You can connect up to five indoor units to just one outdoor unit from Trane to provide exactly the degree of comfort you require. Because there are no ducts, indoor units can be installed in a room at the front of your home while connected to an outdoor unit located inconspicuously at the rear or side. Space-saving low profile indoor units can be wall, floor or ceiling mounted, providing great flexibility in interior design or space utilization and a customized comfort solution. Multi-zone systems allow the most flexibility when customizing a comfort system for your home and can provide the benefits of a zoning system without the costly additions of zoning hardware. Up to five indoor units with separate temparature zones can be connected to one outdoor unit, improving comfort and saving energy. Multi-zone heat pumps are an affordable and energy efficient way to control the climate of individual rooms. No energy loss due to air leakage in ductwork from heating or cooling the entire duct system before the air reaches desired rooms. No expensive ductwork required. The multi-zone system adjusts to your needs, providing constant comfort and energy savings.
Provide the level of comfort you want in each room. Depending on your indoor model, you can connect two to five indoor units to just one of these outdoor models.
The Multi-Zone Heat Pump – 4TXM21 has Seasonal Energy Efficiency Ratings (SEER2) ranging up to 21.00, making the ductless system remarkably efficient and environmentally friendly.
With no ductwork to install, it’s easy to add a ductless system to practically any space in your home. This is an economical solution for homes without existing ductwork or if adding extensive ductwork is too expensive.
With ductless systems, you don’t have to worry about energy loss associated with worn down or poorly maintained ducts. That, combined with increased HSPF2 and SEER2 ratings on Trane systems, could help you save money on your monthly energy bills.
New, strong hot-dip galvanized steel grill prevents damage and has no renegative effect on airflow. Automatic defrosting improves the ductless heat pump’s efficiency and helps you save power. Special anti-corrosion treatment increases durability and ensures continued efficiency. The brushless compressor provides better balance, lower power consumption and higher efficiency. The compressor stops or delays operation if conflicts arise.
| Model | Height (IN.) | Width (IN.) | Depth (IN.) |
| 4TXM2118A | 21.7 | 32.4 | 13.9 |
| 4TXM2124A | 26.0 | 38.0 | 15.8 |
| 4TXM2130A | 32.5 | 40.2 | 16.8 |
| 4TXM2136A | 32.5 | 40.2 | 16.8 |
| 4TXM2142A | 32.5 | 40.2 | 16.8 |
The multi-zone systems can operate with a combination ratio of up to 150%. This means that the total combined nominal cooling capacity of the connected indoor units can be up to 1.5 times the nominal cooling capacity of the outdoor unit. Note: When the total capacity of the indoor units exceeds the total capacity of the outdoor unit, the system will be restricted by the capacity of the outdoor unit. All indoor units would not be able to operate at full capacity at the same time. If the indoor units’ combined capacity is less than 100% of the outdoor unit’s capacity, the system capacity is limited to the indoor unit(s) combined capacity.
NOTES:
• The refrigerant charge mentioned in the technical data does not include additional charge required for
the indoor unit and the refrigerant pipe.
• The amount of the additional refrigerant charge depends on the length of the liquid refrigerant pipe
installed.
• Record the additional refrigerant charge for future maintenance.
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