Use and Care Manual

ManualsBrandsRadio Thermostat ManualsHeating, Ventilation, and Air Conditioning7-Day Wi-Fi Module Programmable Thermostat

PG 1

Operation Guide CT50

To turn your CT50 ON, press the MODE button on the right side. This

cycles the CT50 through HEAT, COOL, AUTO and OFF modes.

The CT50 programmable communicating

thermostat operates via a high-quality, easy-

to-use touch screen. To program or adjust your

CT50, simply touch your nger rmly to the

screen. The screen will automatically light up and

you will hear a “beep.” The screen will respond

differently to different types of touches, so you

may want to experiment by touching it different

ways, nger, ngernail, etc. Do not use a sharp or

metallic device; it will scratch the screen.

ENGLISH

Statement of use: 100% Compatible with all popular

residential HVAC systems; 24VAC single, two stage

conventional heating systems (gas/oil/electric), heat

pumps, single stage or with auxiliary heat (electric

or fossil), zoned forced air and zoned hot water (2

or 3 wire), millivolt systems (with a 18-24 AC or DC

source), one or two stage cooling, and hybrid systems.

1014-011-001

Save

Energy

button

Insulation

indicator

top cover

Touch screen

Wire

terminals

Mode

button

Fan

button

PROG

butto

Reset

button

HVAC

selection

switches

bottom

cover

LINK

RAD

TARGET

TEMP

COOL

butto

Summary of content (17 pages)

PAGE 1
PG 1 Operation Guide CT50 To turn your CT50 ON, press the MODE button on the right side. This cycles the CT50 through HEAT, COOL, AUTO and OFF modes. The CT50 programmable communicating thermostat operates via a high-quality, easyto-use touch screen. To program or adjust your CT50, simply touch your finger firmly to the screen. The screen will automatically light up and you will hear a “beep.
PAGE 2
PG 2 HOME Screen Control Screens Before you operate the CT50 please get familiar with these basic control screens. All the CT50 functions are accessed through these screens: HOME, MENU, PROGRAM and MANUAL. The CT50 touch screen technology allows you to select (by touching) an item and change it using the +/- arrows or the time arrows. The simple HOME screen is displayed when the unit is operating. Touching the HOME icon on another screen will always return you to this screen.
PAGE 3
MENU Screen The MENU screen is the gateway to many functions or settings of the CT50. It is displayed when you press the MENU button. [See page 10 for details] Set Time Touch this area to set the time of day. Left arrow goes back, right arrow goes forward. Differential to set for 2nd Stage start. Temperature Swing set Chirp set Touch this to turn the audible chirp on or off. Filter Timer set Touch and hold 5 sec to change.
PAGE 4
PROGRAM Screen The PROGRAM screen sets the CT50 control for your home HVAC system. Press PROG for to access it. After that it is displayed when you press the PROG button. [See page 8 for details] Return HOME When programming is complete touch this to run your program and return to the HOME screen. Set Time Slot Touch this area to set the Time Slot you want to program. Set Program Time Touch this area to set the time of day you want each time period to start. Left arrow goes back, right arrow goes forward.
PAGE 5
MANUAL Screen The Manual Screen control screen is where you can make temporary changes to your CT50’s operation. From the Full HOME screen, touch the main temperature display to use this screen. [See page 13 for details] Room Temperature Target Temperature Manual Override Indicator Shows TEMPORARY when you have modified the Target Temperature Temp Up / Temp Down arrows Touch these to raise and lower the manual override Target Temp.
PAGE 6
PG Simple HOME Screen Make this simple HOME screen the default for your CT50, switch the mode to OFF and hold the PROG button for 12 seconds. This Simple HOME screen gives you limited access to the CT50’s features, only the target temp can be changed. [To return to the regular HOME screen switch the mode to OFF and hold the PROG button for 12 seconds.
PAGE 7
Initial Settings Press MENU to access the following commands (from HOME screen). Set day of the week Touch the Day of the week area to cycle through the days of the week to select the current day. Set time of day Touch the Time of Day arrows to move the time selection forward or backward until it displays the current time. Touch and hold for faster setting. Set oF-oC display Touch the oF and it will toggle to oC.
PAGE 8
PG Run Program The CT50 comes pre-programmed with an EPA approved program. This program is recommended by the EPA for energy efficiency. We strongly recommend that you Auto-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, set the mode switch to HEAT or COOL. Press the MENU button and use the arrows by the time display to set the time. Touch the DAY area and advance it to select the present day.
PAGE 9
PROGRAM cont. Select the day you want to program. The day of the week starts at SU - Sunday and can be advanced to the day you want to program. Touch the day of the week area to cycle through the days of the week to the desired day. Select the time slot (period) you want to program (MORN, DAY, EVEN, NITE). Touch the time slot area to cycle through to the desired period. Select the desired start time of that time slot. Touch the time arrows to select the desired period’s starting time.
PAGE 10
PG MENU Screen Functions Press MENU to bring up MENU screen. TIME of DAY Touch the left (backward) or right (forward) arrows next to the time display to set the current time (1 minute per touch). Touch and hold the arrow for fast time set (15 minute jumps). DAY of Week Touch DAY area to select present day.
PAGE 11
F C Set - Touch this to change the temperature display scale from oF to oC . FILTER - AIR FILTER ALERT - The CT50 can be programmed to remind you when the HVAC sytem’s air filter needs changing. Touch FILTER. The display will show the usage to date. Touch FILTER for over 3 seconds and the display will change to LIMIT. Touch arrows to set desired usage limit before filter alert comes on home screen. When this limit is reached, FILTER will be on home screen and the CHECK FILTER indicator lights.
PAGE 12
PG 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. The range of change is from -6°F to +6°F or -3°C to +3°C. To change your Thermostat Calibration, touch MENU and then touch CALIBRATE. Use the + / - to adjust the displayed temperature up or down, as desired.
PAGE 13
MANUAL Screen Functions The CT50 has 4 manual override commands. The manual screen is accessed by touching the large current temperature display in the middle of the HOME screen. IMPORTANT: The Mode must be in HEAT or COOL to access the manual screen. TEMPORARY override Touch the + / - arrows to select your desired temporary Target Temperature. Touch HOME to return to operation. The TEMPORARY icon will display indicating you have modified the Target Temperature for the current Time Slot only.
PAGE 14
PG weekly program. To use it touch HOLIDAY on the temporary screen. The default holiday program is shown here [Default program: HEAT 70oF all day and 62oF at night. COOL 78oF all day and 82oF at night.] To modify this program, touch the PROGRAM button and then touch the DAY area until HOLIDAY appears (after SAT). The default HOLIDAY program is set as 2 time slots; all day (same target MORN, DAY and EVEN) and a different target for NITE.
PAGE 15
MODE Button The mode button sets the CT50 to HEAT, COOL, AUTO, or OFF modes. Press it once to step to the next mode. If the CT50 is in OFF and you want to return to the mode you were previously in, touch the OFF indicator on screen. 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 CT50 TRUE AUTO mode switches automatically between heat and cool throughout the year.
PAGE 16
PG Simple Screen This display mode limits the amount of information on screen and limits the functions to just the +/- arrows and the MENU button. To set, with mode in OFF and ... Hold down the PROGRAM button for 12 seconds to access the limited display screen. Hold down the PROGRAM button for 12 seconds to leave the limited display screen. RESET button The RESET button re-boots the CT50 processor. It does not effect the user programs that have been stored in permanent memory.
PAGE 17
USNAP radio Communicating Thermostat The CT50 has 2 USNAP radio ports. These allow your thermostat to communicate with other systems. Using USNAP Radios The USNAP ports allow you to connect your CT50 to your home WiFi network. This can give you access to your home’s HVAC system even when you are away [with additional web service]. It can also give you access to web based efficient energy management sites that can help you save money and protect the environment.