Compact Heat Exchangers

Noren Products Compact Cabinet Coolers offer the following features:

  • Cool electronics to slightly above the outside ambient air temperature with our air-to-air models, or install one of our air-to-water units for below ambient cooling.
  • Maintain a NEMA 12 air and dust tight seal with standard models. NEMA 3R, 4 or 4X can be maintained with other models.
  • Air is circulated inside the cabinet to keep hot spots from forming.
  • Flange and neoprene gasket keep contaminants out - ideal for dusty and dirty environments. No outside air enters the enclosure - EVER!
  • NEMA 4/4X models include wash down fans, allowing for safe hose down or sterilization processes to continue.
  • Corrosion resistant coatings and optional stainless steel construction protect against damage from harsh or corrosive environments.
  • Easy to install on the top, sides, front or back of your panel or enclosure. One person can easily install in one hour in most applications.
  • Energy efficient and low power requirement, no new electrical is needed.
  • UL/cUL Listed models available for 508a applications.
  • Freon free!

Ambient Cooling

Below Ambient Cooling

Fans

Filter Kits

Cut Sheets

Drop-in

Flush Mount

Air-to-Water

 

A Brief History

The Compact Cabinet Cooler was designed in 1981 to cool sealed electronic enclosures. Air conditioners were the only enclosure coolers available commercially at that time.The cabinet cooler was designed to eliminate several negative features of air conditioners: size and weight; high energy use; costly maintenance; short life (20,000 hours); interior condensation.

The useful life design requirement for the Cabinet Cooler was set at 50 years. The two major components that would determine this were identified as the Cabinet Cooler core and the fans.

Cabinet Cooler Core

The core material selected for use in the Noren Compact Cabinet Cooler was copper tubing and aluminum fins. This combination of materials was readily available and had been in use for many decades in refrigeration coils, steam heating coils, radiators, etc. Under normal conditions these materials do not corrode and would easily exceed the 50-year life specification. This combination of materials had an additional attraction, Noren Products had already been manufacturing copper heat pipes for over ten years. Thousands of hours of research and life testing had begun during the 1960s and had already been done on this type of heat pipe. The accelerated life tests had shown that a properly manufactured copper heat pipe of the design would last over 100 years.

Fans

The fans were designed to be an easily changed replacement part. The tube axial fans selected as the standard fans for Compact Cabinet Coolers have an operating life of 10 to 12 years. After about 5 years the bearings begin to wear and the fans start to get noisy. The operating temperature limits for the fans are -40°F to +160°F.

Rated life

In our literature Compact Cabinet Coolers are rated for 30-year life. Marketing surveys indicated that the actual 50-year rating was hard for customers to accept. A rating of 30 years was determined to be more understandable, still many times the life of an air conditioner. Heat pipes are rated for 100 years.