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MRCOOL 5th Gen Advantage 9,000 BTU Single Zone Mini Split Complete System with 16ft. Line Set 230V (HVAC Technician Required), A-09-HP-230D-O

by MRCOOL
SKU A-09-HP-230D-O
Save 20% Save 20%
Original price $957.50
Original price $957.50 - Original price $957.50
Original price $957.50
Current price $766.00
$766.00 - $766.00
Current price $766.00
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This product is estimated to arrive in August 2025. Pre-Order Now!

$766.00
Description

MRCOOL 5th Gen Advantage 9,000 BTU Mini-Split delivers efficient climate control for spaces up to 400 sq. ft. This ductless system features eco-friendly R-454B refrigerant, impressive SEER2 rating of 21.2, and built-in Wi-Fi control. Includes 16ft line set and corrosion-resistant Gold Fin® condenser. Professional HVAC installation required. Ideal for year-round comfort with minimal energy consumption.

  • Gold Fin® Condenser: Corrosion-resistant design ideal for coastal environments.
  • R-454B Refrigerant: Eco-friendly with 80% lower GWP than R-410A.
  • High Efficiency Ratings: Up to 21.2 SEER2 and 9.1 HSPF2-4 for energy savings.
  • Smart Controls: Built-in Wi-Fi supports Google Assistant & Amazon Alexa.
  • Remote + Follow Me® Mode: Automatically adjusts temperature based on your location.
  • Quiet Operation: Indoor noise levels as low as 18.5 dB(A).
  • Coverage Area: Effectively cools/heats rooms up to 400 sq. ft.
  • Timer Mode + Leak Detection: Intelligent operation with safety and savings in mind.
  • Certified & Listed: AHRI Certified, NEEP ccASHP Listed, CEE Tier 1 (North).
  • Warranty & Support: 1-year parts, 2-year compressor, 1-year remote warranty; optional Lifetime compressor coverage with MRCOOL® Care enrollment
Specifications
Dimensions
Condenser Dimensions30.12" W x 11.93" D x 21.85" H
Air Handler Dimensions28.43" W x 7.36" D x 11.42" H
Condenser Weight54.23 lbs
Air Handler Weight16.98 lbs
Capacity & Performance
Zone Capacity1
Cooling Capacity9,000 BTU
Outdoor Operating Temperature (Cooling)5°F - 122°F
EER212.6
SEER221.2
Heating Capacity10,000 BTU
Outdoor Operating Temperature (Heating)5°F - 86°F
HSPF2-49.1
HSPF2-57
Coverage AreaUp to 400 sq ft.
Outdoor Noise Level53.5 dB(A)
Indoor Noise Level (Hi/Mi/Lo)40.5 / 35.5 / 31.5 / 23.0 / 18.5 dB(A)
Electrical Requirements
Voltage208-230V
Phase1
Cycle60 Hz
Max Fuse Breaker15A
Min Circuit Ampacity12A
Refrigerant & Piping
Refrigerant TypeR-454B
Refrigerant Volume21.52 oz
Liquid Line Size1/4"
Suction Line Size3/8"
Max Line Set Length82 ft.
Features
InverterDC
Compressor TypeRotary
Wifi CompatibilityYes
App CompatibilityYes
Works with IOSYes
Works with AndroidYes
Remote Control IncludedYes
Certifications & Warranty
CertificationsUL Listed, CSA Listed, ETL Listed, AHRI Certified
Warranty1-year parts, 2-year compressor, 1-year remote warranty; optional Lifetime compressor coverage with MRCOOL® Care enrolment.
FAQs

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:
  • 9K BTU = 180 to 375 Sq Ft.
  • 12k BTU = 376 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 4th Gen Multi-Zone 18k – 36k condensers:

  • Heating: -13°F to 75.2°F (outside temperature)
  • Cooling: 5°F to 122°F (outside temperature)

For the 4th Gen Multi-Zone 48k condensers:

  • Heating: 5°F to 75.2°F (outside temperature)
  • Cooling: 5°F to 122°F (outside temperature)

Indoors, at the thermostat:

  • Cooling: 62°F to 90°F
  • Heating: 32°F to 86°F

Single-Zone:

For the 4th Gen Single Zone 12K – 24k condensers:

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

For the 4th Gen Single Zone 36k condensers:

  • Heating: 5°F to 75°F (outside temperature)
  • Cooling: 5°F to 122°F (outside temperature)

Indoors, at the thermostat:

  • Cooling: 62.2°F to 89.6°F
  • Heating: 32°F to 86°F

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.

Customer Reviews

Based on 36 reviews
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J
Jonathan Woods
Easy DIY just as it’s called

We have a home which only has electric baseboard heaters and are super expensive. We’ve been looking at mini splits but didn’t want to pay the outrageous HVAC vendor fees. Studied MrCool DIY systems and finally decided to buy it. Everything shipped and arrived super quick. You do have to have basic maintenance skills to install as stated in the manual. Also be sure to triple check your install locations and measure the length to order the right size lines. The charged copper lines are not super easy to straighten so the 25’ roll doesn’t mean it will actually go 25’ so give yourself some extra room. Installed the four zone system in about 2 days without any issues. It was -10 last night and the system worked without any issues and kept the house at a nice 70. Excited to have the system and hope it works great in the future!

A
Andrew Frieden
Great product

Everything was delivered on time!

S
Shannon
48K BTU multizone

Love this system really quite and does a frat job in my 2800 sq. Ft. shop

C
Curtis
Perfect purchase

I was nervous about purchasing from hvac kingdom. Purchase was seemless

B
Bill Cochran
Love these units

Have two other Mr cools that I have purchased previously, cannot get over how efficient and well these units run. Love the little updates that I have on my latest 12K that I have bought, better remote in Reading easier access to clean filters, thanks again for the unit, would recommend to anybody and I have

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