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MRCOOL 5th Generation vs 4th Generation DIY Mini Splits: What Changed?

MRCOOL’s DIY series has become the go-to choice for homeowners seeking a cost-effective alternative to expensive A/C installations without sacrificing efficiency or durability in their heating and cooling system. With the latest DIY 5th Generation systems, MRCOOL has enhanced its 4th Generation mini splits by focusing on greater efficiency, eco-friendliness, and cutting-edge technology.


Upgrades of the MRCOOL DIY 5th Generation Mini Splits

1. Industry Leading R-454B Refrigerant

Compared to the 4th Generation mini splits that used R-410a, the MRCOOL 5th Generation mini splits use the R-454B refrigerant. This upgrade makes the newer 5th Generation models more efficient and eco-friendly than their predecessors.


2. Higher Energy Efficiency

Like we alluded to earlier, the MRCOOL 5th Generation mini splits are more efficient than the 4th Generation systems, boasting the highest SEER2 (Seasonal Energy Efficiency Rating) ratings than any other MRCOOL mini split.


3. Covers More Zones

With the new 5th Generation mini splits, MRCOOL is giving users even more flexibility with the option to cover up to 6 zones.


4. Enhanced Controls

The 5th Generation systems feature enhanced controls for an even better user experience. With the Smart HVAC App, you can easily manage your 5th Generation mini split system from your phone and connect with Google Assistant and Amazon Alexa. Additionally, the new MRCOOL DIYPro cable, used by the 5th Generation models, enables more efficient communication for improved performance over previous versions.


5. Quieter Operation

Compared to the 4th Generation systems, the MRCOOL 5th Generation mini splits operate at a lower decibel (dBA) level at both the indoor and outdoor units. 

Comparing the DIY 4th Generation and DIY 5th Generation

Feature
4th Generation MRCOOL DIY Mini Splits
5th Generation MRCOOL DIY Mini Splits
Refrigerant
R-410a R-454b
Energy Efficiency
Up to 22.0 SEER2 Up to 23.9 SEER2
Eco-Friendliness
Higher Global Warming Potential (GWP) Lower Global Warming Potential (GWP)
Regulation Compliance
Meets Current Standards Meets Current and Future Standards
Zones Supported
Up to 5 Zones Up to 6 Zones
Smart Controls
Smart HVAC App Smart HVAC App and Compatibility with Google Assistant and Amazon Alexa
Outdoor Noise (dBA)
Up to 65 dBA As low as 60 dBA
Quick Connect Fittings
Yes Yes (with the improved MRCOOL DIYPro Cable)

Let's Summarize

The MRCOOL 5th Generation mini splits are an excellent choice for those looking for the latest smart technology, top-tier efficiency, greater installation flexibility, future-proof regulatory compliance, and a reduced environmental footprint.


Have any questions about the DIY 5th Generation mini splits? Reach out to our expert team to get those answered.

Shop the MRCOOL DIY 5th Generation Mini Splits

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