Technical data

Precision Air Conditioning

Technical Manual : 6258867 F 07/2012

Design Features & Information

HUMIDIFICATION

In a humidifier with electrodes, steam is produced by passing a current between electrode

plates to generate heat. The higher the current being passed between the electrodes, the

greater the quantity of steam that is produced.

To modulate the rate of steam production, this system varies the level of water within the

cylinder, thereby increasing the immersion level of the electrodes and the current being

passed between them. The more conducting area that is available to pass current

between the electrodes, the larger the amount of steam that is produced.

Control Principles

Modulated by the controller, the water level is varied so that the level of

steam being produced ensures that the room humidity set-point is continually maintained

within a tight tolerance.

Optimised Lifetime

The life span of the Airedale humidification system is optimised by the inclusion of a water

conductivity sensor into the bottle feed. This sensor determines the conductivity level of

the supply water and by using an algorithm embedded in the software,

determines the frequency that the bottle should be drained.

EXAMPLE:

(Optimised Lifetime with

High Water Conductivity

Supply)

As liquid water is boiled off into steam, mineral deposits are left in solution increasing the

conductivity of the water. To counter this, the intelligent software increases the frequency

of drain meaning that the replenishing supply water keeps the concentration of minerals

diluted. By maintaining an acceptable mineral concentration, the bottle life span

is maximised.

GENERAL