RadioThermostat CT80 Programmable Thermostat Operation Guide

RadioThermostat CT80 Programmable Thermostat

Introduction

The CT80 programmable communicating thermostat operates via a high-quality, easy-to-use touch screen. To program or adjust your CT80, simply touch your finger firmly 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 finger 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.

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.

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.

HOME Screen

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.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.

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 modified the Target Temperature for the current Time Slot only.HOLD 
This will hold the target temperature you set indefinitely, 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 ).

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 baffle 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 efficiency. We strongly recommend that you run this program for one week, and see if it works for you. If it does not fit 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.

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 fine-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 fill-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.

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 fine-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.)
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/B program – 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/B icon.

The Comfort Settings on the CT80 allow you to maintain consistent comfort with the highest levels of temperature control precision, accuracy and energy efficiency.
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.

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 modified for maximum efficiency 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).

• F/C Set – Touch this to switch the temperature display scale from oF to oC .
• Chirp set – Touch this to turn the audible chirp sound on or off.
• The CT80 has a humidistat to control an external humidifier for humidifying by the H terminal.

HUMIDIFR
 To set a minimum humidity level (with a humidifier 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 humidifier 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).

EXTERNAL DE-HUMID 
The CT80’s humidistat can also control an external de-humidifier (heat or cool), if you have a dehumidifier unit installed in your HVAC system. Connect it to the DH terminal. Default operation is to run the fan [G] with the external de-humidifier (with fan/without fan is selectable). To set a maximum humidity level:

1. Press MENU, then touch the HUMIDITY.
2. Touch MAX –% and use the +/- buttons to set the desired maximum humidity level.
3. Press HOME to return to the HOME screen.

CONSUMABLES

Consumables are parts of your HVAC system that get used up; like filters and UV bulbs. The CT80 keeps track of system run times and can be programmed to remind you when consumables, such as air filters, humidifier pads and UV bulbs, should be checked and/or changed.(HUM PAD = Run time of humidifier, AIR FILTER = Real time of HEAT+COOL, UV BULB = Real time)

To set/adjust CHECK CONSUMABLES ALERTS:

1. Press Menu and touch CONSUMABLES, and select a CHECK ALERT to set.
2. Touch the number of days in the CHECK ALERT column for that item, and use the +/- buttons to raise/lower.
   Alerts may be scheduled from 0 to 999 days.
3. Repeat for each item included in your system.
   If your system does not include a listed item, leave the CHECK ALERT at – – days.
4. Press HOME to return to the Home screen.
   When the Run Time for a given item reaches the limit  you have set, the CT80 will show you a reminder in the message area of the Home screen and the CHECK FILTER indicator will light.

LOCK

The CT80 has 3 lock features. These control the users ability to change the temperature and other settings of the CT80.
To lock and/or control the ability to change the CT80:

1. Press MENU and then touch LOCK icon in the lower right of the screen.
2. Select the desired LOCK feature by touching the function:
   PARTIAL: Limits the user to temporary override the CT80 target temp. The override is limited to ±9oF (±5oC). To change this range touch “RANGE +/-“ and using the +/- buttons to adjust up and down.
   FULL: No changes can be made.

Once LOCKED the CT80 will respond to a limited set of manual commands.
To UNLOCK :

1. Press MENU, touch and hold the LOCK icon for 10 seconds.
2. Touch UNLOCK
3. Press HOME to return to the Home screen.

CALIBRATE

Your thermostat was accurately calibrated at the factory to ±1° F of actual ambient temperature. You do have the option, however, to change the display temperature to match that of a previous thermostat, or to match another thermostat already in your home, from ±1 – 9°F.

To change your Thermostat Calibration: 

1. Press MENU and then touch CALIBRATE.
2. Use the + / – buttons to adjust the displayed temperature up or down, as desired.
3. The DELTA FACTOR that appears on the screen will also automatically increase or decrease for each 1°F adjustment. The large display will show the modified temperature reading that will be displayed on the HOME screen in normal operation.
4. Press HOME to return to the Home screen.
   LCD Screen CONTRAST can be adjusted.
   To change LCD Screen CONTRAST

From the CALIBRATE screen:

1. Select CONTRAST and adjust by touching the on-screen < and > controls for best viewing.
2. Press HOME to return to the Home screen.
   NIGHT LIGHT turns on/off the night light function of the backlight.

Save Energy Button

The “Save Energy” feature on the CT80 provides a simple, easy-to-use way to help you manage your energy use. SAVE ENERGY automatically adjusts your target temperature to the lowest setting in the current program.

• To use Save Energy, simply press Save Energy button in the upper left corner of the unit.
• To return to normal operation, press the “Save Energy” button again, and the TARGET TEMP will return to the programmed temperature.

FAN control

To view the fan status, touch the FAN icon located at the top center of the HOME screen.

AUTO: The fan control is normally set to AUTO mode, meaning that the fan operates automatically.
CIRC: The CIRC function allows your fan to automatically circulate air for up to nine minutes per hour for better indoor air quality and efficiency.
FRESH: If your HVAC system has a fresh air baffle, touch FRESH to use fresh air with HVAC. This works with AUTO or ON. The fresh air baffle must be connected to the EX terminal on the CT80.
ON: To manually turn ON the fan, touch the FAN icon and then touch ON. The FAN icon will begin turning and the fan will run continuously until switched to AUTO. Fan ON function is available in OFF mode to allow simple ventilating.

POWER BUTTON and MODE selection

The power button brings up your mode selection options: COOL HEAT AUTO OFF

• COOL – This will operate the cooling portion of your HVAC system until it is turned off.
• HEAT – This will operate the heating portion of your HVAC system until it is turned off.
• AUTO – The CT80 TRUE AUTO mode switches automatically between HEAT and COOL throughout the year. Unlike other manufacturers, the CT80 TRUE AUTO has no temperature or time limitations (Patented), just program your desired HEAT and COOL temps and then select the AUTO mode. The CT80 will switch from HEAT to COOL as needed.
• OFF- This takes your HVAC system “off-line” and it will not control HVAC functions. In this mode your house may experience extreme heat or cold.
• The HVAC STATUS indicators – These show what HVAC function is active. Orange for HEAT function is active, blue for COOL function, and green when the fan is active.
• RESET button – The RESET button reboots the CT80 processor. It does not effect the user programs that have been stored in permanent memory.

NETWORK
The NETWORK button allows you to identify the network you are connected with and further manage your settings. You can connect your CT80 to an AMI network for In Home Display of electric meter data or connect to a Home Automation network for HA functionality with remote access to your HVAC system and home conditions.

To Insert a RTM-1 radio module:

1. Power off the CT80.
2. Insert the radio module in right side slot on the back of the CT80 first.
3. Power up CT80.
   NOTE: DO NOT HOT SWAP RTM-1 USNAP modules this can damage the thermostat or radio modules.

To MATE to a network:

1. Select MENU, then NETWORK.
2. Make sure the network is ON.
3. Select the Radio Icon for the radio you want to mate with the network.
4. Touch Mate. Initiate the mating procedure on the network device side. Wait for radios to sync.
5. The CT80 will display the net name (network name) it is connected to under “network”.

INFORMATION

This MENU function displays information and interactive screens from a network source. The network can display interactive information screens, poll users, and display electrical rate and usage information from your utility or enabled power meter.
Home automation systems can also utilize the INFORMATION function for interactive and informative messages. They can display text and alphanumeric information on energy use, HVAC status, and other network connectivity.
These messages are generated by another network source and displayed on the CT80. Consult your AMI or Home Automation network documentation for further information.

Communicating Thermostat 

The CT80 has 2 RTM-1 radio ports. These allow your thermostat to communicate with other systems. Alarm systems using the Z-Wave standard take advantage of the CT80s control and monitoring features.
Depending on your area of Power Company, programs may be available to connect your thermostat to power grid status information. This can make it easy for you to moderate your energy use at peak hours and use power when it is less expensive.
The RTM-1 ports also allow you to connect your CT80 to your home WiFi network. This can give you access to your home’s HVAC system even when you are away. It can also give you access to web-based efficient energy management sites that can help you save money and protect the environment.

REFERENCE:

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RadioThermostat CT80 Programmable Thermostat Operation Guide

RadioThermostat CT80 Programmable Thermostat Operation Guide