Goodman AMST42CU1300 R-32 MULTI-POSITION 9 SPEED ECM MOTOR ECB BASED AIR HANDLER WITH INTERNAL TXV 3.5 TON

Goodman AMST42CU1300 R-32 Multi-Position Air Handler (9-Speed ECM Motor w/ Internal TXV)

The Goodman AMST42CU1300 is a high-efficiency multi-position air handler optimized specifically for Next-Gen R-32 refrigerant systems. Driven by a direct-drive 9-speed ECM blower motor and equipped with a factory-installed 7mm AlumaFin7™ all-aluminum evaporator coil and internal TXV, this unit provides quiet, energy-efficient airflow across vertical or horizontal duct configurations.

Key Specifications

• Brand: Goodman
• Model / Part Number: AMST42CU1300
• Refrigerant Compatibility: R-32 (Includes Factory-Installed A2L Mitigation Leak Detection Sensor)
• Blower Motor: Direct-Drive, Resilient-Mount 9-Speed ECM Motor
• Evaporator Coil: Factory-Installed 7mm AlumaFin7™ All-Aluminum Tube/Aluminum Fin Coil w/ Coated Fin Stock
• Metering Device: Factory-Installed Internal Thermal Expansion Valve (TXV) for Cooling & Heat Pump Applications
• Configuration: Multi-Position (Vertical or Horizontal Capabilities, Suitable for Free-Return/Non-Ducted Installations)
• Cabinet Construction: Rigid SmartFrame™ Galvanized Steel w/ Leather Grain-Embossed Finish
• Cabinet Air Leakage: Less Than 4% at 0.5" H2O (Tested per ASHRAE Standard 193)
• Electrical Disconnect: Factory-Installed Pull-Type Disconnect
• Drain Pan: DecaBDE-Free High-Temperature Thermoplastic Drain Pan w/ Primary & Secondary Drain Connections
• Dimensions / Access: 21" Cabinet Depth for Easier Attic Access
• Certifications: AHRI Certified & ETL Listed
• Warranty: 5-Year Parts Warranty

Product Features & Fitment

Engineered for dependable year-round performance, the Goodman AMST42CU1300 features an all-aluminum tube and fin evaporator coil with high-performance coated fin stock. Built-in safety and efficiency components include an internal factory-installed TXV metering device and an R-32 leak detection sensor designed for A2L mitigation compliance.

The unit's rigid SmartFrame™ cabinet utilizes screw-less sides and back to minimize exterior sweating in humid environments, while internal glue-less foil-faced insulation further limits casing condensation. Service and installation are streamlined thanks to a coil mounting track for quick repositioning, tool-less filter access, easy service panels, and compatibility with 3 kW to 25 kW electric heater kits (available without heat or with sequence-controlled nickel-chromium elements of 5, 6, 8, or 10 kW).