Q)Should I use a humidistat control?
Humidistat controls work best for applications requiring 80% RH or less. If you need to maintain RH above 85%, do not consider using a mechanical humidistat control.
If you are interested in evaporative cooling and have thermostatically controlled exhaust fans, using a humidistat control is a great choice. The two independent systems will work very well together, for cooling as well as for providing a maximum set point for relative humidity control.
How can I control high humidity applications?
To maintain near 100% relative humidity with little or no ventilation:
Operate the Turbo XE continuously and use the flowmeter panel to control the fogging output to maintain the desired high humidity level.
Humidistats are generally not reliable in high humidity applications. For dependable control of a high RH application, it is best to operate Turbo XEs continuously. Using an appropriately sized flowmeter panel allows for simple and dependable control of the high humidity level.
Maintaining near 100% RH with strong ventilation:
This application requires switching between two different fogging outputs. This is a common requirement in greenhouse propagation.
The low fogging output is used when ventilation is not occurring, while a much higher output is needed when the ventilation system is active. The fogging system will have to either be manually adjusted or a Two-Stage Timer Control can be used to automate between the two different fogging outputs.
Q)Are these fans similar to those used at football games?
The equipment used at games is similar; however, those fan systems have nozzles and are designed to produce water particles large enough that they can be projected into contact with players, and the high volume fan evaporates the small droplets off the player, resulting in rapid heat removal directly from the player’s surface.
Q)Can I achieve evaporative cooling indoors?
In most cases, you cannot create evaporative cooling in an indoor environment; however, if there’s a strong ventilation system available, and a significant increase in humidity would not have a negative impact, then it is possible.
Every gram of water that evaporates absorbs 536 calories of heat, producing humidity that builds quickly. Without ventilation, cooling effects attenuate quickly as the humidity builds. At 100% RH, no cooling occurs.
Q)How do I know when the environment is near 100% RH?
For best results, measure RH using a quick responding digital humidity indicator with a range up to 100%. Please note: the device should not be kept inside the application room for extended periods of time.
If you want a less expensive way to measure RH, or want to monitor the humidity in the application area for extended periods of time, then place a block of aluminum and a block wood next to one another. The aluminum will attract condensation at 85% RH and the block of wood will attract condensation at 100% RH. So maintaining a wet block of aluminum along with a moist block of wood is a good indicator that you are near 100% RH.
- If the block of wood gets wet, rather than moist, then you will know that the area is likely being over-humidified, with the possibility of product damage occurring. In this case, a decrease in fogging output is needed.
- If the block of aluminum is dry, then you know that the area is below 85% RH and an increase in fogging output is needed.
Q)What is the fog particle size and will floors get wet?
The low volume output CRSM and ORSM units have particle sizes averaging less than 10 microns. Floors or nearby surfaces do not get wet.
Particle sizes for the HRSM range from 10 to 40 microns with the probability of slightly wet floors near the unit in most interior applications.
HRSMs have an adjustable flow control that produces a range of particle sizes.
@ high fog output, particle size averages 40 microns in size
@ mid fog output, particle size averages 25 microns in size
@ low fog output, particle size averages 10 microns in size
Particles measuring 50 microns or smaller will usually evaporate before hitting the floor. “Mother Nature’s” fog averages 5 to 10 microns in size.
Whether your floors become wet or stay dry is largely dependent on the amount of fogging output and the unit’s mounting height. The fine-line between maximizing fog output and maintaining floor dryness is usually achievable. Every customer has different needs and this is why the adjustable flowmeter control is a key feature.
Even the smallest fog particles can collide with others and result in fallout, while Turbo XEs also have occasional water drops fall from their housing. It's important to consider these factors when installing fogging equipment. We recommend suspending units up high and where there is no sensitive equipment directly underneath.
Q)Do these atomize identically to the Turbo XE series?
Yes, the Mobile units are essentially Turbo XEs equipped with mobile recirculation tanks underneath.
If you need additional technical support or have a question, we can be reached 8:30 AM to 5:30 PM central time, Monday through Friday at:
Phone: 800-531-4769 (toll-free US and Canada) or 251-471-5328
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