TFC Group Feeling RF Room Thermostat - Manual (Page 38)

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Following adjustments are possible:
High Temp (HIT):
set maximum temperature value for programming
from low temperature value up to +32°C (default: +32°C)
Low Temp (LOT): set minimum temperature value for programming
from +7°C up to high temperature value (default: +15°C)
Frost protection (FRT): set anti freeze minimum temperature value from +3°C to +7°C (default: 5°C)
Regulation (REG):
possibility to select between PID or 2 points regulation (default: PID)
Differential (DIF): possibility to modify differential value from 0,1 K to 0,9 K (default: 0,4 K)
Keypad Lock (LOK): enable keypad to protect against non authorized interventions
To enable/disable the keypad lock press and hold MODE - and ESC -button for
more than 3 seconds.
Operating hours (OPT): this feature shows total operating running time (max. 99.999 hours)
Battery Level (BAT):
battery charge level is shown on display