Trane A5AHC004A1B30A Convertible Air Handler 3 Ton R-454B Multiposition Ecm

Product Description

The Trane A5AHC004A1B30A is a convertible, multiposition air handler designed for residential split-system HVAC applications. Rated at 18,000 to 24,000 BTU/h (1.5 to 2 tons at minimum, up to 3 tons at full capacity), this unit uses R-454B refrigerant and includes a factory-installed thermal expansion valve (TXV). The cabinet is constructed from painted galvanized steel with captured foil-face insulation rated at R-4.2, and air leakage is held to 2 percent or less. A constant-torque ECM blower motor provides multi-speed airflow control. The unit ships ready for upflow, downflow, horizontal left, or horizontal right installation. Licensed HVAC technicians handle installation and commissioning.

The A5AHC004A1B30A is intended for residential split-system installations paired with a compatible outdoor condensing unit or heat pump rated for R-454B refrigerant. Its four-way convertible design makes it suitable for a range of equipment room and attic configurations. The unit accepts optional electric heater kits (sold separately) with polarized plug connections, making it appropriate for all-electric or dual-fuel setups. A horizontal drain pan supports installations in any orientation. Low-voltage pigtail connections and fused 24-volt system control simplify wiring at the air handler.

Key Features

• Four-way multiposition design: upflow, downflow, horizontal left, and horizontal right
• R-454B A2L-compatible refrigerant circuit with factory-installed TXV
• All-aluminum plate-fin evaporator coil for corrosion resistance
• Constant-torque ECM blower motor with multiple speed taps
• Painted galvanized steel cabinet with R-4.2 foil-face insulation and 2 percent or less air leakage
• Fused 24-volt control board with low-voltage pigtail connections
• Optional electric heater accessory kits with polarized plug connections (sold separately)

Compatibility

Designed for use with outdoor condensing units and heat pumps compatible with R-454B refrigerant. Compatible heater accessories include BAYHTR1504BRK, BAYHTR1504LUG, BAYHTR1505BRK, BAYHTR1505LUG, BAYHTR1508BRK, BAYHTR1508LUG, BAYHTR1510BRK, BAYHTR1510LUG, BAYHTR3510LUG, BAYHTR1517BRK, BAYHTR3517LUG, BAYHTR1523BRK, and BAYHTR1525BRK. Confirm outdoor unit refrigerant compatibility before installation.

Installation Notes

Installation must be performed by a licensed HVAC technician in accordance with local mechanical codes and the manufacturer installation, operation, and maintenance documentation. De-energize all electrical power to the system before beginning any work on the air handler, blower, or control wiring. R-454B is an A2L mildly flammable refrigerant — follow applicable refrigerant handling regulations and use equipment rated for A2L refrigerants. Verify that the selected outdoor unit is rated for R-454B before connecting the refrigerant circuit.

Technical Specifications

• Cooling Capacity: 18,000 to 24,000 BTU/h
• Nominal Tonnage: 3 tons
• Refrigerant Type: R-454B
• Refrigerant Circuit: Thermal expansion valve (TXV)
• Blower Motor Type: Constant-torque ECM
• Voltage: 208/230 volts, 1-phase, 60 Hz
• Control Voltage: 24 volts (fused)
• Coil Material: All-aluminum plate-fin
• Cabinet Material: Painted galvanized steel
• Insulation R-Value: R-4.2 foil-face
• Air Leakage: 2 percent or less
• Cabinet Width: 23.5 inches
• Installation Positions: Upflow, downflow, horizontal left, horizontal right
• Warranty: 5 years

Standard Information

• Brand: Trane
• Manufacturer Part Number: A5AHC004A1B30A