Description
MRCOOL DIY 4th Gen 4-Zone Multi-Zone Mini-Split System
This complete MRCOOL DIY 4th Gen 4-Zone Multi-Zone system delivers 39,000 BTU of total capacity across 4 independently controlled zones. Engineered for DIY installation with pre-charged line sets — no vacuum pump required.
What's Included
- Outdoor Condenser: DIY-MULTI4-36HP230C
- Zone 1: 9,000 BTU Wall Mount Air Handler
- Zone 2: 9,000 BTU Wall Mount Air Handler
- Zone 3: 9,000 BTU Wall Mount Air Handler
- Zone 4: 12,000 BTU Wall Mount Air Handler
- Line Sets: 4x 16ft pre-charged line sets
Key Features
- DIY-friendly installation — no HVAC license required
- WiFi enabled — control from anywhere via MRCOOL Smart HVAC app
- Pre-charged refrigerant — no vacuum pump needed
- Heat pump technology — both heating and cooling
- Energy Star certified
- Individual zone control — set different temperatures per room
System Specifications
| Generation | MRCOOL DIY 4th Gen |
| Zones | 4 |
| Total Capacity | 39,000 BTU |
| Zone Capacities | 9,000 BTU+9,000 BTU+9,000 BTU+12,000 BTU |
| Outdoor Unit | DIY-MULTI4-36HP230C |
| Line Set Length | 16ft per zone |
| Voltage | 230V / 208V |
| Installation | DIY — No HVAC License Required |
Frequently Asked Questions
- Can I install this myself?
- Yes! MRCOOL DIY systems are specifically engineered for homeowner installation. No HVAC license required. The pre-charged line sets eliminate the need for a vacuum pump or refrigerant handling certification.
- What is the warranty?
- MRCOOL DIY systems come with a 7-year parts warranty and 7-year compressor warranty when registered within 30 days of installation.
- Does this include everything I need?
- This bundle includes the outdoor condenser, all indoor wall mount air handlers, and pre-charged line sets. You will need to provide electrical wiring and mounting hardware.
- Can each zone be set to a different temperature?
- Yes. Each indoor unit operates independently, allowing you to set different temperatures in each zone.
- Is WiFi included?
- Yes. MRCOOL DIY 4th Gen systems include built-in WiFi. Control your system from anywhere using the free MRCOOL Smart HVAC app.
