Firstco 81348AV-M Uncased Evaporator Coil - USM348AV 4-Ton R-410A

The First Company 81348AV-M is the USM348AV uncased evaporator coil from First Co.'s USM Series — a high-efficiency, vertical/horizontal coil engineered for residential and light commercial HVAC applications. Designed for compatibility with R-410A refrigerant systems, this 4-ton coil delivers reliable cooling performance in both cooling-only and heat pump configurations.

Key Features:

• 4-Ton Nominal Capacity — rated for 3.5–4 ton applications
• R-410A Refrigerant — compatible with modern environmentally preferred refrigerant
• Up to 14 SEER — for use with up to 14 SEER condensing units
• Copper Tube / Aluminum Fin Construction — high-efficiency heat transfer design
• Piston-Type Metering Device — factory installed for maximum installation flexibility; optional TXV upgrade kits available
• Dual-Circuit Design — circuited for cooling-only or heat pump operation
• Sweat Refrigerant Connections — 1/2-inch liquid line and 7/8-inch suction line
• 3/4-inch MPT Condensate Drain Connections — primary and secondary drain ports
• Factory Equalizer Connection — pre-installed on coil header to simplify field installation of expansion valve kits
• Corrosion-Resistant Drain Pan — coated for long-lasting durability
• Vertical or Horizontal Installation — flexible orientation to suit various air handler configurations

Note: Horizontal drain pans are optional and must be ordered separately. This coil can be field-installed into an air handler with sufficient space. Manufacturer part number: 81348AV-M.