A Fresh Pick｜MRCOOL® DIY® 5th Gen Multi-Zone 4-Zone 48,000 BTU 21.8 SEER2 (6K + 6K + 6K + 18K)- 4x 25ft line sets- Ductless Mini-Split Air Conditioner & Heat Pump- DIYM448HPW00D216

Product Description 
Model: DIYM448HPW00D216
 
The MRCOOL® DIYM448HPW00D216 is a high-performance 4-zone ductless mini-split system designed for homeowners who demand room-by-room comfort, energy efficiency, and a true DIY installation without sacrificing professional-grade performance.
This system pairs the MRCOOL® DIY® 5th Generation 48,000 BTU multi-zone condenser with three 6,000 BTU wall-mounted air handlers for smaller bedrooms, offices, or bonus rooms, plus one 18,000 BTU air handler for a larger shared space such as a living room or open-concept area. This zoning layout allows precise temperature control while maximizing system efficiency.
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 licensed refrigerant handling. The included DIYPRO® cable removes the need for electrical conduit, reducing installation time and cost.
Powered by DC inverter technology and rated at 21.8 SEER2, this system delivers whisper-quiet operation, lower utility bills, and long-term reliability—making it an ideal solution for homeowners upgrading from window units, older mini-splits, or inefficient central systems.
 
KEY FEATURES & PERFORMANCE HIGHLIGHTS 

48,000 BTU total system capacity
4 independently controlled comfort zones
Three 6,000 BTU zones + one 18,000 BTU zone
21.8 SEER2 high-efficiency performance
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® 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
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) 25-ft DIY® QuickConnect® Line Sets (1/4 × 3/8) — for 6K air handlers
✔ (1) 25-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 (FAQ)
Is this system truly DIY?
Yes. MRCOOL® DIY® QuickConnect® technology eliminates vacuuming and refrigerant charging.
 
Can each room be controlled independently?
Yes. Each air handler has its own thermostat, remote, and scheduling capability.
 
Why mix 6K and 18K air handlers?
This provides precise comfort in smaller rooms while supplying higher capacity 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 HVAC615-553-8118
Family owned & USAs #1 MRCOOL® Authentication Dealer.
 
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