Brand New｜MRCOOL® 48K 5th Gen DIY® Multi-Zone Bundle With (18K + 18k) Air Handlers & (25ft + 25ft) Pre-Charged R-454B Line Sets, (230V)-DIYM248HPW05D06

Product Description 
Model: DIYM248HPW05D06   
The Ultimate DIY Heating & Cooling System for Two Large Rooms
The MRCOOL DIYM248HPW05D06 is built for homeowners who want serious output across larger zones — without paying for HVAC labor. Backed by MRCOOL’s flagship 48K DIY double-stack condenser, this bundle delivers the power, efficiency, and flexibility normally reserved for contractor-grade equipment.
This configuration is ideal for homes with two oversized spaces that demand more airflow and stronger heating/cooling performance. With dual 18K air handlers, you get reliable comfort for rooms such as:

Large master suites
Full basements
Great rooms
Open living/dining areas
Bonus rooms
Workshops or garages
High-ceiling spaces

And because this bundle includes two 25-foot Quick-Connect line sets, you can reach farther installation distances while keeping everything completely DIY-friendly.
 
48K DIY Double-Stack Condenser — The Strongest in the MRCOOL Lineup
Your bundle features the heavy-duty DIY-MULTI6-48HP230DP-O, engineered for up to six zones and built to handle mixed-capacity indoor units with ease.

Key Performance Features

21.8 SEER2 efficiency
R-454B refrigerant (new eco-forward upgrade)
Powerful heating & cooling for up to 2,000 sq. ft.
Ultra-quiet inverter compressor
Gold Fin® anti-corrosion protection
SmartHVAC™ WiFi control (iOS, Android, Alexa, Google Home)
Smooth ramping, fewer temperature swings, lower energy use

If you want the highest-output DIY condenser available today, this is the one.
 
Two 18K Indoor Units — Maximum Comfort for Bigger Rooms
Each DIY-18-HP-WMAH-230D25-O provides dependable heating and cooling for 700–800 sq. ft., making them the perfect match for demanding rooms.
Benefits of the 18K Units:

Ultra-quiet airflow
Follow-Me® temperature sensing
Multi-speed fan control
Dry Mode humidity management
Smooth inverter performance
R-454B system compatibility
Full WiFi smart control

Whether you’re conditioning a large master bedroom, open living space, downstairs area, or workshop, these units deliver reliable, even comfort year-round.
 
Includes Two 25ft Line Sets — Extended Distance, Still DIY Easy
You get two (2) DIY25-1412-O line sets:

25ft length for flexible installation
Pre-charged with R-454B refrigerant
Factory vacuum-sealed
No gauges, pumps, or professional tools
Quick-Connect fittings
Includes DIYPro® communication wire

These longer line sets expand installation options significantly while keeping the connection process simple and safe.
 
Correct Electrical Specs — For the 48K condenser (DIY-MULTI6-48HP230D-O):

Maximum Breaker: 45A
Minimum Circuit Ampacity: 40A

 
WHAT’S INCLUDED — DIYM248HPW05D06
Outdoor Unit

(1) × DIY-MULTI6-48HP230D-O 48K 6-zone condenser

Indoor Units

(2) × DIY-18-HP-WMAH-230D25-O 18K wall-mounted air handlers

Line Sets

(2) × DIY25-1412-O 25ft 1/4 × 1/2 pre-charged line sets

Accessories

Remote controls
SmartHVAC integration module
Mounting hardware
Wall sleeves & drain extensions
DIYPro® cables
Install guides

 
FAQ —  frequently Asked Questions 
Can this system heat reliably in cold climates?
Yes — the 48K condenser provides strong low-temperature heat when properly sized.
Can I expand to more zones later?
Yes, the condenser supports up to six zones, so you can add more indoor units anytime.
Do the 25ft line sets include communication wire?
Yes — DIYPro® cable comes pre-packed with each 25ft set.
How big of a room will each 18K unit cover?
Typically 700–800 sq. ft., depending on insulation and layout.
Is installation truly DIY?
Yes — no HVAC tech needed. Everything is pre-charged and vacuum-sealed from the factory.
 
Why Buy From MRCOOL DIRECT?
When you order from MRCOOL Direct, you get:

Authorized MRCOOL dealer – Your warranty is protected
Factory-fresh units – No refurbished or mystery sources
Fast U.S. shipping – Most in-stock items ship in 1–3 business days
Financing options – Make high-efficiency comfort more affordable
Real product support – Help with sizing, line set selection, and DIY questions
No third-party marketplace middlemen – Just genuine MRCOOL systems from a trusted dealer

BUY DIRECT!
Feel Free to call us anytime. Family Friendly help just a dial away. We love talking HVAC615-553-8118
Family owned & USAs #1 MRCOOL Authentication Dealer.
 
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