Airrex & Flagro AHSC-42R Portable Heat Pump 3.5 Ton 42000 BTU Cooling 47000 BTU Heating R-454B Refrigerant 220V ETL Listed
Airrex AHSC-42R Portable Heat Pump — 42,000 BTU Cooling / 47,000 BTU Heating
The Airrex AHSC-42R is a high-capacity 3.5-ton portable heat pump that delivers year-round climate control from a single, mobile unit — 42,000 BTU/h of cooling and 47,000 BTU/h of heating. Built around next-generation low-GWP R-454B refrigerant and a duct-connection design, this 220-volt single-phase system is engineered for large industrial floors, warehouses, server rooms, and event spaces that need serious, relocatable heating and cooling power without permanent HVAC installation.
Key Features of the AHSC-42R
The AHSC-42R combines heating, cooling, and dehumidification into one rugged, duct-ready package — delivering large-space comfort with the flexibility of a portable system.
Dual Heating & Cooling Power
One unit covers the full season: 42,000 BTU/h of cooling and 47,000 BTU/h of heating for dependable, large-space temperature control all year round.
Eco-Friendly R-454B Refrigerant
The AHSC-42R runs on next-generation, low-GWP R-454B — a modern replacement for R-410A that meets current environmental and efficiency standards.
Duct-Ready Air Distribution
A 12" supply duct, 16" return duct, and 26" top exhaust — with an optional 20" reducer — route conditioned air precisely where large spaces need it.
Thermostatically Protected Compressor
A compressor thermostat protector, high- and low-pressure switches, a 3-minute delay timer, and fan-motor protection guard the system against overheating and short-cycling.
Mobile, Lockable Caster Design
Heavy-duty urethane wheels with 8" locking casters let the 553-lb unit be repositioned between zones and then locked firmly in place.
Digital Controls & Self-Diagnosis
An easy-to-use digital controller offers temperature setting, an OFF timer, remote control, and a built-in self-diagnosis function for simple operation and service.
Installation note: The AHSC-42R is a duct-connection heat pump — warm and exhaust air is routed through the 26" top exhaust. For best performance in enclosed or confined areas, provide a fresh-air supply and exhaust outside the conditioned zone. An optional 20" reducer and an optional plug-in condensate pump (quick-connect port) are available separately.
Ideal Applications
With 3.5 tons of dual-mode capacity, the Airrex AHSC-42R suits demanding commercial and industrial settings that need large-space heating and cooling on demand.
AHSC-42R Specifications
| Cooling Capacity | 42,000 BTU/h at 95°F / 40% RH |
|---|---|
| Heating Capacity | 47,000 BTU/h at 70°F / 50% RH |
| Heat Pump Class | 3.5-Ton |
| Refrigerant | R-454B (eco-friendly, low-GWP) |
| Power Supply | 220V~, 1 Phase, 60 Hz |
| Power Consumption (Cooling / Heating) | 4.5 kW / 5.1 kW |
| Current Draw (Cooling / Heating) | 21.0 A / 23.6 A |
| Fuse Size | 50 A |
| Operating Voltage Range | 187 – 242 V~ |
| Indoor Air Volume | 1,550 CFM (cooling / heating / dehumidification) |
| Outdoor Air Volume | 2,580 CFM |
| Indoor Fan Type | Centrifugal |
| Outdoor Fan Type | Axial |
| Indoor Max. External Static Pressure | 0.7 inchH₂O |
| Indoor Max. Equivalent Duct Length | 50 ft |
| Supply Duct | 12" |
| Return Duct | 16" |
| Top Exhaust | 26" diameter (optional 20" reducer) |
| Dehumidification Capacity | 51 gal/day nominal / 68 gal/day max |
| Condensate Pump | Optional (quick-connect port) |
| Air Filter | Aluminum + stainless-steel mesh, removable & washable |
| Operating Range (Cooling) | 65°F – 118°F (18–45°C) |
| Operating Range (Heating) | 50°F – 81°F (10–27°C) |
| Operating Range (Dehumidification) | 59°F – 118°F (15–45°C) |
| Safety Devices | High/low pressure switches, compressor thermostat protector, 3-min delay timer, fan-motor protection |
| Dimensions (W × D × H) | 29" × 57" × 51" |
| Net Weight | 553 lbs |
| Mobility | Urethane wheels with 8" locking casters |
| Certification | ETL Listed |
| Warranty | 1-year unit / 3-year compressor |
Frequently Asked Questions
What refrigerant does the Airrex AHSC-42R use?
The AHSC-42R uses R-454B, a next-generation, low-GWP refrigerant that replaces R-410A. It delivers efficient heating and cooling while meeting current environmental and efficiency standards.
Does the AHSC-42R both heat and cool?
Yes. As a portable heat pump, it provides 42,000 BTU/h of cooling and 47,000 BTU/h of heating, plus a dehumidification mode — year-round climate control from a single unit.
What power supply does the AHSC-42R require?
The unit runs on 220V single-phase, 60 Hz power. It draws 21.0 A in cooling mode and 23.6 A in heating mode, with a 50 A fuse size and an operating voltage range of 187–242 V.
What are the operating temperature ranges?
The AHSC-42R operates from 65°F to 118°F in cooling mode, 50°F to 81°F in heating mode, and 59°F to 118°F in dehumidification mode.
How is air ducted, and is exhaust required?
The unit uses a 12" supply duct and 16" return duct, with a 26" top exhaust and an optional 20" reducer. As a duct-connection heat pump, it should exhaust outside the conditioned zone, and a fresh-air supply is recommended in enclosed areas.
Is the AHSC-42R certified, and what warranty is included?
The Airrex AHSC-42R is ETL listed for safety and quality. It is covered by a 1-year warranty on the complete unit and a 3-year warranty on the compressor.
| Brand | Airrex & Flagro |
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| SKU | AHSC-42R |
| Brand | Airrex & Flagro |
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