Temperature Control Mode

The thermostat supports 3 control modes:
Mode Description
Heat Adjust the heating valve to rise the temperature
Cool Adjust the cooling valve to lower the temperature
Ventilation Turn off the valves or output 0V

Heat or Cool Mode Control

The heating or cooling process is mainly decided by the target temperature and the tolerance.

Heat: start heating when Tnow < Tset - To, stop heating when Tnow ≥ Tset + To

Cool: start cooling when Tnow > Tset + To, stop heating when Tnow ≤ Tset - To

Example:

Configuration Description:
0-10V Valve Control (WT304 Only)

When the thermostat connects a 0-10V valve, it requires to configure the change rate of valve opening according to the difference between the current temperature and heat/cool stop point. Take below configuration example,

Heat: When current temperature (Tnow) = 19°C, Terr=5°C, the valve will output 50% of 0-10V; after 30s, it will check the Terr value again and change the valve opening the percentage until reaching the heat stop point.

Cool: When current temperature (Tnow) = 27°C, Terr=5°C, the valve will output 50% of 0-10V; after 30s, it will check the Terr value again and change the valve opening the percentage until reaching the cool stop point.

Configuration Descriptions:
Tip: When the thermostat stop controlling, the valve will output 0V to stop working. You can also send downlink command to change the valve status to output minimum opening range and change the fan status to Low.

Temperature Control and Dehumidify

When reaching the target temperature range but beyond the target humidity range, the thermostat will keep cooling or heating to dehumidify. This will extend the heating/cooling time and affect the temperature control stop points. Take below example:

Configuration Description: