Device presetting

You can preset the thermostat on the first power-on or immediately after a factory reset. The thermostat will require the selection of a preset to pre-configure settings depending on what the thermostat is directly controlling, which allows the thermostat to function correctly for the intended use case. Preset selection is a manual process and all preset uses a PI control algorithm which provides highly stable results.

You can choose one of three preset configurations:

Preset	Configuration	*Cycle Time (min)**	Valve Protection (by default)
P1	Heat Pump/Oil Boiler	20	Off
P2	Hydronic Radiator/Gas Boiler	10	Off
P3	Hydronic Underfloor	10	On

You can also enable/disable valve protection in Wiser app. Refer valve protection settings.

*Cycle time: This setting determines the length of each on/off cycle of the output relay. The percentage of time within that cycle time that the relay is on is varied based on demand. A longer cycle time may be more appropriate for slow heating surfaces, such as a concrete floor. A short cycle time is more appropriate for faster heating surfaces, such as an electric panel heater.

Initial preset configuration (by default)

When the thermostat is first powered on or immediately after a factory reset, by default “P1” flashes on the matrix LED’s to indicate Preset (P1) is selected to provide initial configuration.

Modifying the preset value

When the rotary push-button is turned clockwise, it increases the preset value by 1 and rotating rotary push-button anti-clockwise, it decreases the preset value by 1.

For example, when the rotary push-button is turned clockwise, preset P1 becomes P2; continue rotating the rotary push-button clockwise, and the preset changes to P3.

Similarly, when the rotary push-button is turned anti-clockwise, preset P3 changes to P2; if the rotary push-button is continue rotating anti-clockwise, preset P2 changes to P1.

Confirming the preset
Select the preset that meets your needs by turning the rotary push-button, and then hold the rotary push-button for > 1 s to confirm the selection.

For example, P1 is confirmed.

Cycle Time : 20 mins
Valve Protection : Off