Trane M5MHW1936A1N0A Ductless High-wall Indoor Air Handler 36000 Btu/h R-454B 19 Seer

Product Description

The Trane M5MHW1936A1N0A is a 36,000 BTU/h high-wall ductless indoor air handler designed for single-phase mini-split systems using R-454B refrigerant. Part of the Trane RunTru 19 Series, it operates on 208-230 volts and is rated at 19 SEER, placing it in the high-efficiency tier. The unit mounts on an interior wall and delivers conditioned air directly to the space without ductwork. It is installed by licensed HVAC technicians as the indoor component of a split ductless system, paired with a compatible R-454B outdoor condenser unit.

This air handler is suited for residential and light-commercial applications where ductless climate control is required. Typical installations include room additions, garage conversions, multi-zone residential projects, and spaces where running ductwork is not practical. The unit is part of the RunTru 19 Series lineup and requires a matched R-454B outdoor condensing unit to form a complete system. It operates on a standard single-phase 208-230 volt circuit.

Key Features

• 36,000 BTU/h cooling capacity for larger single-zone spaces
• High-efficiency 19 SEER rating reduces operating energy draw
• R-454B refrigerant — lower global warming potential than legacy refrigerants
• Single-phase 208-230 volt operation compatible with standard residential electrical service
• High-wall mount design keeps floor space clear and delivers direct room airflow
• Part of the Trane RunTru 19 Series ductless product family

Compatibility

Designed for use as the indoor air handler component in a Trane RunTru 19 Series ductless mini-split system. Requires a compatible R-454B single-phase outdoor condensing unit. No specific compatible outdoor unit model numbers were provided in the available product data.

Installation Notes

Installation must be performed by a licensed HVAC technician certified to handle R-454B refrigerant under applicable EPA Section 608 regulations. Shut off all electrical power to the circuit before mounting, wiring, or making refrigerant line connections. Follow the manufacturer installation manual for line set sizing, maximum run lengths, and mounting height requirements. Electrical connections must comply with NEC requirements for the rated voltage and amperage of the equipment.

Technical Specifications

• Cooling Capacity: 36,000 BTU/h
• SEER Rating: 19
• Efficiency Tier: High Efficiency
• Refrigerant Type: R-454B
• Voltage: 208-230 volts
• Phase: 1
• Series: 19 Series
• Product Type: Ductless High-Wall Indoor Air Handler

Standard Information

• Brand: Trane
• Manufacturer Part Number: M5MHW1936A1N0A