- 3 -
Steady on
-Indicates a fault condition e.g. RF signal not being received
Red LED
Slowly pulsing
-Indicates a valid install code has been received
Green LED
Steady on
-Indicates a demand for heat
Green LED
Off
- i.e. Heating satisfied
Checking the hard wired circuit
1. Apply power to the TLX 1206 receiver. Ensure any Separate programmer in the heating circuit is calling for heat. The Red LED
should be OFF
2. Press the TEST button. The Green LED should come on. Check that the boiler and/or motorised valve have operated. Remember
to allow adequate time for the valve to open. Press TEST button again. The Green LED should go out, closing any valve and
switching off the boiler.
Note: TEST mode will automatically switch off after 15 minutes.
Checking the RF circuit
ENSURE THE RED AND GREEN LIGHTS ON THE RECEIVER ARE OFF PRIOR TO INSTALLING CODE
1. Press and hold the + and – buttons on the TLX 7506 for at least 3 seconds. The TLX 7506 will then transmit its unique digital
security code every 10 secs. for the next 5 mins. The display will show flashing ‘ ] ]‘ while this is happening.
2. Within the 5 minute period, go to the TLX 1206 rf receiver. Press and hold the INSTALL button and then press the TEST
button whie the install button is held. This will clear out any previously installed codes. The RED LED will pulse slowly for 3
seconds to indicate this has been done.
3. Next, place the receiver in INSTALL mode by pressing and holding the INSTALL button (for at least 10 secs) The RED LED
will come on and stay on until a valid INSTALL code has been received. When this happens, the RED LED will start pulsing
slowly and the INSTALL button can be released. The RED LED will pulse for a further 3 seconds and then go off. The
INSTALL code has been successfully received.
4. Go to the thermostat transmitter and press any key to stop the transmission. The display will stop transmitting ‘] ] ‘ and return
to normal.
5. The TLX 1206 RF receiver will now only respond to radio signals with the installed code. I.E. from the TLX 7506 thermostat
just installed. Even if the power is removed from the receiver it will not forget the installed code.
6. Check that the TLX 7506 and the TLX 1206 are
Communicating with each other by adjusting the TLX 7506 Set Point below and then above the actual temperature, thus
generating a radio signal requesting the heat to come on or go off and check that the boiler responds as expected. The RED
LED on the receiver will flash for 3 seconds each time a radio signal is received. This will happen every time the TLX 7506
thermostat calls for the heating to be switched on or off.
7. The TLX 7506 thermostat also sends a radio signal
Every 5 minutes to make sure that the TLX 1206 receiver knows what state it should be in. Therefore every 5 minutes the
RED LED will flash for 3 seconds. If the TLX 1206 does not receive regular RF signals, the RED LED will come on indicating
that a fault condition has occurred and the heating system will be switched OFF.
NOTE. If more than one Radio Controlled Digital Room thermostat system is fitted within the same property, it is
important that the above procedure is used to install each Room Thermostat in turn so that they are correctly
matched to the relevant Receivers.
N L 1 2 3 4
Com On Off
Schematic for
TLX 1206
