• If the thermostat is in
cooling mode
, it will automatically switch to Heating if the room
temperature falls below the corresponding setpoint
for Heating mode.
• If the thermostat is in
heating mode
, it will automatically switch to Cooling if the room
temperature rises above the corresponding setpoint for Cooling mode.
Example
If the thermostat is in heating / standby mode, it will automatically switch to cooling when
the room temperature rises above the setpoint configured for cooling / standby mode.
Changeover protection band
In order to avoid situations where the thermostat is continuously switching between heating and
cooling, an additional parameter is introduced that allows defining a “Changeover protection
band”. The thermostat will not switch between heating and cooling until the difference between
the room temperature and the current setpoint is
greater
than the protection band.
Example
Let’s assume the following configuration:
• Thermostat is currently in Cooling mode
• Current operating mode is Comfort
• Comfort setpoint for cooling is set to 25ºC
• Comfort setpoint for heating is set to 24ºC
• Changeover protection band is set to 2ºC
• Initial room temperature is 26ºC
Normally, the thermostat would switch to heating mode as soon as the room temperature
falls below 24ºC. However, because the changeover protection band parameter is set to
2ºC, the switch to heating mode will only happen when the room temperature falls below
23ºC.
3
The setpoint that is considered is the one corresponding to the same operating mode that is currently active
(comfort, standby, economy, protection) but for Heating mode.
2.4
Thermostats
33
