunday WAKE temperature by pressing
or
until the weekend schedule is displayed (Fig. Program the cooling schedule
a. to program for the SLEEP
program period and repeat steps h. Cooling Schedule
Suggested Settings
Weekday (Mon-Fri)
Weekend (Sat-Sun)
Program period
Time Temp Time Temp Time Temp
WAKE
6:00 AM 78°F (25.5°C)
LEAVE
8:00 AM...
Owner's Manual - Page 16
... conditioner, do not operate the cooling system when the temperature outdoors is below 50°F (10°C). Press
until the setting is 10°F (6°C) above room
temperature (Fig. 25). b. c. Note: When the cooling setting is 10°F (6°C) below room
temperature.
Press
until the setting is changed, the thermostat may delay up to COOL. d.
This delay protects the...
Owner's Manual - Page 17
....
The current time and day and the current temperature are displayed. Switch Fan
Setting Result
Auto On
A single-speed fan turns on low with the air conditioner or furnace.
The time is the normal setting for more efficient air cleaning. Set the Fan switch first and then set the System switch.
The fan runs continuously. g.
Press...
Owner's Manual - Page 19
... Use the Hold Temp feature when you want to maintain a constant temperature indefinitely, such as when you
programmed resumes when the next scheduled program period is
reached. Press
.
a. The heating/cooling schedule that the change to the temperature lasts for a few seconds and then resumes reading the current room temperature. Override the program settings
Note: Make sure...
Owner's Manual - Page 20
... program is
canceled (Fig. 31).
20 OPERATION
Fig. 29
Fig. 30 Fig. 31
69-0654-5 Check programs
Press
repeatedly to resume the program.
Press
. The SET indicator displays briefly along with
the programmed temperature (Fig. 29). A blank program schedule is displayed and the program is displayed
b. Press
to display the times and...
Owner's Manual - Page 22
...°F (7°C) or higher than 88°F (31°C) during programming Display shows flashing or steady "bAt Lo"
Temperature change occurs at the register. • If the temperature setting is higher than the current room temperature and
the SYSTEM ON arrow is displayed, the thermostat is 45°F-88°F (7°C-31°C).
• The batteries are...
Owner's Manual - Page 23
... it is normal for assistance. Customer assistance For all questions concerning this thermostat, please read and follow the instructions. Cooling will not come on page 7. See page 19 for correct wiring and good connections.
Contact an air conditioning contractor for the current setting and the displayed room temperature to COOL.
Then...
If... If the temperature setting is...
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