83 VS20WRF and VS20BRF Installer Manual
User Guide - Understanding Temperature Levels Heating
Highest Temperature typically used for early
morning and early evening.
Typically 21C
Mid Temperature typically used for times of day
when you are active around the home
Typically 19C
Lower Temperature typically used for
unoccupied or sleep times. Typically 17C for
UFH or 15C for radiators
Frost Temperature typically used for periods of
long absence or holidays.
Typically 5C
Your thermostat comes preset for the above temperatures.
These can be adjusted. Please see below.
PRT, Group Control Thermostat and Group Thermostat