In Focus｜MRCOOL® DIY® 5th Gen Multi-Zone 4-Zone 27,000 BTU 23 SEER2 (6K + 6K + 6K + 9K) 4x 25ft line sets- Ductless Mini-Split Air Conditioner & Heat Pump — Model DIYM427HPW01D88

Product Description 
Model: DIYM427HPW01D88
 
The MRCOOL® DIYM427HPW01D88 is a highly efficient 4-zone ductless mini-split system designed for homeowners who want precise room-by-room comfort, lower energy costs, and a true DIY installation without compromising reliability or performance.
This bundle pairs the MRCOOL® DIY® 27,000 BTU 5th Generation multi-zone condenser with three 6,000 BTU indoor air handlers and one 9,000 BTU indoor air handler, making it an excellent solution for homes with multiple bedrooms, offices, or mixed-size spaces that need balanced airflow and independent temperature control.
What sets this system apart is MRCOOL®’s patented DIY® QuickConnect® pre-charged line sets, which arrive factory-sealed with R-454B refrigerant. This eliminates vacuuming, gauges, and refrigerant handling, allowing installation without HVAC licensing. Combined with the DIYPRO® cable, installation is cleaner, faster, and far more cost-effective than traditional systems.
With 23 SEER2 efficiency, DC inverter technology, and full MRCOOL® Smart HVAC Controller® support, this system delivers quiet operation, smart scheduling, and long-term energy savings—perfect for homeowners who want comfort they can control from anywhere.
 
 KEY FEATURES & PERFORMANCE HIGHLIGHTS 

27,000 BTU total system capacity
4 independently controlled comfort zones
23 SEER2 high-efficiency rating
DC inverter compressor technology
DIY® QuickConnect® pre-charged line sets
No vacuum pump or refrigerant tools required
DIYPRO® cable (no conduit needed)
Gold Fin® corrosion-resistant coating
Follow Me® temperature sensing
MRCOOL® Smart HVAC Controller® App
Amazon Alexa® & Google Home® compatible
Ultra-quiet indoor operation
ENERGY STAR® & AHRI certified

 
 ELECTRICAL REQUIREMENTS & BREAKER INFORMATION
Outdoor Condenser — DIY-MULTI4-27HP230D-O

Voltage: 208 / 230V
Phase: Single-phase
Frequency: 60 Hz

Minimum Circuit Ampacity (MCA): 20 amps

Maximum Breaker Size: 25 amps

Dedicated Circuit Required: Yes

 
DIMENSIONS & WEIGHT
Outdoor Condenser

Width: ~33 in
Height: ~31 in
Depth: ~16 in
Weight: ~150 lbs

6K Indoor Air Handlers (each)

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

9K Indoor Air Handler

Width: ~33 in
Height: ~12 in
Depth: ~8 in
Weight: ~27 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® 27K BTU 4-Zone Outdoor Condenser
✔ (3) 6K BTU Wall-Mounted Indoor Air Handlers
✔ (1) 9K 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 
Is this system truly DIY?
Yes. No vacuuming, gauges, or refrigerant handling required.
 
Can each zone run independently?
Yes. Every indoor unit has its own temperature control.
 
Is this system efficient for daily use?
Absolutely. The 23 SEER2 rating delivers long-term energy savings.
 
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.
 
Brand:MRCOOL®Category:4 Zones/RoomsSKU:DIYM427HPW01D88Tags:2.25 Ton, 208-230V, 230V, 27000 BTU, 27000 In, 27k, 27K BTU, 27K In, 4 Zone, 6000 BTU, 6000 In, 6K, 6K + 6K + 6K + 9K, 6K BTU, 6K In, 9000 BTU, 9000 In, 9K, 9K BTU, 9K In, DIY, DIY 5th Gen, DIY Multi Zone, DIY Series, DIY-MULTI4-27HP230D-O, DIYM427HPW01D88, Four Zone, Multi 4 zone mini split, MULTI ZONE, Pre Charged, Pre-Charged R-454B, R-454B, R-454B refrigerant, R454B, Twenty-Seven Thousand, Up 1125 sqft