Pulse Of The Heat Exchanger

AIR COOLING UNITS

At KRN Heat Exchanger & Refrigeration Ltd., we design and manufacture Air Cooling Units that deliver efficient, uniform, and reliable cooling for commercial and industrial cold storage applications. Our range includes Single Discharge, Dual Discharge, and Floor Mounted Special units, each engineered to provide optimal air distribution, energy efficiency, and long service life.

Single Discharge Air-Cooling Unit

The Single Discharge Unit is designed with a unidirectional airflow system that delivers focused cooling in medium- to large-size cold rooms. Its compact design and high-efficiency fans make it ideal for walk-in freezers, chillers, and cold storage chambers.

Design & Construction

  • Single discharge airflow design for uniform temperature control
  • Copper tube and aluminum fin coil with protective coating options
  • Compact, ceiling-mounted configuration for space optimization
  • High-performance axial fans with EC/AC options
  • Low-noise operation with efficient defrost systems (electric or hot gas)

Performance Data (Typical Range)

  • Cooling Capacity: 3 kW – 40 kW
  • Temperature Range: –5 °C to –40 °C
  • Fans: 1–6 axial fans (300–630 mm)
  • Airflow: Optimized for medium to large storage areas

Dual Discharge Air Cooling Unit

The Dual Discharge Unit features bi-directional airflow, delivering cooling from both sides for even temperature distribution across larger cold rooms. This makes it ideal for facilities requiring high-volume air circulation.

Design & Construction

  • Dual airflow discharge for wide-area coverage
  • Rugged casing with corrosion-resistant finish
  • Multiple fan arrangements with EC/AC motor options
  • Coil design with optimized fin spacing to reduce frost buildup
  • Flexible mounting design for medium- to large-size installations

Performance Data (Typical Range)

  • Cooling Capacity: 5 kW – 80 kW
  • Temperature Range: –5 °C to –40 °C
  • Fans: 2–10 axial fans (350–800 mm)
  • Airflow: Strong, uniform distribution for large volume cooling

Floor Mounted Special Air Cooling Unit

The Floor Mounted Special Unit is engineered for heavy-duty, large-scale cold storage applications. Installed at floor level, it provides high-capacity airflow and robust cooling performance, making it ideal for facilities with high ceilings or heavy product loads.

Design & Construction

  • Heavy-duty floor-mounted design with reinforced frame
  • Large capacity coils with stainless steel or copper tubes
  • High-powered fans for maximum airflow and heat transfer
  • Easy access for service and cleaning
  • Customizable for special cold storage or industrial needs

Performance Data (Typical Range)

  • Cooling Capacity: 10 kW – 120 kW
  • Temperature Range: –18 °C to –45 °C
  • Fans: 2–12 heavy-duty axial fans (500–1000 mm)
  • Suitable for bulk and high-density cold storage applications