Carel humiFog UA1K0HM00, User Manual

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1. How the humiFog Works
The humiFog humidification system is a high pressure atomizing system designed to produce a fine mist that readily evaporates to
raise the relative humidity. The atomizing humidifier is an efficient humidification system that is especially suitable for larger
installations, where high flow-rates of water are required without the necessity of excessive energy expenditure. When the humidity
value in the environment is less then the desired value, as measured by a probe or external controller, the controller starts the
volumetric piston pump, which sends the “treated” water to the nozzles.
The treated water; using a reverse osmosis or deionizer system, is pumped at a pressure of 1000psi (75bar) and sent via the
connection pipes to the atomizing nozzles. The nozzles then reduce the jet of water into a multitude of very fine water droplets (10-20
microns). Because of the fine droplet size, the water can then easily change its state and vaporize. The energy required for this
transformation is supplied by the ambient air; at a rate of 1070 BTU per lb/hour (690 W per liter/hour). Consequently, there is a
decrease in temperature in the environment being humidified, and this process may be useful in many applications (adiabatic
transformation).
The humiFog unit must be supplied with treated water, for the following reasons:

To reduce the introduction into the environment of dust due to the mineral salts found in the untreated water.

To minimize the clogging of the nozzles.
PUMPING STATION
ATOMIZING MANIFOLDS
800-1,000 psi
Mist Eliminator
A
B
ATOMIZING NOZZLES
Fig. 1.a
A - Duct/AHU Distribution