MRCOOL® DIY 5th Gen Multi-Zone 4-Zone 48,000 BTU 21.8 SEER2 (6K + 6K + 9K + 24K), 4x 16ft line sets, Ductless Mini-Split Heat Pump System – Model DIYM448HPW04D00

Product Description 
Model: DIYM448HPW04D00
 
The MRCOOL DIYM448HPW04D00 is a high-capacity, professionally balanced 4-zone ductless mini-split system engineered for homeowners who want maximum comfort, zoning precision, and long-term energy savings—without paying for professional HVAC installation.
 
This system is powered by the MRCOOL® DIY® 5th Generation 48,000 BTU multi-zone condenser and paired with a carefully matched combination of two 6,000 BTU, one 9,000 BTU, and one 24,000 BTU wall-mounted air handlers. This layout is ideal for bedrooms, offices, nurseries, bonus rooms, and large living areas, allowing each space to receive perfectly sized comfort.
 
Installation is dramatically simplified thanks to MRCOOL®’s patented DIY® QuickConnect® technology. The included pre-charged DIY® QuickConnect® line sets arrive factory-sealed with R-454B refrigerant, eliminating the need for vacuum pumps, gauges, or licensed refrigerant handling. The DIYPRO® communication cable removes the need for electrical conduit, speeding installation while improving durability.
 
With DC inverter technology, Gold Fin® corrosion-resistant coils, and full MRCOOL® Smart HVAC Controller® app integration, this system delivers quiet operation, lower utility bills, and dependable year-round comfort—all with true DIY convenience.
KEY FEATURES & PERFORMANCE HIGHLIGHTS 

48,000 BTU total system capacity
4 independently controlled comfort zones
(2) 6K + (1) 9K + (1) 24K BTU indoor air handlers
Up to 21.8 SEER2 efficiency
DC inverter variable-speed compressor
DIY® QuickConnect® pre-charged line sets
25-ft line-set reach for flexible layouts
DIYPRO® cable (no conduit required)
Gold Fin® anti-corrosion protection
Follow Me® temperature sensing
MRCOOL® Smart HVAC Controller® App
Alexa® & Google Home® compatible
ENERGY STAR® & AHRI certified

 
ELECTRICAL REQUIREMENTS & BREAKER INFO
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

Weight: ~224 lbs 

6K Indoor Air Handlers (each)

Width: 31.57 in
Height: 11.69 in
Depth: 7.44 in

Weight: ~24.5 lbs 

9K Indoor Air Handler

Width: 31.57 in
Height: 11.69 in
Depth: 7.44 in
Weight: ~25 lbs

24K Indoor Air Handler

Width: 41.61 in
Height: 13.19 in
Depth: 8.98 in
Weight: ~35 lbs

WARRANTY COVERAGE

5-Year Parts Warranty
7-Year Compressor Warranty

Eligible for the MRCOOL® Care Kit Program

 
WHAT’S INCLUDED IN THIS BUNDLE

✔ MRCOOL® DIY® 48,000 BTU Multi-Zone Outdoor Condenser
✔ (2) 6,000 BTU Wall-Mounted Indoor Air Handlers
✔ (1) 9,000 BTU Wall-Mounted Indoor Air Handler
✔ (1) 24,000 BTU Wall-Mounted Indoor Air Handler
✔ (3) 16-ft DIY® QuickConnect® Line Sets (1/4 × 3/8)
✔ (1) 16-ft DIY® QuickConnect® Line Set (3/8 × 5/8)
✔ DIYPRO® communication cable
✔ Wireless remotes for each indoor unit
✔ Mounting hardware & installation manuals

Smartphone not included.
 
FREQUENTLY ASKED QUESTIONS 
Can each zone be controlled separately?
Yes. Each indoor unit has independent temperature control.
 
Is professional HVAC installation required?
No. This system is designed for true DIY installation.
 
Why mix 6K, 9K, and 24K air handlers?
This ensures proper load matching for both small rooms and large living spaces.
 
Does it support smart home control?
Yes. Works with Alexa®, Google Home®, and the MRCOOL® Smart HVAC Controller® App.
 
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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