HVAC & Refrigeration

HVAC & Refrigeration

Main benefits of drives:

  • Improved comfort control
  • Operating duties matched to required loads
  • Optimising 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
  • 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
  • Carpark exhaust air fans to achieve acceptable CO levels
  • Other air quality/maximum concentration levels of contaminants
  • Modulation of flow rate in response to varying temperature demands
  • Carpark exhaust air fans to
  • clean rooms and laboratories
  • pharmaceutical manufacturing
  • switch rooms or equipment rooms
  • achieve acceptable CO levels
  • Other air quality/maximum concentration levels of contaminants
  • Modulation of flow rate in response to varying temperature demands
  • 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

About

Convertwell Oy Ab


Convertwell Oy Ab
is highly specialised in variable frequency converters, inverters & control solutions. We have a large range of value added products and services to bring more value to our customers. We provide the best equipment, sales, after-sales services and technical support.