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Pictures for illustrating purposes only
SERIES EHU-750 HUMIDIFIER
Maintenance - Valves
The drain valve should be serviced whenever the steam
cylinder is cleaned or changed.
Once the steam cylinder has been pulled out (please refer to the
« cleaning of the steam cylinder » page ), disconnect the drain
valve supply wires.
Unscrew the solenoid retaining nut and remove the washer. Put
them on the cylinder compartment tray.
Remove the coil from the valve stem.
Unscrew and remove the valve stem and the filling hose from the
valve body.
Important : Apply some soap on the O-ring and the cylinder
draining outlet
Remove the « O » ring and the drain valve collar. Remove any
pieces of calcius, rinse the steam and the body with fresh water.
Assemble in reverse order.
It is now time to locate the new or cleaned steam cylinder in its compartment in proceeding
this way : set the maintaining clip on the steam cylinder outlet, engage the drain outlet into the
drain valve and push the cylinder downward. Reconnect the power cables. Make sure that the
power cable with the brown identification mark be connected to the cylinder connection identified
with a brown spot. If the brown spot is missing, the cylinder electrode connection can be
identified as the one closest to the high water level probe. Locate the steam hose and fasten the
clamp.
Ensure that all the clamps are properly tightened whenever the humidifier is
maintained.
DRAIN VALVE MAINTENANCE
