Room thermostat PT 21 ELEKTROBOCK - 621

Features of the PT21 digital thermostat:

is the successor to the PT20 thermostat (production discontinued). It is designed to meet the high standard of required functions, and to maintain the simplicity of operation of this device. By using a digital thermostat, you can significantly save energy needed for heating, while maintaining optimal thermal comfort. Due to the large program options (up to 6 time periods and temperatures for each day), you can ideally select a program that suits you.

Advantages of PT21:

• POSSIBILITY OF SETTING HYSTERESIS in the range from 0.1°C to 1.5°C
• QUICK TEST OF CORRECT CONNECTION OF THE THERMOSTAT AND BOILER TL. "Test"
• Easier setting of the time and day, just press the "+/-" button
• faster copying days "Copy" button.
• a different program every day
• simple control and programming
• possibility of short-term change of program temperature
• easy installation on all types of KU/KP68 installation boxes
• holiday economy mode (max. number of days 99)
• low consumption
• information about boiler operating hours
• temperature control in 0.5°C increments
• multifunction display
• "Off" button to turn off the boiler
• Memory retention when replacing batteries for approx. 25 seconds