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)
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:
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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)
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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:
- 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 Lifetime warranty requires registration and compliance with terms/conditions in the warranty document.
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We will prepare your order within 24 hours if it’s received on a weekday (before noon). Orders are shipped in one to two business days. Transit time is between 3 to 6 business days, although exceptions apply. We email tracking information once your purchase is shipped.
Delivery Map
IMPORTANT DELIVERY INFORMATION: Please be kindly informed that this air conditioner, due to its weight and shipping restrictions, is shipped palletized with an arranged freight service and requires an appointment for delivery. To AVOID delays, please check if the provided phone number in the order details is a current number where you can be reached. You can also contact the carrier directly and refer to your tracking number to set up a date and time for your appointment. It is your responsibility to ensure a safe and secure environment for delivery. Please note that we cannot be held liable for any packages that are stolen or lost after delivery has been confirmed. PLEASE verify your shipping address, as changes to the address after freight has shipped can result in an additional 15% or higher fee depending on freight weight and dimensions.
SMALLWARES INFORMATION: Please be informed that for smaller items, such as Installation Kits, Smart Connectivity Dongles, and TTW Sleeves, when these items are ordered individually, they may be shipped via FedEx without a signature requirement. It is your responsibility to ensure a safe and secure environment for delivery. Please note that we cannot be held liable for any packages that are stolen or lost after delivery has been confirmed. Thank you for your understanding and cooperation.
INSPECT YOUR MERCHANDISE BEFORE SIGNING: Please inspect your boxes thoroughly when you receive them. They should arrive shrink-wrapped and on a pallet. If you notice any damages or imperfections (e.g. crushed box or forklift hole), please write comments on the receipt before signing for delivery, no matter how small damages seem. Contact us immediately to assist you.
Shipping & Delivery
We will prepare your order within 24–48 hours if it’s received on a weekday (before noon). Orders are shipped in one to two business days. Transit time is between 3 to 6 business days, although exceptions apply. We email tracking information once your purchase is shipped.
Delivery Map
IMPORTANT DELIVERY INFORMATION
Please be informed that this air conditioner, due to its weight and shipping restrictions, is shipped palletized with an arranged freight service and requires an appointment for delivery.
To AVOID delays, please make sure the phone number in your order details is accurate and one where you can be reached. You may also contact the carrier directly using your tracking number to schedule your delivery.
It is your responsibility to ensure a safe and secure delivery environment. We are not liable for any packages that are stolen or lost after delivery is confirmed.
Please verify your shipping address carefully. Changes to your shipping address after the freight has been shipped may result in additional fees of 15% or more, depending on freight weight and dimensions.
SMALLWARES INFORMATION
Smaller items such as Installation Kits, Smart Connectivity Dongles, and TTW Sleeves may be shipped via FedEx without a signature requirement if ordered individually.
It is your responsibility to ensure a safe delivery location. We are not liable for packages lost or stolen after delivery confirmation. Thank you for your understanding and cooperation.
INSPECT YOUR MERCHANDISE BEFORE SIGNING
Please inspect your boxes carefully upon delivery. Shipments should arrive shrink-wrapped and on a pallet. If you notice any damage or signs of mishandling (such as a crushed box or forklift puncture), write comments on the delivery receipt before signing, even if the damage appears minor.
Contact us immediately if any issues arise so we can assist you promptly.
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