MRCOOL® DIY® 5th Gen Multi-Zone 4-Zone 48,000 BTU 21.8 SEER2 (6K + 6K + 6K + 18K)- 4x 16ft line sets- Ductless Mini-Split Air Conditioner & Heat Pump —DIYM448HPW00D00

Product Description 

Model: DIYM448HPW00D00

The MRCOOL® DIYM448HPW00D00 is a professionally engineered 4-zone ductless mini-split system designed for homeowners who want true room-by-room comfort, high efficiency, and the ability to install a full HVAC system without paying contractor labor.

This configuration pairs the MRCOOL® DIY® 5th Generation 48,000 BTU multi-zone condenser with three 6,000 BTU wall-mounted air handlers for smaller rooms and one 18,000 BTU air handler for a larger space such as a living room, open-concept area, or master suite. The result is balanced comfort across the home with precise zoning control where it matters most.

Installation is simplified using MRCOOL® DIY® QuickConnect® line sets, which arrive factory-sealed and pre-charged with R-454B refrigerant, eliminating the need for vacuum pumps, gauges, or EPA refrigerant handling. Combined with the included DIYPRO® cable, this system installs faster, cleaner, and more affordably than traditional multi-zone systems.

Powered by DC inverter technology and rated at 21.8 SEER2, this system delivers outstanding efficiency, quiet operation, and long-term reliability—making it an ideal upgrade for homeowners replacing older HVAC systems or expanding comfort room by room.

 KEY FEATURES & PERFORMANCE HIGHLIGHTS

• 48,000 BTU total system capacity
• 4 independently controlled zones
• Three 6,000 BTU zones + one 18,000 BTU zone
• 21.8 SEER2 high-efficiency rating
• DC inverter variable-speed compressor
• DIY® QuickConnect® pre-charged line sets
• No vacuum pump or HVAC license required
• DIYPRO® cable (no conduit needed)
• Gold Fin® anti-corrosion coating
• Follow Me® temperature sensing
• MRCOOL® Smart HVAC Controller® App
• Amazon Alexa® & Google Home® compatibility
• 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
• Net Weight: ~224 lbs

6K Indoor Air Handlers (each)

• Width: 31.57 in
• Height: 11.69 in
• Depth: 7.44 in
• Weight: ~24.5 lbs

18K Indoor Air Handler

• Width: 42.52 in
• Height: 13.19 in
• Depth: 8.9 in
• Weight: ~35.5 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
• ✔ (3) 6,000 BTU Wall-Mounted Indoor Air Handlers
• ✔ (1) 18,000 BTU Wall-Mounted Indoor Air Handler
• ✔ (3) 16-ft DIY® QuickConnect® Line Sets (1/4 × 3/8) — for 6K air handlers
• ✔ (1) 16-ft DIY® QuickConnect® Line Set (1/4 × 1/2) — for 18K air handler
• ✔ DIYPRO® communication cable
• ✔ Wireless remotes for each zone
• ✔ Installation manuals & mounting hardware

Smart phone not included.

FREQUENTLY ASKED QUESTIONS  

Is this a true DIY system?

Yes. MRCOOL® DIY® QuickConnect® technology eliminates vacuuming and refrigerant charging.

Can each room be controlled independently?

Yes. Each indoor unit has its own thermostat and remote.

Why mix 6K and 18K air handlers?

This allows precise sizing for small rooms while delivering higher output for larger shared spaces.

Does this system work with smart home platforms?

Yes. Compatible 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 HVAC
615-553-8118

Family owned & USAs #1 MRCOOL® Authentication Dealer.

When accuracy, warranty protection, and long-term performance matter, homeowners choose MRCOOL DIRECT.