
Danfoss Heating
TPOne-RF
Electronic Programmable Room Thermostat
Installation Guide

Danfoss can accept no responsibility for possible errors in catalogues, brochures, and other
printed material. All trademarks in this material are property of the respective companies.
Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
TPOne is an intelligent programmable heating control
made easy. TPOne includes features which are designed
to save energy. Look out for the leaf symbol throughout
this guide for settings which can directly inuence the
energy saved.
Hearby, Danfoss A/S declares that the radio equipment type TPOne-RF + RX1-S
is in compliance with directive 2014/53/EU.
The full text of the EU declaration of conformity is available at the following
internet address, http://heating.danfoss.co.uk/download/documentation/

3
Installation Instructions
ErP Class
The products represented within this document are classied according
to, and allow completion of, the Energy Related Product (ErP) Directive
System Package che and the ErP system data label. ErP Labelling
obligation is applicable from 26th September 2015.
ERP Class Product Function and ErP Description
Additional
efficiency
gain
IV
TPI Room Thermostat, for use with on/off
output heaters
An electronic room thermostat that controls
both thermostat cycle rate and in-cycle on/
o ratio of the heater proportional to room
temperature. TPI control strategy reduces
mean water temperature, improves room
temperature control accuracy and enhances
system eciency.
2%
Product
Class
Specications TPOne-RF RX1-S
Operating Voltage
2.5 - 3VDC
(2x AA batteries)
230Vac, 50/60Hz
Output relay - Volt Free
Setting temperature range 5-35°C -
Operating temprature range 0-45°C
Switch rating - 3A (1) at 230Vac
Switch type - 1 x SPDT Type 1B
Battery lifetime Min. 2 years
IP rating IP20 IP40
On/o control Yes -
Chrono-proportional control Yes -
Operating mode Heating -
Construction EN 60730-2-9 EN 60730-1
Control pollution situation Degree 2
Rated impulse voltage - 2.5kV
Ball pressure test 75°C
Dimensions (mm) H67 x W154 x D30 H84 x W84 x D28
Software Classication A
Important note RF products: Ensure that there are no large metal objects,
such as boiler cases or other large appliances, in line of sight between the
transmitter and receiver as these will prevent communication between
thermostat and receiver.

Mounting
Thermostat or Remote Room Sensor positioning:
Please note: This product should only be installed by
a qualied electrician or competent heating installer
and should be in accordance with the local wiring
regulations.

5
Remote sensor inputs
S1
S2
S1
S2
Remote room or limit sensor
Wiring
Window switch contact
RX1-S Receiver
ELECTRONICS
N
L
N
L
2
3
4
COM
ON
OFF
230Vac
1
RX1-S Receiver
NOTE:
Remote Sensor to be wired with 1mm 2 core double insulated cable
only. Cable length should not exceed 10 metres. Sensor cable should
NOT be run parallel to mains cable.

Comfort modes
User Interface
Display
Navigation
Comfort Modes
Heating made easy: TPOne Comfort Modes simplify the way you
plan your heating day to day. You dene your comfort modes in the
user schedule and manually override when you need, allowing you
to adapt your schedule to the way you live.
The Home, Away and Asleep comfort modes are linked to your
dened comfort temperatures. The schedule follows the daily
routine you have set or you just choose the comfort mode required
and TPOne will recall the settings you have dened.
The TPOne Standby Mode allows you to switch your heating o
when not required although the thermostat continues to monitor
the room temperature and call for heating should there be a risk of
frost damage.
NOTE:
TPOne has been designed with touch sensitive user interface
buttons. To avoid accidental setting changes the interface buttons
stay in an idle state during which time the first button press needs
to be made for 1sec, this will place the TPOne into an active setting
state. While active the TPOne will respond immediately to any valid
key press. If no key presses are made for 30secs the buttons will go
back to an idle state.

7
Comfort Modes
Home
Home Mode selects the home comfort
temperature typically when the home is
occupied during the day. The required
temperatures for Home mode are selectable
in the Temperature setting (see User Menu
> Temperatures.) A separate Home AM and
Home PM temperature can be chosen and
these are automatically set according to the
time of the day.
Note: When in Home mode if the home button
is pressed again a 1, 2 or 3 hour heating boost
is selected and the current home period is
extended by the chosen time period. The
chosen boost period is displayed under the
Home icon on the display.
Away
Away Mode selects the away comfort
temperature typically when the home is
unoccupied during the day. The required
temperature for Away mode is selectable in
the Temperature setting (see User Menu >
Temperatures).
Asleep
Asleep Mode selects the nightime comfort
temperature which is set between the end
of the last home period of the day and the
beginning of the rst home period of the
following day. The required temperature for
Asleep mode is selectable in the Temperature
setting (see User Menu > Temperatures).
Standby
The TPOne can be placed in Standby
Mode. While in Standby the TPOne will
not control the heating system other than
to protect against frost damage (see User
Menu > Installer Settings > Frost Protect for
information on frost protect). Standby can
be cancelled by pressing the Standby button
again or by selecting another comfort mode.
Note: the standby option places the heating
control in standby only, if Hot Water is set
up this is not affected. To switch Hot Water
control off see User Menu > Hot Water > Mode

OK
Navigation
Menu
Press Menu to access the intuitive text menu.
The common feature User Menu will be
displayed rst. Additional settings can found
in the User Setting option and more advance
settings can be found in the Installer Setting
option.
OK
Select /
Conrm
Press OK to select menu options or conrm
settings. OK will be shown on the display
when it can be used or is required.
Menu
Back
Press to exit a menu option. Pressing
while in a setting will result in that setting
change not be accepted. will also exit the
menu system. will be shown on the display
when it can be used
Naviga-
tion
The Navigation buttons are used to navigate
the TPOne menus and change setting values.
The up & down buttons are also used to
manually change the required temperature.
Navigation arrows will be shown on the
display when these buttons can be used.

9
Button
Lock
Indicates that Button Lock has been activated to
avoid unintentional setting changes. To activate
buttons while button lock is active press the OK
button for 5 seconds. The Button Lock setting is
found in the Installer Menu.
Battery
Low
The battery low icon indicates when the TPOne
batteries should be changed. To avoid loss of
heating or damage to your thermostat replace
batteries when this icon is displayed.
Heat
Calling
When the current room temperature is below the
required room set temperature the TPOne will call
for heating from the connected heat source. This is
indicated by the Heat Calling icon.
The TPOne-RF is connected by radio signal to a
receiver. The Radio Frequency icon will be displayed
to conrm that this connection is active and that the
TPOne-RF is controlling the heating.
If connection is lost the icon will go o and a warning
will be shown at the top of the display.
Important Note: Ensure that there are no large metal
objects, such as boiler cases, other large appliances
or mirrors in line of sight between the transmitter
and receiver as these will prevent communication
between the TPOne-RF and receiver.
Display
Info & Settings Status Icons
Dates &
Warnings
21
.5
°
16:35 Mon
NOTE:
TPOne monitors several conditions and will provide warning or
information messages when necessary. Details on these can be
found on pages 24 - 26.