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The Master Group sells only in Canada.

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Rooftop Unit Y** (Millennium Series) York

Rooftop Unit
Y** (Millennium Series) 323-504 MBH

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  • Double-wall construction with galvanized sheet metal liner to protect against microbial growth
  • Rigid sheet metal inner liner to keep insulation out of the airstream
  • Sloped drain pan protects against pan corrosion and bacterial growth
  • Pitched roof design for natural drainage
  • Scroll compressors for efficiency and durability. Multiple refrigeration circuits for greater turndown and the best unloading capabilities in the industry
  • Extended flue connection on gas units to eliminate the possibility of corrosion in the furnace heat exchanger
  • Constant air volume or Variable air volume by inlet guide vanes or variable frequency drive
  • Full range of airflows and static pressures to meet most every application requirement
  • Single power point connection for gas and electric
  • Simple controls that are easy to understand, apply, and update
  • Rain hoods rotate into place—an easy one-person job
  • Easy service access with hinged and latched doors on both sides of the unit
  • Durable finish, made of powder-painted, galvanized steel to meet 1,000-hour salt-spray test demands
  • Optional head pressure control where mechanical cooling is required below 40°F; allows compressor operation down to 0°F
  • Optional high-efficiency motors are easily installed to meet tighter codes
  • Complete line of factory-installed accessories, including economizers, electric heat, power exhaust, a variety of blower horsepower ratings, and more
  • Optional Systhesys® Unitary Control system. Designed for stand-alone operation or connection via N2 or LON connection for BAS compatibility

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