MRCOOL® DIY® 5th Gen 48,000 BTU Hybrid Mini Split System (36K Ducted + 12K Wall) – 21.8 SEER2 – Model DIYM48K-HYB-36D-12W

Product Description 
 
The MRCOOL® DIYM48K-HYB-36D-12W Hybrid Mini Split System is a powerful, high-efficiency heating and cooling solution designed for homeowners who want whole-home comfort, flexible zoning, and professional-grade performance—without paying for professional HVAC installation.
 
This custom hybrid system pairs the MRCOOL® DIY® 5th Generation 48,000 BTU multi-zone condenser with a 36,000 BTU ducted DIY Hybrid™ air handler and a 12,000 BTU wall-mounted air handler. This configuration allows you to condition large open areas through ductwork while independently controlling a separate room such as a master bedroom, office, bonus room, or addition.
 
Installation is dramatically simplified using MRCOOL®’s patented DIY® QuickConnect® technology, which eliminates the need for vacuum pumps, refrigerant gauges, or licensed HVAC technicians. All compatible line sets are pre-charged with R-454B refrigerant, a next-generation, low-GWP refrigerant that improves efficiency while reducing environmental impact. The included DIYPRO® cable removes the need for electrical conduit, speeding up installation and improving long-term durability.
 
With DC inverter technology, Gold Fin® corrosion protection, and full smart home integration, this hybrid system delivers quiet operation, lower energy bills, and dependable year-round comfort.
 
KEY FEATURES & PERFORMANCE HIGHLIGHTS

48,000 BTU total system capacity
Hybrid ducted + ductless configuration
(1) 36K DIY Hybrid™ ducted air handler
(1) 12K wall-mounted air handler
21.8 SEER2 high-efficiency rating
DC inverter variable-speed compressor
DIY® QuickConnect® pre-charged line-set compatibility
R-454B eco-friendly refrigerant
DIYPRO® cable (no conduit required)
Gold Fin® anti-corrosion coil protection
Follow Me® temperature sensing
MRCOOL® Smart HVAC Controller® App
Amazon Alexa® & Google Home® compatibility
ENERGY STAR® & AHRI certified

 
ELECTRICAL REQUIREMENTS
Outdoor Condenser – DIY-MULTI6-48HP230D-O

Voltage: 208 / 230V
Phase: Single-Phase
Frequency: 60 Hz
Minimum Circuit Ampacity (MCA): 40 Amps
Maximum Breaker Size: 45 Amps
Dedicated Circuit Required: Yes

 
DIMENSIONS & WEIGHT 
Outdoor Condenser

Width: 37.48 in
Height: 52.48 in
Depth: 16.34 in
Net Weight: ~224 lbs

 
36K DIY Hybrid™ Ducted Air Handler

Width: 21.02 in
Height: 49.02 in
Depth: 21.02 in
Net Weight: ~128 lbs

12K Wall-Mounted Air Handler

Width: 31.57 in
Height: 11.63 in
Depth: 7.44 in
Net Weight: ~24.5 lbs

 
WHAT’S INCLUDED IN THIS BUNDLE 

 MRCOOL® DIY® 48,000 BTU Multi-Zone Outdoor Condenser
 (1) 36,000 BTU DIY Hybrid™ Ducted Air Handler
 (1) 12,000 BTU Wall-Mounted Indoor Air Handler
 DIYPRO® communication cable
 Wireless remote for wall unit
 Installation manuals & mounting hardware

Line sets and Heat Kits sold separately
Compatible Heat kits
MVPHK05
MVPHK08MVPHK10MVPHK15MVPHK20
 
WARRANTY COVERAGE

5-Year Parts Warranty
7-Year Compressor Warranty

Limited Lifetime Replacement Warranty (with MRCOOL® Care Program registration)

 
FREQUENTLY ASKED QUESTIONS 
Can this system heat and cool multiple areas independently?
Yes. The ducted air handler conditions large areas while the wall unit controls a separate zone independently.
 
Is professional HVAC installation required?
No. This system is designed for true DIY installation using pre-charged QuickConnect® line sets.
 
Does it support smart home control?
Yes. Works with the MRCOOL® Smart HVAC App, Alexa®, and Google Home®.
 
Can I add more zones later?
Yes, as long as total condenser capacity is not exceeded.
 
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 MRCOOL® 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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