UL Type 3R/4 Blue e Wall-Mounted A/C for Enclosures Now Available

Blue e UL Type 3R/4 wall-mounted air conditioners

UL Type 3R/4 Blue e wall-mounted air conditioning units from Rittal are an excellent choice for indoor or outdoor enclosures such as:

  • wastewater facilities
  • transportation and toll booths
  • solar and alternative energy applications
  • outdoor kiosks
  • food and beverage facilities

The addition of the new UL Type 3R/4 Blue e units?provide protection from the harmful effects on equipment due to the presence of water and the external formation of ice and add?outdoor solutions?to the Rittal air conditioner climate line.

UL Type 3R/4 Blue e features:

  • Type 3R/4 for either indoor or outdoor use and provides protection from water, rain, sleet and snow
  • Save up to 45% in energy consumption
  • Vandal-resistant Comfort controller located inside the enclosure
  • Functionality and capacity tested before shipment to ensure trouble-free operation
  • UL and cUL Listed?


Rittal's use of?nanotechnology helps resist filiform corrosion on condenser coils?to offer greater energy efficiency. Coated condenser coils do not affect the cooling capacity of the unit, and in most cases, a filter is not required.?

Rittal's?closed-loop system maintains a Type 3R/4 rating and creates an environment in the enclosure that is cooler inside than the surrounding temperature. With an internal temperature set point of 95 °F, Rittal air conditioners are designed to operate at temperatures up to 122 °F.


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