MRCOOL® DIY® Select 1st Gen- 18K BTU 230V Mini Split Complete System – Black Air Handler – 17.3 SEER2 Heat Pump – Easy Install (DIYS-18-HP-B-230A11-O) 11.5ft Pre-Charged line set

Product Description 

If you want serious performance for a larger space and a cleaner, modern look, this system checks both boxes.

The MRCOOL DIY Select 18K BTU Mini Split Complete System with Black Air Handler (230V) is built for homeowners who need powerful heating and cooling — without the high cost of professional installation.

Designed by MRCOOL, this system delivers reliable comfort for spaces up to 800 sq ft, making it perfect for garages, basements, workshops, and larger rooms.

What really sets this system apart is the black indoor unit, giving you a more premium look compared to standard white air handlers.

Installation is designed for real homeowners:
No vacuum pump
No gauges
No HVAC tools required

The included Quick Connect® line set is pre-charged with R-454B refrigerant, making installation faster and simpler.

With 17.3 SEER2 efficiency, you’ll get strong performance without high energy costs.

Control everything from your phone using the MRCOOL app or use voice control with Alexa and Google Assistant.

If you want power, modern style, and easy installation — this system delivers.

KEY FEATURES

✔ Black Wall-Mounted Air Handler (Modern Design)
✔ Complete System (11.5 ft Line Set Included)
✔ True DIY Installation – No HVAC tools required
✔ 230V Power – Ideal for larger systems
✔ Heat Pump (Heating + Cooling)
✔ Covers Up to 800 Sq Ft
✔ 17.3 SEER2 Energy Efficient
✔ Smart App + Voice Control
✔ Gold Fin® Corrosion Protection

TECHNICAL SPECIFICATIONS

System Specs

• System Type: Mini Split Heat Pump
• Zone: Single Zone
• Cooling Capacity: 17,000 BTU
• Heating Capacity: 18,000 BTU
• SEER2: 17.3
• EER2: 9
• HSPF2-4: 8.5
• Coverage Area: Up to 800 sq ft
• Refrigerant: R-454B

Electrical Specs

• Voltage: 208/230V
• Phase: 1
• Frequency: 60 Hz
• Minimum Circuit Ampacity: 15A
• Recommended Breaker: 20 Amp
• Max Fuse/Breaker: 20A

Indoor Air Handler (Black)

• Model: DIYS-18-HP-B-WMAH-230A13-O
• Color: Black
• Noise Level: 18.5 – 46.5 dBA
• Dimensions: 38.23” W x 12.64” H x 8.98” D
• Weight: 30.64 lbs
• Fan Motor: DC
• Filter: Reusable
• Smart Features: WiFi + App + Voice

Outdoor Condenser

• Model: DIYS-18-HP-C-230A11-O
• Compressor: Rotary
• Noise Level: 55 dBA
• Dimensions: 30.12” W x 21.85” H x 11.93” D
• Weight: 62.61 lbs
• Inverter: Yes
• Max Line Length: 75 ft

Line Set

• Included Length: 11.5 ft
• Liquid Line: 1/4”
• Suction Line: 1/2”

BREAKER SIZE 

• Voltage: 230V
• Minimum Circuit Ampacity: 15A
• Recommended Breaker Size: 20 Amp

 👉 Always size from condenser specs

Warranty Information

The MRCOOL DIY Select 18K BTU System includes:

• 2-Year Compressor Warranty
• 1-Year Parts Warranty
• 1-Year Remote Warranty

Why Purchase from MRCOOL DIRECT?

✔ Buy Direct from a Trusted MRCOOL Dealer
✔ Fast Shipping Nationwide
✔ Expert Support Before & After Purchase
✔ No Middleman Markups
✔ Access to Latest MRCOOL Products
✔ Trusted by Homeowners & Contractors

👉 MRCOOL DIRECT gives you more than just equipment — you get reliability and support.

Frequently Asked Questions about the MRCOOL DIY Select 18k BTU Mini Split System with Black air- handler.

Q: What size space does an 18K mini split cover?
Up to 800 sq ft.

Q: What breaker size is required?
20 amp breaker on 230V.

Q: Can I install this myself?
Yes — designed for DIY installation.

Q: What’s the benefit of the black air handler?
It offers a more modern, premium look compared to standard white units.

This MRCOOL DIY 18k BTU 115V mini split complete system is one of the best solutions for homeowners looking for a powerful, energy-efficient, and easy-to-install HVAC system.”