Advantage 5th Gen 12k BTU 230V Air Handler
Component — Not a Complete System
This is the indoor unit only. To run, you also need a matching outdoor condenser and a refrigerant line set. Looking for the complete system instead? Browse complete systems.
SKU A-12-HP-WMAH-230D-O
Customize it — compatible add-ons only
Copper pair in 1/4″ × 3/8″ — the diameter this unit's spec sheet calls for. Installed and charged by your HVAC tech.
Clean channel for the lines running down your exterior wall.
Universally compatible tools and care items — maintenance kit, coil cleaner, install tools.
Sizing Help
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Proper sizing prevents short-cycling, high bills, and premature failure. Our sizing tool takes 60 seconds.
Resources
Brochures & Manuals
Description
Advantage 5th Gen 12k BTU 230V Air Handler
What's in the Box
Here's what you'll receive with your order
Wall-Mount Air Handler
Indoor ductless mini-split unit
Wireless Remote Control
Handheld remote with temperature control
Mounting Plate & Hardware
Wall mounting bracket and screws
Owner Manual
Installation and operation guide
Key Specifications
208-230V
Voltage
32dBA
Noise Level
Advantage 5th Gen 12k BTU 230V Air Handler — Model Details
What this specific model is sized for, how it installs, how it performs, and what it costs to run.
Power & Electrical Requirements
Power requirement: 208-230V 1-phase 60Hz (standard US residential 240V service). Minimum circuit ampacity is 3A with a maximum overcurrent protection of 15A. Wire the outdoor unit with 14 AWG copper on a dedicated 15A double-pole breaker (or single-pole at 120V), with a disconnect within sight of the condenser per NEC 440.14.
Install Difficulty — Professional Install
This is a professionally-installed condenser that requires a licensed HVAC technician with EPA 608 certification. The tech will pull a vacuum on the line set to 500 microns, pressure-test with nitrogen, release the factory charge, and commission per MrCool's startup procedure. Budget 1 full day for install on a single-zone system. The system supports line set lengths up to 82ft; longer runs are available as accessory kits. Plan the shortest practical route — every 10ft of line set adds roughly 2% capacity loss.
Sound Level & Comfort Features
Operating sound level ranges from 21 dB(A) on low to 44 dB(A) on high — the low end is whisper-quiet, below a normal conversation (60 dB) and comparable to a library reading room. The indoor blower offers 5 fan speeds plus auto mode, letting you trade airflow for quiet operation in bedrooms while running louder in living areas.
Warranty & Certifications
Manufacturer warranty: 1 Year on parts, 2 Years on the compressor. AHRI certified and UL/ETL listed for North American electrical safety — required for most utility rebate and tax credit programs.
What's in the Box & Compatibility
Ships as a Mini-Split Air Handler with remote control included.
Product Details
The 5th Generation MRCOOL® 12k 230V Advantage Air Handler now features R454B refrigerant, an eco-friendly choice that enhances energy efficiency, reduces greenhouse gas emissions, and lowers Global Warming Potential (GWP). Engineered for quiet operation, this mini-split unit provides reliable heating and cooling for your home without requiring ductwork, making it a cost-effective, efficient choice for any room. Designed with homeowners in mind, the sleek Advantage air handler combines power and affordability, delivering balanced, consistent comfort. The built-in Wi-Fi feature allows you to control settings remotely, ensuring easy temperature adjustments from anywhere. You can also program it to automatically adjust overnight for optimized comfort and energy savings. Backed by MRCOOL’s strong warranty, the Advantage Series offers 1 year on parts, 2 years on the compressor, and 1 year on the remote control with registration, ensuring long-lasting peace of mind. You can even enjoy the Limited Lifetime warranty with registration in the MRCOOL® Care program! Say goodbye to comfort concerns—the MRCOOL® Advantage is here to keep your space perfectly climate-controlled with high efficiency, eco-conscious design, and user-friendly technology tailored to fit your needs. Experience ultimate comfort without the worry with the MRCOOL® Advantage Air Handler!
Specifications
| Voltage | 208-230 V |
| Noise Level | 32 dBA |
| Max Line Set | 82 ft |
| Tonnage | 1 Ton |
| Airflow | 359.0 / 306.1 / 206.0 / 144.2 / / CFM |
| Phase | 1 |
| Liquid Line Size | 1/4 |
| Suction Line Size | 3/8 |
Features
- Gold Fin® condenser: corrosion resistant - live on the coast? Don't worry, our condenser is built to resist long term corrosion
- Includes features such as timer mode, refrigerant leakage detection, and more
- Keep the included remote close by, and MRCOOL DIY®'s Follow Me® function will track the air temperature around you to ensure maximum comfort.
- The MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.
- R-454B refrigerant
- AHRI certified
- NEEP ccASHP Listed
- CEE Tier1 - North
Frequently Asked Questions
Everything you need to know about this product
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Ships Nationwide — Shop by State
We deliver the Advantage 5th Gen 12k BTU 230V Air Handler to all 50 states via FedEx, UPS, and truck freight. Each state page lists local rebate programs and utility incentives.