250-400 CFM Vertical Conditioner

Precise control in a compact package

Parameter’s humidity generating systems are unique. Humidifying, dehumidifying, heating, cooling, and circulation capabilities are all packaged in one self-contained unit. This unit is specifically designed to provide 250-400 CFM of conditioned air to small rooms and reach-in chambers. The conditioner is designed to produce very precise humidity and temperature control.

Since this generating unit is self-contained, it can be easily used to condition existing spaces, small walk- in rooms, and custom chambers. This unit is a great choice if you do not have ceiling space above to house a conditioner. This vertical unit attaches directly to the wall of the room to minimize floor space required.

The 250 to 400 CFM unit is one of our smaller conditioners and is designed to easily connect to the conditioned space. This unit does not require compressed air or ultra pure water (tap water is generally fine). The interior and exterior are constructed of corrosion-resistant stainless steel. Low watt-density heaters also contribute to the unit’s durability. Various safety devices are also included.

The conditioner is controlled by Parameter’s Smart Pad, a user-friendly system that provides optimum accuracy and control. The Smart Pad is equipped with direct readings for both temperature and humidity. It also features 60 segment programming for automatic cycling. High-low or deviation alarms and serial communications port (with software) are standard.


Precise temperature and humidity control
High grade temperature compensated humidity sensor
Stainless steel construction
High-low or deviation alarms
Compact package


Consistent and accurate results
Confidence in the measured condition
Security and safety
Easy application

System is designed for connection to:

10 or 25 cubic foot Parameter reach-in chamber.
Existing reach-in chambers.
Walk-in rooms. (existing or provided by Parameter)

RH Variables Parameter Competition
Total ± 2.5% ± 6.0%
Control Constancy ± 0.5% ± 2.0%
Chamber Uniformity ± 1.0% ± 2.0%
Sensor Accuracy ± 1.0% ± 2.0%

9224-31E0 Series 250-400 CFM Vertical Conditioner SCHEMATICS

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