Owner's manual
HCPpage 31
14 Audible alert signals
The interval sound indicates a fault in the temperature control system or the humidifying system. It is
triggered in the following cases:
Fault in the temperature control system:
Tb activ - temperature limiter activated if the temperature limiter operates
(see section 12.1)
hi-alarm - overtemperature alarm activated if the overtemperature
protection operates (see section 12.2.3)
lo-alarm- undertemperature alarm activated if the undertemperature
protection operates (see section 12.2.3)
asf-alarm - temperature outside tolerance if the automatic monitoring
function operates (see section 12.2.4)
Fault in the humidifying system:
when the water container is empty.
when the humidity exceeds the selected setpoint for longer than 30
minutes.
DOOR OPEN when the door of the unit is opened for longer than 3 minutes.
The audible alarm can be switched off temporarily by pressing the SET key.