High Efficiency H-Series Condensing Units

High Efficiency H-Series  condensing units are designed to meet United States Department of Energy (DOE) energy conservation standards for Walk-In Coolers and Freezers (WICF) which mandates minimum Annual Walk-In Energy (AWEF) ratings for condensing units. The minimum AWEF ratings vary based on application type* (cooler/freezer) and unit location (indoor/outdoor). In-scope are condensing units applied to an enclosed refrigerated space that can be walked into and has a total chilled storage area of 3,000 square feet or less.  Out of scope are water-cooled, remote, and satellite units, a condensing unit serving more than a single refrigeration load or serving refrigerated cases.

Hussmann and its Krack product provide a broad range of condensing unit solutions that meet the minimum AWEF requirements for WICF applications. 

  • Broad range of DOE compliant condensing units for WICF applications that have a chilled storage area of 3,000 squarefeet or less

  • Up to five different compressor solutions

  • Condensing units equipped with PSC fan motors operating at ¼ HP and 1075 RPM

  • New front grille design that reduces static air pressure prevalent with legacy H-Series units

  • Multiple refrigerants available including R-404A, R-407A, R-407F, R-448A, R-449A, and R-507A

  • Voltages available in 208/1/60 (Copeland Scroll only), 208/3/60, and 460/3/60

  • Engineered with a deeper pitch, more efficient fan blade design to maximize air flow

  • Over 900 Low and Medium Temperature condensing unit models available that meet DOE AWEF rating compliance for indoor and outdoor applications

  • Electrical panel moved from front to side panel providing greater access for larger compressors for application on medium size bases

  • Outdoor High Efficiency H-Series units now come standard with an adjustable head pressure control / hold back valve

  • Multi-fan High Efficiency H-Series units now come standard with an ambient temperature control for cycling off half the fans at approximately 40 °F using Johnson Controls A421
*Medium temperature: room temperature above 32 °F; Low Temperature: Room Temperature 32 °F and below

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