Hoffman G280626G050 | SpectraCool Indoor/Outdoor G28 AC, 6000BTU 230V, Lt Gray, Steel
Hoffman G280626G050 | SpectraCool Indoor/Outdoor G28 AC, 6000BTU 230V, Lt Gray, Steel

Hoffman G280626G050 | SpectraCool Indoor/Outdoor G28 AC, 6000BTU 230V, Lt Gray, Steel

Part Number: 646137
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SpectraCool Air Conditioners are available in three sizes that offer a broad range of cooling capacities and configurations. These units deliver reliable enclosure cooling in demanding environments that features reliable design, clean appearance, easy installation, and a filterless design.

Select units come with Remote Access Control (RAC), an integrated, parametric controller designed to work seamlessly with our enclosure air conditioner units for the purpose of remotely monitoring and managing anywhere from a single unit to an entire network of Spectra cool air conditioners from virtually anywhere in the world with a secure internet connection. Ensure that your systems are always running at optimal temperature levels, increase productivity and improve overall system reliability.

Partial Recess Mount units are not eligible for Type 4 or 4X ratings. Also not eligible for Telcordia GR-487 certification.

Cutout Adapter options for enclosures with older nVent HOFFMAN or Competitive units for easy transitions to new air conditioners


Main Features

  • Attractive industrial design with minimal use of visible fasteners
  • Energy-efficient rotary compressor on most models
  • Cleanable, reusable aluminum mesh filter included to protect coils for maximum cooling performance in dirty environments
  • R407c and R134a refrigerants
  • 115, 230 and 400/460 VAC 3-phase power input on most models
  • Reliable mechanical thermostat on enclosure side of the unit
  • All G-series come standard with two separate thermostats for cooling and heating when a heater is equipped
  • Dust-resistant condenser coil allows the unit to be run filterless in most indoor applications
  • Dual condenser-side air movers for performance redundancy on G52 and G57 models
  • Galvanized or stainless steel cover for rugged factory and outdoor environments
  • Exterior and partially recessed mounting options
  • Easy-mount flanges for simple installation
  • Every unit functionally tested before shipping
  • Standard Indoor Air Conditioner models also include: Active condensate management with heater strip, power-off relay for door switch and other system requirements, malfunction switch, and a digital display on ambient side
  • Standard Outdoor Air Conditioner models also include: Telcordia GR-487 capable*, Corrosion-resistant coatings on condenser coil for Type 4 units and on condenser coil and ambient-side copper joints for 4X units, malfunction switch, compressor heater, head pressure control, standard G28/G52 units have 2000W, and operating temperature range from -40 F/-40 C to 131 F/55 C
  • Remote Access Control Units support up to 2 temperature sensors and 10 alarms. They support multiple communication protocols: SNMP, Modbus TCP, Ethernet/IP, and Profinet.
  • Mounting hardware, gaskets and user manual furnished with the unit


Industry Standards

  • UL/cUL Listed; Type 12, 3R, 4; 4X optional; File No. SA6453
  • CE
  • EAC
  • IP 56 Internal Loop
  • IP 34 on External Loop


Hoffman On Demand Alternatives

  • Catalog #: G572046G050
  • Catalog #: G521246G050
  • Catalog #: G521226G050
  • Catalog #: G521216G050
  • Catalog #: G520846G050
  • Catalog #: G520826G050
  • Catalog #: G520816G050
  • Catalog #: G280646G050



Height28.59 in / 726.186 mm
Width17.01 in / 432.054 mm
Depth10.18 in / 258.572 mm
Nominal Capacity Btu/h6400 Btu/h
Nominal Capacity Watts1874 W
Nominal Voltage230 V
Voltage AC200 V
Operating Temperature50 – 131 °F / 10 – 55 °C
Max Current5.8 A
Protection RatingNEMA Type 4; NEMA Type 3R
Remote Access ControlNo
MaterialMild Steel


Documents and Downloads

Hoffman G280626G050 Data SheetClick to View
Hoffman G280626G050 CE-00117Click to View
Hoffman G280626G050 SpectraCool Indoor/Outdoor G28 Instruction ManualClick to View
Hoffman G280626G050 SpectraCool Indoor/Outdoor Spec SheetClick to View

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