Saswell SAS908XWHB-7 - An Example of an Electrical Scheme

An example of an electrical scheme.
If you’re using the thermostat for underfloor heating, you can install an external temperature sensor with value
NTC100K on contacts S1, S2. If an external sensor is attached, the internal will be disabled so only one can work at
the same time.
In no case you should attach electrical wirings of L and N to S1 or S2 contacts!! Warranty will be void!