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MRCOOL DIY 5th Gen 3-Zone 54,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with Pre-Charged Line Sets (6K+24K+24K), (DIYM355HP)

by MRCOOL
SKU DIYM355HPW07D00
Save up to $2,026.75 Save $1,393.00
Original price $8,358.00
Original price $8,111.40 - Original price $10,133.75
Original price $8,358.00
Current price $6,965.00
$6,965.00 - $8,107.00
Current price $6,965.00
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MRCOOL DIY 5th Gen 3-Zone 54,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with Pre-Charged Line Sets (6K+24K+24K), (DIYM355HP)

Take control of your home comfort with the MRCOOL DIY® 5th Gen Multi-Zone Mini Split System—the easiest and most affordable way to enjoy powerful, energy-efficient heating and cooling without hiring a professional.

Three Rooms, Perfect Comfort: Heat or cool three spaces—150 sq. ft., 1,000 sq. ft., and 1,000 sq. ft.—with independent temperature control for fully personalized comfort.

Truly DIY-Friendly: Skip costly installations—no HVAC license or special tools required. If you can handle basic hand tools, you can install it yourself.

Hassle-Free Setup: Pre-charged Quick-Connect® line sets mean no refrigerant handling or vacuuming—just connect and start enjoying comfort immediately.

Year-Round Energy Savings: With up to 22 SEER2 cooling efficiency and 10.6 HSPF2-4 heating performance, this system helps reduce energy costs all year long.

Built for Every Season: Reliable heating keeps you cozy even in temperatures as low as -13°F.

Strong Warranty Protection: Includes 7-Year Compressor Replacement and 5-Year Parts Coverage for long-lasting peace of mind.

From blazing summer days to freezing winter nights, the MRCOOL DIY Mini Split System keeps your home comfortable and your energy bills low—smart, simple, and affordable.

WHAT YOU GET:

  • OUTDOOR UNIT (55K) x 1

MRCOOL DIY® 5th Gen 55,000 BTU 6-Zone Multi-Zone Mini Split Condenser 230V (DIY-MULTI6-55HP230D-O) 

  • INDOOR UNIT (6K) x 1

MRCOOL DIY® 5th Gen 6,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-06-HP-WMAH-230D25-O)

  • INDOOR UNIT (24K) x 2

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: 54,000 BTU
        Zone 1: 6,000 BTU
        Zone 2: 24,000 BTU
        Zone 3: 24,000 BTU
        Coverage Area Total: 2,150 sq. ft.
        Zone 1: 150 sq. ft.
        Zone 2: 1,000 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 (55K) x 1
        Model DIY-MULTI6-55HP230D-O
        Dimensions 37.48" W x 16.34" D x 52.48" H
        Cooling Capacity 47,000 BTU
        SEER2 22.0
        EER2 12.0
        Heating Capacity 55,000 BTU
        HSPF2-4 10.6
        HSPF2-5 8.5
        Outdoor Noise Level 64.0 dB(A)
        Outdoor Operating Temperature Cooling: -22°F – 122°F
        Heating: -22°F – 75°F
        Voltage 208–230V
        Phase 1
        Cycle 60Hz
        Min Circuit Ampacity 43.0A
        Max Fuse Breaker 45.0A
        Weight 245.81 lbs
        Certifications ENERGY STAR Certified
        AHRI Certified
        UL Listed
        ETL Listed
        INDOOR UNIT (6K) x 1
        Model DIY-06-HP-WMAH-230D25-O
        Dimensions 31.57" W x 7.44" D x 11.69" H
        Mounting Type Wall
        Cooling Capacity 6,000 BTU
        Heating Capacity 6,000 BTU
        Coverage Area 100 to 150 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 2
        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.