Trane M5THS1909A11NA Ductless Heat Pump Condenser 9000 Btu 19 SEER2 R-454B

Product Description

The Trane M5THS1909A11NA is a 9,000 BTU ductless mini-split heat pump condenser (outdoor unit) rated at 19 SEER2 and designed to operate on R-454B refrigerant. This unit delivers both heating and cooling from a single outdoor cabinet, making it a practical choice for residential single-zone applications where duct runs are impractical or undesirable. It operates in heating mode down to -13 degrees F ambient, giving it solid cold-climate capability. The liquid line connection is 1/4 inch. Licensed HVAC technicians handle installation and refrigerant work on this unit.

The M5THS1909A11NA is suited for residential single-zone ductless installations such as additions, converted spaces, sunrooms, garages, and other areas without existing ductwork. It pairs with a compatible Trane RunTru indoor air handler or wall-mounted evaporator to form a complete split system. The unit is part of the Trane RunTru 19 Series lineup, targeting applications where a high-efficiency, low-GWP refrigerant system is required to meet current regulatory and efficiency standards.

Key Features

• 9,000 BTU capacity for single-zone residential ductless applications
• 19 SEER2 efficiency rating for reduced operating costs
• R-454B refrigerant — lower global warming potential alternative to R-410A
• Heating operation rated down to -13 degrees F outdoor ambient temperature
• 1/4 inch liquid line connection for standard mini-split piping
• Single-phase electrical supply

Compatibility

Designed for use as the outdoor condenser unit in a Trane RunTru 19 Series single-zone ductless mini-split system using R-454B refrigerant. Pair with a compatible Trane RunTru indoor unit. Consult Trane product matching documentation to confirm indoor unit compatibility before installation.

Installation Notes

Installation must be performed by an EPA Section 608 certified HVAC technician licensed to handle refrigerants, including R-454B. Power down and lock out all electrical circuits before making any electrical or refrigerant connections. Follow the manufacturer installation manual for line set sizing, flare specifications, and evacuation procedures. Local mechanical codes and the current edition of applicable standards govern refrigerant piping, electrical connections, and equipment placement and clearances.

Technical Specifications

• Cooling Capacity: 9,000 BTU/h
• SEER2 Rating: 19
• Refrigerant Type: R-454B
• Phases: 1
• Liquid Line Size: 1/4 inch
• Heating Operating Temperature Range: -13 to 75 degrees F
• Series: 19 Series

Standard Information

• Brand: Trane
• Manufacturer Part Number: M5THS1909A11NA