Salus HTR-RF(20) Full User Manual page 40

You can also do factory reset from the thermostat directly. It will also remove your thermostat from the Zigbee network but you still will be able
to see thermostat's tile. After factory reset thermostat tile will change to dark grey colour.
1
Press SYNC button (back of the
thermostat) for 5 seconds...
4
Press thermostat's name.
40
2
5 sek.
...red diode will start to blink 3
5
At the very bottom of thermostat's
menu choose „Remove" option.
times in a row sequently.
3
Select the thermostat in
the main app menu.
6
Press „Delete" button to remove your
thermostat from the app and confirm
factory reset.