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How Our Systems Work

Praecis Environment—Climate Control

Praecis provides complete ultra-precision climate control for any size enclosure or room. All environmental variables including temperature, humidity, pressure, and vibration are controlled to the highest level of technological development.

The Praecis Environment components are modular and highly customizable. Each Environment system is designed for the application and can be retro-fitted to existing enclosures.

Air Temperature
Control Unit

The core of Praecis Environment system is the Praecis Air Temperature Control Unit (ATCU). The user established a point of interest or Critical Point. The

The ATCU delivers temperature controlled air to the enclosure via the Praecis Air Distribution system (textile ducting and baffling).

Movement of Air

  • The ATCU connects to the enclosure via a single duct, which is part of the Air Distribution system.

  • Fans in the ATCU push the air through the duct into the plenum/textile “mattress” at the top of the enclosure.

  • As the air passes through the plenum, the precision-drilled holes in the textile mattress create a downward laminar airflow.

  • Referred to as an “air shower,” the temperature-controlled air flows around the Critical Point (CP). A sensor at the CP sends information back to the controller.

  • The air exits out the bottom of the enclosure.

  • Exhaust heat from the ATCU vents via a duct outside the room.

Air Temperature Control

Præcis uses a laminar-flow air shower to hold the temperature to a pre-set level at the desired Critical Point.

Temperature sensors throughout the ATCU, ducting, and enclosure send signals back to the Praecis Control system. Adjustments are made instantaneously.

Humidity Control

Præcis uses steam to control the enclosure humidity.

Heating elements immrsed in water create steam, which then transferred to the enclosure air duct.

Solid state relays, managed by the Praecis Control System (PCS), controls the amount of heat delivered to the water thus controlling the steam flowrate.

The humidified air goes through a tube directly into the enclosure intake the air duct.

Temperature sensors within the ATCU, ducting, and enclosure send signals back to the ATCU computer.

When humidity control is required, the ATCU’s air flow also delivers gaseous water (steam) to the enclosure.

The Praecis Control Software system manages all variables through a single computer interface.

 
The basic Praecis Environment system consists of an Air Temperature Control Unit (ATCU), an enclosure, and the Praecis Air Distribution ducting.

The basic Praecis Environment system consists of an Air Temperature Control Unit (ATCU), an enclosure, and the Praecis Air Distribution ducting.

 
Precision temperature control at  the Critical Point. A sensor is close  to the Critical Point.

Precision temperature control at
the Critical Point. A sensor is close
to the Critical Point.

 
laminar airflow
 
temperature control critical near point