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MRCOOL DIY-MULTI3-18HP230D-O DIY-06-HP-WMAH-230D25-O-3
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MRCOOL 18K BTU 23.9 SEER2 DIY 5th Gen Wall Mount Mini Split System 3-Zone 6+6+6

By MRCOOL | Model: DIY-MULTI3-18HP230D-O / 3-DIY-06-HP-WMAH-230D25-O | ID: 50257
✓ No Sales Tax - in most states excluding California
✓ Manufacturer Warranty Included
✓ Satisfaction Guarantee - or return within 30 Days
✓ Most Products In Stock - Call or Text (833) 658-3387 for availability
$2,926.00 + FREE SHIPPING

ADD TO CART FOR BEST PRICE

Important Installation Note: This is a professional-grade, non-DIY system (including ACiQ, Goodman, Daikin, and select MrCool systems). It requires installation and configuration by a licensed HVAC technician to ensure correct setup, safety compliance, and to maintain your manufacturer warranty coverage.

Product Details

MRCOOL 18K BTU Mini Split Heat Pump Condenser DIY 5th Gen 3 Zone R454B DIY-MULTI3-18HP230D-O 

The MRCOOL DIY 5th Generation 18,000 BTU Multi Zone Mini Split Condenser is a powerful and flexible comfort solution designed to heat and cool up to three rooms with a combined coverage of approximately 750 square feet. Built for true DIY installation, this condenser eliminates the need for professional HVAC services, helping homeowners save both time and money.

With an impressive efficiency rating of up to 23.9 SEER2 and 10 HSPF2-4, this system delivers reliable year round performance while keeping energy costs low. The condenser supports up to three indoor air handlers, allowing customized temperature control in multiple zones. Installation is simplified through pre charged Quick Connect line sets filled with environmentally friendly R 454B refrigerant. These line sets are sold separately and remove the need for vacuuming or specialized tools.

Comfort control is fully customizable using the SmartHVAC app, which allows users to manage temperatures, schedules, and operating modes directly from a mobile device. Voice control compatibility with Amazon Alexa and Google Assistant adds hands free convenience. Built for durability, the Gold Fin condenser coating provides enhanced corrosion resistance, making it suitable for coastal and high humidity environments. Backed by industry leading warranties, this condenser delivers dependable performance and peace of mind.

Key Features

  • DIY Installation: Tool free, vacuum free installation with no HVAC experience required
  • Multi Zone Capability: Supports up to three indoor air handlers
  • High Efficiency: Up to 23.9 SEER2 and 10 HSPF2-4 ratings
  • R 454B Refrigerant: Eco friendly refrigerant used in 5th Generation systems
  • Quick Connect Line Sets: Pre charged for faster installation (sold separately)
  • Smart Control: SmartHVAC app with Amazon Alexa and Google Assistant support
  • DIYPRO Cable Compatible: Eliminates the need for electrical conduit
  • Gold Fin Coating: Enhanced corrosion resistance for coastal environments
  • Certified Quality: Intertek listed for tested safety and performance

MRCOOL 6K BTU DIY 5th Gen Wall Mount Air Handler Mini Split Multi-Zone DIY-06-HP-WMAH-230D25-O x3

The MRCOOL DIY 5th Generation 6K BTU Ductless Heat Pump Mini Split Air Handler is designed for effortless installation and reliable year-round comfort. Perfect for spaces up to 200 sq. ft., this system requires no special tools or HVAC experience. Featuring MRCOOL’s innovative DIY QuickConnect technology and eco-friendly R-454B refrigerant, it delivers efficient heating and cooling with minimal installation time. Control your comfort easily using the wireless remote, SmartHVAC app, or hands-free voice commands via Amazon Alexa and Google Assistant.

Key Features:

  • 6,000 BTU Capacity: Ideal for heating and cooling areas up to 200 sq. ft.
  • DIY QuickConnect Technology: Pre-charged line sets eliminate vacuuming for faster installation (line set sold separately).
  • R-454B Refrigerant: Environmentally friendly refrigerant for improved efficiency.
  • DIYPRO Cable Included: No electrical conduit required for added durability.
  • Smart Control Options: Wireless remote, SmartHVAC app, and voice control.
  • Follow Me Function: Remote sensor adjusts airflow temperature for consistent comfort.
  • Dry Mode: Helps reduce indoor humidity.
  • Gold Fin Protection: Enhanced corrosion resistance.
  • Intertek Listed: Certified for safety and performance (5031495).

View More 3 Zone Mini Splits

Specifications

MRCOOL 18K BTU Mini Split Heat Pump Condenser DIY 5th Gen 3 Zone R454B DIY-MULTI3-18HP230D-O 

Brand MRCOOL SKU DIY-MULTI3-18HP230D-O
Cooling Capacity 18,000 BTU/h Heating Capacity 18,000 BTU/h
Tonnage 1.5 Ton Zone Capacity Up to 3 Zones
SEER2 23.9 EER2 13
HSPF2-4 10 HSPF2-5 7.8
Refrigerant Type R-454B Refrigerant Volume 61.73 oz
Voltage 208/230V Phase 1
Cycle 60 Hz Inverter Type DC Inverter
Max Fuse Breaker 20 A Min Circuit Ampacity 16 A
Decibel Rating 60 dBA Color White
Line Set Length 25 ft Max Line Set Length 172.2 ft
Liquid Line Size 1/4 in Suction Line Size 3/8 in
Compressor Motor Type Rotary Net Weight 101.63 lbs
Net Dimensions (WxHxD) 35.04 x 26.5 x 13.46 in Gross Weight 109 lbs
Replaces DIY-MULTI2-18HP230C UPC 840255587617

MRCOOL 6K BTU DIY 5th Gen Wall Mount Air Handler Mini Split Multi-Zone DIY-06-HP-WMAH-230D25-O x3

Brand MRCOOL SKU DIY-06-HP-WMAH-230D25-O
Cooling / Heating BTU 6,000 BTU Refrigerant R454B
Voltage 208/230V Phase 1
Cycle 60 Hz Mount Type Wall
Color White Max Coverage Area 200 sq. ft.
Oscillation Yes Filter Type Reusable
Net Dimensions (WxHxD) 31.57" x 11.69" x 7.44" Net Weight 24.47 lbs
Gross Dimensions (WxHxD) 36.02" x 14.37" x 16.34" Gross Weight 35.05 lbs
Warranty

MRCOOL 18K BTU Mini Split Heat Pump Condenser DIY 5th Gen 3 Zone R454B DIY-MULTI3-18HP230D-O 

Warranty Coverage
Parts 5 Years
Compressor 7 Years

MRCOOL 6K BTU DIY 5th Gen Wall Mount Air Handler Mini Split Multi-Zone DIY-06-HP-WMAH-230D25-O x3

Warranty Coverage
Parts 5 Years
Compressor 7 Years
Documents

MRCOOL 18K BTU Mini Split Heat Pump Condenser DIY 5th Gen 3 Zone R454B DIY-MULTI3-18HP230D-O 

Brochure

Installation Manual

Remote Manual

Service Manual

Warranty Document

MRCOOL 6K BTU DIY 5th Gen Wall Mount Air Handler Mini Split Multi-Zone DIY-06-HP-WMAH-230D25-O x3

Brochure

Product Catalog

Installation Manual

Remote Manual

Warranty Document

Shipping

We ship freight to the 48 contiguous states, excluding Hawaii and Alaska. Some shipping restrictions may apply. Liftgate services may incur an additional fee, which can be added at checkout.

Order Processing: Orders are processed within 1-3 business days (excluding weekends). Orders placed on Fridays will be processed the next business day. Once shipped, you’ll receive an email confirmation with tracking details. Backordered products may have longer processing times, and we will notify you of any delays.

Arrival of Goods: Freight delivery times depend on the carrier's schedule and routing. Estimated delivery times are provided at checkout. The carrier will contact you to arrange delivery, and you must be present to sign for the shipment.

Damages: Upon delivery, inspect your shipment carefully for any damage or discrepancies. Note any issues on the carrier’s delivery receipt and notify us within 24 hours. Claims made after this timeframe may be denied. Photographic proof is required for processing claims. Report damages or discrepancies immediately at [email protected].

Returns: For returns unrelated to damage, contact us at [email protected] for authorization. Return shipping costs are the customer’s responsibility, and a 20% restocking fee applies. Items must be in original packaging and condition for a refund.

Delivery Receipt: Before signing the delivery receipt, inspect the shipment for any damage. Your signature confirms acceptance of the delivery unless issues are noted.

Policy Updates: Our shipping policy may change, and updates will be communicated via our website or other channels. For any questions, contact The HVAC Store at [email protected] or call (833) 658-3387.

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Product Details

MRCOOL 18K BTU Mini Split Heat Pump Condenser DIY 5th Gen 3 Zone R454B DIY-MULTI3-18HP230D-O 

The MRCOOL DIY 5th Generation 18,000 BTU Multi Zone Mini Split Condenser is a powerful and flexible comfort solution designed to heat and cool up to three rooms with a combined coverage of approximately 750 square feet. Built for true DIY installation, this condenser eliminates the need for professional HVAC services, helping homeowners save both time and money.

With an impressive efficiency rating of up to 23.9 SEER2 and 10 HSPF2-4, this system delivers reliable year round performance while keeping energy costs low. The condenser supports up to three indoor air handlers, allowing customized temperature control in multiple zones. Installation is simplified through pre charged Quick Connect line sets filled with environmentally friendly R 454B refrigerant. These line sets are sold separately and remove the need for vacuuming or specialized tools.

Comfort control is fully customizable using the SmartHVAC app, which allows users to manage temperatures, schedules, and operating modes directly from a mobile device. Voice control compatibility with Amazon Alexa and Google Assistant adds hands free convenience. Built for durability, the Gold Fin condenser coating provides enhanced corrosion resistance, making it suitable for coastal and high humidity environments. Backed by industry leading warranties, this condenser delivers dependable performance and peace of mind.

Key Features

  • DIY Installation: Tool free, vacuum free installation with no HVAC experience required
  • Multi Zone Capability: Supports up to three indoor air handlers
  • High Efficiency: Up to 23.9 SEER2 and 10 HSPF2-4 ratings
  • R 454B Refrigerant: Eco friendly refrigerant used in 5th Generation systems
  • Quick Connect Line Sets: Pre charged for faster installation (sold separately)
  • Smart Control: SmartHVAC app with Amazon Alexa and Google Assistant support
  • DIYPRO Cable Compatible: Eliminates the need for electrical conduit
  • Gold Fin Coating: Enhanced corrosion resistance for coastal environments
  • Certified Quality: Intertek listed for tested safety and performance

MRCOOL 6K BTU DIY 5th Gen Wall Mount Air Handler Mini Split Multi-Zone DIY-06-HP-WMAH-230D25-O x3

The MRCOOL DIY 5th Generation 6K BTU Ductless Heat Pump Mini Split Air Handler is designed for effortless installation and reliable year-round comfort. Perfect for spaces up to 200 sq. ft., this system requires no special tools or HVAC experience. Featuring MRCOOL’s innovative DIY QuickConnect technology and eco-friendly R-454B refrigerant, it delivers efficient heating and cooling with minimal installation time. Control your comfort easily using the wireless remote, SmartHVAC app, or hands-free voice commands via Amazon Alexa and Google Assistant.

Key Features:

  • 6,000 BTU Capacity: Ideal for heating and cooling areas up to 200 sq. ft.
  • DIY QuickConnect Technology: Pre-charged line sets eliminate vacuuming for faster installation (line set sold separately).
  • R-454B Refrigerant: Environmentally friendly refrigerant for improved efficiency.
  • DIYPRO Cable Included: No electrical conduit required for added durability.
  • Smart Control Options: Wireless remote, SmartHVAC app, and voice control.
  • Follow Me Function: Remote sensor adjusts airflow temperature for consistent comfort.
  • Dry Mode: Helps reduce indoor humidity.
  • Gold Fin Protection: Enhanced corrosion resistance.
  • Intertek Listed: Certified for safety and performance (5031495).

View More 3 Zone Mini Splits

Specifications

MRCOOL 18K BTU Mini Split Heat Pump Condenser DIY 5th Gen 3 Zone R454B DIY-MULTI3-18HP230D-O 

Brand MRCOOL SKU DIY-MULTI3-18HP230D-O
Cooling Capacity 18,000 BTU/h Heating Capacity 18,000 BTU/h
Tonnage 1.5 Ton Zone Capacity Up to 3 Zones
SEER2 23.9 EER2 13
HSPF2-4 10 HSPF2-5 7.8
Refrigerant Type R-454B Refrigerant Volume 61.73 oz
Voltage 208/230V Phase 1
Cycle 60 Hz Inverter Type DC Inverter
Max Fuse Breaker 20 A Min Circuit Ampacity 16 A
Decibel Rating 60 dBA Color White
Line Set Length 25 ft Max Line Set Length 172.2 ft
Liquid Line Size 1/4 in Suction Line Size 3/8 in
Compressor Motor Type Rotary Net Weight 101.63 lbs
Net Dimensions (WxHxD) 35.04 x 26.5 x 13.46 in Gross Weight 109 lbs
Replaces DIY-MULTI2-18HP230C UPC 840255587617

MRCOOL 6K BTU DIY 5th Gen Wall Mount Air Handler Mini Split Multi-Zone DIY-06-HP-WMAH-230D25-O x3

Brand MRCOOL SKU DIY-06-HP-WMAH-230D25-O
Cooling / Heating BTU 6,000 BTU Refrigerant R454B
Voltage 208/230V Phase 1
Cycle 60 Hz Mount Type Wall
Color White Max Coverage Area 200 sq. ft.
Oscillation Yes Filter Type Reusable
Net Dimensions (WxHxD) 31.57" x 11.69" x 7.44" Net Weight 24.47 lbs
Gross Dimensions (WxHxD) 36.02" x 14.37" x 16.34" Gross Weight 35.05 lbs
Warranty

MRCOOL 18K BTU Mini Split Heat Pump Condenser DIY 5th Gen 3 Zone R454B DIY-MULTI3-18HP230D-O 

Warranty Coverage
Parts 5 Years
Compressor 7 Years

MRCOOL 6K BTU DIY 5th Gen Wall Mount Air Handler Mini Split Multi-Zone DIY-06-HP-WMAH-230D25-O x3

Warranty Coverage
Parts 5 Years
Compressor 7 Years
Documents

MRCOOL 18K BTU Mini Split Heat Pump Condenser DIY 5th Gen 3 Zone R454B DIY-MULTI3-18HP230D-O 

Brochure

Installation Manual

Remote Manual

Service Manual

Warranty Document

MRCOOL 6K BTU DIY 5th Gen Wall Mount Air Handler Mini Split Multi-Zone DIY-06-HP-WMAH-230D25-O x3

Brochure

Product Catalog

Installation Manual

Remote Manual

Warranty Document

Shipping

We ship freight to the 48 contiguous states, excluding Hawaii and Alaska. Some shipping restrictions may apply. Liftgate services may incur an additional fee, which can be added at checkout.

Order Processing: Orders are processed within 1-3 business days (excluding weekends). Orders placed on Fridays will be processed the next business day. Once shipped, you’ll receive an email confirmation with tracking details. Backordered products may have longer processing times, and we will notify you of any delays.

Arrival of Goods: Freight delivery times depend on the carrier's schedule and routing. Estimated delivery times are provided at checkout. The carrier will contact you to arrange delivery, and you must be present to sign for the shipment.

Damages: Upon delivery, inspect your shipment carefully for any damage or discrepancies. Note any issues on the carrier’s delivery receipt and notify us within 24 hours. Claims made after this timeframe may be denied. Photographic proof is required for processing claims. Report damages or discrepancies immediately at [email protected].

Returns: For returns unrelated to damage, contact us at [email protected] for authorization. Return shipping costs are the customer’s responsibility, and a 20% restocking fee applies. Items must be in original packaging and condition for a refund.

Delivery Receipt: Before signing the delivery receipt, inspect the shipment for any damage. Your signature confirms acceptance of the delivery unless issues are noted.

Policy Updates: Our shipping policy may change, and updates will be communicated via our website or other channels. For any questions, contact The HVAC Store at [email protected] or call (833) 658-3387.

Reviews