The status of the ST620RF Receiver is indicated by the use of two
bi-colour Light Emitting Diodes (LEDs). The status indicators are:
Indicator Colour Operating Function
Blue / Yellow Blue Heat call mode
Yellow Failsafe mode
Green / Red Green Power on
Red SYNC mode
User Control Function Summary – ST620RF Receiver
Key/Operation Functions
Auto Sets Receiver to Automatic mode (default setting)
Manual Sets Receiver to Manual mode
On Turns Relay output ON (default setting)
Cycle
Switches Receiver output on and off in a 15 minute cycle (4 minutes on, 11 minutes off)
Off Turns Relay output OFF
SYNC Button Enables RF signal synchronisation with ST620RF Control Centre
Reset Button Resets the Receiver to default (original factory) settings
17ST620RF INSTRUCTION MANUAL