3.2 Relay's power supply
The Relay is powered by 220V main power.
Depending on your conguration, the Relay can be supplied by the boiler's main
(wireless thermostat setup), or can be supplied by any power plug in your home (wall-
mounted/wired thermostat setup).
4 What happens when Wi-Fi is down?
4.1 What happens when the Wi-Fi is shut down?
When the Wi-Fi stops, your Thermostat keeps working as a normal thermostat. It keeps
following its schedule, taking manual temperatures from the Thermostat itself, and follow-
ing away and frost-guard modes until you manually set the temperature dierently.
5 Heating algorithm
5.1 Heating algorithms
To decide when to turn On and O your boiler, the Thermostat uses 1) your heating
history, 2) the room temperature, 3) the setpoint temperature and 4) a given heating
algorithm.
This algorithm is the part in your Thermostat that takes decisions.
You can chose between dierent algorithms (hysteresis or PID, see below) in Settings
>Your Thermostat >Advanced settings.
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