MRCOOL - DIY 5th Generation- 55,000 BTU 6-Zone Ductless Mini Split AC and Heat Pump with Ceiling Cassettes - SEER 22 (12K + 12K + 12K + 12K + 12K + 12K) - 230V

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MRCOOL - DIY 5th Generation- 55,000 BTU 6-Zone Ductless Mini Split AC and Heat Pump with Ceiling Cassettes - SEER 22 (12K + 12K + 12K + 12K + 12K + 12K) - 230V

Name: MRCOOL - DIY 5th Generation- 55,000 BTU 6-Zone Ductless Mini Split AC and Heat Pump with Ceiling Cassettes - SEER 22 (12K + 12K + 12K + 12K + 12K + 12K) - 230V
Brand: MRCOOL
SKU: DIYM655121212121212-CC
Price: 12335.0 USD
Availability: InStock

by MRCOOL

SKU DIYM655121212121212-CC

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$12,335.00

Quantity

The MRCOOL DIY 5th Gen 55,000 BTU 6-Zone Mini-Split with ceiling cassettes (12K + 12K + 12K + 12K + 12K + 12K) heats and cools six rooms efficiently. Each 12K BTU zone provides precise comfort, ideal for bedrooms, living rooms, offices, or open spaces. The 55,000 BTU condenser powers all zones, delivering balanced temperatures while saving energy. This ductless heat pump system reverses to pull heat from outdoors during winter, cutting heating costs. Ceiling cassettes are low-profile and recessed between standard 16-inch joists, keeping walls free and providing a clean, modern look. The DIY setup uses Quick Connect pre-charged line sets, requiring no special tools or professional installation, saving thousands on setup. Multiple operating modes and quiet performance ensure comfort without noise. The Elevation function lowers the filter panel for easy cleaning, making maintenance simple. Flexible placement requires no ductwork, perfect for retrofits or new construction. With a 7-year compressor warranty, optional lifetime coverage, and a 5-year parts warranty, this system combines convenience, energy efficiency, and reliable climate control for whole-home comfort. It’s a smart choice for homeowners who want customizable, powerful heating and cooling in one easy-to-install package.

Features

Includes six indoor zones with a single 55K condenser
Compatible with 6K, 9K, 12K, and 18K ceiling cassette units
21.5 SEER2 energy efficiency for lower utility bills
Ideal for large homes, offices, shops, or multi-room spaces
Flush-mounted ceiling cassettes blend seamlessly into any décor
DIY installation with included quick-connect fittings
Operates in extreme temperatures: heats to -13°F, cools to 122°F
App, Alexa, and Google Assistant smart control integration
Corrosion-resistant Gold Fin® condenser coating
Backed by 5-year parts and 7-year compressor warranty

Specifications

BRAND NAME	MRCOOL
SERIES	DIY 5th gen Multi-Zone Mini-splits
MODEL	DIY-MULTI6-55HP230D-O
GTIN	840255587488
UPC	840255587488
SEER2	22
EER2	12
HSPF2-4	10.6
HSPF2-5	8.5
TONNAGE	4.6
COOLING CAPACITY (BTU)	47000
HEATING CAPACITY (BTU)	55000
VOLTAGE (V)	208/230
PHASE	1
CYCLE	60
MAX FUSE BREAKER (A)	45
MIN CIRCUIT AMPACITY (A)	43
COLOR	White
ZONE CAPACITY	6
REFRIGERANT TYPE	R-454B
REFRIGERANT VOLUME (OZ)	151.68
DECIBEL RATING (DBA)	64
INVERTER	DC
LINE SET LENGTH	25
MAX LINESET LENGTH (FT)	221.4
LIQUID LINE SIZE	1/4
SUCTION LINE SIZE	(3/8 X4) (1/2 X2)
COMPRESSOR MOTOR TYPE	Rotary
AUXILIARY HEATER INCLUDED	No
AUXILIARY HEATER AVAILABLE	No
FAN ONLY OPTION	Yes
QUIET MODE	Yes
AUTO COOL	Yes
WIFI COMPATIBILITY	Yes
APP COMPATIBILITY	Yes
WORKS WITH IOS	Yes
WORKS WITH ANDROID	Yes
UL LISTED	Yes
ETL LISTED	Yes
ENERGY STAR CERTIFIED	Yes
AHRI CERTIFIED	Yes
REGISTERED WARRANTY	Extended Limited Lifetime*
BASE PARTS WARRANTY	5
BASE COMPRESSOR WARRANTY	7
HAS BATTERIES	Yes
CONTAINS ELECTRONICS	Yes
CONTAINS CHEMICALS	Yes
CONTAINS AEROSOL	Yes
CONTAINS COMPRESSED GAS	Yes
PROPOSITION 65 WARNING	Yes
NET DEPTH (IN)	16.34
NET HEIGHT (IN)	52.48
NET WIDTH (IN)	37.48
NET WEIGHT (LBS)	245.81
GROSS DEPTH (IN)	19.49
GROSS HEIGHT (IN)	58.27
GROSS WIDTH (IN)	43.11
GROSS WEIGHT (LBS)	267.46

Owner's Manual

All MRCOOL non DIY products are to be installed in accordance with the manufacturer's installation methods and recommendations by a licensed HVAC-R/electrical/plumbing technician, as required. Failure to do so, may result in voiding the manufacturer's warranty.”

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Questions? Give us a call today at (807) 606-9202

Let customers speak for us

from 2322 reviews

Super responsive - great pricing - easy!!! No

Super responsive - great pricing - easy!!! No brainer!

Ray

Klondike AC & Heating

06/18/2026

Great experience.

Excellent pricing, fast shipping, great communication. I highly recommend Klondike AC

Bob Warne

Klondike AC & Heating

04/19/2026

This unit is great!

This unit is great. Arrived in very heavy packaging upon a pallet. Everything intact. Setup was straight forward. Love the easy to use app.Unit came right up without any problems. Very happy and highly recommend.

Bob Warne

MRCOOL - DIY 5th Generation Easy Pro - 1.5 Ton / 18,000 BTU Ductless Mini Split Air Conditioner & Heat Pump - 20 SEER2 - R454B - 230V

04/19/2026

Bricks arrived very well packed

Bricks arrived very well packed, so all went well, after a lengthy delay from backorder at distributor warehouse. Follow up from Klondike was reassuring. Good customer service.

Anonymous

Drolet - 4" x 8" x 1 1/4" Refractory Brick 9 Units

11/14/2025

Very efficient and surprisingly quiet

Our installer said it was well-designed. We’re very satisfied with the results.

Michael Johnson

Goodman - 3.0 Tons/36,000 BTU Air Conditioner Condenser- SEER2 17.2 - Two Stage - 208V

09/08/2025

Reliable performance and great customer care

This product is exactly what we needed. Efficient, durable, and worth the price.

Samuel Kim

Goodman - 2.5 Ton/30,000 BTU Air Conditioner Condenser - SEER2 15.2 - Single Stage - R32

09/05/2025

Great value for money and easy to maintain

Very happy with this unit. Noticed an immediate difference in cooling and lower energy bills.

Grace Williams

Goodman - 4 Ton/48,000 BTU Air Conditioner Condenser - SEER2 13.4 - Single Stage - R32

09/02/2025

Quiet Operation, Great Comfort

Very happy with this purchase. The team at Klondike AC made the process simple and stress-free.

Matthew Moreno

Goodman - 4 Ton/60,000 BTU Gas Packaged Unit - 13.4 SEER2 - Single Stage - R32 - 230V

08/30/2025

Smooth Installation Experience

Super smooth experience from start to finish. Josh answered all our questions and made sure delivery was easy.

Edward Wilkins

Daikin - 5 Ton/58,000 BTU Commercial Packaged Heat Pump - 13.4 SEER2 - Single Stage - 208/230V - R32

08/30/2025

Energy Bills Already Lower

This unit has been excellent. Runs quietly and keeps our home comfortable. Huge thanks to Maggie at Klondike AC.

Krista Johnson

Goodman - 2.5 Tons/40000 BTU Packaged Gas/Electric Central Air System - SEER2 13.4 - Single Stage - 208V

08/30/2025

Josh Helped Us Pick the Right Model

Energy bills already dropped since installing this unit. It’s efficient and reliable. Thank you Klondike AC.

Anne Smith

Daikin - 7.5 Ton/86,000 BTU Packaged AC - SEER 14 - Single Stage - 208V

08/30/2025

Impressed with the Quality

The Klondike AC team impressed us with great service. Installation was straightforward and performance is better than expected.

Melissa Hart

Daikin - 20 Ton/230,000 BTU Packaged AC - SEER 14 - Single Stage - 208V

08/30/2025

Cools and Heats Better Than Expected

Super smooth experience from start to finish. Josh answered all our questions and made sure delivery was easy.

Kelly Foley

Daikin - 6 Ton/69,000 BTU Light Commercial Packaged Air Conditioner - 13.4 SEER2 - Single Stage - 460V - R32

08/29/2025

Perfect Size for Our Office

The Klondike AC team impressed us with great service. Installation was straightforward and performance is better than expected.

Keith Ray

Daikin - 10 Ton/116,000 BTU Commercial Packaged Air Conditioner - 14 EER - Single Stage - 460V - R32

08/29/2025

Energy Bills Already Lower

Very happy with this purchase. The team at Klondike AC made the process simple and stress-free.

Andrea Baker

Goodman - 2.0 Tons/40,000 BTU Ultra Low NOx Packaged Gas/Electric Central Air System - SEER2 13.4 - Single Stage - 208V

08/28/2025

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2322

Josh a true testament to customer service

I ordered a MR Cool DIY 4th gen 18k btu DIY mini split from Josh. Josh made every accommodation that I needed from the beginning of the order process till the end. I will try to make this review as short as possible but when my order first arrives it looked like someone took the compressor and used it as a football. Josh made sure to have that picked up and returned promptly for a replacement. That process was made extremely easy and painless by Josh.
Then came installation day!! I installed a multi zone mr cool a few weeks prior to installing this 18k btu unit. So this wasn't my first rodeo installing a mr cool mini split.

After hanging the air handler in my home it was time to connect the lineset. I did so to the torque specs provided in the manual with my hvac torque wrench then promptly checked my connection with my hvac freon detector and the soap bubble test as well. To my horror that connection was leaking pretty good. I instantly contacted Josh on that Sunday afternoon and was pleasantly surprised when he called me on a Sunday to see what the issue was. I sent him some pics and explained the leak situation. Josh immediately that Monday morning went into action. He started communications with Mr Cool. Josh copied me in on the emails as well to keep me informed and in the loop.

Mr Cool tried diligently to drag their feet through the replacement process. Josh was not going to allow for that and kept on them to see this situation resolved quickly which was great because we were in the middle of a stretch of winter frigid weather. I have since received my replacement and I firmly believe this was only because of Josh's extreme hard work and perservance. I will only do business with Klondike ac because of this superb experience with Josh. He has won a life long customer with me. I will be sharing this experience and recommending Klondike ac and in particular Josh to all of my family, friends, and colleagues and **** even people I don't know. Thank you Josh, you sir have made me believe that even in our current lack of customer service world that we live in that there still are the rare occassions where someone not only believes in excellent customer service but also believes in treating a customer like family.

Fantastic service from Josh!

Ordering from Josh was an absolute breeze! He was professional attentive, and made the entire process seamless. Josh went above and beyond to ensure everything was handled, perfectly with great communication and attention to detail.

I am incredibly impressed and will definitely be ordering from him again. Highly recommend his amazing service! 5/5 stars!⭐️

Awesome!

These guys are super helpful. Would be back in a heartbeat!