Nordmann Engineering AT4 D - Operating Notes; Display and Operating Elements; LED Status Indicators

15
Note: If the Nordmann AT4 D is operated with water of low conductivity it
may happen that the maximum steam capacity is not reached in the rst few
hours of operation. This is normal. As soon as the conductivity has reached
a sufcient level (due to the vaporisation process) the steam generator will
reach the maximum steam capacity.
4.2 Notes on operation
4.2.1 Function of the display and operating elements
Display and control unit
Function: Conguration of the Nordmann AT4 D
Indication of operating parameters
Reset of maintenance counter
Performing diagnostic functions
red LED “Malfunction”
Function: The LED lights in case of a severe malfunction of
the unit (Error status). Further operation is not pos-
sible any longer. The error message is shown in the
display, see chapter 7).
yellow LED “Maintenance”
Function: The LED lights if the steam cylinder must be replaced.
green LED “Humidication”
Function: The LED lights if the unit produces steam.
Drain key
Function: Calls up the dialogue for the manual draining
Unit switch
Function: Switches the unit on and off. The switch is illumi-
nated when the unit is on.