Watts BT-DRF-02 User manual

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BT-DRF-02

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USER GUIDE GB
RF Digital Thermostat 3-22
GUIDE D’UTILISATION FR
Thermostat digital RF 24-44
BENUTZERHANDBUCH D
Thermostat RF 46-65
MANUAL DE USUARIO ES
Termóstato digitalRF 66-85

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IMPORTANT!
Before starting work the installer should carefully read this
Installation & Operation Manual, and make sure all
instructions contained therein are understood and
observed.
- The thermostat should be mounted, operated and
maintained by specially trained personnel only. Personnel
in the course of training are only allowed to handle the
product under the supervision of an experienced fitter.
Subject to observation of the above terms, the manufacture
shall assume the liability for the equipment as provided by
legal stipulations.
- All instructions in this Installation & Operation manual
should be observed when working with the controller. Any
other application shall not comply with the regulations. The
manufacturer shall not be liable in case of incompetent use
of the control. Any modifications and amendments are not
allowed for safety reasons.
The maintenance may be performed by service shops
approved by the manufacturer only.
- The functionality of the controller depends on the model
and equipment. This installation leaflet is part of the
product and has to be obtained.
APPLICATION
- The thermostats BT-DRF-02 are developed to control and
manage all type of Electrical heating system or materials.
- The controllers have been designed for use in residential
rooms, office spaces and industrial facilities.
Verify that the installation complies with existing regulations
before operation to ensure proper use of the installation.

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Table of content
1Presentation......................................................................5
Keyboard...........................................................................6
1.1
LED & Display...................................................................6
1.2
2First Installation.................................................................7
Batteries installation..........................................................7
2.1
RF installation...................................................................7
2.2
2.2.1 With receivers...................................................................7
2.2.2 Case of central..................................................................8
Start ..................................................................................9
2.3
3Working mode definition....................................................9
Autonomous working ........................................................9
3.1
3.1.1 Manual mode Comfort ...................................................10
3.1.2 Manual mode, Reduced .................................................10
3.1.3 OFF mode ......................................................................10
3.1.4 Anti-freeze mode ............................................................10
3.1.5 Timer mode ....................................................................10
4Special function...............................................................11
Keyboards lock Function ................................................11
4.1
Open window function.....................................................12
4.2
Information......................................................................12
4.3
5Parameter’s menu...........................................................13
6Technical characteristics.................................................15
7Troubleshooting & Solution.............................................16
8Advanced installer’s parameters menu ...........................18

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1 Presentation
Electronic thermostat with LCD display specially designed
to control different type of heating systems.
It will be your best partner to optimize your energy
consumption and increase your comfort.
- Modern design with soft touch material.
- Wireless Bidirectional communication 868 MHz.
- Temporary override function.
- Anti freeze function.
- Holiday or Reception function.
- EEPROM non volatile memory.
- 2 AAA batteries for 2 years operating life.
- 2 parameter menus, (User and Installer)
- 3 types of receivers for all possibilities of uses.
In option
External sensor with several possibilities of regulation.
(Floor, combined…)
+
+
-
-

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Keyboard
1.1
Left Navigation key (◄)
Right navigation key (►)
Escape key ( )
Edition key ( )
LED & Display
1.2
Red Fix: Heating demand (when backlight is lit
up):
Red flash: Error on sensor or batteries
Minus Key (-)
Plus Key (+)
Validation Key (OK)
Status LED

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1. Operating mode menu (active mode is framed).
2. Parameter number if “3” is displayed.
3. Installation Parameter menu.
4. Type of sensor used and temperature displayed. “2”
is
Regulation => Internal or external ambient sensor.
Regulation => Floor sensor.
Regulation => Internal sensor with Floor limitation.
Regulation => View of the outside temperature
5. Heating demand indication.
6. Low batteries indicator.
7. °C or °F unit indicator
8. Setting or measured temperature if “2” is displayed.
9. Key lock indicator
10. RF indicator.
2 First Installation
This section will guide you to set up your thermostat for the
first time.
Batteries installation
2.1
- Open the two side’s covers and Insert the 2 AAA Alkaline
supplied batteries (or remove the small protection sticker if
the batteries are already installed in the compartment)
- Close the two side’s covers.
RF installation
2.2
2.2.1 With receivers
- First of all to configure your thermostat with the receiver,
you must put your receiver in RF init mode. (Please refer
to the receiver leaflet for this, only the RF receivers of the
same range are compatibles)

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- Now on the thermostat press and maintain the edition key
() during 5s, then the parameter « INI » must be
displayed.
The thermostat will send now the radio configuration signal
to the receiver.
- After few seconds the thermostat and receiver should exit
by their self the RF init mode, this is the normal procedure
to confirm a correct pairing.
- Now you can check the RF distance, go to the room
which must be regulated. Put your thermostat on the final
position (On the wall or table...), then put the thermostat in
Comfort mode (setting temperature position 37°C). Close
the door and go to the receiver to check if the new status of
the thermostat has received. (The heating is generally
showed by a Red LED on the receiver).
- Now return to the thermostat and switch off it. Check on
the receiver again if it’s also switched off (The red LED
must be turned off)
If the RF signals were received correctly, adjust your
setting temperature as you want.
If the RF signals weren’t received correctly, check the
installation (Receiver position, distance...) or restart the RF
init rules to be sure.
* To make the installation easier it will be better to have the
thermostat near to the receiver during the configuration
mode. (A minimal distance of > 1meter must be respected)
2.2.2 Case of central
The link is done with central

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Start
2.3
The thermostat is now ready to work.
The default working mode will be Comfort
3 Working mode definition
Following your installation (Unit installed) your thermostat
will offer different possibilities.
Following the model of receiver linked with your thermostat,
you will have also different possibilities for the working and
regulation (Floor regulation, air regulation combined with
floor limitation, Pilot wire function…)
Autonomous working
3.1
(Available with all receiver models)
Your thermostat has several different working modes to
allow you to adjust your unit according to your life
habitudes.
How to change the working mode?
- Open the small center cover to have access to the
navigation keys (◄) or (►).
- You can now press theses keys to display the working
mode line.
Move the frame cursor on the desired working mode and
press (OK) to enter in the operating mode you have
chosen.

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3.1.1 Manual mode Comfort
Manual working mode, the comfort setting temperature will
be followed all the time.
By pressing (-) or (+) keys, the comfort setting temperature
starts to blink and can be adjusted.
3.1.2 Manual mode, Reduced
Manual working mode, the reduced setting temperature will
be followed all the time.
By pressing (-) or (+) keys, the reduced setting temperature
starts to blink and can be adjusted.
3.1.3 OFF mode
Use this mode if you need to switch off your installation.
Be Careful: In this mode your installation can freeze.
- At any time, when display is off, press on the (Ok) key to
display a few seconds the current temperature and time.
- To exit the operating mode, use the navigation keys (◄)
or (►).
3.1.4 Anti-freeze mode
Use this mode if you want to protect your installation
against freezing. (During holidays…)
- The anti-freeze setting temperature is fixed and can be
adjusted in the parameter menu number
06 ‘HG’, see chapter 6. (Default value 10°C)
3.1.5 Timer mode
The Timer mode allows you to adjust, the temperature and
the duration for a special time.
This function can be used when you stay at home for
several days, or if you want to override the program for
some time (reception...)

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- You can first adjust, the desired setting temperature with
(-) or (+), press (OK) to start the function. (Default value
22°C)
- In a second time, you can adjust the duration in hours “H”
if below 24H, then in day “d” with (-) or (+), press (OK) to
validate.
The logo will be blink and the number of hours /days left
is displayed until the end of the period.
If you want to stop the Timer function before the end, set
the duration period to “no” with (-) key or use the
navigation keys (◄) or (►).
4 Special function
Keyboards lock Function
4.1
Use this function to prevent all change of your settings (In a
child room, public area…)
- To activate the Key lock function, first press maintain the
escape key () and then press simultaneously on the
edition key ( ).
- The “ ” logo will be displayed on the screen.
- Repeat the same procedure to unlock the key board.

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Open window function
4.2
Conditions of open window detection:
The thermostat detects an "Open window" if the displayed
temperature (internal or ambient sensor) decreases by 3°C
or more during a 5 minutes period (or less).
In this case, the thermostats stops heating for 15 minutes.
The function remains active during those 15 minutes so the
stop can last more time if the temperature continues
decreasing.
As an indicator of this function, the room temperature will
blink.
Return to normal mode:
The thermostat returns automatically to normal mode after
the stop period.
The function can be overridden by pressing the (OK)
button during the stop heating phase.
Then the blinking temperature should stop to indicate the
end of the detection.
Special cases:
- This function doesn't work if Thermostat is in Floor
regulation
- This function doesn't work if Thermostat is in OFF /
Antifreeze Mode
- If temperature is less than 10°C, thermostat will regulates
at 10°C during the stop phase
Information
4.3
With this function You can quickly view all currents
temperatures of the probe sensors connected to your
thermostat (Floor, external or outside sensor) by several
presses on the escape key ( ).This “Scroll function” is
only available in the main screen.
You can view:
- The current setting temperature followed by the
thermostat.
- The ambient temperature
- If external sensor is connected: the outside temperature
If Parameter “SenS” is set on “Air”, the external sensor will
be used as an outside temperature sensor

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5 Parameter’s menu
Your thermostat has a parameter’s menu, in order to enter
in this menu, press and maintain the edition key ( ) during
5sec. Then parameter menu will appear and first parameter
screen will be displayed
Now you can select a parameter which must be adjusted
with the navigation keys (◄) or (►), once the parameter
chosen, toggle the value with the (OK) key, modify it with (-
) or (+) and confirm your adjustment with (OK).
To leave the parameter menu, choose the parameter
« End » and press (OK).
N°
Default value & other possibilities
00
INI: Radio configuration
Sends the radio link signal in order to assign this
RF Thermostat with its RF receiver.
You also need to set simultaneously the receiver in
radio configuration mode (On a simple receiver
press and maintain button until the green light lit’s
up, see receiver leaflet)
01
dEG: Unit of the temperatures displayed
°CCelsius
°FFahrenheit
04
AirC: Calibration of the internal probe
The calibration must be done after 1 day working
with the same setting temperature in accordance
with the following description:
Put a thermometer in the room at 1.5M distance
from the floor (like the thermostat) and check the
real temperature in the room after 1 hour.
When you enter on the calibration parameter “no”
is displayed on the right to indicate no calibration
has made.

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To enter the value shown on the thermometer, use
the (-) or (+) keys to enter the real value. Then,
press (Ok) to confirm.
The message “Yes” should be displayed; the value
will be stored in the internal memory.
If you need to erase a calibration press on the
escape key ( ).
The old value will be erased and the message “no”
will be displayed.
* Pay attention:
Only the heating element driven by the thermostat
must be used during the complete step of the
calibration.
05
OutC ,AMbC ,FlrC: Calibration of the
external wired probe
Same calibration method as described in
parameter
“04 AirC” above.
06
HG: Anti-freeze temperature used in Holiday mode
Default value 10°C.
Use the (-) or (+) keys to change the anti-freeze
setting temperature. Then press (Ok) to confirm.
08
Clr: Reset to Factory setting
Press and maintain (Ok) key during 10s to reset
Set points temperatures and user parameters in
this menu to factory default settings. User
programs will also be resetted.
* Pay attention:
Ensure you that you have all necessary elements
to re-setup your installation before to use this
function.
09
Displayed only if the BT-DRF-02 is linked with a
multizones receiver
CHA—
--: number of the linked zone
10
Software version
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End: Exit the parameter’s menu
Press (OK) key to exit installation parameter menu
and return to normal operation.

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6 Technical characteristics
Environmental:
Operating temperature:
Shipping and storage
temperature:
0°C - 40°C
-10°C to +50°C
Electrical Protection
Installation Category
Pollution Degree
IP30
Class II
2
Temperature precision
0.1°C
Setting temperature range
Comfort, Reduced
Holiday (Antifreeze)
Timer
5°C to 37°C by 0,5°C
step
7.0°C (adjustable)
5°C to 37°C
Regulation characteristics
Proportional Band
(PWM 2°C/10min)
or Hysteresis 0.5°C
Power Supply
Operating life
2 AAA LR03 1.5V
Alkaline ~2 years
Sensing elements:
Internal & External (option)
NTC 10kat 25°C
Radio Frequency
868 MHz, <10mW.
Software version
Showed in parameter
menu. Vers xxx
Compatible receivers
Flush type
Wall type
Plug type
Norms and homologation:
Your thermostat has been
designed in conformity with
the following standards or
other normative
documents:
EN 60730-1 : 2003
EN 61000-6-1 : 2002
EN 61000-6-3 : 2004
EN 61000-4-2 : 2001
EN300220-1/2
EN301489-1/3
R&TTE 1999/5/EC
Low voltage
2006/95/CE
EMC 2004/108/CE

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7 Troubleshooting & Solution
My BT DRF-02 doesn’t start
Batteries
Problem
- Check if the protection sticker on the
batteries is removed.
- Check the batteries orientation.
- Check the capacity of the batteries
My BT DRF-02 Led, blinks in Red
Problem on
sensors
The logo blinks (ambient sensor)
- Contact your installer or seller.
The logo blinks (Floor sensor)
- Check the connection of the sensor.
- Disconnect the sensor, and check it
with an ohmmeter (the value must be
around 10kohms)
Batteries level is
too less
The logo blinks (Batteries)
- Replace the batteries.
My BT DRF-02 seems work correctly but the heating doesn’t
work correctly
Output
On the receiver:
- check the good reception of RF signal
- Check the connections.
- Check the power supply of the heating
element.
- Contact your installer.
RF
communication
- Check the following points :
- The receiver must be put at a
minimum distance of 50cm of all
others electrical or wireless materials
(GSM, Wi-Fi..)
- The receiver shouldn’t be fixed on a
metallic part or too close of hydraulic
pipes… (Copper…)

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My BT DRF-02 seems work correctly but the temperature
in the room was never in accordance with the setting
temperature.
Program
- Try to calibrate your thermostat (see
user menu parameter 04)
- Contact your installer, to check & adjust
the regulation parameters with your
heating system.

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8 Advanced installer’s parameters
menu
How to acceed it on the “BT-DRF-02” version
Press 5 sec on the
key
External sensor
NTC type 10k Ω
at 25°C (ß = 3950)

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In order to enter in the menu, press on the escape key
during 5 seconds, the following display with the first parameter
appears:
- Once you entered in the menu, go to the parameter which you
want change by using the keys (◄) or (►).
- Use the keys (+) or (-) to edit and modify and confirm by
pushing the (OK) key.
- To leave the parameter menu, go to the parameter “End” and
press the (OK) key.

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Parameters
Installer’s Advanced Menu
N°
names
Description of the parameter
Factory value
Other possibility
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REG
Selection of the sensor used for the
regulation.
“AIR”
Internal ambient
sensor
“amb”
External ambient
sensor
The following option
are only available with
receiver
“FLR”
Floor sensor
regulation
“FL.L”
Air regulation with
floor limitation
possibilities
(see parameters
25&26)
21
Cld ---
Use this option if you want to allow the
zone to work in cooling mode
“yes”
Function activated
“no”
Function deactivated