MRCOOL® 55K DIY 5th Generation 6 Zone Multi-Zone Mini-Split Condenser 230v
Regular price $3,809.00
$3,809.00
Sale price
Regular price

MODEL: DIY-MULTI6-55HP230D-O

Whole-Home Climate Control for Up to 2,290 sq. ft. 

The MRCOOL® 55K DIY® 5th Generation Multi-Zone Mini-Split Condenser is the ultimate home comfort solution for larger properties or multi-room spaces. This powerful, energy-efficient system can heat and cool up to 6 separate zones covering a combined area of up to 2,290 sq. ft. — all without professional installation.

Featuring a SEER2 rating of 22 and an impressive HSPF2-4 of 10.6, it delivers reliable, eco-friendly performance while lowering utility costs. The patented Quick Connect® pre-charged line sets filled with R-454B refrigerant make installation a simple, clean, and fast DIY project with no need for special tools or refrigerant handling. (Line sets sold separately.)

Connect it to the SmartHVAC® app for complete control via your smartphone or voice commands through Amazon Alexa and Google Assistant. Set schedules, adjust temperatures, monitor energy usage, and customize modes from anywhere.

Backed by a leading warranty, including a Limited Lifetime Compressor Warranty (with registration), the MRCOOL® 55K DIY® system ensures lasting comfort, convenience, and peace of mind for your entire home.

Why You’ll Love It

Heats & Cools Up to 6 Separate Zones — Ideal for large homes or multi-room setups

100% DIY-Friendly — Quick Connect® pre-charged line sets for tool-free installation

High-Efficiency Performance — SEER2 22 and HSPF2-4 10.6 for outstanding savings

Smart Home Ready — Control via SmartHVAC® app, Alexa, or Google Assistant

Follow Me® Remote — Adjusts temperature to your exact location

Quiet Rotary DC Inverter Compressor — Smooth, energy-efficient operation at just 64 dBA

Eco-Conscious Refrigerant — R-454B for reduced environmental impact

Outstanding Warranty — Limited Lifetime Compressor (with registration), 7-Year Compressor, 5-Year Parts

What You Need for a Complete System

To complete your installation, pair this condenser with:

  • MRCOOL® DIY® 5th Gen Multi-Zone Air Handlers (up to 6 total)

  • MRCOOL® Quick Connect® Pre-Charged Line Sets (available in various lengths)

  • DIYPro™ Communication Cables (25ft included with each air handler)

Optional Accessories:

  • MRCOOL® Wall Mount Brackets

  • Additional Quick Connect® Line Sets

  • Coupler Kits for longer runs

This condenser is compatible only with MRCOOL® DIY® 5th Gen Multi-Zone Air Handlers.

Questions, answered

Everything homeowners ask before buying a MRCOOL® system.

Installation

What installation requirements apply to this product?

Installation requirements vary by product type. Selected complete MRCOOL® DIY systems are designed for homeowner installation when fitted in line with the manufacturer’s instructions, local codes and permit requirements.

Central HVAC systems, including Universal®, VersaPro®, Central Ducted Hyper Heat and packaged systems, are intended for professional installation by a qualified HVAC contractor. Licensed electrical work may also be required.

Components, thermostats, controls, line sets and accessories should be installed according to their product documentation and compatibility requirements. Always review the product page, manufacturer guidance and warranty conditions before installation.

Will I need any additional parts, tools or professional services?

Additional requirements vary by product and installation. Tools, electrical materials, mounting hardware, connecting components or other installation supplies may be required unless specifically stated as included.

Review the product description, specifications, installation information and What’s Included section, where available, before ordering.

Where can I find product documents or installation instructions?

Available specifications, installation instructions, owner’s manuals and manufacturer documents are provided on the product page where applicable.

Some simple accessories may not have a separate installation manual. Contact our team if you need help locating documentation for a particular product or model.

Sizing & Compatibility

How do I confirm this product is compatible with my equipment?

Review the product type, model number, dimensions, voltage, capacity, refrigerant type, connection sizes and compatibility information shown on the product page, where applicable.

Components, thermostats, controls and accessories must be matched to compatible equipment. Contact our team before ordering if you are uncertain about compatibility.

What should I check before ordering?

Confirm the product name and model number, together with any relevant dimensions, voltage, capacity, refrigerant type, connections and installation requirements.

For replacement components and accessories, compare the product specifications with your existing equipment and the relevant manufacturer documentation before placing your order.

What is included with this product?

The supplied items are listed in the What’s Included section or product description, where applicable. Only the products, components and accessories specifically stated are included.

Electrical materials, mounting equipment, connecting components or other installation supplies may need to be purchased separately unless expressly stated otherwise.

Warranty & Support

What warranty coverage applies to this product?

Warranty coverage varies by product and model. Eligible MRCOOL® products are covered according to the manufacturer’s warranty terms, registration requirements and installation conditions.

Accessories and individual components may have different coverage. Cool Heat Direct can provide available warranty documentation and general guidance, while warranty eligibility and claim decisions are determined by the manufacturer.

How can I get help before ordering?

Email support@coolheatdirect.com with the product name or model number and details about your project or existing equipment.

For compatibility questions, include the model numbers of any products you intend to connect, control, replace or use together.

Support hours: Monday–Friday, 9 AM–6 PM ET.

Shipping & Returns

How will my order be shipped?

Free standard shipping is available on eligible orders to the Lower 48 states and Washington, D.C.

Orders are generally processed within 3–5 business days, followed by approximately 5–12 business days in transit. Delivery timing varies by product availability, destination and carrier scheduling.

Smaller products may ship by parcel carrier. Larger equipment may be delivered curbside by freight carrier. The carrier may contact you to arrange a delivery appointment.

Can I return this product?

Return requests may be submitted within 30 calendar days of delivery. Products must be new, unused and uninstalled and, where applicable, unpowered. They must also be complete and in their original manufacturer packaging. Prior written authorization is required.

For approved change-of-mind returns, incorrect sizing or customer ordering errors, the customer is responsible for return freight and a 15% restocking fee applies.

Verified damaged, defective, incorrect or incomplete orders are handled separately under our full policy.

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  • MRCOOL® Systems
  • DIY-Friendly Options
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MRCOOL® Systems
DIY-Friendly Options
Free Lower 48 Shipping
Secure Checkout
Product Sizing Help