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When using a mini split sizing calculator for rooms below a conditioned space, apply an additional .7 factor to your final Btu outcome.
For example, if your Btu requirement via this calculator is 18,000 Btu's: 18,000 Btu's x .7 factor = 12,600 Btu's required. When in doubt, it is okay to go up a size or two. Unlike standard non-variable systems, The mini split inverter technology allows the system to adjust to the actual room requirements in both heating and cooling.
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This system includes one Daikin AURORA MXT multi-zone inverter-driven heat pump condenser rated for up to 36,000 BTUs and supports up to 2 compatible indoor units. Indoor units must be selected from Daikin-approved combinations for the included outdoor condenser. Approved indoor unit combinations may exceed the condenser's nominal BTU rating.
Model Number
4MXTH36AVJU9
Dimensions
43-5/16" W x 18-1/8" D x 34-1/4" H
Documents
Warranty
Parts: 12 years
AHRI Number
Mixed: 218043342
Ducted: 218043341
Non-Ducted: 217747241
SEER2
Mixed: 18
Ducted: 16
Non-Ducted: 20
The Daikin 4MXTH36AVJU9 AURORA Series heat pump outdoor unit is engineered for superior multi-zone comfort in cold climate applications. Delivering 36,000 BTU capacity and supporting up to four indoor units, this outdoor condenser provides reliable heating performance even during harsh winter conditions.
Equipped with a factory-installed drain pan heater and advanced inverter compressor technology, the 4MXTH36AVJU9 is designed to help prevent ice buildup while maintaining efficient operation at low outdoor temperatures. This system is ideal for homeowners seeking flexible zoned comfort with dependable year-round efficiency.
Compatible Indoor Unit Models: FTXV09AVJU9, FTXV12AVJU9, FTXV15AVJU9, FTXV18AVJU9, FTXV24AVJU9
Who installs the AC unit after I purchase it?
ACDirect does not yet provide installation services directly. However, most of our customers successfully arrange installation through local licensed HVAC contractors. These systems are designed for professional installation and typically include the components your installer will need.
Here’s how it works:
Note:
Please be aware if you choose to install HVAC equipment yourself and don’t possess proper HVAC licensing, you will void the manufacturer’s factory warranty. If you are capable of a factory-compliant installation yourself, you will need a licensed HVAC contractor to sign off on your work, fully confirming factory-compliant workmanship.
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