Trane M3MHW2212A9N0A Hi-wall Fan Coil 12000 Btu/h 115 Volt Single Zone Ductless

Product Description

The Trane M3MHW2212A9N0A is a 12,000 BTU/h hi-wall fan coil unit designed for single-zone ductless mini-split heat pump systems. Operating on 115-volt, 60 Hz, single-phase power, this indoor air handler pairs with a compatible outdoor condensing unit to deliver both heating and cooling in residential and light-commercial applications. With a system SEER rating of 22 and an EER of 9, it offers strong efficiency performance for a 115-volt ductless platform. Rated at 12.5 amps, it is designed for quieter operation and straightforward refrigerant line connection. Licensed HVAC technicians handle installation and commissioning of this unit.

This fan coil is intended for single-zone ductless installations where a dedicated wall-mounted indoor unit is required. It is part of the RunTru 115-volt single-zone ductless lineup and is confirmed to be used in the RunTru CXV 1-ton ductless mini-split heat pump system. The unit is suitable for installations across all U.S. regions at 18 SEER and carries a quiet operation rating in the 28-36 dB range. Typical applications include residential bedrooms, additions, garages, and small commercial spaces where a traditional ducted system is not practical or cost-effective.

Key Features

• 12,000 BTU/h cooling and heating capacity for single-zone applications
• 115-volt, 60 Hz, single-phase operation — compatible with standard residential electrical service
• System SEER rating of 22 for high-efficiency performance
• Quiet operation rated at 28-36 dB
• Liquid line connection: 1/4 inch; suction line connection: 3/8 inch
• Suitable for installation in all U.S. regions

Compatibility

Confirmed for use in the RunTru CXV 1-ton ductless mini-split heat pump system. Compatible outdoor unit pairing for this model is M3THS2212A91NA per supplier documentation. Designed for single-zone ductless configurations within the RunTru 115-volt ductless platform.

Installation Notes

Installation must be performed by a licensed HVAC technician in accordance with local mechanical codes and manufacturer guidelines. Power must be disconnected at the breaker before any wiring or refrigerant line connections are made. Refrigerant line sets must be leak-checked and evacuated to the manufacturer-specified vacuum level before charging. The indoor unit should be mounted on a structurally sound wall surface at the height recommended in the installation manual to ensure proper airflow and condensate drainage.

Technical Specifications

• Cooling Capacity: 12,000 BTU/h
• Heating Capacity: 12,000 BTU/h
• SEER: 22
• EER: 9
• Amperage: 12.5 amps
• Voltage: 115 volts
• Phase: Single-phase
• Frequency: 60 Hz
• Liquid Line Connection: 1/4 inch
• Suction Line Connection: 3/8 inch
• Sound Level: 28-36 dB

Standard Information

• Brand: Trane
• Manufacturer Part Number: M3MHW2212A9N0A