Testing the RF Transmission
It is important to site both the Receiver and Control Centre in locations where the RF signal cannot be
interrupted.
The receiving range between Control Centre and Receiver is 100 metres in open air, however many
factors can affect the RF transmission and shorten the operating distance, e.g. shielding by thick walls,
foil back plasterboard, metal objects such as filing cabinets, general RF interference, and so on.
The operating range is generally around 30 metres, which is large enough for most household
applications, but it is advisable to test the RF transmission from the intended Control Centre location to
the Receiver location before fixing the Control Centre to the wall. If you are unable to get a stable RF
connection between the Receiver and Control Centre, check that the Receiver is both switched on and
has a mains supply (green LED lit).
The RF communication is one way, from the Control Centre to the Receiver – the Receiver does not send
any signal back to the Control Centre.
The RF signal indicator only flashes once when a signal is being transmitted. Once the Receiver
has established communication successfully, the green Power LED will flash for 4 seconds to indicate
the process has completed correctly.
It will transmit only when there is a need to control the heating system.
ST320RF INSTRUCTION MANUAL12
