Operation; Commissioning - Nordmann AT4 Operating Instructions Manual

4

Operation

4.1

Commissioning

AT4
STARTUP:
INIT MODULE
AT4 130kg/h 400V3
Standby
2011-08-31 12.00.00
Menu
AT4 130kg/h 400V3
Demand :28%
2011-08-31 12.00.00
Menu
Proceed as follows when putting the steam humidifier into operation:
1. Examine the steam humidifier 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 panels are mounted and fixed with the
screws.
3. Open the shut­off valve in the water supply line.
4. Verify the set humidity value at the humidity controller or at the humidi­
stat, 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 humidifier.
The steam humidifier carries out a system test, during which all three
LED's light up.
If a failure occurs on the system test, a corresponding error message is
shown in the display.
after the system test the unit is in normal operation mode. The display
shows the standard operating display (first page of the indication level).
Note: The contents of the standard operating display depends on the actual
operating status and on the configuration of the Nordmann AT4 and can
differ from the opposite display.
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 fills 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 AT4 is operated with water of low conductivity it may
happen that the maximum steam capacity is not reached in the first few
hours of operation. This is normal. As soon as the conductivity has reached
a sufficient level (due to the vaporisation process) the humidifier will reach
the maximum steam capacity.
17