Frost Protection
The frost protection feature is developed to keep your building's structural integrity safe in case of decreasing temperatures.
The logic behind the Frost Protection is as follows:
If the Frost protection is enabled AND
If the Measured Temperature < Frost Protection Temperature Threshold, THEN
If the device is off, it turns on
Set-point is set to Frost Protection Set-Point
Device switches to heating (IF AVAILABLE as per the applications (wiring diagrams))
An icon is shown on the display
Frost protection status is reflected in the keep-alive.
To exit the mode, you can:
Either interact with the device's buttons (e.g. change target temp) OR
Send a downlink to change target temp, on/off, mode, fan speed.
If you exit the frost protection mode, but the measured temperature is below the Frost Protection Temperature Threshold, the function will reactivate and execute the protection steps again.
Frost protection ON/OFF status
You can change the frost protection ON/OFF status with the following command set.
Frost protection set-point and threshold temperature
This command is used to set the frost protection set-point and threshold temperature values.
The allowed range is 5...20Β°C (1Β°C resolution).
Frost protection status
When the frost protection status changes, the command is sent together with the keepalive of the device. The keepalive data in the example below is omitted for clarity.
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