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Midea 18K-Btu 18.5 SEER2 Central AHU Mini Split Heat Pump (-13Β°F) E-Star: 12.2 EER/9.8 HSPF (R454B)

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In Stock D5CSRAH18AAK/D5FSAAH18XBK

Introducing the 18000 BTU Midea Ductless Mini Split, your go-to solution for an Eco-Friendly Cooling System! This Ducted Heat Pump System is designed to keep your home comfortable year-round, boasting an impressive 18.5 SEER2 rating and energy-efficient performance with a 12.2 EER and 9.8 HSPF. The Inverter Mini Split System features a versatile AHU-Ducted Indoor Unit with remote control, allowing for easy adjustments from anywhere in your space. With modes for cooling, heating, drying, and fan operation, you can customize your comfort. Plus, the unit's leak detection system and quiet operation ensure peace of mind and tranquility. Enjoy economical operation with the ability to heat or cool individual or multi-room setups. Installation is a breeze with its multi-poise design, making it perfect for any layout. Upgrade your home with the Midea Heat Pump and experience energy-efficient comfort like never before!

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Description

Midea 18K BTU Central AHU Mini Split Heat Pump
Midea
18K BTU Central AHU Mini Split Heat Pump — -13°F
18,000 BTU 18.5 SEER2 12.2 EER 9.8 HSPF -13°F Min Heating R454B Refrigerant ENERGY STAR

Midea 18K BTU Central AHU Mini Split Heat Pump — -13°F

18.5 SEER2 R454B -13°F Cold Climate Multi-Poise Installation Built-In Leak Detection 7-Year Compressor Warranty

The Midea Central Air Handler (AHU) is a complete ducted indoor unit equipped with its own blower motor. It is designed for whole-home heating and cooling through existing ductwork, offering a modern, highly efficient alternative to a traditional furnace and AC system.

Rated for cold-climate heating down to -13°F outdoor ambient. The air handler features a Four-Way Multi-Poise installation (upflow, downflow, left, or right) to fit almost any mechanical closet. It includes a built-in refrigerant leak detection system, advanced self-diagnostics with fault codes for easy troubleshooting, and an automatic airflow adjustment that maintains CFM as the filter gets dirty. The outdoor unit features a variable-speed inverter compressor, factory-installed base pan and crankcase heaters, and an anti-corrosive Gold Fin coating.

Efficiency & Performance

18.5
SEER2
12.2
EER
9.8
HSPF
-13°F
Min Heat Temp
R454B
Refrigerant
7yr
Compressor Warranty
πŸ“ˆ Maximum System Ratings
13,000BTU/h
Max Heating @ 5°F
Peak output in extreme cold
18,000BTU/h
Rated Heating @ 47°F
Standard heat mode output
18,000BTU/h
Rated Cooling @ 95°F
Standard cool mode output
Technical Specifications
System Type Single-Zone Central AHU Mini Split Heat Pump
Capacity 18,000 BTU (1.5 Ton)
Indoor Unit D5FSAAH18XBK (Central Air Handler with Blower)
Outdoor Unit D5CSRAH18AAK
SEER2 Rating 18.5
EER Rating 12.2
HSPF Rating 9.8
Refrigerant R454B (Low-GWP)
Voltage 208/230V, Single Phase
Min Heating Temperature -13°F
Max Heating Capacity @ 5°F 13,000 BTU/h
Rated Heating Capacity @ 47°F 18,000 BTU/h
Rated Cooling Capacity @ 95°F 18,000 BTU/h
Cooling Operating Range -13°F to 122°F
Heating Operating Range -13°F to 75°F
Controls Included 24V Interface (works with third-party thermostats)
Installation Type Multi-Poise (Upflow, Downflow, Left, Right)
Warranty 7yr Compressor / 5yr Parts (Registration Required)
Warranty Registration Register Your System

Four-Way Multi-Poise Installation

Designed for maximum flexibility. The secondary drain allows the unit to be installed in upflow, downflow, horizontal left, or horizontal right configurations.

Automatic Airflow Adjustment

As the dust filter or evaporator gets clogged, the system's microprocessor detects the load change and adjusts fan speed to keep airflow (CFM) stable.

Built-In Leak Detection

Equipped with a refrigerant leak detection sensor that alerts you to potential issues before performance drops, protecting the compressor.

Self-Diagnostics with Fault Codes

Advanced mutual data communication allows the air handler to self-detect failures and display fault codes on the electric board for easy troubleshooting.

Built-In 24V Interface

The factory-installed 24V interface allows users to control the system with most standard third-party thermostats, rather than being locked into a proprietary control.

Factory Base Pan + Crankcase Heaters

Both heaters come factory-installed on the outdoor unit — they prevent ice accumulation and protect the compressor in freezing weather.

Gold Fin Anti-Corrosion

Anti-corrosive fin coating on the outdoor condenser resists salt air, rain and corrosive elements — extended service life in coastal or humid environments.

Safety Features

Indoor fan delayed operation (anti-cold wind), plus sensor redundancy. If one temp sensor fails, the system continues running with an error code.

Why Buy From Mini Split Warehouse

Free Nationwide Shipping

No weight limits. No dimensional charges. Free freight delivery on every order.

Factory Warranty Included

Every unit ships with the full manufacturer warranty — no third-party coverage needed.

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Real Technical Support

Call or email our team. We answer specs, sizing, and installation questions — not scripts.

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Trust Badges

βœ… Factory Warranty Coverage

7
Year Compressor
5
Year Parts

*Warranty registration REQUIRED — Register Your System

Frequently Asked Questions

Will my warranty be valid if I don't use a licensed installer?

No. This is a traditional line-set system with a ducted air handler — brazing, evacuation and charging the refrigerant circuit must be performed by an EPA 608-certified technician, and the ducted side requires sheet metal or ducting work. The Midea warranty also depends on professional installation and online registration via the link in the warranty section above. Our team can answer sizing and ductwork questions before you order — just call or email.

Does this AHU require existing ductwork?

Yes. As a ducted system, it is designed to be connected to a home's existing ductwork to distribute conditioned air throughout the space. If you do not have ductwork, you would want to look at our ductless wall mount, cassette, or floor console options instead.

Does this system lose heating capacity in extreme cold?

Yes. At -13°F outdoor ambient, the system can operate, but at a reduced capacity. The max heating capacity at 5°F is 13,000 BTU/h, compared to the rated heating capacity of 18,000 BTU/h at 47°F. That's approximately 72% capacity at 5°F. For extreme cold climates, this is still a strong primary heat source, but for climates that regularly see temps well below 0°F, consider a true cold-climate Hyper Heat model if you need full capacity at those temps.

Specification
Title Midea 18K-Btu 18.5 SEER2 Central AHU Mini Split Heat Pump (-13Β°F) E-Star: 12.2 EER/9.8 HSPF (R454B)
Brand Carrier Midea North America
Category 18000 Btu | 1.5 Ton | 600-800 Sq Ft
SKU D5CSRAH18AAK/D5FSAAH18XBK
Condition new
Pack Size 1
UPC 810150840100
MPN D5CSRAH18AAK
Reviews 1
5.0 1 review

This Midea unit was a total game-changer

Jody Nelson · August 2026

Installing this Midea central AHU in our fast-food drive-through window area was an absolute game-changer for the team. With the order window sliding open every thirty seconds, standard AC units usually fail to keep up, but this system instantly recovers the temperature and pumps ice-cold air without blowing food wrappers off the counter. The air handler fit right into our compact overhead storage nook, and because the outdoor compressor runs so quietly, our line cooks can actually hear customer orders over the headset without straining.

Customer Reviews

5.0 / 5 · 1 reviews
This Midea unit was a total game-changer

Installing this Midea central AHU in our fast-food drive-through window area was an absolute game-changer for the team. With the order window sliding open every thirty seconds, standard AC units usually fail to keep up, but this system instantly recovers the temperature and pumps ice-cold air without blowing food wrappers off the counter. The air handler fit right into our compact overhead storage nook, and because the outdoor compressor runs so quietly, our line cooks can actually hear customer orders over the headset without straining.

Jody Nelson · 2026-08-07

Mini Split Warehouse offers a wide selection of ductless air conditioners and split heat pumps, providing free shipping nationwide.

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