Trane M5MHWUN24B1N0A Mini-split Indoor Wall Unit 24000 Btu/h Residential Ductless Air Handler

Product Description

The Trane M5MHWUN24B1N0A is a ductless mini-split indoor wall-mount air handler rated at 24,000 BTU/h. It is designed to work as the indoor evaporator component of a split-system heat pump or air conditioning system, circulating conditioned air directly into a defined zone without ductwork. The unit mounts to a wall-mounted plate, connects to a matched outdoor condensing unit via refrigerant and electrical lines, and evacuates condensate through a gravity-drain drainage pipe. HVAC technicians install this unit as part of a complete ductless system in residential and light-commercial applications where zoned comfort control is required.

This indoor air handler is suited for single-zone residential installations such as additions, bonus rooms, garages, or other spaces not served by a central duct system. It is also used in light-commercial settings where zoned, independent temperature control is needed. The unit is part of the Trane M5MHWUN series, which covers indoor wall-mount handlers in the 9,000 to 36,000 BTU/h capacity range. Installation is performed by a licensed HVAC technician who pairs this unit with a compatible Trane outdoor unit to complete the refrigerant circuit.

Key Features

• 24,000 BTU/h capacity for effective single-zone cooling and heating
• Wall-mount design with included mounting plate for clean, low-profile installation
• Integrated air filter accessible from the front panel for routine maintenance
• Air deflector and adjustable flap for directional airflow control
• Drainage pipe outlet for condensate removal without a secondary drain pan
• Valve protective cover shields refrigerant connections at the indoor unit
• Emergency button provides manual operation if remote or control signal is lost

Compatibility

Designed as an OEM indoor wall-mount air handler for use within the Trane M5MHWUN series ductless mini-split system. Pairing with a compatible Trane outdoor condensing unit is required to complete the refrigerant system. Consult the Trane installer guide (88-M5MHWUN-1A-EN) and confirmed system-matching documentation before selecting an outdoor unit.

Installation Notes

Installation must be performed by a licensed HVAC technician in accordance with applicable local codes and the manufacturer installer guide. Power to the system must be disconnected at the disconnect box before any wiring, refrigerant line, or mounting work is performed. Refrigerant handling requires EPA Section 608 certification. The mounting plate must be secured to a structurally sound wall surface, plumbed level, and able to support the weight of the indoor unit before the unit is hung.

Technical Specifications

• Capacity: 24,000 BTU/h
• System Type: Ductless Mini-Split Indoor Wall-Mount Air Handler
• Series: M5MHWUN
• Application: Residential and Light Commercial Single-Zone

Standard Information

• Brand: Trane
• Manufacturer Part Number: M5MHWUN24B1N0A