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DIY 5th Gen E Star Series
MRCOOL® 12k R454B DIY 5th Generation Mini-Split Air Handler & Condenser 115V w/ 25ft Pre-Charged Quick Connect® Line Set & DIY® Cable DIY-12-HP-WM-115D25-O
$2,359.00
$2,359.00
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Brand Information
MrCool
- Support Number
- (270)366-0457
- Official Site
- MrCool Official Site
Product Overview Full product description Read the longer product copy, features, and application notes. +
MRCOOL — Wall Mount
MRCOOL® 12k R454B DIY 5th Generation Mini-Split Air Handler & Condenser 115V w/ 25ft Pre-Charged Quick Connect® Line Set & DIY® Cable DIY-12-HP-WM-115D25-O
MRCOOL® 12k DIY 5th Generation Mini-Split Air Handler & Condenser 115V w/ 25ft Pre-Charged Quick Connect® Line Set & DIY® Cable DIY-12-HP-WM-115D25-O
Summary
The 5th Generation MRCOOL® DIY® 12k BTU 23.5 SEER Ductless Heat Pump Systemdeliverseffortless installationandpowerful heating/coolingfor spaces up to750 sq. ft., with no special tools or experience required. Itspre-charged 25-foot QuickConnect® line set(R-454B refrigerant) eliminates vacuuming, while theDIYPRO® cablereplaces electrical conduit for durable, weather-resistant performance—ideal for coastal areas thanks to theGold Fin® Condenser’s corrosion resistance.
Control your comfortthree ways: includedwireless remote,SmartHVAC app(iOS/Android), orvoice commands(Alexa/Google Assistant). Smart features likeFollow Me mode(adjusts airflow based on remote location),Auto Restart, andDry Mode(dehumidification) optimize efficiency and personalized comfort.
Backed by anindustry-leading warranty—limited coverage, plus7-year compressorand5-year parts protection—this23.5 SEERsystem combinesenergy savings,DIY simplicity, andyear-round reliability. Upgrade tosmarter, hassle-free climate controlwith MRCOOL® DIY®.
What's Included
-
Indoor UnitsMRCOOL® 12k DIY 5th Generation Mini-split Air Handler 115v w/ DIYPRO® Cable
- Outdoor UnitMRCOOL® 12k DIY 5th Generation Mini-Split Condenser 115v w/ 25ft DIY Quick Connect® Line Set
- Wireless Remote Controls
- Installation Manual
- User’s Manual
- Manufacturer Warranty
Warranty
- 7 year compressor limited warranty
- 5 year parts limited warranty
Warranty Inquiries are handled through MRCOOL athttps://mrcool.com/contact/
Technical Information
DIY-12-HP-WMAH-115D25-O(Wall Mount Air Handler)
|
BRAND NAME |
MRCOOL |
|
SERIES |
DIY 5th gen Single-Zone Mini-splits |
|
MODEL |
DIY-12-HP-WMAH-115D25-O |
|
GTIN |
00840255587006 |
|
UPC |
840255587006 |
|
SHORT DESCRIPTION |
MRCOOL® 12k DIY 5th Generation Mini-split Air Handler 115v |
|
LONG DESCRIPTION |
Upgrade your space with the 5th Generation MRCOOL® DIY® 12K BTU Ductless Heat Pump Single Zone Mini-Split Air Handler. This system is designed for straightforward, tool-free installation, with no special skills required, and provides efficient heating and cooling for areas up to 550 sq. ft. The pre-charged 25-foot DIY® QuickConnect® line set, filled with R-454B refrigerant, eliminates the need for vacuuming, saving you time, effort, and installation costs. Plus, the included DIYPRO® cable enhances durability by removing the need for electrical conduit, protecting against outdoor elements and wildlife. Take control your way—whether with the wireless remote, the SmartHVAC app for Apple and Android, or hands-free voice commands via Amazon Alexa and Google Assistant. The Gold Fin® Condenser also provides enhanced corrosion resistance, making it an excellent choice for coastal environments. Designed with your comfort in mind, the system’s wireless remote features Follow Me technology, allowing the air handler to adjust based on the remote’s location for personalized comfort. Dry Mode adds another layer of convenience by reducing humidity and preventing excess condensation. With industry-leading warranties, including a limited warranty, a 7-year compressor warranty, and a 5-year parts warranty, you can trust in long-lasting performance. Experience an easier installation, smart technology, and year-round comfort with the 5th Generation MRCOOL® DIY®. |
|
FEATURE LIST |
|
|
TONNAGE |
1 |
|
VOLTAGE (V) |
115 |
|
PHASE |
1 |
|
CYCLE |
60 |
|
MAX FUSE BREAKER (A) |
15 |
|
MIN CIRCUIT AMPACITY (A) |
3 |
|
MOUNT TYPE |
Wall |
|
COLOR |
White |
|
MAX COVERAGE AREA |
550 sqft |
|
DECIBEL RATING LOW (DBA) |
18 |
|
DECIBEL RATING HIGH (DBA) |
43 |
|
NUMBER OF SPEEDS |
5 |
|
OSCILLATION |
Yes |
|
LIQUID LINE SIZE |
1/4 |
|
SUCTION LINE SIZE |
3/8 |
|
FILTER TYPE |
Reusable |
|
AUXILIARY HEATER INCLUDED |
No |
|
AUXILIARY HEATER AVAILABLE |
No |
|
FAN ONLY OPTION |
Yes |
|
QUIET MODE |
Yes |
|
AUTO COOL |
Yes |
|
WIFI COMPATIBILITY |
Yes |
|
APP COMPATIBILITY |
Yes |
|
WORKS WITH IOS |
Yes |
|
WORKS WITH ANDROID |
Yes |
|
REMOTE CONTROL INCLUDED |
Yes |
|
UL LISTED |
Yes |
|
ETL LISTED |
Yes |
|
ENERGY STAR CERTIFIED |
Yes |
|
AHRI CERTIFIED |
Yes |
|
REGISTERED WARRANTY |
Extended Limited |
|
BASE PARTS WARRANTY |
5 |
|
BASE COMPRESSOR WARRANTY |
7 |
|
HAS BATTERIES |
Yes |
|
CONTAINS ELECTRONICS |
Yes |
|
CONTAINS CHEMICALS |
Yes |
|
CONTAINS AEROSOL |
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) |
24.91 |
|
GROSS DEPTH (IN) |
16.34 |
|
GROSS HEIGHT (IN) |
14.37 |
|
GROSS WIDTH (IN) |
36.02 |
|
GROSS WEIGHT (LBS) |
35.49 |
Outdoor Model Number:DIY-12-HP-C-115D25-O
|
BRAND NAME |
MRCOOL |
|
SERIES |
DIY 5th gen Single-Zone Mini-splits |
|
MODEL |
DIY-12-HP-C-115D25-O |
|
GTIN |
00840255586955 |
|
UPC |
840255586955 |
|
SHORT DESCRIPTION |
MRCOOL® 12k DIY 5th Generation Mini-Split Condenser 115v |
|
LONG DESCRIPTION |
The 5th Generation 5th Generation MRCOOL® DIY® 12k BTU 23.5 SEER Ductless Heat Pump Single Zone Mini Split Condenser makes home climate control easier than ever. Designed for effortless installation, this system requires no special tools or professional experience and is ideal for spaces between 350-500 sq. ft. With a pre-charged 25-foot QuickConnect® line set filled with R-454B refrigerant, setup is simple and eliminates the need for vacuuming. The included DIYPRO® cable enhances durability, replacing traditional electrical conduit to protect against weather, animals, and yardwork damage. Controlling your comfort is seamless with multiple options, including the included remote, the SmartHVAC app for Apple and Android devices, or hands-free commands via Amazon Alexa and Google Assistant. Additionally, the Gold Fin Condenser provides exceptional corrosion resistance, making it a great choice for coastal environments. Equipped with a variety of features, this system enhances efficiency and comfort. The Timer function helps manage energy use, while Auto mode maintains your desired temperature without constant adjustments. After a power outage, the system automatically resumes previous settings, and the anti-mildew function reduces condensation buildup in the air handler. Built for longevity, the 5th Generation MRCOOL® DIY® Mini Split offers an industry-leading warranty, including a limited warranty, plus a 7-year compressor and 5-year parts warranty. Combining advanced technology, user-friendly operation, and long-term reliability, this system is designed for hassle-free home comfort. |
|
FEATURE LIST |
|
|
SEER2 |
23.5 |
|
EER2 |
12.5 |
|
HSPF2-4 |
10.2 |
|
HSPF2-5 |
7.6 |
|
TONNAGE |
1 |
|
COOLING CAPACITY (BTU) |
12000 |
|
HEATING CAPACITY (BTU) |
12000 |
|
VOLTAGE (V) |
115 |
|
PHASE |
1 |
|
CYCLE |
60 |
|
MAX FUSE BREAKER (A) |
20 |
|
MIN CIRCUIT AMPACITY (A) |
18 |
|
COLOR |
White |
|
ZONE CAPACITY |
1 |
|
REFRIGERANT TYPE |
R-454B |
|
REFRIGERANT VOLUME (OZ) |
30.34 |
|
DECIBEL RATING (DBA) |
54 |
|
INVERTER |
DC |
|
LINE SET LENGTH |
25 |
|
MAX LINESET LENGTH (FT) |
82 |
|
LIQUID LINE SIZE |
1/4 |
|
SUCTION LINE SIZE |
3/8 |
|
COMPRESSOR MOTOR TYPE |
Rotary |
|
AUXILIARY HEATER INCLUDED |
No |
|
AUXILIARY HEATER AVAILABLE |
No |
|
FAN ONLY OPTION |
Yes |
|
QUIET MODE |
Yes |
|
AUTO COOL |
Yes |
|
WIFI COMPATIBILITY |
Yes |
|
APP COMPATIBILITY |
Yes |
|
WORKS WITH IOS |
Yes |
|
WORKS WITH ANDROID |
Yes |
|
UL LISTED |
Yes |
|
ETL LISTED |
Yes |
|
ENERGY STAR CERTIFIED |
Yes |
|
AHRI CERTIFIED |
Yes |
|
REGISTERED WARRANTY |
Extended Limited |
|
BASE PARTS WARRANTY |
5 |
|
BASE COMPRESSOR WARRANTY |
7 |
|
HAS BATTERIES |
Yes |
|
CONTAINS ELECTRONICS |
Yes |
|
CONTAINS CHEMICALS |
Yes |
|
CONTAINS AEROSOL |
Yes |
|
CONTAINS COMPRESSED GAS |
Yes |
|
PROPOSITION 65 WARNING |
Yes |
|
NET DEPTH (IN) |
11.93 |
|
NET HEIGHT (IN) |
21.85 |
|
NET WIDTH (IN) |
30.12 |
|
NET WEIGHT (LBS) |
83.11 |
|
GROSS DEPTH (IN) |
16.54 |
|
GROSS HEIGHT (IN) |
27.56 |
|
GROSS WIDTH (IN) |
36.22 |
|
GROSS WEIGHT (LBS) |
65.48 |
Certifications![]()
Specs & Documents Product details Open technical specs, manuals, videos, and product documents. +
Product FAQs
Product FAQs
Helpful answers matched to this product, brand, specs, and configuration.Where should I purchase MRCOOL equipment?
MRCOOL products are sold through authorized retailers and distributors rather than directly by MRCOOL to consumers. Purchasing through an authorized seller helps confirm that the equipment is genuine and that the correct purchase records are available for product and warranty support.
Can MRCOOL components from different series, generations, or refrigerant platforms be mixed?
Do not assume that MRCOOL indoor units, outdoor units, line sets, controls, or accessories are interchangeable. Use only manufacturer-approved combinations for the exact model family; in particular, MRCOOL states that R-410A products are not compatible with R-454B products and the refrigerants must never be mixed.
What makes an eligible MRCOOL DIY system different from a conventional mini-split?
Eligible MRCOOL DIY systems are designed around installation-friendly components such as factory-precharged line sets and compatible connection hardware. The included components vary by generation and package, and electrical work, permits, clearances, and local code requirements still need to be followed.
Does MRCOOL send technicians to a home or jobsite?
MRCOOL does not dispatch field technicians. Its in-house team provides phone and email assistance for diagnosis, troubleshooting, and product guidance, while the owner arranges and pays for any local on-site technician unless a specific written warranty program states otherwise.
Why do I need the exact MRCOOL model and serial number?
The model and serial number identify the exact equipment, generation, capacity, and applicable documentation or warranty. Use the identification labels on the equipment and MRCOOL’s registration guidance rather than relying only on a product title or general series name.
Are all MRCOOL systems designed for do-it-yourself installation?
No. Only product families specifically identified by MRCOOL as DIY-capable should be treated as do-it-yourself systems. Other lines, including the Advantage Series, require professional HVAC installation, so always follow the installation requirements for the exact model.
Where can I find MRCOOL manuals, specifications, certifications, and installation documents?
MRCOOL maintains a documentation library and a product support center with model-specific installation manuals, owner manuals, technical documents, certifications, warranty information, and troubleshooting resources. Search using the exact model number because documents can differ by series, generation, capacity, and refrigerant.
What types of products does MRCOOL offer?
MRCOOL offers a broad range of comfort products, including ductless mini-splits, central ducted split systems, packaged heat pumps, geothermal systems, water heaters, fans, thermostats, line sets, and HVAC accessories. Available capacities, refrigerants, efficiencies, and features depend on the exact product family and model.
When should an MRCOOL system be registered?
Register the system as soon as possible after purchase and installation. Several MRCOOL residential warranty programs require registration within 60 days of installation, or within 60 days of purchase when the installation date cannot be verified, but the exact requirement is controlled by the warranty document for the specific product.
Where can I purchase replacement parts for an MRCOOL system?
MRCOOL recommends starting with the original place of purchase because many dealers can special-order replacement parts. If that is not available, use an authorized MRCOOL parts distributor and confirm compatibility with the exact model and serial number before ordering.
How can I contact MRCOOL customer or technical support?
MRCOOL provides support by phone at (270) 366-0457, by email at support@mrcool.com, and through its online support-request form. Have the exact model and serial number available so the support team can identify the correct product documentation and next steps.
Can MRCOOL support work with my local HVAC technician?
Yes. If a local technician is scheduled, MRCOOL’s in-house support team can help coordinate troubleshooting and product guidance with that technician. The technician should have the model, serial number, system configuration, measurements, error codes, and a clear description of the issue available.
Where can I find MRCOOL troubleshooting and error-code information?
MRCOOL’s support center provides separate technical-support sections for ductless systems, residential ducted systems, product-specific error codes, wiring guidance, installation procedures, and troubleshooting articles. Use the exact series and model because codes and procedures are not universal across all MRCOOL equipment.
How do I register an MRCOOL product for warranty coverage?
Register the product through MRCOOL’s online warranty-registration page. Be prepared to provide the serial number along with purchase, owner, installation-location, and installer information requested by the registration form.
Does every MRCOOL product have the same warranty?
No. MRCOOL publishes separate warranty terms for different product families, generations, and applications. For example, the current DIY 5th Generation warranty lists 5-year parts and 7-year compressor coverage, but that coverage should not be assumed for another MRCOOL series; always check the exact product warranty document.