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McQuay Water Source Heat Pumps: Enfinity Horizontal, Vertical, and Console Units

A water source heat pump moves heat between a room and a building water loop. Each unit heats or cools its own space, and the loop carries heat from rooms that are cooling to rooms that are heating. Schools, hospitals, office buildings, hotels, and apartment buildings use them. McQuay has built them for more than 40 years.

Enfinity: horizontal and vertical

  • Horizontal units hang from the ceiling, saving floor space. Interchangeable panels let installers change airflow direction in the field, which helps in retrofits.
  • Vertical units sit in closets or mechanical rooms.

Two operating ranges:

  • Standard range: loop water from 55°F to 110°F, for typical boiler and cooling tower loops.
  • Extended range: loop water from 25°F to 110°F, for geothermal systems.

Features include a coaxial heat exchanger, a vibration-isolated compressor, an insulated steel cabinet, flush water fittings, and access panels for the compressor and controls. Controls run standalone on MicroTech III or networked.

Console units

Console WSHPs sit at floor level against an exterior wall, like a PTAC, but connect to the water loop. They come in slope-top or flat-top cabinets and high-sill or low-sill versions, with shallow Antique Ivory cabinets that fit hotel rooms and apartments.

Replacing a water source heat pump

  • Get the model and serial number from the existing unit. The model encodes size, configuration, and voltage.
  • Confirm the loop type. A geothermal loop needs an extended range unit.
  • For horizontal units, note the airflow arrangement and supply and return locations.
  • Check whether the building uses networked controls, so the new unit integrates.

Sometimes the better answer is a part, not a unit. We supply compressors, motors, coils, and control boards for McQuay equipment. See McQuay parts.

More on the McQuay water source heat pumps page. We also supply Comfort Aire horizontal, vertical, and console water source heat pumps.

Send the model and serial number through the contact form or call 800-866-1210.


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