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MRCOOL DIY 5th Gen 3-Zone 42,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with Pre-Charged Line Sets (9K+9K+24K) (DIYM348HP)

by MRCOOL
SKU DIYM348HPW09D00
Save up to $1,773.25 Save $1,196.40
Original price $7,178.40
Original price $6,866.20 - Original price $8,866.25
Original price $7,178.40
Current price $5,982.00
$5,982.00 - $7,093.00
Current price $5,982.00
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MRCOOL DIY 5th Gen 3-Zone 42,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with Pre-Charged Line Sets (9K+9K+24K) (DIYM348HP)


Take charge of your home’s comfort with the MRCOOL DIY 5th Gen Multi-Zone Mini Split System — the simplest, most cost-effective way to enjoy powerful, energy-efficient heating and cooling without hiring a professional.

  • Comfort for Three Rooms:
    Easily heat or cool three separate spaces—350 sq. ft., 350 sq. ft., and 1,000 sq. ft.—each with its own temperature control for perfectly tailored comfort.
  • DIY Made Easy:
    Skip the expensive installation. No HVAC license, no specialized tools—just basic hand tools and you’re good to go.
  • Fast, No-Mess Setup:
    Pre-charged Quick-Connect® line sets eliminate refrigerant handling and vacuuming. Just connect the lines and start enjoying your system.
  • Year-Round Efficiency:
    With up to 21.8 SEER2 cooling and 10 HSPF2-4 heating performance, this system is built to deliver serious energy savings in every season.
  • Reliable in Extreme Weather:
    Stay warm even when it drops to -13°F. This system’s heating power is designed to perform in harsh winter conditions.
  • Worry-Free Warranty:
    Includes a 7-year compressor replacement warranty and 5-year parts coverage for added peace of mind.

From blazing summers to frigid winters, the MRCOOL DIY Mini Split keeps your home comfortable—and your energy bills low. Smart. Simple. Affordable.

WHAT YOU GET:

  • OUTDOOR UNIT (48K) x 1

MRCOOL DIY® 5th Gen 48,000 BTU 6-Zone Multi-Zone Mini Split Condenser 230V (DIY-MULTI6-48HP230D-O) 

  • INDOOR UNIT (9K) x 2

MRCOOL DIY® 5th Gen 9,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-09-HP-WMAH-230D25-O)

      • INDOOR UNIT (24K) x 1

      MRCOOL DIY® 5th Gen 24,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-24-HP-WMAH-230D25-O)

      • REMOTE CONTROL x 3
      • PRE-CHARGED LINE SETS x 3

      NOTE: Need different line set lengths? Click here to add them as add-ons.

      SPECIFICATIONS:

      SYSTEM OVERVIEW
      System Type Ductless Mini Split Air Conditioner & Heat Pump
      Zones 3
      Capacity Total: 42,000 BTU
      Zone 1: 9,000 BTU
      Zone 2: 9,000 BTU
      Zone 3: 24,000 BTU
      Coverage Area Total: 1,700 sq. ft.
      Zone 1: 350 sq. ft.
      Zone 2: 350 sq. ft.
      Zone 3: 1,000 sq. ft
      Refrigerant R-454B
      Line Sets Included 3 x Pre-Charged Line Sets
      Warranty 7 Years Compressor
      5 Years Parts
      OUTDOOR UNIT (48K) x 1
      Model DIY-MULTI6-48HP230D-O
      Dimensions 37.48" W x 16.34" D x 52.48" H
      Cooling Capacity 43,000 BTU
      SEER2 21.8
      EER2 12.0
      Heating Capacity 48,000 BTU
      HSPF2-4 10.0
      HSPF2-5 7.8
      Outdoor Noise Level 64.0 dB(A)
      Outdoor Operating Temperature Cooling: -13°F – 122°F
      Heating: -13°F – 75°F
      Voltage 208–230V
      Phase 1
      Cycle 60Hz
      Min Circuit Ampacity 40.0A
      Max Fuse Breaker 45.0A
      Weight 223.77 lbs
      Certifications ENERGY STAR Certified
      AHRI Certified
      UL Listed
      ETL Listed
      INDOOR UNIT (9K) x 2
      Model DIY-09-HP-WMAH-230D25-O
      Dimensions 31.57" W x 7.44" D x 11.69" H
      Mounting Type Wall
      Cooling Capacity 9,000 BTU
      Heating Capacity 9,000 BTU
      Coverage Area 151 to 350 sq. ft.
      Liquid Line Size 1/4"
      Suction Line Size 3/8"
      Modes Auto Mode: Automatically selects heating or cooling based on the room's temperature.
      Cool Mode: Lowers the room temperature to your desired setting.
      Heat Mode: Raises the room temperature to your desired setting.
      Fan-Only Mode: Circulates air without heating or cooling.
      Dry Mode (Dehumidification): Reduces humidity levels in the room.
      Sleep Mode: Gradually adjusts temperature settings for comfortable sleep and energy savings.
      Weight 24.47 lbs
      INDOOR UNIT (24K) x 1
      Model DIY-24-HP-WMAH-230D25-O
      Dimensions 42.52" W x 8.9" D x 13.19" H
      Mounting Type Wall
      Cooling Capacity 24,000 BTU
      Heating Capacity 24,000 BTU
      Coverage Area 751 to 1,000 sq. ft.
      Liquid Line Size 3/8"
      Suction Line Size 5/8"
      Modes Auto Mode: Automatically selects heating or cooling based on the room's temperature.
      Cool Mode: Lowers the room temperature to your desired setting.
      Heat Mode: Raises the room temperature to your desired setting.
      Fan-Only Mode: Circulates air without heating or cooling.
      Dry Mode (Dehumidification): Reduces humidity levels in the room.
      Sleep Mode: Gradually adjusts temperature settings for comfortable sleep and energy savings.
      Weight 35.93 lbs

      GUIDE:

      Installation Manual

      MRCOOL 5th Gen Brochure

      Energy Guide

      ARHI Certificate

      Remote Control Manual

      Warranty

      SHIPPING POLICY:

      Free Curbside Delivery
      MRCOOL orders include free curbside delivery via FedEx Ground, FedEx Freight, or the most trusted carrier available. Please note that delivery is to the curbside only - be sure to arrange for assistance if needed, as the carrier will not bring items inside your home.

      Tracking & Delivery Scheduling
      In most cases, you will receive tracking details 3-5 business days after you place your order. When the tracking number is sent, please allow 1-2 business days for the tracking number to populate details.

      RETURN POLICY:

      MRCOOL returns must be requested within 30 days of your delivery date. We are unable to process returns submitted after this period. Products must be unused, uninstalled, and in their original packaging, including the box and pallet, to qualify for a return.

      Restocking Fee
      Please note, a 35% restocking fee will be applied to all approved returns.

      Non-Returnable Items
      Accessories including lineguards, wall mounts, linesets, couplers, and similar items are not eligible for return.