MRCOOL 27k 4‑Zone DIY Multi‑Zone Bundle (12k + 12k Wall Mounts, Dual 25 ft R‑454B Line Sets, 230V) — DIYM227HPW04D06

MRCOOL 27k 4‑Zone DIY Multi‑Zone Bundle (12k + 12k Wall Mounts, Dual 25 ft R‑454B Line Sets, 230V) — DIYM227HPW04D06

Take your home comfort into your own hands with the MRCOOL 27k 4‑Zone DIY Multi‑Zone Bundle — DIYM227HPW04D06. This powerful ductless HVAC system is engineered to deliver efficient heating and cooling across multiple rooms while eliminating the need for professional installation. Designed around MRCOOL’s 5th Generation technology, this mini‑split bundle is perfect for homeowners who want a customizable climate solution without the hassle of traditional systems. With up to 23 SEER2 efficiency and smart features, you’ll enjoy reliable comfort and energy savings all year long.

At the heart of this system is the 27,000 BTU DIY‑MULTI4‑27HP230D‑O outdoor condenser, capable of supporting up to four indoor units — giving you room to expand your comfort footprint as your needs change. The included two 12,000 BTU wall‑mount air handlers are ideal for medium‑sized rooms up to around 550 sq ft each, delivering consistent temperature control with quiet operation.

Installation is truly DIY‑friendly thanks to MRCOOL’s patented QuickConnect® pre‑charged line sets. These 25 ft R‑454B refrigerant line sets eliminate the need for vacuum pumps or refrigerant handling, making setup as simple as connecting and tightening. Whether upgrading a living space, bedroom, or home office, this system balances performance with simplicity.

Control your comfort with ease using the included wireless remotes or MRCOOL’s SmartHVAC® app on iOS and Android. With voice compatibility for Amazon Alexa and Google Assistant, you can adjust settings with a tap or voice command. The follow‑me feature ensures the temperature is measured where it matters most — right where you are.

Features

• True DIY installation with pre‑charged QuickConnect® R‑454B line sets — no vacuum pump, gauges, or refrigerant handling required.

• Dual 12k BTU wall‑mount air handlers — perfect for medium rooms up to ~550 sq ft each.

• High efficiency performance with up to 23 SEER2 and 9.5 HSPF2‑4 ratings.

• Expandable outdoor condenser supports up to 4 indoor units total (2 included).

• SmartHVAC® app compatibility plus Amazon Alexa & Google Assistant voice control.

• Follow‑Me® temperature sensing feature for personalized comfort.

Specifications

What’s Included

• (1) DIY-MULTI4-27HP230D-O – 27k BTU 4-Zone Multi-Zone Outdoor Condenser (230V, R-454B)
• (2) DIY-12-HP-WMAH-230D25-O – 12k BTU DIY 5th Gen Wall-Mount Air Handlers (up to 550 sq. ft. each)
• (2) DIY25-1438-O – 25 ft Pre-Charged R-454B QuickConnect® Line Sets (1/4” x 3/8”)
• Wireless remotes for each 12k indoor unit
• DIYPRO® cable and install hardware as supplied by MRCOOL®
• Manufacturer installation manuals and warranty documentation

Frequently Asked Questions (FAQ's)

Q: How many rooms can this bundle handle?

A: Out of the box, DIYM227HPW04D06 is designed for two zones, each with a 12k BTU wall-mount air handler—ideal for two rooms up to ~550 sq. ft. each. The condenser can support up to four indoor units, so you can expand later.

Q: What breaker size do I need?

A: The DIY-MULTI4-27HP230D-O condenser calls for a maximum 25A fuse/breaker and 23A MCA. Always have a licensed electrician size the breaker and wire per local code.

Q: Are the line sets pre-charged for DIY install?

A: Yes. Both DIY25-1438-O line sets are factory pre-charged with R-454B and use QuickConnect® fittings. No vacuum pump or handling refrigerant is required.

Q: Can I add more indoor units in the future?

A: Yes. This 27k multi-zone condenser supports up to four indoor units total. This bundle uses two 12k wall mounts, leaving two ports/BTU capacity for additional MRCOOL® DIY indoor units (within MRCOOL’s sizing guidelines).

Q: Is this good for bedrooms or living areas?

A: Perfect. The 12k DIY 5th Gen wall mounts are a sweet spot for medium bedrooms, offices, family rooms, bonus rooms, or small apartments. Each zone has independent temperature control and quiet operation.