Quick answers to questions about ordering, compatibility, and installation.
Notify Me When Available
MRCOOL DIY 5th Gen Multi-Zone 6-Zone 55,000 BTU 22 SEER2 (12K + 12K + 12K + 12K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
Regular Price
$12,458.00
Press & drag to view
MRCOOL DIY 5th Gen 55,000 BTU 6-Zone Ceiling Cassette Mini-Split System | DIY-MULTI6-55HP230D-O
The MRCOOL DIY 5th Gen 55,000 BTU 6-Zone Ceiling Cassette Mini-Split is the largest-capacity DIY multi-zone system available. Pair the high-output condenser with your choice of low-profile ceiling cassette air handlers to heat and cool up to six individual zones with whisper-quiet performance, premium efficiency, and true DIY installation.
Mix and match 6K, 9K, 12K, and 18K cassette sizes for bedrooms, living areas, offices, shops, garages, or large open spaces. With up to 22 SEER2 cooling efficiency and HSPF2-4 10.6, this system delivers serious comfort while helping lower utility bills — even in extremes (heats to -13°F, cools to 122°F).
Key Features & Benefits
- ✔ 6 zones from a single 55K condenser for whole-home or multi-room comfort.
- ✔ Compatible with 6K / 9K / 12K / 18K ceiling cassette air handlers (flush-mount, low-profile).
- ✔ Up to 22 SEER2, HSPF2-4 10.6, HSPF2-5 8.5 for excellent efficiency.
- ✔ Quick-Connect® pre-charged line sets: no vacuum pump, no charging required (sold separately).
- ✔ DIYPro® cable included — eliminates electrical conduit for easier installs.
- ✔ Smart control with app, Alexa, and Google Assistant; Energy usage stats & scheduling.
- ✔ Gold Fin® anti-corrosion coating on the condenser for long life.
- ✔ Follow Me® remote tracks temp around you for pinpoint comfort.
- ✔ Energy Star, AHRI, ETL/UL listed for verified performance.
- ✔ Strong warranty: 5-yr parts, 7-yr compressor, and extended Limited Lifetime with MRCOOL® Care enrollment.
💡 Pro Tip: MRCOOL DIY ceiling cassettes include the WMK-19 Smart HVAC Wi-Fi Controller (plug-and-play). Connect it to your air handler, pair to Wi-Fi, and control the system via the MRCOOL or SmartHVAC apps — with built-in Alexa and Google voice support.
Technical Specifications
- Brand / Series: MRCOOL — DIY 5th Gen Multi-Zone Mini-Splits
- Model (Condenser): DIY-MULTI6-55HP230D-O
- Cooling / Heating Capacity: 47,000 BTU / 55,000 BTU
- Zones: Up to 6
- Efficiency: SEER2 22; EER2 12; HSPF2-4 10.6; HSPF2-5 8.5
- Refrigerant: R-454B (151.68 oz)
- Electrical: 208/230V, 1-Phase, 60 Hz; Min. Circuit Ampacity 43A; Max Fuse/Breaker 45A
- Sound Rating: 64 dBA
- Line Set Compatibility: 25 ft standard; max combined length 221.4 ft
- Line Sizes: Liquid 1/4"; Suction: (3/8" × 4) and (1/2" × 2)
- Inverter Compressor: DC Rotary
- Operating Range: Heat to −13°F; Cool to 122°F
- Certifications: Energy Star, AHRI, ETL/UL, Intertek Listed 5031495
- Smart Control: Wi-Fi, App, Alexa, Google Assistant (WMK-19)
- Color: White
- Condenser Dimensions (WxHxD): 37.48" × 52.48" × 16.34" (Net)
- Condenser Weight: 245.81 lbs (Net)
- Shipping Dimensions (WxHxD): 43.11" × 58.27" × 19.49" (Gross)
- Shipping Weight: 267.46 lbs (Gross)
- Warranty: 5-yr parts / 7-yr compressor; Extended Limited Lifetime with MRCOOL® Care (registration required)
- SKU / UPC / GTIN: DIY-MULTI6-55HP230D-O / 840255587488 / 840255587488
Note: Quick-Connect® pre-charged line sets and ceiling cassette air handlers are sold separately to build your ideal 6-zone package.
Why buy from MRCOOL DIY Direct? Genuine MRCOOL equipment, expert support, and nationwide delivery — perfect for DIYers who want pro-level results without pro-level labor costs.
FAQs About Our HVAC Products
Ordering & Compatibility
1. Do you sell HVAC equipment to homeowners and DIY installers?
Yes. Freedom HVAC Supply sells HVAC equipment and parts to contractors, property owners, and qualified DIY installers. Some products may require professional installation based on local codes.
2. How do I know if this HVAC product is compatible with my system?
Product pages include specifications and compatibility details. If you’re unsure, our team can help verify fit before you order.
3. Can HVAC contractors purchase from Freedom HVAC Supply?
Absolutely. We work with licensed HVAC contractors, installers, and professionals nationwide.
Installation & Support
1. Do HVAC systems require professional installation?
Some HVAC equipment must be installed by a licensed professional to meet code requirements or warranty terms. Always review manufacturer guidelines.
2. Can you help me choose the right HVAC system or part?
Yes. Our support team can assist with product selection based on your application, space, and installation needs.
3. Do you provide installation manuals or documentation?
Manufacturer installation guides and documentation are included or available upon request for most products.
Warranty & Shipping
1. Do HVAC products include a manufacturer warranty?
Most HVAC equipment includes a manufacturer warranty when installed according to guidelines. Warranty terms vary by brand and product.
2. Do you ship HVAC equipment nationwide?
Yes. We ship HVAC systems and parts throughout the continental United States using trusted freight and parcel carriers.
3. What should I know about freight delivery for HVAC equipment?
Larger HVAC equipment ships via freight and should be inspected upon delivery. Delivery details are provided during checkout.
Need HVAC Help?
Get help with ordering, compatibility, or installation questions.
Recently viewed
Last seen items
