Airrex HSC-18R Spot Cooler (R-454B)

Airrex spot coolers operate in air temperatures from 65°F to 113°F. These air conditioners utilize eco-friendly R-454B refrigerant. Airrex spot cooler air conditioners may require a fresh air supply for proper operation. Includes removable, washable air filters for easy maintenance. Thermostatically protected compressor includes high and low-pressure warnings. Moves easily on swivel casters (2 locking). This air conditioner has 16,800 BTU cooling feature with two 5″ diameter front cold air discharge nozzles and has a 12″ diameter top warm air discharge. Optional Warm Air Duct includes 8’L ducting and a 2 x 2 ceiling flange for warm air exhausting. ETL listed. Optional Condensate Pump that plugs directly into the portable air conditioner. 1 Year Warranty. 3 Year LG compressor warranty. All of our portable air conditioners and heat pumps come standard with a dehumidification mode.

The Airrex HSC-18R provides 16,800 BTU/h of cooling power for areas up to 600 sq. ft.. Using eco-friendly
R-454B refrigerant and durable construction, this portable spot cooler delivers reliable comfort, safety, and mobility
for industrial, commercial, and residential settings.

Category: Portable Air-Cooled Spot Coolers

Specifications of the Airrex HSC-18R

Frequently Asked Questions

• What is a portable spot cooler?
  A portable spot cooler is a self-contained air conditioner designed to provide targeted cooling to a specific
  area, workstation, or piece of equipment without the need for permanent installation.
• What size area can the Airrex HSC-18R cool?
  The Airrex HSC-18R delivers approximately 18,000 BTU of cooling and is designed for spot cooling applications
  such as server rooms, production areas, medical spaces, and heat-generating workstations—not whole-building cooling.
• Is the Airrex HSC-18R for commercial or residential use?
  The HSC-18R is a commercial-grade portable spot cooler built for professional environments including healthcare,
  industrial facilities, warehouses, offices, and data rooms.
• Does the Airrex HSC-18R require venting?
  Yes. Warm exhaust air must be ducted out of the conditioned space, typically through a ceiling tile, window,
  or wall opening using flexible exhaust ducting.
• Does this unit require fresh air?
  In many installations, Airrex spot coolers perform best when supplied with fresh or conditioned air,
  particularly in tightly sealed or high-heat environments.
• What refrigerant does the Airrex HSC-18R use?
  The HSC-18R uses R-454B refrigerant, a low-GWP alternative to R-410A that meets current environmental
  regulations while maintaining reliable cooling performance.
• What power does the Airrex HSC-18R require?
  The unit operates on 115V power and plugs into a standard electrical outlet, allowing for fast setup
  without specialized electrical work.
• Is a condensate pump required?
  A condensate pump is optional. It is recommended when gravity drainage is not possible or when condensate
  must be pumped vertically or over longer distances.
• Does the Airrex HSC-18R include dehumidification?
  Yes. The HSC-18R includes a built-in dehumidification mode for managing moisture while cooling.
• Where is the Airrex HSC-18R commonly used?
  Common applications include manufacturing areas, server rooms, healthcare facilities, warehouses,
  event spaces, and emergency or supplemental cooling scenarios.