Radio Thermostat CT110 User manual

The CT110 communicating thermostat operates via
a high-quality, easy-to-use radio interface. After you
have joined to your Z-Wave network you can control
it from phone apps or the web.
Without a radio connection you can locally set or
adjust your CT110, simply press the buttons on
the side of the unit. The screen will automatically
light up and you will hear a “beep.” There are ve
buttons on the unit - +, -, FAN, MODE, and RESET.
Statement of use: 100% Compatible with all popular
residential HVAC systems; 24VAC single, two stage
conventional heating systems (gas/oil/electric), heat pumps
with up to two stages of heat and two stage auxiliary
heat(electric or fossil), zoned forced air and zoned hot water
(2 or 3 wire), millivolt systems (with a 12-24 AC or DC source),
one or two stage cooling, and hybrid systems.
1308-002-001 ENGLISH
OPERATION
Operation Guide CT110
Temperature
adjust buttons
Z-Wave join
Button
MODE
button
FAN
button

PG 2
HOME Screen
Before you operate the CT110 please get familiar with these basic control screens. All the CT110
functions are accessed through these screens: HOME, and CONFIG. The CT110 radio control
technology allows you to congure your thermostat.
The HOME screen is displayed when the unit is
operating.
To set a Mode:
Press the mode button (on the top). The CT110
will step through the modes HEAT, OFF, COOL,
OFF, AUTO, OFF in order.
To Change the current temperature target use
the +/- buttons on the right side of the CT110.
Initial settings
TIME of DAY - This can be adjusted in the settings area of the web interface and displays in
12:00 or 24:00 format.
SWING - This can be set in the settings area of the web interface.
SWING controls how frequently your HVAC comes on. This feature allows you to set the desired
variance in temperature between the CT110 setting and the room temperature required before
the heating or cooling system will turn on—Swing range: 0.5 to 2.0°F (.25 to 1°C). For example,
if SWING is set to 2.0°F and the CT110 is set to 70°F Target Temperature, the heat cycle will
start when room temperature drops to 68°F. Similarly, the cooling system will start when the room
temperature increases to 72°F. The HVAC then runs and will shut off at the Target Temperature.
You can set the SWING from 0.5° to 4.0°F (.5 to 2°C). The HVAC will run more frequently at .5°F and
less at 4°F. Default is 1°F.
Differential - This can be set in the settings area of the web interface. (Used for multiple stage
systems only, not displayed for single stage) The differential is the number of degrees between
the room temperature and the Target Temperature at which the 2nd stage will be used. Default is
2°F , range is 2°F to 6°F (1°- 3°C). Recommend 2°F for very cold climates and the 4°F for warm
climates and 6°F for hot climates.
Time
of Day
Current Room
Temperature
Fan
Thermostat
mode
Radio
Target
Temperature
F/C

PG 3
Initial settings
TIME of DAY - This can be adjusted in the settings area of the web interface and displays in
12:00 or 24:00 format.
SWING - This can be set in the settings area of the web interface.
SWING controls how frequently your HVAC comes on. This feature allows you to set the desired
variance in temperature between the CT110 setting and the room temperature required before
the heating or cooling system will turn on—Swing range: 0.5 to 2.0°F (.25 to 1°C). For example,
if SWING is set to 2.0°F and the CT110 is set to 70°F Target Temperature, the heat cycle will
start when room temperature drops to 68°F. Similarly, the cooling system will start when the room
temperature increases to 72°F. The HVAC then runs and will shut off at the Target Temperature.
You can set the SWING from 0.5° to 4.0°F (.5 to 2°C). The HVAC will run more frequently at .5°F and
less at 4°F. Default is 1°F.
Differential - This can be set in the settings area of the web interface. (Used for multiple stage
systems only, not displayed for single stage) The differential is the number of degrees between
the room temperature and the Target Temperature at which the 2nd stage will be used. Default is
2°F , range is 2°F to 6°F (1°- 3°C). Recommend 2°F for very cold climates and the 4°F for warm
climates and 6°F for hot climates.

PG 4
Remote Access Features
or set - Toggle this to switch the temperature display scale from oF to oC .
LOCK - From the settings screen of the web interface, click the icon and select lock. In lock,
no changes can be made at the thermostat. Once locked, the CT110 will not respond to any local
controls and the icon will be displayed.
To UNLOCK - Deselect FULL lock on the web interface.
Compressor Delay - The CT110 has a minimum cycle time of 4 minutes to protect your
compressor in cool and in heat pump (if you have one). During this time and the compressor will not
come on until the 4 minute delay is over.“Cd” is displayed during a delay.
EMER (when congured for HEAT PUMP) If you set your CT110 for HEAT PUMP with auxiliary
heat, EMER function is available on the web interface. If you click EMER, your HEAT PUMP is
disabled and auxiliary heat is your sole source of heat. This manual override stays active until you
toggle EMER off. Auxiliary heat is more expensive than the heat pump so use EMER only if the
heat pump cannot keep up or is defective.
HOLD - Accessed from the web interface, this will hold the current Target temperature indenitely
Physical Buttons
TEMPERATURE - Touch the +/- buttons to select your desired Target Temperature. If you create a
program on the web, this temporary change in target will revert to the programmed target at the next
time slot.
mode button - The mode button sets the CT110 to HEAT, COOL, or OFF modes. Press it
once to step through OFF to the next mode: HEAT -> OFF-> COOL -> OFF , etc. AUTO mode is
only accessible from the web interface - AUTO mode will automatically switch the CT110 from HEAT
to COOL depending on the temperature trend in your house.
(fan) button - The fan button toggles the fan from AUTO to ON modes. The control is normally
in the auto mode shown by this icon, . This means that the fan operates automatically with the
HVAC system and the thermostat. When the fan button is pressed the fan goes on and the icon
will blink; the fan will run continuously in this manual override until switched back to auto by pressing
the FAN button again. These functions can also be accessed from the web interface.
[NOTE: Fan ON function is available in the OFF mode to allow simple ventilating.]
Z-Wave join Button - Use to connect to a network. See Install section for details.
RESET button - The RESET button re-boots the CT110 processor. It does not effect the target
temperatures that have been stored in permanent memory. You must use a paperclip to press
RESET switch inside the CT110.

PG 5
Remote Access Features
or set - Toggle this to switch the temperature display scale from oF to oC .
LOCK - From the settings screen of the web interface, click the icon and select lock. In lock,
no changes can be made at the thermostat. Once locked, the CT110 will not respond to any local
controls and the icon will be displayed.
To UNLOCK - Deselect FULL lock on the web interface.
Compressor Delay - The CT110 has a minimum cycle time of 4 minutes to protect your
compressor in cool and in heat pump (if you have one). During this time and the compressor will not
come on until the 4 minute delay is over.“Cd” is displayed during a delay.
EMER (when congured for HEAT PUMP) If you set your CT110 for HEAT PUMP with auxiliary
heat, EMER function is available on the web interface. If you click EMER, your HEAT PUMP is
disabled and auxiliary heat is your sole source of heat. This manual override stays active until you
toggle EMER off. Auxiliary heat is more expensive than the heat pump so use EMER only if the
heat pump cannot keep up or is defective.
HOLD - Accessed from the web interface, this will hold the current Target temperature indenitely

PG 6
until HOLD is turned off.
SAVE ENERGY - Accessed from the web interface, this function sets the target temperature to teh
lowest consuming point in the current program, or a simple 4 deg offset if no program is present.
Message and Time - This shows the time and various messages during operation.
Settings - This is displayed when setting the HVAC conguration during installation.
Fan - This shows if the fan is ON (blinking) or in AUTO.
HEAT PUMP - This is displayed of your system is congured for HEAT Pump Operation. In a multi-
stage Heat pump the number 2 is displayed when the second stage is operational.
COOL - This is displayed when the CT110 is in Cool mode. Blinking when active.
HEAT - This is displayed when the CT110 is congured for conventional heat. In a multi-stage
Heating system the number 2 is displayed when the second stage is operational. Blinking when

PG 7
active.
Battery Status - This is displayed when the
battery power is low. It is very important to replace
batteries as soon as this is displayed.
LOCK - This is displayed when the CT110 is in
Lock. The unit must be unlocked from the web
interface.
Radio - This is displayed when the CT110 is
connected to a network. The radiators blink when
transmitting or receiving.
Heat Pump EMER - This is displayed by the ! mark next to the HEAT icon. Blinking when active.
Fan Heat
Pump
Cool
Heat
Aux Heat
Humidity
F/C
Battery
Lock
Radio
Message
and Time
Settings
Target
Temperature