Nortec MES2 - Manual (Page 39)

Maintenance and Servicing | 36
Extended Shutdown
Should it be required to disconnect power to the humidifier for a period of extended shut-down,
always drain the cylinder first. Otherwise, the electrodes are subject to harmful corrosion which
drastically shortens the cylinder life.
1 Switch the On/Off/Drain Switch to the Drain position.
2 Wait until the humidifier is completely drained (usually takes less than 10 minutes).
3 Turn the On/Off /Drain switch to the off position.
4 Shut off power to the humidifier with the external disconnect.
5 Close the supply water shut-off valve.
Starting After Extended Shutdown
1 Check to see the humidifier has not been damaged and the installation has not been
altered.
2 Open the supply water shut-off valve.
3 Turn on the power to the humidifier with the external disconnect.
4 Turn the On/Off/ Drain switch to the On position.
5 Follow the start up procedure in the section titled Start Up Procedure on page 30.
Note: As long as the MES2 is powered, it will automatically drain the cylinder when there
has not been a call for humidity for an extended period of time. This feature will reduce or
prevent the possibility of corrosion of the electrodes and the accumulation of algae and
bacteria growing in the cylinder. The cylinder will remain empty until there is a call for
humidity at which time the fill valve will open and refill the cylinder. The unit will go
through its normal process for optimum operation.
Caution:
 Do not leave the switch in the DRAIN position indefinitely as the drain coil could burn
out.
 When disconnecting power to the humidifier for an extended period of time drain the
cylinder first to prevent harmful corrosion.