Optimized for use with any of the PREEVA series of indirect fired HVAC systems

Reznor's MASA is a condensing unit for outdoor installations, often combined with the PREEVA air handling unit. Reznor M series utilizes non-ozone depleting R-410A refrigerant. The system is designed to achieve three stages of cooling. The cooling capacities range from 5 to 20 tons at full load. To further enhance performance and corrosion resistance the M series uses the latest aluminum micro-channel heat transfer technology. This rugged and proven technology is used in automotive AC condensing coils and provides superior performance with lower weight.

MASA Product Literature


Key features of the MASA

  • Normal operating range 55° to 115°F ambient
  • Dual compressor system to provide 3 stage capacity control - 1/3, 2/3 or full
  • Pre-coat off-white gloss cabinet finish, G-90 coated material on exterior surface and primer on interior surface, 60 gloss, meets ASTM B117 specification for salt spray to 1,000 hours
  • Service access door
  • Corrosion resistant, easily cleanable, all-aluminum condenser coil
  • Liquid line filter driers - shipped loose with unit for field installation
  • Refrigerant receiver for each circuit
  • Fork lift openings built into the heavy gauge base
  • 208-230/3/60 unit supply voltage (20 ton unit available in 460/3/60 only)
  • 24 Volt controls


The MASA can be used in many markets including:

  • Retail
  • Offices
  • Showrooms
  • Schools
  • Exhibition Halls
  • Hospital-Medical
  • Sports Facilities
  • Churches
  • Warehouse/Distribution
  • Food & Beverage

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