Trane M5MHWUN18B1N0A Wall Unit Heat Pump 1.5 Ton

Product Description

The Trane M5MHWUN18B1N0A is a wall-mounted heat pump unit rated at a nominal 1.5-ton (18,000 BTU/h) capacity. It provides both heating and cooling from a single self-contained assembly, making it a compact solution for applications where a traditional split system is impractical. The unit is designed for installation by a licensed HVAC technician and is suited to spaces requiring direct-wall or through-wall refrigerant circuit integration. Its packaged configuration simplifies refrigerant line handling compared to conventional split systems.

This unit is typically applied in residential and light-commercial settings where space constraints or building construction favor a wall-mount installation. Common scenarios include mobile or manufactured housing, additions, and auxiliary comfort zones. The 1.5-ton nominal capacity fits smaller conditioned spaces, and the heat pump design eliminates the need for a separate heating source in moderate climates, reducing overall system complexity.

Key Features

• Nominal 1.5-ton (18,000 BTU/h) heating and cooling capacity in a single packaged assembly
• Heat pump operation provides both heating and cooling without a separate furnace or strip heat in moderate climates
• Wall-mounted packaged design reduces refrigerant line complexity vs. split systems
• Trane OEM unit built to manufacturer quality and dimensional standards

Compatibility

Designed as an OEM-style replacement or direct-install packaged wall heat pump unit for applications requiring a nominal 1.5-ton through-wall or wall-mounted heat pump configuration. Consult Trane product documentation and the unit nameplate to confirm fitment with the specific installation.

Installation Notes

Installation must be performed by a licensed HVAC technician in accordance with local mechanical codes and manufacturer guidelines. Power must be fully disconnected at the breaker before any service or installation work begins. Refrigerant handling requires EPA Section 608 certification. Verify that wall opening dimensions, electrical supply voltage, and circuit ampacity match the unit nameplate before proceeding.

Technical Specifications

• Nominal Cooling Capacity: 18,000 BTU/h (1.5 tons)
• System Type: Packaged Wall Heat Pump
• Brand: Trane

Standard Information

• Brand: Trane
• Manufacturer Part Number: M5MHWUN18B1N0A