Buzz Function
There is an audible 'buzzer/alarm' sound that can be 'activated' if desired/programmed to make noise if
1. The humidity or temperature is within [or outside of] a programmed range. of Humidity
2. The 'Therm" or "Humid" circuit is operating but the 'set point' has not been reached within a specified period of time
These are the PRIMARY functions of the BUZZ circuit.
I believe the Aristocrat uses this to 'indirectly' indicate a need for refilling the humidifier/humidifiers