Heatmiser DS1 - Setting The Temperature; Adjusting Temperature Dial; Switching Differential; Differential Explanation

To change the set point, rotate the dial until it points at the desired temperature.
Setting The Temperature
The Heatmiser DS1 oers 1, 2 and 3°C switching dierential.
With a 1°C switching dierential the heating will switch on 1°C below the set
temperature and will turn o 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 dierential, 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).
Switching Dierential
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
Wiring Diagram - DS1 to Boiler Voltfree
230V Supply
For 230V
switched live to
boiler on A2
link L to A1
LS & LR ARE NORMALLY THE
ROOM THERMOSTAT CONNECTIONS
LR
LS
DS1
2 31