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4.3 Carrying out manual draining
Proceed as follows to drain the unit manually:
1. Briey press the drain key. The draining dialogue appears in the
display.
Note: With double units both cylinders can be drained separately in the
draining dialogue.
2. Press the <Start> key. The heating voltage is interrupted and the drain
pump starts. The yellow LED ashes.
To stop the drain cycle briey press the <Stop> key.
Note: by pressing the <Esc> key the display unit returns to the indication
level. A draining cycle in progress is interrupted automatically.
4.4 Taking the unit out of operation
In order to take the steam generator out of operation, perform the following
steps:
1. If the unit has to be switched off because of a malfunction, please note
the error code (number of ashes of the red and yellow LED) of the
actual error message shown in the display.
2. If possible, wait until the drying process of the steam bath cabin is n-
ished.
3. Close the shut-off valve in the water supply line.
4. Start manual draining (see chapter 4.3) and wait until the steam cylinder
is empty.
Note: If the drain pump is defective, the steam cylinder is to be emptied
manually via the manual draining hose.
5. Actuate the unit switch.
6. Disconnect steam generator from the mains: Switch off all service
switches to mains supplies (heating and control voltage) and secure
switches in “off” position against accidentally being switched on, and
clearly mark the switches.
7. If ambient temperatures ≤ 0°C must be expected when the unit is out
of operation (operation of the Nordmann AT4 D in a protective housing
outside the building): drain the water supply pipe and the water lter
(lter valve).
WARNING!
Danger of burning!
If steam was produced just before the unit is taken out of operation, wait
before opening the unit and let the steam cylinder cool down to prevent
danger of burning.
Start
Manual Drain
Press START or STOP
Cyl.Cyl.B
Esc
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