AirRex 3.5 Ton 42,000 BTU Portable Heat Pump | 240V - R454B

High-Capacity 42,000 BTU Cooling & 47,000 BTU Heating Portable Heat Pump for Commercial & Industrial Applications with R-454B Refrigerant

The Airrex AHSC-42R is a 42,000 BTU cooling and 47,000 BTU heating portable heat pump designed to provide supplemental heating, cooling, and dehumidification for commercial and industrial environments. Combining 3.5-ton cooling capacity with reversible heat pump technology, dual-duct air distribution, and R-454B refrigerant, this self-contained climate control system provides year-round temperature management while offering flexible deployment for indoor and outdoor applications. With a rated coverage area of up to 1,400 square feet under suitable conditions, the AHSC-42R is designed for demanding workspaces that require high-capacity portable HVAC performance.

Key Benefits

• High-Capacity Heating & Cooling Performance – Provides 42,000 BTU of cooling and 47,000 BTU of heating capacity for supplemental climate control in large commercial and industrial work areas.
• Reversible Heat Pump Technology – Delivers heating and cooling from one integrated system, supporting year-round temperature management without separate seasonal equipment.
• Heavy-Duty Portable Construction – Integrated mobility features and locking casters support positioning and relocation between suitable work areas.
• Dual-Duct Air Distribution – Separate 12-inch supply and 16-inch return connections support targeted conditioning and flexible installation arrangements.
• Indoor & Outdoor Deployment – Supports different installation configurations when ducting, ventilation, clearances, and operating conditions meet manufacturer requirements.
• Integrated Dehumidification – Removes excess moisture from the air, with published maximum moisture removal of up to 59 gallons per day under specified test conditions.
• Digital Controls & Electrical Connection – Digital operating controls and a 220V single-phase electrical connection support commercial climate-control applications.
• Service & Maintenance – Removable, washable air filters and built-in compressor protection features simplify routine maintenance and support equipment protection.

47,000 BTU Heating Performance for Commercial & Industrial Spaces

The Airrex AHSC-42R provides 47,000 BTU/h (13.8 kW) of heating capacity to help maintain comfortable temperatures in suitable commercial and industrial environments. Its specified heating operating range is 50°F to 81°F, subject to the manufacturer's stated ambient temperature and humidity conditions. Reversible heat pump operation transfers heat into the conditioned space, providing supplemental heating for industrial facilities, equipment areas, temporary workspaces, and other applications requiring flexible temperature control. Actual heating performance depends on ambient conditions, installation configuration, and the thermal load of the conditioned space.

42,000 BTU Cooling Performance for Large Commercial Areas

The Airrex AHSC-42R provides 42,000 BTU/h (12.3 kW) of cooling capacity, equivalent to approximately 3.5 tons, for high-capacity supplemental cooling. Its specified cooling operating range is 65°F to 118°F. The unit is rated for spaces up to approximately 1,400 square feet under suitable conditions, although actual coverage varies with insulation, ceiling height, equipment heat loads, outdoor temperatures, ventilation, and duct configuration. The dual-duct arrangement supports conditioned-air delivery and return-air circulation while allowing flexible equipment placement. Proper installation and duct routing are essential for maintaining the intended airflow and cooling performance.

Reversible Heat Pump Technology with R-454B Refrigerant

The Airrex AHSC-42R uses reversible heat pump technology to provide both heating and cooling from a single portable system. In cooling mode, the refrigeration cycle removes heat from the conditioned space. In heating mode, the cycle reverses to deliver warm air. The system also provides a dedicated dehumidification mode to help remove excess moisture. The AHSC-42R uses R-454B refrigerant, a lower-global-warming-potential alternative to R-410A. This integrated approach provides year-round climate control without requiring separate portable heating and cooling equipment. Refrigerant servicing must be performed by qualified personnel using procedures and equipment appropriate for R-454B.

Ducted Airflow & Distribution for Targeted Conditioning

The Airrex AHSC-42R features separate duct connections for conditioned-air delivery and return-air circulation. The system incorporates one 12-inch supply connection and one 16-inch return connection, together with a top exhaust outlet for condenser air. Published specifications identify an outdoor fan airflow of approximately 2,580 CFM. The ducted configuration allows conditioned air to be routed toward the target area and supports flexible placement of the equipment. Optional flexible ducting and a top exhaust reducer are available for compatible installation configurations. Duct length, routing, clearances, and any required fresh-air supply must follow the manufacturer's installation requirements to maintain appropriate airflow and operating performance.

Portable Design for Flexible Installation & Deployment

The Airrex AHSC-42R features a heavy-duty cabinet designed for portable commercial and industrial applications. Published product specifications list approximate dimensions of 29.1 inches wide by 57.1 inches deep by 50.7 inches high, with a net weight of approximately 553 pounds. Mobility features support positioning on suitable surfaces, while separate duct connections allow the unit to be configured for indoor or outdoor applications in accordance with manufacturer requirements. The unit requires a 220V, 60Hz, single-phase electrical supply. Because of its substantial weight, relocation should be performed using suitable handling equipment and safe movement procedures. Verify the actual equipment nameplate, dimensions, and installation documentation before planning access, transportation, and clearances.

Integrated Dehumidification for Moisture Control

The Airrex AHSC-42R incorporates a dedicated dehumidification mode to help manage excess moisture in commercial and industrial environments. Published specifications identify maximum moisture removal of up to 59 gallons per day and an AHAM-rated moisture removal capacity of approximately 40.6 gallons per day. Maximum moisture removal is based on specified test conditions and should not be interpreted as expected daily output in every application. The specified dehumidification operating range is 59°F to 118°F under the manufacturer's stated ambient conditions. An optional external condensate pump is available for compatible installations requiring continuous condensate removal. Drainage arrangements must be configured according to the manufacturer's instructions.

Digital Controls, Comfort Settings & Electrical Connection

The Airrex AHSC-42R incorporates operating controls for selecting the desired heating, cooling, and dehumidification functions. The system includes built-in safety devices such as high- and low-pressure switches, compressor thermostat protection, fan motor protection, and a three-minute compressor delay timer. The unit operates on a 220V, 60Hz, single-phase electrical supply. Published specifications identify a current draw of 21 amps during cooling and 23.6 amps during heating, with power consumption of approximately 4.5 kW during cooling and 5.1 kW during heating. The product is designed for a hardwired or terminal-type electrical connection as applicable to the supplied configuration; a standard plug should not be assumed. Verify the exact model nameplate, manufacturer wiring diagram, and installation manual before selecting circuit conductors, disconnect equipment, and overcurrent protection. Electrical installation must comply with applicable codes and be completed by qualified personnel.

Commercial & Industrial Applications for Supplemental HVAC

The Airrex AHSC-42R is designed for commercial and industrial environments requiring high-capacity portable heating, cooling, and dehumidification. Potential applications include warehouses, manufacturing facilities, workshops, maintenance areas, equipment rooms, server rooms, temporary workspaces, industrial production areas, and event spaces. Its 42,000 BTU cooling capacity, 47,000 BTU heating capacity, and duct-connected configuration make it suitable for applications where permanent HVAC installation is impractical or temporary conditioning is required. Proper application sizing, electrical capacity, duct routing, ventilation, ambient operating conditions, and condensate management should be evaluated before deployment.

Mobility & Flexible Deployment Between Work Areas

The Airrex AHSC-42R is designed for relocation between suitable commercial and industrial work areas as temperature-control requirements change. Its heavy-duty construction supports demanding applications, while the duct connections allow conditioned air to be directed toward the intended space. Given the unit's approximate 553-pound weight, relocation requires appropriate handling equipment and safe movement procedures. Secure the unit in its operating position and follow the manufacturer's instructions for shutdown, duct disconnection, transportation, and repositioning.

Service & Maintenance for Reliable Operation

The Airrex AHSC-42R includes removable, washable aluminum and stainless-steel mesh air filters to simplify routine cleaning and help maintain airflow. Regular filter inspection and cleaning are important for maintaining system performance. Built-in protection features include high- and low-pressure switches, compressor thermostat protection, a three-minute delay timer, and fan motor protection. Condensate drainage components should be inspected regularly, and any optional external condensate pump should be maintained according to its manufacturer's instructions. Refrigeration-system servicing, electrical repairs, and internal component maintenance should be performed by qualified service personnel in accordance with the applicable installation and operating manual.

Warranty

The Airrex AHSC-42R is listed with a one-year unit warranty and a three-year compressor warranty. Warranty coverage, exclusions, service requirements, and other applicable conditions are subject to the manufacturer's written warranty documentation. Confirm the warranty terms applicable to the purchased model and installation before operation.

Recommended Accessories

• 12-Inch Flexible Supply Duct – Optional flexible ducting for conditioned-air delivery; verify compatible length and connection requirements for the AHSC-42R.
• 16-Inch Flexible Return Duct – Optional flexible ducting for return-air circulation; confirm compatible duct length and installation requirements.
• Top Exhaust Reducer – Optional accessory for compatible exhaust configurations; verify the required connection size and approved installation arrangement before ordering.
• External Condensate Pump – Optional accessory for compatible installations requiring automatic condensate removal.
• Replacement Washable Air Filters – Compatible replacement filters for routine maintenance when required.

High-Capacity Year-Round Climate Control with the Airrex AHSC-42R

Experience flexible commercial and industrial climate control with the Airrex AHSC-42R portable heat pump. Combining 42,000 BTU of cooling capacity and 47,000 BTU of heating capacity with reversible heat pump technology, R-454B refrigerant, duct-connected air distribution, and integrated dehumidification, this heavy-duty portable system provides year-round temperature management for large work areas requiring supplemental HVAC performance.

No Return Policy

All AirRex commercial unit sales are final and are non-refundable.