Description
Solution Statement
The MRCOOL DIY 5th Gen Single-Zone system provides a straightforward, highly efficient heating and cooling solution for individual spaces like master bedrooms, garages, workshops, or sunrooms. Pre-charged Quick Connect line sets simplify refrigerant-line installation and reduce the need for specialized refrigerant tools. All work must still comply with applicable local electrical, mechanical, permitting, and licensing requirements. It delivers premium comfort, smart home compatibility, and significant energy savings in a package designed specifically for the handy homeowner.
DIY 5th Gen Single-Zone Mini-Split Bundle
This is a MRCOOL DIY 5th Gen single-zone mini-split bundle.
Technical Specifications
| Model / SKU | DIY-18-HP-WM-230D25-O |
| Brand | MRCOOL |
| Series | DIY 5th Gen |
| Refrigerant | R-454B |
| Electrical | 208-230V / 60Hz |
| Weight | 129.0 lbs (58.51 kg) |
| Product Type | Complete Mini-Split System |
| AHRI Certified | Yes — AHRI certification number available upon request |
Installation & Product Tips
- Mounting Height: Install the air handler 7–8 feet above the floor for optimal airflow distribution. Avoid mounting directly above doors or windows.
- Line Set Routing: Plan your line set route before mounting. The line set must slope slightly toward the outdoor unit for proper condensate drainage.
- Electrical Requirements: This air handler requires a dedicated circuit. Consult a licensed electrician if you are unsure of your home's electrical capacity.
- Wi-Fi Setup: The built-in Wi-Fi module connects to 2.4 GHz networks only. Have your network password ready during setup.
- Filter Maintenance: Clean or replace the air filter every 4–6 weeks during heavy use to maintain efficiency and air quality.
Frequently Asked Questions
Compatible Accessories
| Accessory | Price | Action |
|---|---|---|
| DIY Quick-Connect Line Sets Pre-charged R-454B, 16 ft / 25 ft / 35 ft / 50 ft — select size matching your air handler BTU |
From | View All Options |
| LineGuard Line Set Cover Kit (4.5" — 16 Piece) Protect and conceal exposed line sets. SKU: MLG450 |
View & Add to Cart | |
| Condenser Wall Mounting Bracket (9K–18K BTU) Heavy-duty steel, adjustable. SKU: MB176 |
View & Add to Cart | |
| Condenser Rubber Risers — 6" (Set of 2) Vibration isolation, drainage elevation. SKU: H600-B |
View & Add to Cart | |
| MRCOOL Smart Wi-Fi Mini Stat (White) 24V smart thermostat, Alexa & Google compatible. SKU: MST05 |
View & Add to Cart | |
| MRCOOL Mini-Split Care Kit Complete maintenance kit for annual cleaning. SKU: MMCK01 |
View & Add to Cart |
Warranty Information
MRCOOL Standard Limited Warranty:
- Compressor: 7 years
- Parts: 5 years
- Labor: Not included under the standard limited warranty
Standard coverage: 7-year compressor / 5-year parts; no registration required for standard coverage
Keep your purchase receipt and installation records. Standard limited warranty coverage is subject to MRCOOL's written terms, installation requirements, applicable law, and exclusions.
Need Help Choosing the Right Product
Our HVAC specialists are ready to help you select the right system for your application, verify compatibility, and answer any technical questions.
Contact UsComplete Your Installation
Ensure a smooth and code-compliant installation with these required and recommended components:
- MRCOOL Pre-Charged Line Sets — Pre-charged with refrigerant, no vacuum pump required
- Disconnect Box (60 Amp) — Required for code compliance in most jurisdictions
- Surge Protective Device — Protects your system from voltage spikes
- Wall Mount Bracket (9K–18K BTU) — Elevates condenser off the ground for debris protection
Add these items now to avoid installation delays.
With over 15 years in the HVAC industry and 500+ MRCOOL systems personally installed, we bring hands-on expertise that translates directly into accurate product guidance. You get the right system the first time — backed by our price match guarantee and free expert support.
