Constant Flow Controller

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OVERVIEW

The VCMH is a mechanical constant volume damper. The damper is designed to maintain the design volume independent of inlet pressure. The design volume (m3/h) is easily set by adjustment of the external sliding scale. The operating range of the damper is 0.2 – 4" wg (+/-5%). Velocities < 390 fpm may give inaccuracies of up to 15%.

FEATURES

Seven model sizes available in this design with volume range (30- 1300 CFM) with low pressure drop. The model has low response pressure. The unit can be mounted horizontal, vertical or at an angle. Each unit can be fully adjusted on the site within its operating limits.
The VCMH constant volume damper is not affected by the mounting position. The technical specifications are only valid if the supply to the unit is even. It is recommended that inlet ductwork matches the model size and is 3 XD mm straight in length.

Application

The VCMH is a mechanical constant volume damper. The damper is designed to maintain the design volume independent of inlet pressure. The design volume (m3/h) is easily set by adjustment of the external sliding scale. The operating range of the damper is 0.2 – 4" wg (+/-5%). Velocities < 390 fpm may give inaccuracies of up to 15%.

The Active Chilled Beam can be a simple stand alone unit or can be combined with light fittings, audio and sprinkler systems etc. to provide a multi service functionality

HOW TO USE

The units are typically used in the following types of buildings:

  • Commercial offices
  • Schools, universities, congress centres, etc.
  • Government institutions like city halls, libraries, etc.
  • Hotels
  • Laboratories

The units require limited building space for comfort control and the system operating conditions provide the advantages of:

  • Smaller central air handling unit.
  • Smaller ductwork distribution.
  • Smaller hot and cold water pipe work
  • Low unit height means reduced suspended ceiling

The system reduces running costs by:

  • Reducing the supply conditions of fresh air, and the cooling, heating of the building.
  • Very efficient and energy friendly therefore reducing cost of central systems.
  • Integration with intelligent control systems will optimise energy costs reducing primary air flow rate when unoc cupied and benefiting from free cooling when possible.
  • No specific maintenance is needed, no moving parts, filters etc.

The use of the OKNI Active Chilled Beam is expanding, since the market for the application of induction units is growing rapidly in buildings in more parts of the world and now provides clients with an alternative to traditional systems like VAV or CAV, Fan Coil- and VRV-systems.

Installation List

COMING SOON...

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EB Air Control Inc. was incorporated to providing highest quality solutions for HVAC and related industries with strong characteristics towards design and technology for "indoor air comfort and quality".