Hoffman G280416G050 4000 BTU/HR 115 Volt 1-Phase Sealed Enclosure Cooling Air Conditioner
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Manufacturer Hoffman Engineering
Mfg Catalog # G280416G050
North Coast Part # 678540


  • Energy-efficient rotary compressor on most models
  • R407c and R134a earth-friendly refrigerants
  • 115, 230 and 400/460 VAC 3-phase power input on most models
  • UL Listed to save customers time and money with agency approvals
  • Outdoor model operating temperature range from -40 F/-40 C to 131 F/55 C
  • Exterior and partially recessed mounting options
  • Attractive industrial design with minimal use of visible fasteners
  • Reliable mechanical thermostat on enclosure side of the unit; indoor air conditioner models include digital display on ambient side
  • Dual condenser-side air movers for performance redundancy on G52 and G57 models
  • Galvanized sheet-metal cover for rugged factory and outdoor environments
  • Easy-mount flanges for simple installation
  • Cut-out adapter options for enclosures with Genesis™ and T-Series air conditioners, enable users to easily transition to the new unit
  • Dust-resistant condenser coil allows the unit to be run filterless in most applications
  • Cleanable, reusable aluminum mesh filter protects coils for maximum cooling performance
  • Mounting hardware, gaskets and user manual furnished with the unit
  • Every unit functionally tested before shipping
  • Standard Indoor Air Conditioner models also include:
  • Acrtive condensate management with heater strip
  • Power-off relay for door switch and other system requirements
  • Malfunction switch
  • Standard Outdoor Air Conditioner models also include:
  • Telcordia GR-487 capable*
  • Corrosion-resistant components
  • Malfunction switch
  • Compressor heater
  • Head pressure control
  • Up to 2000 Watt (G28, G52) and 3000 Watt (G57) enclosure heater
  • Nominal cooling capacity:
  • G28 4000 & 6000 BTU/Hr. (1172 and 1758 W)
  • G52 8000 & 12000 BTU/Hr. (2344 and 3516 W)
  • G57 20000 BTU/Hr. (5861 W)
  • Outdoor model operating temperature range from -40 F/-40 C to 131 F/55 C


  • Units with Remote Access Control utilize a digital controller and communicate via EtherNet/IP, Modbus TCP/IP and SNMP over ethernet or modbus RTU over USB.
  • Partial Recess Mount units are not eligible for Type 4 or 4X ratings. Also not eligible for Telecoria GR-487 certification.
  • Reference the Spec Sheet in the Downloads tab for complete product specifications.


  • Model Code: 20931
  • Bulletin Number: MCLG
  • Catalog Number: G280416G050
  • Description: Indoor Model
  • Width (in.): 16.97
  • Depth (in.): 10.10
  • Fahrenheit Min.: -40
  • Fahrenheit Max.: 131
  • Max Current (A): 11.4
  • Weight (lb.): 84.00
  • Voltage: 100 - 120 VAC
  • Nominal BTU/Hr.: 4900
  • Nominal Watts: 1172
  • Height (in.): 28.55
  • Standards: UL/cUL Listed; Type 12, 3R, 4; 4X optional; File No. SA6453 || CE || EAC || IP 56 Internal Loop || IP 34 on External Loop || Telcordia GR-487 capable (Most outdoor models, not including Partial Recess Mount units)


UPC 78351020931
GTiN 00783510209315
Width 16.97 in
Color Light Gray
Voltage 120 Volt
Type Air Conditioners
Applications Industrial Automation, Telecommunications Equipment, Waste Water Treatment Systems, Package Handling Equipment, Security and Defense Systems
Depth 10.10 in
Height 28.55 in
Weight 84.00 lb
Standard 3R,4,CE,IP 34 On External Loop,IP 56 Internal Loop,Telcordia GR-487 Capable (Outdoor),UL/cUL Listed Type 12
Frequency 50/60 Hz
Wattage 1172 Watt
Family Brand Name Hoffman
Number of Phases 1 Phase
BTU Hour 4900 BTU
Power Rating 1364 W
Amperage 9.9/11.4 Amp
Max Current 11.4 A
Max Temperature 131 degrees F
Min Temperature -40 degrees F
Blade Dimensions 431.1 mm W x 256.6 in D x 725.1 mm H
Sub Brand Spectracool

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