ABB ABB-free@home TH-1.1 User manual

2CQA 100 014 B0001 │2018-09-28
Product Manual
ABB-free@home™
TH-1.1 ABB Thermostat

Table of Contents
Product Manual 2CQA 100 014 B0001 │2018-09-28 │2
table of c o ntent s
1TheDevice...........................................................................................................................................3
1.1 FunctionOverview.....................................................................................................................3
1.2 Always-ON Functions.................................................................................................................4
2Addingthe Thermostat..........................................................................................................................5
3Configuring the Thermostat...................................................................................................................8
3.1 Thermostat Settings...................................................................................................................8
4Technical Data...................................................................................................................................16
4.1 Technical Data.........................................................................................................................16
4.2 Wiring Connection ...................................................................................................................16
4.3 Supported Equipment ..............................................................................................................17
5Resetting the Device...........................................................................................................................18

The Device
Product Manual 2CQA 100 014 B0001 │2018-09-28 │3
1The Device
This section contains a short overview of the display and hardware functions of the device.
1.1 Function Overview
Heating & Cooling Indicators
Red and blue semi-circles indicate if device is heating (red), cooling
(blue), or idle (both off).
Room Temperature
Large number in middle of display shows current home temperature.
Setpoint Temperature
Small number above large number is desired temperature. Use arrows
to change. Both setpoint and arrows appear when your hand nears
device. Note: Setpoint can be changed in device settings.
Settings
Tap to activate or deactivate function. Switchbetween “active view”
and “settings view”.
Heating & Cooling
Tap to enable or disable heating/cooling mode.
Fan
Fan can be set to ON or AUTO mode. By default, it is in AUTO mode.
Tap to turn ON the fan.

The Device
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Eco
At night or when operator is away, device can be set to save energy.
Tap to activate. Setpoint is automatically decreased (for heating) or
increased (for cooling).
ON/OFF
Tap to turn Thermostat ON/OFF and to turn ON/OFF all appliances
connected to it. Only House Protection function remains active.
Accessory Appliance
Tap to activate or deactivate an additional function, (i.e. humidifier or
de-humidifier).
Auxiliary heating / Emergency Heating
Use only if heat pump is controlled. If symbol is ON, auxiliary heating
is enabled. Auxiliary heating allows supplemental source (electric or
gas heater) to support heat pump if needed. Auxiliary heating can be
enabled manually by user or automatically by HVAC control.
Press and hold symbol for 3 seconds to activate “Emergency Heating”.
Use to heat house but prevent compressor from turning ON. Use when
compressor is defective or iced due to extreme winter temperatures.
Symbol will blink when Emergency Heating is active.
House Protection
Indicates heating/cooling was turned ON automatically to protect
HVAC from overload and home from extreme hot or cold temperatures
for one of these reasons: 1) To protect house from freezing or
overheating; or 2) To protect HVAC equipment from overload or
damage. House Protection stays ON, activate in settings.
1.2
Always
-
ON
Functions
Proximity Sensor As the user’s hand approaches the display, it wakes-up and
shows touch controls. Proximity sensor is located near bottom
of device.
Self-Adjusting Display Brightness Display adapts to fit light level of room. Brightness level can be
changed in settings.
Tab.1: >>Always-ON Functions<<

Adding the Thermostat
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2Adding the Thermostat
STEP 1: Install the Thermostat
WARNING: Installation must be performed by a licensed HVAC installer or electrical
professional. Improper installation can cause property damage, personal injury, or loss of life.
Install the device by following the Operating Instructionsand Wiring Guide included in the
original packaging. After wiring is complete, take a photo of the connected wires and save for
future use.
Note: When first powered, the device is in discovery mode for 30 minutes. This time period
allows the SysAP to see and connect to the device. During this time, the user can login to the
SysAP and add the device to the free@home network. If the Thermostat has been assigned to
a different SysAP, it will need to be reset. Please see here for instructions.
STEP 2: Open configuration and search for the Thermostat
Ensure that the SysAP is in Access Point mode by pressing the button on the SysAP. The
indicator light will turn solid blue. Connect to the SysAP by selecting it from the list in your
wireless network.
Once connected, open a browser and enter 192.168.2.1 in the address line.
If you have a tablet, use the free@home App.
Note: it is not possible to set up the Thermostat by using a smartphone.
Log in as a user that has configuration rights.

Adding the Thermostat
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Start Go to Settings > free@home radio > Search for wireless devices
The SysAP will now search for the Thermostat.
Note: The Thermostat can only be found if the search starts within 30 minutes after the
Thermostat was connected to power. If the 30 minutes has elapsed, pull the Thermostat from
the wall and plug it in again to restart the 30 minutes.
The Thermostat will be found automatically and will be inserted into the configuration software.
Please wait until the Thermostat configuration is read. This may take up to 10 minutes.
STEP 3: Add the Thermostat to the floor plan
A. Go to “Devices”.
B. Click on “Temperature control”.
C. Click on “Thermostat”.
D. Drag the Thermostat symbol into the floor plan.
E. Choose the device from the list.
Note: The device can be identified by its serial number or 3-digit code.

Adding the Thermostat
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G. A new symbol will appear in the floor plan.
2.1 More than one Thermostat (“Master & Slave“)
Of course you can have more than one Thermostat. There are two options:
OPTION 1: There are 2 (or more) Thermostats for the same HVAC equipment
If you only have one HVAC equipment but want to have 2 (or more) Thermostats for controlling
it, make one Thermostat the “Master” and the other one(s) a “Slave”. This is done during
configuration (see next chapter).
Important: The control wires must be connected to the “Master” Thermostat. The Slaves only
need 24 V AC connected to the Rc and C terminals. Master and Slave will show the same
information on their display.
See the example above: The Thermostat in the Hall is the “Master”. The Thermostat in the
Master Bedroom is the “Slave”.
OPTION 2: There are 2 (or more) HVAC equipment in the house
If you have 2 (or more) HVAC equipment (e.g. one for the 1st floor and another one for the 2nd
floor) configure both Thermostats as “Thermostat”.

Configuring the Thermostat
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3Configuring the Thermostat
STEP 1: Start the Configuration Wizard
Follow the instructions of the Configuration Wizard. To start the Wizard, click on the Thermostat
symbol in the floor plan, then click “Configuration” in the menu that appears on the right.
After the configuration is complete, the Thermostat will appear in the DEVICES List View:
Once you add a second Thermostat you will be asked if it is a Master or a Slave:
Please refer to section 2.1 for more information on “Master” and “Slave”.
STEP 2: Adapt the Settings, if required
The following table shows the Thermostat settings.
3.1 Thermostat Settings
Setting Description Options Image
Temperature
correction
Sometimes
temperature shown
on Thermostat is
incorrect, i.e. due to
air draft. This setting
allows user to
correct temperature
value.
27 to 38 in
increments of 1
Presence
Detector
Timed On
Duration [s]
For future purposes.
Will be hidden in the
next software
version.

Configuring the Thermostat
Product Manual 2CQA 100 014 B0001 │2018-09-28 │9
Setting Description Options Image
Heating
system, first
stage (W1)
Defines type of
heater controlled by
W1 wire.
•None
•Natural Gas
•Heat Pump
•Propane
•Oil
•Electric
•Hydro underfloor
•Hydro radiator
Heating
system,
second stage
(W2)
Defines type of
heater controlled by
W2 wire.
•None
•Natural Gas
•Heat Pump
•Propane
•Oil
•Electric
•Emergency
Heating
Cooling
system, first
stage (Y1)
Defines type of
device controlled by
Y1 wire.
•None
•Air
conditioning
•Heat pump
Cooling
system,
second stage
(Y2)
Defines type of
device controlled by
Y2 wire.
•None
•Air
conditioning
•Heat pump
•Heat pump
reset (do not
use)
Heat pump
reversing
valve is
engaged …
(O/B)
Note: For heat
pumps only.
Reversing valve
switches between
heating/cooling
mode of heat pump.
Setting defines
polarity of reversing
valve.
•On cool
•On heat
Type of
accessory
(ACC)
Defines type of
device controlled by
AUX/ACC wire.
•Humidifier
(evaporative)
•Humidifier
(steam)
•Dehumidifier
(active closed)
•Dehumidifier
(active open)

Configuring the Thermostat
Product Manual 2CQA 100 014 B0001 │2018-09-28 │10
Setting Description Options Image
•
Manual (active
open)
•Manual (active
closed)
Compressor
delay between
cycles [s]
Note: Only if air-
conditioner or heat
pump exists.
Setting defines
minimum time
system must wait
before air-conditioner
or heat pump can
run again.
120 to 360
in increments of 10
Fan timer
after heating
[s]
Note: Not for water-
based systems.
Defines fan-running
time after heating
has switched off.
During time
remaining heat in
system is extracted.
60 to 240
in increments of 10
Fan timer
after cooling
[s]
Note: Not for water-
based systems.
Defines fan-running
time after air
conditioning has
switched OFF. This
allows system to
distribute remaining
pre-cooled air
already present in
ducts.
60 to 240
in increments of 10
Minimum ON
time for gas
furnace [s]
Note: Only for gas
furnaces.
Setting defines
minimum time gas
furnace stays ON.
Some gas furnaces
should not be
switched ON/OFF
rapidly to prevent
damage or
premature wear of
parts.
0 to 240
in increments of 10
Fan delay ON
cooling [s]
Note: Not for water-
based systems.
Delays time for fan
after cooling starts.
Prevents warm air
coming out of vent
while air conditioning
is still cooling.
0 to 240
in increments of 10

Configuring the Thermostat
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Setting Description Options Image
Fan delay ON
heating [s]
Note: Not for water-
based systems.
Delays time for fan
after heating starts.
Prevents cold air
coming out of vent
while heater is
warming up.
0 to 240
in increments of 10
Go directly to
2nd stage after
… if
difference >
5°F
Thermostat switches
to 2nd stage
heating/cooling
system after
detecting 1st stage is
unable to bring
temperature to within
5°F of setpoint within
certain time.
Thermostat activates
to 2nd stage after
certain elapsed time.
30 to 360
in increments of 10
Displayed
values
Setting defines
temperature values
displayed on
Thermostat after
user’s hand has
approached device.
•Current
temperature: big;
Setpoint: small
•Setpoint
temperature only
•Current
temperature only
•Setpoint
temperature: big;
Current: small
•Setpoint
prominent, outside
temperature small
•Actual
temperature
prominent, outside
temperature small
Show
temperature
when
switched off
When switched off,
device shows “OFF”
on display. If “Yes” is
selected, current
temperature will also
be displayed.
Yes
No
Eco
Temperature
Offset [°F]
Setpoint change
occurs automatically
and is not displayed
on Thermostat.
•If ECO (green-leaf
symbol) is active:
Setpoint is
changed by this
value
•If heating is
active: Setpoint
is decreased
•If cooling is active:
Setpoint is
increased

Configuring the Thermostat
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Setting Description Options Image
Shortcut for
the …
(multiple
settings)
For future purposes.
Will be hidden in the
next software
version.
(keep
unchanged)
Fan run time
when
manually
switched on
Setting limits time
fan is ON when user
touches Fan symbol.
•Unlimited
•10 minutes
•20 minutes
•30 minutes
•60 minutes
Switch
Display Off at
Night
By default, display
brightness dims
automatically if room
light goes down. If
setting is set to
“Yes”, it will switch
OFF when room light
goes below certain
level.
Yes
No
Display
Brightness
Setting defines
display brightness on
Thermostat.
0 to 100 in
increments of 10
Protection:
Force cooling
if temperature
exceeds [°F]
If temperature rises
above this value
cooling will switch
ON to protect home.
86 to 104
in increments of 1
Protection:
Force heating
if temperature
falls below
[°F]
If temperature drops
below this value
heating will switch
ON to protect home.
34 to 50
in increments of 1
Compressor
lockout [°F]
For future purposes.
Will be hidden in the
next software
version.
(keep unchanged)
Heat pump
aux heat
lockout [°F]
For future purposes.
Will be hidden in the
next software
version.
(keep unchanged)
Max.
compressor
cycles per
hour, 1st stage
Limits how often
compressor for stage
1 cooling is switched
ON. Limiting
compressor cycles
saves energy and
reduces wear. Stage
1 is controlled by Y1.
Compressor is part
of air-conditioner or
heat pump.
1 to 6
in increments of 1

Configuring the Thermostat
Product Manual 2CQA 100 014 B0001 │2018-09-28 │13
Setting Description Options Image
Max.
compressor
cycles per
hour, 2nd
stage
Limits how often
compressor for stage
2 cooling will be
switched ON.
Limiting compressor
cycles saves energy
and reduces wear.
Stage 2 is controlled
by Y2. Compressor
is part of air-
conditioning or heat
pump.
1 to 6
in increments of 1
Max. heating
cycles per
hour, 1st stage
Limits how often
compressor for stage
1 heating will switch
ON. Limiting
compressor cycles
saves energy and
reduces wear. Stage
1 heat is controlled
by Y1. Compressor
is part of air-
conditioner or heat
pump.
1 to 12
in increments of 1
Max. heating
cycles per
hour, 2nd
stage
Limits how often
compressor for stage
2 heating will be
switched ON.
Limiting compressor
cycles saves energy
and reduces wear.
Stage 2 heat is
controlled by Y2.
Compressor is part
of air-conditioner or
heat pump.
1 to 12
in increments of 1
Humidity
setpoint [%]
Defines desired
humidity percentage
when running a
humidifier or
dehumidifier.
20 to 80 in
increments of 10
Fan control
Note: Setting
depends on type of
equipment.
Thermostat-
controlled is safest
option. Select when
HVAC equipment
does not control fan
or if user is unsure.
Equipment-controlled
is more common.
Note: User must
validate system
equipment has
control over fan. If
not, HVAC may
overheat/freeze as it
relies on being
•Thermostat-
controlled
•Equipment-
controlled

Configuring the Thermostat
Product Manual 2CQA 100 014 B0001 │2018-09-28 │14
Setting Description Options Image
cooled/warmed by
fan.
Heat pump
remains in a
stage for a
minimum of
… [min]
Limits how often
Thermostat will
switch between 1st
and 2nd stage
heating or cooling
sources.
10 to 25
in increments of 5
High cool
latch
temperature
[°F]
For future purposes.
Will be hidden in the
next software
version.
(keep
unchanged)
High cool
latch
temperature
[°F]
For future purposes.
Will be hidden in the
next software
version.
(keep
unchanged)
Heating starts
at… below
setpoint [°F]
Thermostat starts
heating if actual
temperature falls
below setpoint value.
Not relevant in ECO
mode.
32 to 50 in
increments of 1
Cooling starts
at … above
setpoint [°F]
Thermostat starts
cooling if actual
temperature
exceeds setpoint
value. Not relevant
in ECO mode.
32 to 50 in
increments of 1
Switching
delay between
heating and
cooling
If both
heating/cooling are
enabled, Thermostat
can automatically
switch between
them, i.e. if house
cools rapidly at night
after hot day. Setting
defines how quickly
system will switch
between heating and
cooling modes.
Medium is the
recommended mode.
Note: Default mode
is “None”.
•None: Stays in
original mode
setting until user
disables it
•Low: Changes
immediately
between
heating/cooling,
changes can
occur frequently
•Medium: Changes
between
heating/cooling
after a reasonable
time, approx. 30
minutes to one
hour
•High: Waits
several hours
before switching
between
heating/cooling.
User Mode Select which icons are accessible from
the main screen.
•Normal User:
All icons available
in settings menu
•Power User:
All icons displayed

Configuring the Thermostat
Product Manual 2CQA 100 014 B0001 │2018-09-28 │15
Setting Description Options Image
on main screen
•Default Setting:
Normal User

Technical Data
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4 Technical Data
4.1 Technical Data
Designation Value
Operating Voltage* 24 V AC, 60 Hz
Wires AWG18 to AWG22,
Stranded Wires are NOT allowed
Wireless Transmission Protocol free@home, 2.400 - 2.483 GHz, meshed
Ambient Operating Temperature 32°F to 104°F (0°C to 40°C)
*WARNING: DO NOT connect deviceto a voltage above 24 V
4.2 Wiring Connection
Terminal Conventional Setup Heat Pump Setup
Rc ** Cooling power, 24 V AC Cooling power, 24 V AC
Rh ** Heating power, 24 V AC Heating power, 24 V AC
CCommon, 24 V (from Rc) Common, 24 V (from Rc)
Y1 Y1 Cooling (stage 1) Heat pump compressor (stage 1)
Y2 Y2 Cooling (stage 2) Heat pump compressor (stage 2)
GFan Fan
W1 Heating (stage 1) AUX heating (stage 1)
W2 Heating (stage 2) AUX heating (stage 2)
ACC For accessories*, operated by “AUX”
symbol on display For accessories*, operated by “AUX” symbol on display
O/B Not used Reversing valve
*Typical accessories: humidifier or de-humidifier
**If heating and cooling systems are 24 V AC separately (“2-transformer system”) please remove jumper
on back of ABB Thermostat. See image below.

Technical Data
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4.3 Supported Equipment
The ABB Thermostat works with the following equipment:
Equipment Types
Conventional Heating Systems
(Single and Dual-stage)
•Natural Gas
•Propane
•Oil
•Electric
Conventional Air Conditioning •Single-Stage
•Dual-Stage
Heat Pumps – Heating and Cooling
•Air-Based
•Geothermal
•Electric Auxiliary - User can activate
“Emergency Heating” to run heat pump
with/without using compressor (auxiliary
heating only).
Water-Based Systems •Radiators
•Underfloor Heating
Humidity Control •Humidifier
•De-Humidifier
Combinations
•Different Power Types: Stage 1 - Natural
Gas and Stage 2 - Electric
•Water-Based Heating and Air-Based
Heating

Resetting the Device
Product Manual 2CQA 100 014 B0001 │2018-09-28 │18
5Resetting the Device
Reset the Thermostat if it was previously assigned to a different System Access Point (SysAP).
The reset will remove any previous connection and enable the device to connect to a new
SysAP.
Reset procedure:
Touch and hold power OFF button for at least 15 seconds, until Thermostat starts to reboot.

ABB
ABB
Electrification Products
860 Ridge Lake Boulevard
Memphis, TN 38120
abb.com/freeathome
Customer Service:
800-816-7809
7:00 am – 5:30 pm, CST, Mon-Fri
[e-mail]
Technical Support:
888-385-1221, Option 1
7:00 am – 5:00 pm, CST, Mon-Fri
freeathome_techsuppo[email protected]om
For information about the many
functions of this device, see the
system manual at
abb.com/us/freeathome
N
OTICE:
We reserve the right at all times to
make technical changes as well as
changes to the contents of this
document without prior notice.
The detailed specifications agreed
upon apply for orders. ABB accepts
no responsibility for possible errors
or incompleteness in this
document.
We reserve all rights to this
document and the topics and
illustrations contained therein. The
document and its contents, or
extracts thereof, must not be
reproduced, transmitted or reused
by third parties without prior written
consent by ABB.
Product Manual 2CQA 100 014 B0001 │2018-09-28
© 2018 ABB Inc.
All rights reserved