INSTEON 2441ZTH User manual

Page 1 of 24 Rev: 8/30/2012 11:41 AM
INSTEON®Wireless Thermostat
Owner Manual (#2441ZTH)

Page 2 of 24 Rev: 8/30/2012 11:41 AM
About INSTEON Wireless Thermostat 3
INSTEON Wireless Thermostat – Features and Benefits 3
What’s in the Box? 3
INSTEON Wireless Thermostat Button Overview 4
INSTEON Wireless Thermostat Operation and Programming 5
Mode Button Operation 5
Energy Button Operation 6
Set Button Operation 7
Time/Sensor Button Operations 7
Program Button Operation 8
Fan and Hold Button Operations 9
Master Button Operation 10
Installation 10
Tools Needed 10
Preparation 10
Test Operation 11
Adding INSTEON Wireless Thermostat 11
INSTEON Programming 12
Add INSTEON Wireless Thermostat as a Controller 12
Remove INSTEON Wireless Thermostat as a Controller 13
User Setup Mode Overview 15
User Setup Mode 17
Temperature and Humidity Calibration Modes 18
Advanced 2-Stage Heating or Cooling Systems 19
Factory Reset 19
Specifications 20
Troubleshooting 22
Certification and Warranty 23
FCC and Industry Canada Compliance Statement 23
Limited Warranty 23
Limitations 23

Page 3 of 24 Rev: 8/30/2012 11:41 AM
About INSTEON Wireless Thermostat
INSTEON Wireless Thermostat is a wireless, battery-operated, one-day programmable, INSTEON-
compatible thermostat. INSTEON Wireless Thermostat includes a humidity sensor and the ability to
communicate via RF to other INSTEON devices, including INSTEON Thermostat.
INSTEON Wireless Thermostat is not directly wired to the HVAC (Heating Ventilating and Air
Conditioning) system. If you want to control the HVAC system with INSTEON Wireless Thermostat, you
need to install at least one INSTEON Thermostat, then link INSTEON Wireless Thermostat as a wireless
controller of INSTEON Thermostat.
INSTEON Wireless Thermostat may also be used as a standalone INSTEON controller of other
INSTEON responders, activating scenes to turn on standalone heaters and fans based on room
temperature status.
Expand your INSTEON thermostat system by creating extra temperature zones in your home with
additional INSTEON Wireless Thermostats. Simply link each accessory INSTEON Wireless Thermostat to
your main INSTEON Thermostat and primary INSTEON Wireless Thermostat.
INSTEON Wireless Thermostat – Features and Benefits
•Installs in minutes in included tabletop stand (can also be wall-mounted)
•Can be added to scenes as a controller of INSTEON devices
•Saves energy and money on bills by remotely controlling and automating your thermostat
•Communicates wirelessly over radio frequency (RF)
•Can automatically control INSTEON devices and activate scenes when specified temperatures,
humidity levels or A/C or heating modes are detected
•Reports changes in thermostat modes, temperature, humidity, setpoints and fan to compatible
automation controllers or software
•Stores setup state in non-volatile memory so settings aren’t lost during battery changes or power
outages
•Two-year warranty
•Battery features:
oGoes into battery-saving standby mode one minute after last button press
oWakes up every minute to get current local temp info, which remains displayed in
standby
oLow battery warning beeper
oBroadcasts temperature or humidity changes to other connected devices
•When connected to always-on power supply:
oRemains awake always rather than going to standby
oParticipates in the INSTEON network as a message hopper
oGood for hard-to-reach locations where battery changes may be difficult
What’s in the Box?
•INSTEON Wireless Thermostat
•Quick Start Guide
•Tabletop stand (removable for wall-mounting)

Page 4 of 24 Rev: 8/30/2012 11:41 AM
INSTEON Wireless Thermostat
The gray buttons
are under the
INSTEON
Thermostat door
Cool setpoint
Heat setpoint
Programmed
auto state
Humidity level
Time
Current
temperature
Temperature of remote
sensors or zone thermostats
position 1 and position 2
(up to 2)
Current
thermostat
mode:
Off, Auto,
Heat or Cool
INSTEON Wireless Thermostat Button Overview
1) Up/Down adjusts the temperature setpoint based on the current mode.
2) Mode allows the user to select the current operational mode of the HVAC system. It cycles
between Off, Heat, Cool, Auto and Programmed Auto.
3) Energy button is a quick option that saves energy (and money). When pressed, it sets back the
setpoint by a specified value. The default value is 4° from the current setting. To change the
default offset value to be a value other than 4°, you must use software, such as HouseLinc.
4) Hold overrides a pre-programmed mode.
5) Fan cycles between Auto and Always On – no indication given for “Auto Fan.”
6) Master makes this device the master temperature controller. Pressing and holding “Master” does
not alter any scene or screen settings. It just defines this INSTEON Wireless Thermostat as the
master temperature controller.
7) Time/Sensor button allows you to set the date and time. It cycles between hour, minute and time
format.
8) Program button allows you to setup the various pre-programmed user modes.
9) Set button adds and removes INSTEON Wireless Thermostat from scenes. It functions like the
Set button on other INSTEON devices.
2
1
4
5
6
7
8
9
3

Page 5 of 24 Rev: 8/30/2012 11:41 AM
INSTEON Wireless Thermostat Operation and Programming
Mode Button Operation
Off Mode:
•No setpoints are shown
•Up/Down arrows do not do anything
Heat Mode:
•Only Heat setpoint is shown
•Up/Down arrows change Heat setpoint
Cool Mode:
•Only Cool setpoint is shown
•Up/Down arrows change Cool setpoint
Auto Mode:
•Both Cool and Heat setpoints are shown
•Up/Down arrows increase or decrease
values by the same amount
Programmed Auto Mode:
•The program mode is active as indicated by
the return annotation
•The time of day annotation is not displayed
in the other four modes (Off, Heat, Cool or
Auto)
•Both Cool and Heat setpoints are shown
•Up/Down arrows increase or decrease
values by the same amount
•When the thermostat moves to the next
time period, the setpoints will be adjusted
accordingly
Note:
•To adjust the gap between setpoints in Auto mode, press Mode to select Heat and set the
temperature you desire. Press Mode again to select Cool and set the temperature you desire.
Press Mode a third time to return to Auto; the settings will reflect your changes.
•If you set Heat and Cool to the same temperature, Heat will automatically move down 2° (the
minimum allowable gap).

Page 6 of 24 Rev: 8/30/2012 11:41 AM
Energy Button Operation
The Energy button (designated with the leaf) is a quick, efficient energy-saving option. When you press
the Energy button, INSTEON Wireless Thermostat will adjust the Heat and Cool setpoints by a specified
value. The default value is 4° from the current setting, but can be changed via home control software
such as HouseLinc.
•When you exit Energy mode, it will revert back the 4° that was changed upon entry.
•The unit remains in Energy mode until the Energy button is pressed again.
•Up/Down arrows adjust the temperature setpoint based on the mode you are in.
From Off Mode:
•Energy button does nothing because the
system is off (at maximum energy savings
already)
•When “Energy” appears on the screen for
Auto, Cool and Heat Modes, the 4°
setback is engaged
From Heat Mode:
•Heat setback as specified
•Default setback is 4° less
•Notice that “Heating” is active on the left,
but not on the right since the setpoint is
lower that the actual temperature; the
element reads “Heat”
From Cool Mode:
•Cool setback as specified
•Default setback is 4° more
From Auto Mode:
•Both Heat and Cool setpoints changed as
specified
•Default setback is 4° more for Cooling and
4° less for Heating
•Notice that “Heating” is active on the left,
but not on the right since the setpoint is
lower that the actual temperature; the
element reads “Heat”

Page 7 of 24 Rev: 8/30/2012 11:41 AM
From Programmed Auto Mode:
•Both Heat and Cool setpoints changed as
specified
•Default setback is 4°
•Notice that ”Heating” is active on the left,
but not on the right since the setpoint is
lower than the current temperature; the
element reads “Heat”
Note: Onscreen text displaying “Heat” changes to “Heating” and “Cool” changes to “Cooling” to indicate
HVAC system is active.
Set Button Operation
The Set button adds and removes INSTEON Thermostat from INSTEON scenes. It functions like the Set
button on other INSTEON devices.
Time/Sensor Button Operations
•The Time/Sensor button allows the user to set the time and clock format.
•It cycles among hour, minute and 12-/24-hour format. Note: When added to a Scene with INSTEON
Thermostat, INSTEON Wireless Thermostat automatically retrieves time settings.
•Up/Down arrows cycle through the available options.
•Go to the next Time/Sensor step by pressing Time/Sensor button again.
•Exit Time/Sensor setup by:
- Letting it time out after 4 minutes.
- Pressing Mode button
IMPORTANT! Once you have Added INSTEON Wireless Thermostat to a scene in INSTEON Thermostat
as a wireless temperature zone, the Time/Sensor button will allow you to change time format but time
information will be provided by the INSTEON Thermostat.
Note: Colors indicate element that is presently blinking during setting procedure.
First press of Time/Sensor:
Hours settings
•Up/Down arrows cycle through time in 1-
hour increments
•Pressing and holding Up/Down arrows
cycles through faster
Note: AM/PM changes automatically as needed.
Second press of Time/Sensor:
Minutes settings
•Up/Down arrows cycle through time in 1-
minute increments
•Pressing and holding Up/Down arrows
cycles through faster

Page 8 of 24 Rev: 8/30/2012 11:41 AM
Third press of Time/Sensor:
Clock Format setting (12- or 24-Hour clock)
•Entire time line blinks
•Up/Down arrows cycle between 12- and 24-hour clock format
Note: AM/PM is not displayed when in 24-hour format.
Program Button Operation
•The Program button allows you to set up the various preprogrammed modes (Wake, Leave, Return
and Sleep).
•Go to the next step by pressing Program again.
•Exit Program setup by:
- Letting it time out after 4 minutes.
- Pressing Mode button
IMPORTANT! Once you have added INSTEON Wireless Thermostat to a scene in INSTEON Thermostat
as a wireless temperature zone, the Program button will no longer function. All program controls will be
performed on the INSTEON Thermostat.
Note: Text colors below indicate element that is presently blinking during setting procedure.
First press of Program:
Selects from available pre-program modes
Up/Down arrows cycle through Wake, Leave, Return and Sleep.
NOTE:
•Energy is not a part of this option
•Once a preprogrammed mode is selected, that item remains displayed throughout to
indicate the mode you are programming
•The current mode settings are displayed on the thermostat at each setup step
Second press of Program:
Start Time
•Up/Down arrows cycle through time in 15-minute increments. Note: when pressing the Down arrow, if
you come within 15 minutes of another preprogrammed mode time, you will not be able to increase
the time any further.
•Pressing and holding Up/Down arrows cycles through faster
Note: AM/PM changes automatically as needed.
Note: The start of one program mode is also the end of the previous program mode.

Page 9 of 24 Rev: 8/30/2012 11:41 AM
Third press of Program:
Cool setpoint
•Up/Down arrows cycle through temperature
Fourth press of Program:
Heat setpoint
•Up/Down arrows cycle through temperature
Fifth press of Program:
Restarts the process to program another Mode/Day.
NOTE: The four modes come preprogrammed. The defaults are for all days:
Day
Modes Start Time Thermostat Mode
Heat
Setting
Cool
Setting
Wake 6:00AM Auto 65 75
Leave 8:30AM Auto 60 80
Return 5:00PM Auto 65 75
Sleep 11:00PM Auto 60 80
Note: To exit program setup mode, press Mode button once.
Fan and Hold Button Operations
Fan button operations
•The Fan button cycles between Auto and Always On.
•On the display, it simply indicates the text “Fan Always” when selected. There is no text for Auto.
Hold button operations
•The Hold button overrides a preprogrammed mode until Hold is turned off.

Page 10 of 24 Rev: 8/30/2012 11:41 AM
IMPORTANT:
•While Hold is enabled, the next preprogrammed time that comes in Preprogrammed Auto Mode will
be ignored.
•While Hold is enabled, the preprogrammed time notations are not shown (i.e. Wake, Leave, Return
and Sleep).
•Hold can be remotely enabled/disabled from an INSTEON controller.
Master Button Operation
First press and hold:
Makes the local INSTEON Wireless Thermostat the master temperature controller
•To perform this, press and hold Master button for 3 seconds.
INSTEON Wireless Thermostat will beep once.
•Release.
Note: This is only valid if INSTEON Wireless Thermostat is linked to a INSTEON Thermostat.
Before pressing Master button:
•Notice that the left remote sensor is currently
the Master temperature controller
After pressing and holding Master button:
•Notice that the left remote sensor is no
longer the Master temperature controller
•The local INSTEON Wireless Thermostat is
now the Master controlling temperature
Note: If no INSTEON scene is programmed to an INSTEON Wireless Thermostat, pressing and holding
for 3 seconds will have no function.
Installation
CAUTIONS AND WARNINGS
Read and understand these instructions before installing and retain them for future reference.
Tools Needed
•INSTEON Wireless Thermostat will primarily be used as a tabletop thermostat
•You may also wall-mount INSTEON Wireless Thermostat using the slotted holes in the back cover1
Preparation
Follow these steps to properly install INSTEON Wireless Thermostat Thermostat. This thermostat will
mainly be used on a tabletop; wall mounting is optional.
1Screws and wall anchors not provided