MRCOOL® DIY 5th Gen 48,000 BTU 4-Zone Mini-Split System (6K + 6K + 9K + 24K), 4x 25ft line sets, 21.5 SEER2 – Model DIYM448HPW04D216

Product Description 

Model: DIYM448HPW04D216

The MRCOOL DIYM448HPW04D216 is a professionally balanced, high-efficiency 4-zone ductless mini-split system built for homeowners who want maximum comfort, smart zoning, and serious energy savings—without paying for professional installation.

This system is powered by the MRCOOL DIY® 5th Generation 48,000 BTU multi-zone condenser and paired with a highly effective indoor configuration:

• (2) 6,000 BTU wall-mounted air handlers
• (1) 9,000 BTU wall-mounted air handler
• (1) 24,000 BTU wall-mounted air handler

This layout is ideal for bedrooms, offices, nurseries, bonus rooms, and a large open living area, allowing you to deliver heating and cooling exactly where it’s needed—no wasted energy, no hot or cold spots.

Thanks to MRCOOL® DIY® QuickConnect® technology, installation is dramatically simplified. The included pre-charged 25-ft line sets arrive factory-sealed with R-454B refrigerant, eliminating the need for:

• Vacuum pumps
• Manifold gauges
• EPA certification
• Licensed HVAC labor 

The included DIYPRO® communication cable removes the need for electrical conduit, speeding up installation while improving long-term reliability.

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 indoor air handlers
• Up to 21.5 SEER2 efficiency
• DC inverter variable-speed compressor
• DIY® QuickConnect® pre-charged line sets
• 25-ft line sets for flexible layouts
• DIYPRO® cable – no conduit required
• Gold Fin® anti-corrosion protection
• Follow Me® temperature sensing
• Smartphone app control
• Alexa® & Google Home® compatible
• ENERGY STAR® & AHRI certified

ELECTRICAL REQUIREMENTS & BREAKER INFORMATION

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: 42.52 in
• Height: 13.19 in
• Depth: 9.25 in
• Weight: ~36 lbs

WARRANTY COVERAGE

• 5-Year Parts Warranty
• 7-Year Compressor Warranty
• Eligible for the MRCOOL® Care Kit Program

WHAT’S INCLUDED IN THIS BUNDLE 

• ✔ 48,000 BTU MRCOOL DIY® 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) 25-ft DIY® QuickConnect® Line Sets (1/4 × 3/8)
• ✔ (1) 25-ft DIY® QuickConnect® Line Set (1/4 × 5/8)
• ✔ DIYPRO® communication cable
• ✔ Wireless remotes for each indoor unit
• ✔ Mounting plates & installation manuals

Smartphone not included.

FREQUENTLY ASKED QUESTIONS 

Can each zone be controlled independently?

Yes. Each indoor unit has its own remote and temperature control.

Is professional HVAC installation required?

No. This system is engineered specifically for true DIY installation.

Why choose 25-ft line sets instead of 16-ft?

They provide greater flexibility for condenser placement and multi-room layouts.

Does this system work in cold climates?

Yes. The inverter compressor delivers reliable heating even in low outdoor temperatures.

Is this system smart-home compatible?

Yes. Works with Alexa®, Google Home®, and the MRCOOL® Smart HVAC 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 HVAC
615-553-8118

Family owned & USAs #1 MRCOOL® Authentication Dealer.