SECTION II UNIT OPERATION Basic Operation

SECTION II UNIT OPERATION

Basic Operation

Controlled humidification requires a very precise control system. The 6000 utilizes a solid state control to monitor performance and maintain humidity. The humidifier evaluates the operation and alerts the operator to problem conditions and prevents undesirable operation.

On initial start-up or a call for humidity, the humidifier will attempt to fill to its full load amp rating. The unit will not necessarily have a full cylinder of water. Water level depends on the conductivity of the water. The more conductive the water, the more current that can be passed through the same volume of water.

If the water is not conductive enough to allow the unit to reach full load amps (full capacity) on the initial fill; the cylinder full light will indicate a full cylinder condition. The unit will operate in this mode with repetitive fill and boil cycles unit the unit has concentrated enough minerals in the water to reach the rated amp level.

Once full load amp (FLA) has been reached, the fill valve will shut off. The unit will now compare the rate of change of amp draw to a time cycle.

If the water in the cylinder is mineral laden and hence very conductive, a dram cycle will be initiated.

After the dram cycle and or the time cycle is completed, the unit will refill and start the process over.

These cycles will repeat until:

•The call for humidity is removed.

•The cylinder is used up.

•A fault condition occurs.

On initial start-up, if the water is not conductive enough for the unit to reach FLA, the water will stop filling when the water reaches the cylinder f4U electrode. Once the unit has entered a cylinder full condition it will operate with fill and boil cycles only. By eliminating the dram cycle, the water conductivity will be increased by producing pure steam and letting the minerals behind. The increased mineral levels will raise the conductivity allowing the humidifier to draw sufficient amperage to achieve FLA. Normal operation will then commence.

As the electrodes in the cylinder are coated with minerals, the water level will slowly increase to the cylinder full level. Concentration will no longer allow the unit to reach FLA. After a period of time, the cylinder will display the red “Service" light indicating the need to change the cylinder.