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HVAC & Refrigeration

IRAN HVACnR - IRXP - Middle-East & Asia Events, Expo, Conferences

Main benefits of drives:

  • Improved comfort control
  • Operating duties matched to required loads
  • Optimizing operating conditions
  • Achieve improved energy efficiency
  • Reduced wear and tear and increase service life
  • Lower life cycle installation cost
  • Ease of commissioning
  • Ease of system tuning

HVAC:

Most basic application :

  • Commissioning aid for fixed duty systems of any type where the VFD is set at a pre-set fixed speed, typically less than full speed - static mode

- Airside:

  • AHU supply air fans and return air fans where used.
  • Typically used to modulate (Dynamic Control) the fan duty to achieve a variable flowrate maintaining target duct static pressure in response to changing demands
  • Typical system is a VAV system

- Exhaust air or supply air ventilation fans when variability in load exists:

  • Carpark exhaust air fans to achieve acceptable CO levels
  • Other air quality/maximum concentration levels of contaminants
  • Modulation of flowrate in response to varying temperature demands 

- Critical spaces pressure control to avoid contamination and to control directionality of air flow:

  • clean rooms and laboratories
  • pharmaceutical manufacturing
  • switch rooms or equipment rooms

- Critical spaces pressure control to avoid infection control and to control directionality of air flow:

  • operating theatres
  • sterile stores
  • isolation rooms etc.

- Life Safety:

  • Stair well pressurisation and lobby relief fans
  • Smoke exhaust and smoke control system fans

Refrigeration:

- Variable capacity of refrigeration compressors:

  • condensing units
  • packaged air conditioning units
  • air and water cooled chillers
  • External driven compressors or complete proprietary compressor/motor units

- Variable duty primary and/or secondary chilled water pump operation to match changing chilled water system load requirements

- Variable duty condenser water pump operation to match changing cooling tower/condenser water system duty requirements

- Variable condenser fan operation to provide stable and optimised refrigeration system operation in air conditioning and refrigeration condensing equipment

 

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Addresses : >
Convertwell Oy Ab
Kirjokannenkatu 11
202660 Littoinen
Finland
Email : info@convertwell.fi
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    HVAC & Refrigeration

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