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6.2 Commissioning
Proceed as follows when putting the unit into operation:
1. Examine the steam humidier and installation for possible damage.
DANGER!
Damaged devices or devices with damaged installation may present
danger to human life or cause severe damage to material assets.
Damaged units and/or units with damaged or faulty installation
must not be operated.
2. Check whether the front panel is mounted and xed with the two screws.
3. Open the shutoff valve in the water supply line.
4. Verify the set humidity value at the humidity controller or at the humidistat,
and readjust as required.
5. Switch on the service switches for mains supplies (heating and control
voltage).
6. Actuate the unit switch of the steam humidier.
The steam humidier carries out a system test, during which all the LED’s
light up.
If, after the system test:
– the yellow LED lights permanently, the steam cylinder maintenance
is due (see chapter 7) or the maintenance indication has not been reset
(see chapter 7.6).
– the red LED lights permanently, a fatal malfunction has occurred (see
chapter 8).
After the system test the unit is in normal operation mode.
As soon as the humidity controller or the humidistat requires humidity, power
is switched on for heating. The inlet valve opens (slight delay) and the steam
cylinder lls with water. As soon as the submerged electrodes heat the water
up the green LED lights up and after a few minutes (approx. 5–10 minutes,
depending on the conductivity of the water) steam is produced.
Note: If the Nordmann ES4 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 sufcient level (due to the vaporisation process) the humidier will reach
the maximum steam capacity.