Radio Thermostat CT80 User manual

PG 1
Operation Guide CT80
The CT80 programmable communicating
thermostat operates via a high-quality, easy-to-use
touch screen. To program or adjust your CT80,
simply touch your nger rmly to the screen. The
screen will automatically light up. The screen will
respond differently to different types of touches, so
you may want to experiment with your nger or a
stylus (not included), to see what works best for you.
The “beep” sound is heard when the CT80 senses
a valid touch of the screen.
ENGLISH
Statement of use: 100% Compatible with all popular
residential HVAC systems; 24VAC single, two, three stage
conventional heating systems (gas/oil/electric), heat pumps
(single and two stage compression) and 1,2, or 3 stage
auxiliary heat (electric or fossil), zoned forced air and
zoned hot water (2 or 3 wire), millivolt systems (with 24VAC
adapter), one or two stage cooling, and hybrid systems.
Save
Energy
button
Power Grid
status
indicator
top cover
Touch screen
Wire
terminals
RC-RH
Connect Switch
temp
button
Home
button
Mode
button
Lower
temp
MENU
button
Reset
button
bottom
cover
statu
HVAC
Filter
s
status
FAN
HEAT
CHECK
FILTER
SAVE
ENERGY
COOL
pn812-004-002 b2
Raise
button

PG 2
PG 2
CONTROL SCREENS
Before you operate the CT80 please get familiar with these basic control screens. All the CT80
functions are accessed through these screens. HOME pg2, MENU pg3, and MANUAL pg4. The
CT80 touch screen technology allows you to select (by touching) an item and change it using the +/-
buttons on the control bar. All user inputs use this method. If you want to change it, touch it.
The HOME screen is displayed when
the unit is operating. Touching the green
HOME icon on the control bar will
always return you to this screen.
To set a Mode:
Press the Power button on the
control bar. Touch the desired mode
from the choices displayed at the bottom
COOL, HEAT, AUTO or OFF.
Touch HOME when done.
Set the time by touching hour, minute, or
day and the +/- buttons to change.
Your CT80 is now controlling your HVAC.
HOME Screen
$0.05 KWA
Power Status Normal $.05/kWh
OFF
12:30pm
5/25 WED
TARGET
77o
TEMP
HUMID
23%
FAN
o
F
Thermostat Mode
indicator
Message
area
Radio
icon
Fan icon
access fan
controls
Power
Company
info area
Current Room
Temperature
Touch this or the +/- buttons
to temporarily modify
target temp setting
Time
Touch this
to set time
Day
Touch this
to set day
POWER
button
mode
control
Increase
temp
HOME
MENU
Decrease
temp

PG 2
PG 2
PG 3
MENU Screen The MENU screen is the gateway to many functions of the CT80. It is
displayed when you press the purple MENU button on the control bar to the right side of the screen.
Note page numbers for further info about each function.
pg15-16
pg9
pg9
pg17
pg13
F˚
/C ˚
COMFORT
HUMIDIFY
HVACSET-UP
PROGRAM
INFORMATION
NETWORK
CALIBRATE
CONSUMABLES
12:30pWED72 .
Calibration control
Use this to calibrate your LCD
display match to another device
Network control
Use this to configure network
connections
Information access
Use this to access info screens
from network connections
Set
o
F -
o
C
Touch this to set
temperature display
Lock Control
Chirp set
Touch this to turn the
audible chirp on or off
HVAC SET-UP
Use this to set
your CT80 to control
your HVAC system
(displayed in OFF only)
Program
Use this to set a daily
time/temp schedule
(displayed in HEAT or
COOL modes only)
pg6-7
Comfort setting
Use this to select
efficiency or comfort
pg8
pg12
Humidity control
Use this to select MIN
and MAX humidity
p
g
10
Consumables
UV Bulb, Filter,
and Humidifier pad
reminders
pg11

PG 4
PG 4
MANUAL Screen The Manual Screen control screen is where you can make
temporary changes to your CT80’s operation. The CT80 has 6 manual override commands. These
are accessed by pressing the +/- buttons or touching the current temperature on the HOME screen.
IMPORTANT: The Mode must be in
HEAT or COOL to access the manual screen.
Temporary OVERRIDE -
• Press the + / - buttons to select your
desired temporary Target Temperature.
• Press HOME to return to operation.
The TEMPORARY icon will display
indicating you have modied the Target
Temperature for the current Time Slot
only.
HOLD -
This will hold the target temperature
you set indenitely, until you turn it off.
Take care using the HOLD function. To
set a hold, touch HOLD to initiate a hold temperature. You can use the +/- buttons to select your hold
temperature. The HOLD icon will display on the HOME screen indicating you have changed the Target
Temperature. The system will HOLD this temperature until you return to this screen and de-select HOLD,
by touching it. (HOLD is also canceled when you change the mode ).
EMER HEAT
HOLD HOLIDAY
PROGRAM VACATION
FRESH AIR
HEAT
o
F
Vacation
preset temp
Activates
HOLIDAY
program
holiday
PROGRAM
Holds current
Target Temp
until you remove
HOLD
Current Target
Temperature
use the +/- buttons
to temporarily modify
target temp setting
FRESH AIR
for HEAT or COOL
AUX heat
for HEAT Pumps
ROOM
77o
TEMP
temp indefinitely Set-up

PG 4
PG 4
PG 5
HOLIDAY PROGRAM - This is a single program that repeats day after day until you turn it off. It
supersedes the weekly program. To modify it touch PROGRAM on the MANUAL screen. It uses the
Calendar method for programming (see pg7 ).
VACATION - This function will hold a pre-set temperature until you turn it off. The preset is saved for
next time.
FRESH AIR - If you have a fresh air bafe connected to the EX terminal, the CT80 will use this
outside air source as the 1st stage of heating or cooling. Useful in desert climates where outside air
temp can change very quickly or just to freshen indoor air quality.
EMER HEAT - This is available if you have a HEAT PUMP with auxiliary heat. When you select this
your HEAT PUMP is disabled and auxiliary heat is your sole source of heat. This manual override
setting stays active until you turn it off. (This command is not displayed if you do not have a heat
pump). Remember auxiliary heat is more expensive than the heat pump.
Run the pre-set program
The CT80 comes pre-programmed with an EPA approved program. This program was recommended
by the EPA for energy efciency. We strongly recommend that you run this program for one week,
and see if it works for you. If it does not t your needs you can always input a custom program.
• To run the EPA program, press and select HEAT or COOL with the mode selection. Set the time
and day and Press HOME. The unit is now running the EPA program.

PG 6
PG 6
MENU Functions
PROGRAM The CT80 is designed for
fast and easy programming with a simple, on-
screen interview . Just answer the
questions and the CT80 takes care of the rest.
A calendar option is also available for ne-
tuning with up to seven time slots. HEAT and
COOL are programmed separately.
Programming Using the Interview Method
(Fastest and Easiest ):
1. Make sure the CT80 is in either HEAT or
COOL using the MODE button .
2. Press MENU on the control bar and then touch PROGRAM in the upper left of the screen. The
PROGRAM BY INTERVIEW screen will come up.
3. Read each question and ll-in your answers by touching the answer in brackets <78o> to highlight
and using the +/- buttons to adjust. Press and hold +/- buttons for faster scrolling.
4. Touch (the scroll down) arrow in the lower right corner of the screen to go to the next set of
questions and continue answering. Use (scroll up) to go back to a previous question.
5. Once the interview is complete, press HOME to return to the Home screen.
If you want to change entries just go back to step 1 and modify your answers.
Scroll control
INTERVIEW SCREEN
Scroll control
Interview
Calendar

PG 6
PG 6
PG 7
The CT80 will generate a simple program for you. It will assume you are home on the weekend and
just apply your wake-up and evening temp choices. Your CT80 is now programmed and ready to go.
No additional updates are needed. If you would like to ne-tune the CT80 programming, including
adding or deleting time periods, or reviewing your schedule, please refer to the instructions that follow
regarding programming using the Calendar method.
Calendar Programming Method -
You can use the Calendar screen to review
your current CT80 schedule, or to make
changes after programming in Interview
mode. To create a whole new program:
(With the CT80 in HEAT or COOL mode)
1. Press MENU and then touch PROGRAM
in the upper left of the screen.
2. Touch the CALENDAR icon on the left
side of the screen. A schedule of time slots
with temperatures for today will appear on
the screen.
3. Select a time period or temperature by
touching it, and use the +/- buttons to adjust
up or down. (Press and hold down +/-
buttons for faster scrolling.)
<Monday>
COPY>
HEAT
7
:
00a 75
o
9 : 00a 55
o
11 : 55a 75
o
2
:
55p 85
o
MTW
I
A
B
delete
CA
L
ENDAR
SCREEN
copy these
time/temps to
the next day
DAY advance
to next day
Calendar
Interview
A
/Bselector
- use this
to make
and save
an alternate
program
touch here to
create a new
time slot

PG 8
PG 8
PROGRAM cont.
4. You can ADD additional time slots (up to seven in a day) by touching a blank line, and then
adjusting the time and temperature with the +/- buttons. To DELETE a time slot, highlight and then
touch the TRASH CAN icon in the lower left of the screen .
5. Touch the left < or right > arrows next to the day of the week to go to the next or previous day and
continue programming.
To COPY one day’s programming to the next day, touch COPY> on the bottom right of the screen.
The information for the current day will be copied to the next day and will appear on the screen.
6. Press HOME to return to the Home screen.
A/Bprogram - The CT80 can hold 2 complete weekly programs in memory. Prog A is the default. The
interview program is stored in prog A. To switch to the B program touch the A/Bicon.
COMFORT The Comfort Settings on the CT80 allow you to maintain consistent comfort with
the highest levels of temperature control precision, accuracy and energy efciency.
HVAC CYCLING: This feature allows you to set the desired variance in temperature between the
CT80 setting and the room temperature required before the heating or cooling system will turn on—
from 0.5° to 3.0° F (.25° to 1.5° C). For example, if HVAC CYCLING is set to 2.0° F and the CT80 is
set to 70°F, the heat cycle will not start until the room temperature drops to 68°. Similarly, the cooling
system will not kick-in until the room temperature increases to 72°F. The HVAC shuts off at the target.

PG 8
PG 8
PG 9
To set/adjust HVAC CYCLING:
1. Press Menu and then touch “COMFORT.”
2. Touch the temp offset setting.
3. Use the +/- buttons to raise or lower the variance setting—from 0.5° to 3.0° F.
4. Press HOME to return to the Home screen.
2nd STAGE ON AT : This feature allows you to adjust the settings that control the next stage heating,
cooling, and AUX depending upon the climate you live in (see page 18 for more information). This can
be modied for maximum efciency or comfort. It is displayed for a multistage system in HVAC SET-UP.
To set/adjust 2nd STAGE ON AT:
1. Press Menu and then touch COMFORT
2. Touch and highlight the user setting (next to 2nd STAGE ON/AUX ON AT ).
3. Use the +/- buttons to raise or lower the setting—from 2.0° to 6.0°F (1.0° to 3.0° C).
The “NEVER” option allows the user to not use AUX heat except for EMER.
4. Press HOME to return to the Home screen.
RECOVERY - ECON or FAST - In multi stage HVAC systems, ECON takes a bit longer but uses less
energy to get to the Target Temp. FAST recovery uses all available stages all the way to target temp and
uses a little more energy (see page 18 for more information).
Chirp set - Touch this to turn the audible chirp sound on or off.
F/C Set - Touch this to switch the temperature display scale from oF to oC .

PG 10
PG 10
HUMIDITY The CT80 has a humidistat to control
an external humidier for humidifying by the H terminal.
HUMIDIFR - To set a minimum humidity level (with a
humidier installed in the HVAC) from the HOME screen:
1. Press MENU, then touch the HUMIDITY
2. Toggle HUMIDIFR from <OFF> to <W/ HEAT>.
3. Touch MIN 20% and use the +/- buttons to set the
desired minimum humidity level.
4. The CT80 can be toggled <ALWAYS> run the
humidier when the humidistat calls for humidity (in
HEAT or cool with fan) or can be set to run only when
the humidistat is calling for humidity and the heat is also
running <W/ HEAT>.
DE-HUMID BY A/C - The CT80’s humidistat can also control the Air Conditioner for de-humidifying. To
set a maximum humidity level (using the air conditioner):
1. Press MENU, then touch the HUMIDITY, then view DE-HUMID by A/C.
2. Touch MAX 90% and use the +/- buttons to set the desired maximum humidity level.
(You cannot change MAX humid % until you set it to ALWAYS or HST+TST)
3. The CT80 can be toggled to <ALWAYS> run the air conditioner when the humidistat calls to de-
humidify or can be set to run the air conditioner only when the humidistat calls to de-humidify AND the
thermostat is also calling for COOL <HTS+TST> (HST=humidistat, TST=thermostat).
HUMIDIFR
HUMIDITY
DE-HUMID
BY A/C --%
<W/ HEAT>
< OFF >
OFF , AL WAYS
HST+TST
MIN20%
touch toggles
OFF, w/FAN, W/O FAN
touch toggles
MAX90% <W/FAN>
EXTERNAL
DE-HUMID
12:30pm 77 .
WED
OFF , W/ HEAT,
ALWA YS
touch toggles through