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Black Friday Sale – 5% Off MRCOOL and Senville
Black Friday Sale – 5% Off MRCOOL and Senville

MRCOOL DIY 5th Gen 3-Zone 21,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (6K+6K+9K), DIY3-B-27HP

by MRCOOL
SKU DIY3-B-27HP060609
Save 9% Save 9%
Original price $3,900.60
Original price $3,900.60 - Original price $3,900.60
Original price $3,900.60
Current price $3,546.00
$3,546.00 - $3,546.00
Current price $3,546.00
Availability:
In stock

CHOOSE YOUR LINE SET AND COMMUNICATION WIRES:

Total Price: $3,546.00

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$3,546.00

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Product Information

Description

Take control of your comfort with the MRCOOL DIY 5th Gen Multi-Zone Mini Split System - the easiest and most affordable way to get powerful, energy-saving heating and cooling without hiring a pro.

  • Three Rooms, Perfect Comfort: Heat or cool three spaces that are 150 sq. ft., 150 sq. ft. and 350 sq. ft. each with independent temperature control for personalized comfort.
  • Truly DIY-Friendly: Forget expensive installs - no HVAC license or special tools required. If you can use basic hand tools, you can do this.
  • No Hassle Setup: Comes with pre-charged Quick-Connect® line sets, so there’s no messy refrigerant handling or vacuuming. Just connect and enjoy.
  • Year-Round Savings: Boasting up to 23 SEER2 cooling efficiency and 9.5 HSPF2-4 heating performance, this system delivers serious energy savings.
  • Built for Every Season: Stay cozy even in the dead of winter - reliable heating works all the way down to -13°F.
  • Strong Warranty Protection: Includes 7-Year Compressor Replacement and 5-Year Parts Coverage.

Whether it’s hot summer days or freezing winter nights, the MRCOOL DIY Mini Split keeps your home comfortable and your energy bills low. Smart. Simple. Affordable.

Specifications
  • SYSTEM OVERVIEW
  • System Type: Ductless Mini Split Air Conditioner & Heat Pump
  • Zones: 3
  • Capacity: Total: 21,000 BTU//Zone 1: 6,000 BTU//Zone 2: 6,000 BTU//Zone 3: 9,000 BTU
  • Coverage Area: Total: 650 sq. ft.//Zone 1: 150 sq. ft.//Zone 2: 150 sq. ft.//Zone 3: 350 sq. ft
  • Refrigerant: R-454B
  • Line Sets Included: None - Choose Your Line Sets Above!
  • Warranty: 7 Years Compressor//5 Years Parts
  • OUTDOOR UNIT (27K) x 1
  • Model: DIY-MULTI4-27HP230D-O
  • Dimensions: 37.24" W x 16.14" D x 31.89" H
  • Cooling Capacity: 26,000 BTU
  • SEER2: 23.0
  • EER2: 12.0
  • Heating Capacity: 26,000 BTU
  • HSPF2-4: 9.5
  • HSPF2-5: 7.0
  • Outdoor Noise Level: 61.0 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: 23.0A
  • Max Fuse Breaker: 25.0A
  • Weight: 140.2 lbs
  • Certifications: ENERGY STAR Certified//AHRI Certified//UL Listed//ETL Listed
  • INDOOR UNIT (6K) x 2
  • 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 (9K) x 1
  • 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
Manuals & Guides
FAQ's

What size DIY Mini Split do I need?

Get ready to tailor your comfort with precision! Here's what you need to consider:

  1. The Size of the Area to Heat / Cool (Square Feet)
  2. Your Local Climate (Is it sizzling hot or icy cold for prolonged periods?)
  3. Insulation (From drafty spaces to snug havens, insulation plays a crucial role)
  4. Basic Sizing based on Square Footage alone:
  • 6K BTU = 100 to 150 Sq Ft.
  • 9K BTU = 151 to 350 Sq Ft.
  • 12k BTU = 351 to 500 Sq Ft.
  • 18k BTU = 501 to 750 Sq Ft.
  • 24k BTU = 751 to 1,000 Sq Ft.
  • 36k BTU = 1,001 to 1,500 Sq Ft.

Still need help? Get in touch with our HVAC Experts!

Check out our blog 'Sizing Your Mini Split'

Can I mix and match Wall Mount and Ceiling Cassettes Air Handlers?

Yes, of course! Get in touch with one of our HVAC experts and we can put together a custom package for you.

What is the operational temperature range for DIY Mini Splits?

The operational temperature range for DIY air conditioning units varies based on whether it's a Multi-Zone or Single-Zone system:

Multi-Zone:

For the 5th Gen Multi-Zone 18k – 48k condensers:

  • Heating: -13°F to 75°F (outside temperature)
  • Cooling: -13°F to 122°F (outside temperature)

For the 5th Gen Multi-Zone 55K condensers:

  • Heating: -22°F to 75°F (outside temperature)
  • Cooling: -22°F to 122°F (outside temperature)

What can I do about the excess coil/line set length?

It is recommended to leave the remaining/excess line set coiled horizontally near the condenser and wrapped with protective tape. This will not impact performance whatsoever.

MRCOOL

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