• MRCOOL 4th Gen DIY Multi-Zone condenser unit with R-410A refrigerant – supports multiple indoor zones and features pre-charged line set compatibility for easy installation.
  • Front view of MRCOOL 5th Gen DIY multi-zone condenser for 6-zone systems – R-454B refrigerant, ENERGY STAR® certified, DIY-friendly HVAC solution.
  • MRCOOL 5th Gen DIY Multi-Zone condenser with R-454B refrigerant – ENERGY STAR® rated for ultra-efficient heating and cooling, designed for 2 to 6 zones with DIY installation support.
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NEW R-454B Refrigerant

MRCOOL DIY® 5th Gen 48,000 BTU Multi-Zone Mini Split Condenser 230V, DIY-MULTI6-48HP230D-O

MRCOOL DIY® 5th Gen 48,000 BTU Multi-Zone Mini Split Condenser 230V, DIY-MULTI6-48HP230D-O

$3,228.00 USD
$3,969.99 USD $3,228.00 USD
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Choose your Pre-Charged line set Length:

Total Price: $3,228.00

🔀 Up to 6 Zones
🛠️ DIY Install Ready
🏠 Whole-Home Zoning

SKUDIY-MULTI6-48HP230D-O

TypeMulti-Zone Condenser

We’re nearly caught up on pre-orders! All systems are in stock, but please allow up to 2 weeks for shipping and tracking info as we finish fulfilling early orders.
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PRODUCT DESCRIPTION

MRCOOL® DIY 5th Gen 48,000 BTU 6-Zone Multi-Zone Mini Split Condenser – 230V

Model: DIY-MULTI6-48HP230D-O

Discover maximum comfort and total zone flexibility with the MRCOOL® DIY 5th Gen 48,000 BTU Multi-Zone Mini Split Condenser. Built for simple, fast DIY installation, this high-capacity 230V system supports up to six independent zones and a total connected capacity of up to 54,000 BTU. Ideal for larger homes, office spaces, or mixed-use buildings. Requires a minimum of 2 connected air handlers and is pre-charged with environmentally responsible R-454B refrigerant.

Key Features

  • DIY-Friendly Installation: Quick Connect® line sets pre-charged with R-454B make installation easy—no vacuum pump needed
  • Smart Controls: Compatible with SmartHVAC App, Amazon Alexa & Google Assistant for wireless comfort management
  • Low-GWP Refrigerant: R-454B helps reduce environmental impact while enhancing system efficiency
  • Gold Fin® Coating: Anti-corrosive treatment resists rust and coastal wear
  • DIYPRO® Cable: Armored communication wire is UV and weather resistant—no conduit required
  • Reliable Warranty: 7-Year compressor, 5-Year parts, and optional Limited Lifetime Replacement with MRCOOL® Care Program

System Specs

  • Cooling Capacity: 48,000 BTU/h
  • Heating Capacity: 50,000 BTU/h
  • SEER2: Up to 21.5 (depends on connected air handlers)
  • HSPF2-4: ~10.3 | HSPF2-5: ~8.2
  • Power Supply: 208–230V, 60Hz, 1 Phase
  • Minimum Circuit Ampacity: 30 A
  • Maximum Fuse: 35 A
  • Refrigerant Type: R-454B (Charge: ~147 oz)
  • Line Set Sizes: 3/8" Liquid x 5/8" Gas
  • Recommended Coverage: 1,800 – 2,400 sq. ft. (based on configuration and zone efficiency)

Compatible Air Handler Combinations (Max 54,000 BTU)

This condenser supports a wide mix of MRCOOL 5th Gen 6K, 9K, 12K, 18K, 24K, and 36K air handlers. Minimum of 2 air handlers must be connected. Total combined capacity must not exceed 54,000 BTU.

Example combinations:

  • 12K + 12K + 12K + 12K + 6K = 54K
  • 18K + 12K + 9K + 9K + 6K = 54K
  • 24K + 18K + 12K = 54K
  • 36K + 12K + 6K = 54K

Recommended Wire Size

  • Recommended: 8 AWG copper wire – supports 30A MCA and 35A max fuse
  • One Size Smaller (10 AWG): May run hot under load and is not code-compliant at this amperage—avoid use
  • One Size Larger (6 AWG): Best for long runs—minimizes voltage drop and increases safety margin

Note: These units are pre-charged with R-454B and are not compatible with earlier R-410A systems. Always confirm your air handler configuration before purchase. Specifications subject to change.

Trust MRCOOL DIY Direct – your nationwide source for genuine MRCOOL® equipment and expert support.

SPECIFICATION & DIMENSIONS
Specification Details
Model Number DIY-MULTI6-48HP230D-O
Cooling Capacity 48,000 BTU/h
Heating Capacity 48,000 BTU/h
Recommended Coverage Area 2,000 – 2,500 sq. ft.
SEER2 (Estimated) 17.5 – 18.5 (depending on configuration)
HSPF2-4 (Estimated) 8.5 – 9.0
HSPF2-5 (Estimated) 6.5 – 7.5
Power Supply 208–230V, 60Hz, 1 Phase
Minimum Circuit Ampacity 44 – 48 A (est.)
Maximum Fuse 50 A (est.)
Refrigerant Type R-454B
Refrigerant Charge ~115 oz (est.)
Line Set Sizes 3/8" Liquid x 5/8" Gas
Net Dimensions (WxDxH) Approx. 42.91" x 19.88" x 37.01"
Net Weight Approx. 175 – 185 lbs
Recommended Wire Size 6 AWG (recommended for 44–48A load)
One Size Smaller (Risk) 8 AWG – May overheat or be out of code on long runs
One Size Larger (Benefit) 4 AWG – Ideal for long-distance runs and reduced voltage drop

Customer Reviews

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C
Cyndee Farley
DIY SO EASY SO COOL

Only bought I tool 3.5" hole saw. Everything else is is in order. Measure area width before purchase though. 18k is larger than the 9k. Had to change locations for it. If not sure. Call them. We have had no air since July. 100+ temps for months. Now I have a blanket on my feet with it set at 73. Will add 2 more downstairs next spring.