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 the DIY Hybrid™ 3 Ton Air Handler with the DIY® 5th Generation 36K Single-Zone Condenser. Designed for straightforward, DIY-friendly installation, this combo delivers reliable heating and cooling for approximately 1,000–1,550 sq. ft. The pre-charged 25-ft QuickConnect® line set eliminates vacuuming or brazing. Enjoy app + voice control, durable painted galvanized steel construction, and eco-forward R-454B refrigerant.
Manage comfort from anywhere with the MRCOOL® SmartHVAC app (iOS/Android) and voice assistants. For coastal installs, the Gold Fin® condenser coating boosts corrosion resistance. Register to qualify for Extended Limited Lifetime* coverage, plus included compressor and parts warranties.
Key Features & Benefits:
- DIY-Ready Install: Pre-charged QuickConnect® 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), plus Amazon Alexa & Google Assistant voice support; air handler includes a Smart Wi-Fi Thermostat.
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Efficient Performance: SEER2 18 condenser efficiency with inverter operation for steady temperatures and energy savings.
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Quiet Operation: Air handler down to 31 dBA (low); condenser ~60.5 dBA.
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Future-Forward Refrigerant: Uses R-454B for high performance with a lower environmental impact.
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Optional Electric Heat Kit: Add 5kW–20kW auxiliary electric heat to boost winter comfort.
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Strong Coverage: Extended Limited Lifetime* (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 total 213.2 ft condenser / 246 ft air 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 Lifetime* |
| 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 Lifetime* |
| 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 Lifetime* coverage; see warranty for terms and eligibility.
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Maximum total line set length up to 213.2 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:
*Extended Limited Lifetime warranty requires registration and compliance with terms/conditions in the warranty document.
