MRCOOL® DIY® 5th Gen Multi-Zone 4-Zone 48,000 BTU 21.8 SEER2 (6K + 6K + 9K + 12K)- 4x 25ft line sets- Ductless Mini-Split Air Conditioner & Heat Pump-DIYM448HPW02D122

Product Description 

Model: DIYM448HPW02D122

 

 The MRCOOL® DIYM448HPW02D122 is a high-efficiency, professionally balanced 4-zone ductless mini-split system designed for homeowners who want maximum comfort, zoning flexibility, and energy savings—without the cost or delays of professional HVAC installation.

This system is powered by the MRCOOL® DIY® 5th Generation 48,000 BTU multi-zone condenser and paired with a smart mix of two 6,000 BTU, one 9,000 BTU, and one 12,000 BTU wall-mounted air handlers. This combination allows you to precisely match capacity to room size, making it ideal for bedrooms, offices, nurseries, bonus rooms, and medium living areas.

Thanks to MRCOOL®’s patented DIY® QuickConnect® technology, installation is dramatically simplified. The included 50-foot 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® cable removes the need for electrical conduit, speeding up installation while improving long-term durability.

With DC inverter technology, Gold Fin® corrosion-resistant coils, and full MRCOOL® Smart HVAC Controller® 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) 12K BTU indoor air handlers
• 21.8 SEER2 high-efficiency rating
• DC inverter variable-speed compressor
• DIY® QuickConnect® pre-charged line sets
• Extended 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
• 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

9K Indoor Air Handler

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

12K Indoor Air Handler

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

 

WARRANTY COVERAGE

• 5-Year Parts Warranty
• 7-Year Compressor Warranty
• Limited Lifetime Replacement Warranty
  (with MRCOOL® Care Program registration)

 

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) 12,000 BTU Wall-Mounted Indoor Air Handler
• ✔ (4) 25-ft DIY® QuickConnect® Line Sets (1/4 × 3/8)
• ✔ DIYPRO® communication cable
• ✔ Wireless remotes for each indoor unit
• ✔ Installation manuals & mounting hardware

Smart phone not included.

  

FREQUENTLY ASKED QUESTIONS (FAQ)

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

They allow greater installation flexibility for larger homes or longer condenser placement distances.

 

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.

 

Does it support smart home integration?

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.
• MRCOOL Direct offers Extended Warranty as well.(Purchase separately)

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.

Buying from MRCOOL DIRECT means accuracy, warranty protection, and long-term support.