MRCOOL Advantage 12,000 BTU 5th Gen Ductless Mini Split Air Handler - 115V (A-12-HP-WMAH-115D-O)

MRCOOL SKU: A-12-HP-WMAH-115D-O

Choose your location

enter a US zip code

Price:
Sale price$305.00

Description

Experience Whisper-Quiet Performance in Every Room - MRCOOL Advantage 12,000 BTU 5th Gen Ductless Air Handler - 21.2 SEER2, 115V

The 5th Generation MRCOOL 12k 115V 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, allowing it to deliver consistent, balanced 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 enroll in the MRCOOL Care Program and enjoy our Limited Lifetime warranty. Say goodbye to comfort concerns - the MRCOOL Advantage Air Handler 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!

⚠️ Professional Installation Required: Licensed HVAC technician must handle installation, evacuation, refrigerant charging, and system connections. Unit is NOT pre-charged and sold separately from outdoor condenser.

 

Ideal For:

  • Licensed HVAC contractors and installers - Professional-grade 12K air handler for reliable system installations, replacements, and service upgrades across residential properties.
  • Smart home enthusiasts and tech-forward homeowners - Integrated Wi-Fi enables voice commands via Alexa and Google Assistant, plus mobile app control for complete automation.
  • Homeowners with larger rooms and open spaces - 12,000 BTU capacity efficiently cools and heats spaces up to 500 sq ft without ductwork installation.
  • Property owners seeking quiet, discreet solutions - Wall-mounted design with whisper-quiet operation blends seamlessly into any room without visual or noise disruption.

 

Why Customers Choose MRCOOL Advantage 12K Air Handler 115V

  • Superior Energy Efficiency - 21.2 SEER2 rating delivers exceptional cooling and heating performance while minimizing monthly utility expenses.
  • Increased Capacity for Larger Spaces - 12,000 BTU handles bigger rooms and higher cooling/heating demands compared to smaller air handler units.
  • Smart Home Integration - SmartHVAC Wi-Fi module works with Alexa, Google Assistant, and mobile apps for convenient voice and remote control.
  • Eco-Friendly Operation - Advanced R454B refrigerant reduces environmental impact while enhancing system efficiency and reliability.
  • Quiet, Compact Design - Wall-mounted unit operates whisper-quiet with sleek aesthetics that blend seamlessly into any residential interior.

 

Certifications & Warranty

  • Energy Star Compliant - Meets EPA energy efficiency standards for residential cooling and heating applications
  • SmartHVAC Wi-Fi Certified - Compatible with Amazon Alexa and Google Assistant voice control ecosystems
  • 1-Year Parts Limited Warranty - Full coverage on air handler components and internal systems
  • 1-Year Remote/Control Warranty - Protection for Wi-Fi module and smart control functionality
  • Professional Installation Required - Must be installed by licensed HVAC technician for optimal performance and warranty compliance
  • NOT Pre-Charged - Requires evacuation and refrigerant charging by licensed technician
  • Online Registration Required - Proper registration activates full warranty coverage and extended protection benefits
  • AHRI certified
  • NEEP ccASHP Listed
  • CEE Tier1 - North

What's Included

Everything you need is included with your Air Handler.

  • MRCOOL Advantage 5th Gen 12k BTU 115V Air Handler
  • SmartHVAC Wi-Fi control module (integrated)
  • Communication cables and connectors
  • Remote control
  • Mounting hardware and brackets
  • Installation hardware


MRCOOL Advantage 12K Air Handler 115V Features

  • 12,000 BTU with 21.2 SEER2 Rating - High-efficiency indoor unit for powerful cooling and heating performance in larger spaces up to 500 sq ft.
  • 5th Generation Technology - Latest design with improved efficiency, reliability, and smart controls for modern residential applications.
  • SmartHVAC Wi-Fi Control Module - Integrated connectivity for iOS/Android app access, Amazon Alexa, and Google Assistant voice commands.
  • R454B Eco-Friendly Refrigerant - Next-generation refrigerant reduces Global Warming Potential and meets current environmental regulations.
  • Wall-Mounted Indoor Unit Design - Sleek, compact profile fits seamlessly into any room décor with minimal installation impact.
  • Sleep Mode Function - Automated overnight temperature adjustments reduce energy consumption while maintaining comfort during sleep hours.
  • Louver Position Memory - System remembers airflow direction preferences for consistent, predictable comfort throughout the day.
  • Automatic Restart Capability - Built-in recovery system restores operation after power interruptions without manual intervention.
  • 115V Standard Electrical Connection - Operates on conventional household electrical service for straightforward installation across residential properties.
  • Professional-Grade Engineering - Designed for licensed HVAC technician installation with integrated refrigerant and electrical connections.

MRCOOL A-12-HP-WMAH-115D-O Air Handler Specs

BRAND NAME MRCOOL
SERIES Advantage 5th gen
MODEL A-12-HP-WMAH-115D-O
GTIN 840255586887
UPC 840255586887
UNIT TYPE Mini-Split
EQUIPMENT TYPE Air Handler
SHORT DESCRIPTION Advantage 5th Gen 12k BTU 115V Air Handler
CFM 341.4 / 309.0 / 206.0 / 176.6 / 94.2
TONNAGE 1
VOLTAGE (V) 115
PHASE 1
CYCLE 60
MAX FUSE BREAKER (A) 15
MIN CIRCUIT AMPACITY (A) 3
MOUNT TYPE Wall
COLOR White
DECIBEL RATING (DBA) 33.5
DECIBEL RATING (DBA) 17.5 (Low)- 45(High)
NUMBER OF SPEEDS 5
MAX LINESET LENGTH (FT) 82
LIQUID LINE SIZE 1/4
SUCTION LINE SIZE 3/8
FILTER TYPE Reusable
OVERLOAD PROTECTION Yes
APP COMPATIBILITY Yes
WORKS WITH IOS Yes
WORKS WITH ANDROID Yes
UL LISTED Yes
CSA LISTED Yes
ETL LISTED Yes
ENERGY STAR CERTIFIED Yes
AHRI CERTIFIED Yes
REGISTERED WARRANTY Extended Limited Lifetime*
BASE PARTS WARRANTY 1 Year
BASE COMPRESSOR WARRANTY 2 Years
HAS BATTERIES Yes
CONTAINS CHEMICALS Yes
CONTAINS COMPRESSED GAS Yes
PROPOSITION 65 WARNING Yes
NET DEPTH (IN) 7.44
NET HEIGHT (IN) 11.69
NET WIDTH (IN) 31.57
NET WEIGHT (LBS) 19.4
GROSS DEPTH (IN) 11.22
GROSS HEIGHT (IN) 14.96
GROSS WIDTH (IN) 34.45
GROSS WEIGHT (LBS) 25.13

Understanding your MRCOOL warranty coverage ensures long-term system performance and protection. All warranties are non-transferable and valid only at the original installation address.

Warranty Coverage by Series

DIY Series 5th Generation Mini-Splits

Models: DIY-09-HP through DIY-36-HP, DIYCASSETTE, DIY-MULTI series

  • Parts: 5 years from proof of purchase
  • Compressor: 7 years from proof of purchase
  • Remote Control: Included in parts warranty
  • Extended Lifetime Warranty: Available with MRCOOL Care Kit Program enrollment (fee required)
  • Installation: Professional installer NOT required when using MRCOOL Quick Connect Pre-Charged Line Set

Advantage Series Mini-Splits

Models: A-09-HP through A-36-HP series

  • Parts: 1 year from proof of purchase
  • Compressor: 2 years from proof of purchase
  • Extended Lifetime Warranty: Available with MRCOOL Care Kit Program enrollment (fee required)

    Must register within 180 days of purchase
    Covers compressor failure only with one-time condenser replacement
    Requires ongoing Care Kit Program maintenance
Easy Pro Series Mini-Splits

Models: EZPRO-09-HP through EZPRO-24-HP series

  • Parts: 1 year from proof of purchase
  • Compressor: 2 years from proof of purchase
  • Extended Lifetime Warranty: Available with MRCOOL Care Kit Program enrollment (fee required)

Central Ducted Systems

Models: CENTRAL-18-HP through CENTRAL-60-HP, MVP Series

  • Parts: 10 years from installation date
  • Compressor: 10 years from installation date
  • Labor: 10 years (installer responsible for first 90 days)
  • Installation: Professional installer NOT required when using MRCOOL Quick Connect Pre-Charged Line Set

Universal Series Split Systems

Models: UHP series, UAH series Air Handlers

  • Parts: 10 years from proof of purchase
  • Compressor: 10 years from proof of purchase
  • Labor: 2 years limited (begins 91 days after purchase, covers diagnostic and repair costs)
  • Installation: Professional installer required

Inverter Package Series

Models: GCSHPM series, GCSCAM series

  • Parts: 10 years from installation date
  • Labor: 5 years limited (manufacturing defects only, begins 91 days after installation)
  • Installation: Professional installation required

Olympus Series Mini-Splits

Models: MDUO, MDUCO, MDUI series

Owner-Occupied Residences:

  • Parts: 5 years standard, 10 years with registration within 60 days
  • Compressor: 5 years standard, 10 years with registration within 60 days

Commercial Applications:

  • Parts & Compressor: 5 years with registration within 60 days
  • Installation: Professional installer required

Key Warranty Conditions

Product Registration:

  • Register at mrcool.com/warranty to activate extended coverage (where applicable)
  • Registration deadlines vary by series (30-180 days from purchase)

Installation Requirements:

  • Must comply with all federal, state, and local electrical codes
  • Must follow MRCOOL installation instructions
  • Must use new, compatible, MRCOOL-approved components
  • Warranty voids if installed with used or incompatible parts

Warranty Does NOT Cover:

  • Labor, diagnostic, shipping, or installation costs (except where labor warranty applies)
  • Normal maintenance (filter cleaning, lubrication, coil cleaning)
  • Refrigerant costs or energy consumption
  • Damage from improper installation, natural disasters, or electrical issues
  • Units moved from original installation address
  • Units installed outside USA and Canada

How to File a Warranty Claim

Contact MRCOOL:

For Labor Claims (Universal/Inverter Package Series within first 2 years):

  • Phone: (844) 518-2040

Required Documentation:

  • Proof of purchase
  • Product registration confirmation (if applicable)
  • Diagnostic testing results (professional HVAC technician may be required)
  • Defective parts must be returned when requested

For complete warranty terms and conditions, visit mrcool.com/warranty

Replacement parts are covered for the remainder of the original warranty period or 30 days, whichever is longer. Some states do not allow exclusion of incidental or consequential damages. This warranty gives you specific legal rights that may vary by state or province.

30-Day Hassle Free Returns Guarantee Icon

Free 30-Day Returns

Confidence Comes Standard: 30-Day Free Returns, Zero Risk - See Full Return Policy Here

MRCOOL Advantage 12,000 BTU 5th Gen Ductless Mini Split Air Handler - 115V (A-12-HP-WMAH-115D-O) Reviews

Customers Who Viewed this Item Bought

Recently viewed

Trusted by Industry Professionals:

Vallen Promedica Mid States Bolt & Screw Co. Casto Technical Services Gary Poppins Popcorn Fleischmann's Yeast United States House of Representatives LOCKHEED MARTIN Logo zerorez logo the walsh group logo Hampton by Hilton Logo smartbank logo National Gallery of Art logo BASF Logo fairfield inn by marriott logo Taos logo Best Buy Logo Walmart logo Costco Wholesale logo

“From top-notch customer service and clear communication about order status to the quality and reliability of the cleaning equipment—everything exceeded my expectations.”

- Andrew S., Facility Manager, 09/25
All Customer Reviews