Do I need an HVAC license to buy MRCOOL products?

No! MRCOOL DIY systems are designed for homeowners, contractors, and anyone handy with basic tools. You do not need a license to purchase or install most MRCOOL products.

Do you offer free shipping?

Yes. We offer free shipping to the lower 48 states on all full MRCOOL systems and most bundled packages. Smaller items may have calculated rates.

What makes MRCOOL DIY Direct different?

We are the USA’s most trusted independent MRCOOL dealer. We offer expert support, fast shipping, and exclusive early access to new generation systems and accessories.

Choose Your System Type

Single-Zone Systems

Documentation for MRCOOL DIY single-zone mini split systems.

Multi-Zone Systems

Documentation for MRCOOL DIY multi-zone mini split systems.

MRCOOL® 5th Gen E-Star® Series Single Zone Mini Splits

Official manufacturer installation manual.

MRCOOL® EZPRO® Series Single-Zone Mini Split Systems

MRCOOL® 4th Gen (New for 2025) Olympus® Series Single-Zone Mini Split Systems

MRCOOL® 5th Gen Advantage® Series Single-Zone Mini Split Systems

Olympus® Series Single-Zone Mini Split Systems Documentation

Olympus® Series Single-Zone Mini Split Systems Documentation

MRCOOL® Olympus® Series single-zone mini split systems are designed for high-performance heating and cooling in residential and light commercial applications. Known for advanced features, efficiency, and reliability, the Olympus® Series supports professional-grade installations and long-term operation.

This documentation hub provides official manufacturer resources including installation manuals, service manuals, remote control guides, smart controller documentation, warranty information, and specification & performance data specific to Olympus® single-zone mini split systems.

Whether you are installing, servicing, or verifying technical specifications, these documents ensure access to accurate, up-to-date, manufacturer-approved information.