In normal mode, the display shows the actual room temperature. To change the set point,
rotate the dial until the digital LCD displays the new set temperature.
Setting The Temperature
Display Icons
The Heatmiser DS1-L has a lock facility. To lock the thermostat, press and hold down the
dial for 10 seconds. You will see a lock symbol appear. To unlock, repeat the steps above.
Heating ON
Keypad Locked
The Heatmiser DS1-L offers 1, 2 and 3°C switching differential.
With a 1°C switching differential the heating will switch on 1°C below the set
temperature and will turn off when the set temperature is reached.
A 2°C will turn the heating on 2°C below the set temperature.
3°C will switch the heating on 3°C below the set temperature.
To set the differential, you should set the DIP switches according to the table below.
The DIP switch can be accessed from the back of the thermostat (shown opposite).
Lock Facility
Switching Differential
1
2
1 °C Switching
2 °C Switching
3 °C Switching
1
2
3
Switch 1 & 2 OFF
Switch 1 ON and Switch 2 OFF
Switch 1 OFF and Switch 2 ON
2
3
1
