50
Pictures for illustrating purposes only
ROUTINE SERVICE
After the humidifier has run for about one hour time, check for any water leakage at the
cylinder gasket and at the drain valve.
The cylinder should be inspected after about 50 hours of run. Make sure there is no arcing nor
sparkling between the electrodes when the unit is in operation. As well, when switched off, all
the contactor screws and the steam, drain and internal hose clamps should be retightened.
A complete inspection of all the humidifer hoses should be made after one year of operation.
Any faulty or damaged hose must be replaced to prevent leakage.
WARNINGS
When the humidifier is used for a long time or operates with a very conductive water, solid deposits
built-up on the electrode plates which can make the water even more conductive.
If electrical arcs can be seen inside the steam cylinder, the humidifier doesn’t operate properly.
Switch off the humidifier immediately. This arcing involves :
Excessive heat on the plastic shells that can eventually make the material melt and make a
hole from where scalding water can escape.
Circuit breaking caused by excessive intensity.
Faster corrosion of the electrode plates.
Burning of the electrode power cables.
Points to check in case of arcing
If the humidifier works with softened water, ensure that the softener does not supply salt water
to the humidifier.
Ensure that the drain valve works properly and clean it up (see after page n° 56).
Ensure that the F3 drain valve fuse is still in order (ref : 500102).
CAUTION
Always isolate all electrical and water supplies to the humidifier before commencing any
maintenance and refer to the instructions given in this manual.
The EHU-750 humidifier includes live electrical components and the steam cylinder contains boiling
water. All maintenance must only be carried out by skilled and qualified personnel.
SERIES EHU-750 HUMIDIFIER
Maintenance - Check points
