Description

The AAON LL Series was a packaged outdoor mechanical room available with chillers, boilers, and pumping packages (35-540 tons cooling and 500-6,000 MBH heating, Natural Gas or Propane). It was engineered for high-performance, energy-efficient operation, while being easily serviceable, and reducing field installation time and costs. Packaged outdoor mechanical rooms eliminate the need for an indoor mechanical room, making it ideal for new construction, building retrofits, equipment expansion, system redundancy, or temporary chilled water applications. Standard construction for the LL Series is sound attenuating double wall rigid polyurethane foam insulated panel construction with walk-in compressor, control and water system service vestibules. Air-cooled condenser chillers from 35-345 tons and evaporative-cooled condenser chillers from 35-540 tons, for comfort or process cooling requirements. Operation in low ambient conditions is available through the factory-installed variable speed condenser fans or optional low ambient control on the refrigerant system. Units are available with factory-installed primary or primary/secondary pumping systems with either constant or variable flow configurations.