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DIY Hybrid Series
MRCOOL® 36,000 BTU (3 TON) R-454B DIY Hybrid™ Central Ducted Air Handler + DIY 5th Gen Single-Zone Mini-Split Condenser Complete System (25-ft QuickConnect® Line Set)
$3,641.00
$4,540.98
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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 — Air Handlers
MRCOOL® 36,000 BTU (3 TON) R-454B DIY Hybrid™ Central Ducted Air Handler + DIY 5th Gen Single-Zone Mini-Split Condenser Complete System (25-ft QuickConnect® Line Set)
MRCOOL® 36,000 BTU (3 TON) R-454B DIY Hybrid™ Central Ducted Air Handler + DIY 5th Gen Single-Zone Mini-Split Condenser Complete System
Summary
Bring efficient, ducted comfort to larger spaces with the MRCOOL® DIY Hybrid™ 36K Central Ducted System—pairing theDIY Hybrid™ 3 Ton Air Handlerwith theDIY® 5th Generation 36K Single-Zone Condenser. Designed for straightforward, DIY-friendly installation, this combo delivers reliable heating and cooling for approximately1,000–1,550 sq. ft. The pre-charged25-ft QuickConnect®line set eliminates vacuuming or brazing. Enjoy app + voice control, durable painted galvanized steel construction, and eco-forwardR-454Brefrigerant.
Manage comfort from anywhere with the MRCOOL® SmartHVAC app (iOS/Android) and voice assistants. For coastal installs, theGold Fin®condenser coating boosts corrosion resistance. Register to qualify forExtended Limitedcoverage, plus included compressor and parts warranties.
Key Features & Benefits:
- DIY-Ready Install:Pre-chargedQuickConnect®25-ft line set—no vacuum pump or special tools needed; includes DIYPRO® cable for rugged outdoor routing.
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Whole-Home, Ducted Comfort:Multi-position air handler (upflow, downflow, horizontal L/R) adapts to your layout.
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Smart Control:App control (iOS/Android), plusAmazon Alexa&Google Assistantvoice support; air handler includes aSmart Wi-Fi Thermostat.
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Efficient Performance:SEER2 18condenser efficiency with inverter operation for steady temperatures and energy savings.
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Quiet Operation:Air handler down to31 dBA(low); condenser ~60.5 dBA.
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Future-Forward Refrigerant:UsesR-454Bfor high performance with a lower environmental impact.
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Optional Electric Heat Kit:Add5kW–20kWauxiliary electric heat to boost winter comfort.
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Strong Coverage:Extended Limited(registered) +7-yr compressor+5-yr parts(condenser);5-yr parts(air handler).
What’s Included?
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MRCOOL® DIY® 5th Gen 36K Single-Zone Condenser (Model:DIY-36-HP-C-230D25-O)
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MRCOOL® DIY Hybrid™ 3 Ton Central Ducted Air Handler (Model:DIY-36-HP-MUAH-230D25-O)
- MRCOOL® DIY Hybrid™ 3 Ton Central Ducted Air Handler (Model:DIY-36-HP-MUAH-230D25-O)
- 25-ft Pre-Charged QuickConnect®Line Set (expandable up to total213.2 ftcondenser /246 ftair handler capability with additional sets/couplers)
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MRCOOL® Smart Wi-Fi Thermostat (for air handler)
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Wireless Handheld Remote
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DIYPRO® Cable
Outdoor Unit:DIY-36-HP-C-230D25-O
| BRAND NAME | MRCOOL |
| SERIES | DIY 5th gen Single-Zone Mini-splits |
| MODEL | DIY-36-HP-C-230D25-O |
| GTIN | 00840255586986 |
| UPC | 840255586986 |
| SHORT DESCRIPTION | MRCOOL® 36k DIY 5th Generation Mini-Split Condenser 230V |
| SEER2 | 18 |
| EER2 | 8.5 |
| HSPF2-4 | 8.5 |
| HSPF2-5 | 6.5 |
| TONNAGE | 3 |
| COOLING CAPACITY (BTU) | 36000 |
| HEATING CAPACITY (BTU) | 36000 |
| VOLTAGE (V) | 208/230 |
| PHASE | 1 |
| CYCLE | 60 |
| MAX FUSE BREAKER (A) | 35 |
| MIN CIRCUIT AMPACITY (A) | 33 |
| COLOR | White |
| ZONE CAPACITY | 1 |
| REFRIGERANT TYPE | R-454B |
| REFRIGERANT VOLUME (OZ) | 109.7 |
| DECIBEL RATING (DBA) | 60.5 |
| INVERTER | DC |
| LINE SET LENGTH (FT) | 25 (included) |
| MAX LINESET LENGTH (FT) | 213.2 |
| LIQUID LINE SIZE | 3/8 |
| SUCTION LINE SIZE | 5/8 |
| COMPRESSOR MOTOR TYPE | Rotary |
| FAN ONLY OPTION | Yes |
| QUIET MODE | Yes |
| AUTO COOL | Yes |
| WIFI COMPATIBILITY | Yes |
| APP COMPATIBILITY | Yes (iOS/Android) |
| CERTIFICATIONS | UL, ETL, AHRI |
| WARRANTY (REGISTERED) | Extended Limited |
| BASE WARRANTIES | 7-Year Compressor / 5-Year Parts |
| HAS BATTERIES | Yes |
| CONTAINS ELECTRONICS | Yes |
| CONTAINS CHEMICALS | Yes |
| CONTAINS AEROSOL | Yes |
| CONTAINS COMPRESSED GAS | Yes |
| NET DEPTH (IN) | 16.14 |
| NET HEIGHT (IN) | 31.89 |
| NET WIDTH (IN) | 37.24 |
| NET WEIGHT (LBS) | 152.12 |
| GROSS DEPTH (IN) | 19.88 |
| GROSS HEIGHT (IN) | 37.01 |
| GROSS WIDTH (IN) | 42.91 |
| GROSS WEIGHT (LBS) | 183.42 |
Indoor Unit:DIY-36-HP-MUAH-230D25-O
| BRAND NAME | MRCOOL |
| SERIES | DIY Hybrid™ Air Handler |
| MODEL | DIY-36-HP-MUAH-230D25-O |
| GTIN | 00840255588416 |
| UPC | 840255588416 |
| UNIT TYPE | Split System Ducted DIY Air Handler |
| EQUIPMENT TYPE | Air Handler |
| CONFIGURATION | Multi-Position (Upflow/Downflow/Horizontal L/R) |
| SHORT DESCRIPTION | 36K MRCOOL® DIY Hybrid™ Air Handler |
| LONG DESCRIPTION | The 36K MRCOOL® DIY Hybrid™ Air Handler is a durable, ducted solution sized for up to ~1,550 sq. ft. It pairs seamlessly with MRCOOL® DIY condensers for a true DIY install, features a painted galvanized steel cabinet, and includes a self-diagnostics panel for fast troubleshooting. Multi-position installation (upflow, downflow, horizontal left/right) increases flexibility. Uses eco-conscious R-454B refrigerant. Add an optional 5kW–20kW electric heat kit for extra winter warmth. Includes the MRCOOL® Smart Wi-Fi Thermostat for app scheduling and control. |
| WORKS WITH | DIY MZ or 36K DIY Condenser |
| CFM | 1189 / 1083 / 971.2 / 865.2 |
| TONNAGE | 3 |
| COOLING CAPACITY (BTU) | 36000 |
| HEATING CAPACITY (BTU) | 37000 |
| VOLTAGE (V) | 208/230 |
| PHASE | 1 |
| CYCLE | 60 |
| MAX FUSE BREAKER (A) | 15 |
| MIN CIRCUIT AMPACITY (A) | 6 |
| COLOR | Gray |
| RATED LOAD | 4.5 |
| MAX COVERAGE AREA (SQ FT) | 1550 |
| REFRIGERANT TYPE | R-454B |
| DECIBEL RATING LOW (DBA) | 31 |
| DECIBEL RATING (DBA) | 45 |
| DECIBEL RATING HIGH (DBA) | 48 |
| NUMBER OF SPEEDS | 4 |
| DRAIN CONNECTION SIZE | 3/4 |
| LINESET INCLUDED | Yes (25-ft QuickConnect®) |
| MAX LINESET LENGTH (FT) | 246 |
| LIQUID LINE SIZE | 3/8 |
| SUCTION LINE SIZE | 5/8 |
| FILTER TYPE | Replaceable |
| FILTER SIZE | Refer to Installation Manual |
| METERING DEVICE | EEV |
| AUXILIARY HEATER INCLUDED | No |
| AUXILIARY HEATER AVAILABLE | Yes (5kW, 8kW, 10kW, 15kW, 20kW) |
| ADJUSTABLE THERMOSTAT | Yes |
| WIFI COMPATIBILITY | Yes |
| APP COMPATIBILITY | Yes (iOS/Android) |
| CERTIFICATIONS | UL, CSA, ETL, AHRI |
| ENERGY STAR CERTIFIED | No |
| REGISTERED WARRANTY | Extended Limited |
| BASE WARRANTY | 5 Year Parts |
| CONTAINS ELECTRONICS | Yes |
| CONTAINS CHEMICALS | Yes |
| CONTAINS COMPRESSED GAS | Yes |
| PROPOSITION 65 WARNING | Yes |
| RESTRICTED STATES | GU; PR; VI |
| NET DEPTH (IN) | 21.02 |
| NET HEIGHT (IN) | 49.02 |
| NET WIDTH (IN) | 21.02 |
| NET WEIGHT (LBS) | 128.31 |
| GROSS DEPTH (IN) | 26.57 |
| GROSS HEIGHT (IN) | 52.56 |
| GROSS WIDTH (IN) | 24.41 |
| GROSS WEIGHT (LBS) | 153.66 |
Important Notes:
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DIY system designed for ducted HVAC setups using QuickConnect® line sets. Follow all electrical/codes and clearances.
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Register to qualify for Extended Limited coverage; see warranty for terms and eligibility.
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Maximum total line set length up to213.2 ft(condenser) /246 ft(air handler capability) with additional pre-charged sets and proper couplers.
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Not for sale/shipment to restricted locations listed above.
Resources & Documentation:
- DIY® 5th Gen Brochure (Condenser)
- DIY® 5th Gen Single-Zone Install/User Manual
- DIY Hybrid™ Air Handler Brochure
- DIY Hybrid™ Air Handler Install/User Manual
- DIY® Warranty Guide
- AHRI Certificate – DIY-36-HP-MUAH-230D00-O
- EnergyGuide – DIY-36-HP-MUAH-230D00-O
- AHRI Certificate – DIY-36-HP-C-230D25-O
- EnergyGuide – DIY-36-HP-C-230D25-O
*Extended Limited warranty requires registration and compliance with terms/conditions in the warranty document.
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.