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DIY 5th Gen E Star Series
MRCOOL® 18k R454B DIY 5th Generation Mini-Split Air Handler & Condenser 230VV w/ 25ft Pre-Charged Quick Connect® Line Set & EZPRO® Cable DIY-18-HP-WM-230D25-O
$2,909.00
$2,909.00
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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® 18k R454B DIY 5th Generation Mini-Split Air Handler & Condenser 230VV w/ 25ft Pre-Charged Quick Connect® Line Set & EZPRO® Cable DIY-18-HP-WM-230D25-O
MRCOOL® 18k DIY 5th Generation Mini-Split Air Handler & Condenser 230VV w/ 25ft Pre-Charged Quick Connect® Line Set & EZPRO® Cable DIY-18-HP-WM-230D25-O
Summary
The 5th Generation MRCOOL® DIY® 18K BTU 22.5 SEER Ductless Heat Pump Systemprovides powerful, efficient heating and cooling for spaces up to 800 sq. ft., designed specifically for easy DIY installation. With its pre-charged 25-foot QuickConnect® line set filled with R-454B refrigerant, the system eliminates the need for vacuuming or professional assistance, making setup quick and cost-effective. The included DIYPRO® cable replaces traditional electrical conduit, offering enhanced durability against weather, wildlife, and outdoor wear, while the corrosion-resistant Gold Fin® Condenser ensures long-lasting performance, even in coastal environments.
Control your comfort effortlessly with multiple options, including the wireless remote with Follow Me technology, the SmartHVAC app for Apple and Android devices, or hands-free voice commands via Amazon Alexa and Google Assistant. The system is packed with user-friendly features like Dry Mode for humidity control, an energy-saving Timer function, and Auto Mode for consistent temperature maintenance. After a power outage, the unit automatically restores your previous settings, and the anti-mildew function helps prevent excess moisture buildup for cleaner, healthier air.
Backed by industry-leading warranties—including a limited warranty, 7-year compressor coverage, and 5-year parts protection—this 22.5 SEER system delivers reliable, energy-efficient performance year-round. Combining smart technology, coastal-ready durability, and hassle-free installation, the MRCOOL® DIY® 18K BTU system is the perfect solution for customizable, professional-grade comfort in any home.
What's Included
-
Indoor UnitsMRCOOL® 18k DIY 5th Generation Mini-split Air Handler 230v w/ DIYPRO® Cable
- Outdoor UnitMRCOOL® 18k DIY 5th Generation Mini-Split Condenser 230v 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-18-HP-WMAH-230D25-O(Wall Mount Air Handler)
|
BRAND NAME |
MRCOOL |
|
SERIES |
DIY 5th gen Single-Zone Mini-splits |
|
MODEL |
DIY-18-HP-WMAH-230D25-O |
|
GTIN |
00840255587044 |
|
UPC |
840255587044 |
|
SHORT DESCRIPTION |
MRCOOL® 18k DIY 5th Generation Mini-split Air Handler 230v |
|
LONG DESCRIPTION |
The 5th Generation MRCOOL® DIY® 18K BTU Ductless Heat Pump Single Zone Mini-Split Air Handler is a powerful and efficient solution for heating and cooling spaces up to 800 sq. ft. Designed with a true DIY installation in mind, this system eliminates the need for special tools or professional assistance, making setup fast, simple, and cost-effective. One of the standout features is the pre-charged 25-foot DIY® QuickConnect® line set, which comes pre-filled with R-454B refrigerant. This means there’s no need for vacuuming, cutting down on installation time and costs. Additionally, the included DIYPRO® cable removes the need for electrical conduit, providing added durability and protection against outdoor elements and wildlife. Controlling your system is effortless with multiple options to fit your lifestyle. Adjust settings using the wireless remote, the SmartHVAC app for Apple and Android devices, or hands-free voice commands through Amazon Alexa and Google Assistant. Engineered for long-lasting performance, the Gold Fin® Condenser in the outdoor unit offers superior corrosion resistance, especially beneficial in coastal environments. For added comfort, the Follow Me function on the remote allows the air handler to monitor and adjust airflow based on the remote’s location, ensuring even temperature control. Dry Mode helps maintain a comfortable indoor environment by reducing excess humidity and condensation buildup. Backed by industry-leading warranties—including a limited warranty, a 7-year compressor warranty, and a 5-year parts warranty—the 5th Generation MRCOOL® DIY® is built for reliability. Enjoy smart features, easy installation, and dependable year-round comfort with this innovative ductless mini-split system. |
|
FEATURE LIST |
|
|
TONNAGE |
1.5 |
|
VOLTAGE (V) |
208/230 |
|
PHASE |
1 |
|
CYCLE |
60 |
|
MAX FUSE BREAKER (A) |
15 |
|
MIN CIRCUIT AMPACITY (A) |
3 |
|
MOUNT TYPE |
Wall |
|
COLOR |
White |
|
MAX COVERAGE AREA |
800 sqft |
|
DECIBEL RATING LOW (DBA) |
19 |
|
DECIBEL RATING HIGH (DBA) |
54.5 |
|
NUMBER OF SPEEDS |
5 |
|
OSCILLATION |
Yes |
|
LIQUID LINE SIZE |
1/4 |
|
SUCTION LINE SIZE |
1/2 |
|
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) |
8.9 |
|
NET HEIGHT (IN) |
13.19 |
|
NET WIDTH (IN) |
42.52 |
|
NET WEIGHT (LBS) |
35.49 |
|
GROSS DEPTH (IN) |
17.68 |
|
GROSS HEIGHT (IN) |
14.29 |
|
GROSS WIDTH (IN) |
46.73 |
|
GROSS WEIGHT (LBS) |
49.6 |
Outdoor Model Number:DIY-18-HP-C-230D25-O
|
BRAND NAME |
MRCOOL |
|
SERIES |
DIY 5th gen Single-Zone Mini-splits |
|
MODEL |
DIY-18-HP-C-230D25-O |
|
GTIN |
00840255586962 |
|
UPC |
840255586962 |
|
SHORT DESCRIPTION |
MRCOOL® 18k DIY 5th Generation Mini-Split Condenser 230v |
|
LONG DESCRIPTION |
Introducing the new 5th Generation MRCOOL® DIY® 18K BTU 22.5 SEER Ductless Heat Pump Single Zone Mini Split Condenser, a game-changer for home climate control. Designed for straightforward installation, it requires no specialized tools or professional help, making it an excellent choice for spaces ranging from 500-750 sq. ft. The system includes a pre-charged 25-foot QuickConnect® line set filled with R-454B refrigerant, streamlining installation by eliminating the need for vacuuming. The DIYPRO® cable adds extra protection against weather, animals, and yardwork damage, replacing the need for traditional electrical conduit. Managing your home's temperature has never been easier. You can adjust settings using the included remote, the SmartHVAC app for Apple and Android devices, or voice commands via Amazon Alexa and Google Assistant. The Gold Fin Condenser enhances durability, providing excellent corrosion resistance for coastal environments. Designed for efficiency and comfort, this system offers multiple features. The Timer function helps control energy use, while Auto mode maintains your preferred temperature without manual adjustments. After a power outage, the unit automatically restores previous settings, and the anti-mildew function prevents excess moisture buildup inside the air handler. Built for long-term reliability, the 5th Generation MRCOOL® DIY® Mini Split comes with an industry-leading warranty, featuring a limited warranty, plus 7 years on the compressor and 5 years on parts. With its innovative design, simple installation, and dependable performance, this system delivers hassle-free comfort for your home. |
|
FEATURE LIST |
|
|
SEER2 |
22.5 |
|
EER2 |
13.7 |
|
HSPF2-4 |
11.5 |
|
HSPF2-5 |
8.5 |
|
TONNAGE |
1.5 |
|
COOLING CAPACITY (BTU) |
18000 |
|
HEATING CAPACITY (BTU) |
18000 |
|
VOLTAGE (V) |
208/230 |
|
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) |
44.8 |
|
DECIBEL RATING (DBA) |
58.5 |
|
INVERTER |
DC |
|
LINE SET LENGTH |
25 |
|
MAX LINESET LENGTH (FT) |
98.4 |
|
LIQUID LINE SIZE |
1/4 |
|
SUCTION LINE SIZE |
1/2 |
|
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) |
13.46 |
|
NET HEIGHT (IN) |
26.5 |
|
NET WIDTH (IN) |
35.04 |
|
NET WEIGHT (LBS) |
93.48 |
|
GROSS DEPTH (IN) |
18.11 |
|
GROSS HEIGHT (IN) |
29.53 |
|
GROSS WIDTH (IN) |
40.55 |
|
GROSS WEIGHT (LBS) |
114.2 |
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.