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The MRCOOL Universal Series R-454B Series offers advanced features designed for optimal performance and efficiency. With its eco-friendly refrigerant, this series ensures a reduced environmental impact while delivering reliable cooling and heating solutions. Users can also benefit from high seer ratings, which signify superior energy efficiency, helping to lower utility bills. Ideal for both residential and commercial applications, the MRCOOL Universal Series is engineered to meet diverse climate needs.

The MRCOOL Universal Series DC Inverter Heat Pump System is built to deliver dependable, high-efficiency heating and cooling—even in extreme outdoor conditions. Whether you’re facing frigid winters or sweltering summer heat, this powerful unit ensures consistent indoor comfort without compromise. With up to 18.6 SEER2 rating, it offers energy-saving performance that helps reduce utility costs while keeping your home comfortable year-round. This system is an ideal solution for homeowners who need reliable performance in smaller or space-restricted areas.

Its sleek, compact design makes it easy to install in smaller spaces—without sacrificing power or performance. At the heart of the system is advanced DC inverter technology, which allows the unit to operate at variable speeds, maintaining a steady indoor temperature with minimal energy use. Unlike traditional systems that frequently cycle on and off, this technology improves efficiency, reduces wear on components, and delivers quieter, smoother operation.

Installation is made even easier with compatibility for the MRCOOL NO-VAC Quick Connect line set (sold separately). This pre-charged, sealed line set eliminates the need for vacuuming or flaring, significantly reducing installation time, complexity, and cost. It’s the perfect solution for homeowners and contractors looking for a faster, more reliable setup. For added peace of mind, MRCOOL backs the Universal Series 24K DC Inverter Heat Pump Condenser with a 10-year parts warranty and a 2-year limited labor warranty, ensuring your investment is protected well into the future.

Additional information

MRCOOL Universal	Universal Series 24,000 BTU R-454B System, Universal Series 30,000 BTU R-454B System, Universal Series 36,000 BTU R-454B System, Universal Series 48,000 BTU R-454B System, Universal Series 60,000 BTU R-454B System

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FAQs

What refrigerant does the new Universal Series use?

The updated Universal Series uses R‑454B refrigerant, replacing R‑410A with a lower‑GWP, regulatory‑compliant blend.

What is the SEER2 rating for the new Universal 24K condenser?

The UHP18024‑O model delivers up to 18.6 SEER2, making it one of the highest‑efficiency compact inverter condensers in its class.

How loud is the new Universal R‑454B condenser?

It operates at 59 dBA, thanks to its DC inverter and rotary compressor design. This is quieter than most traditional single‑stage heat pumps.

What is the maximum supported line‑set length?

The new Universal supports up to 164 ft of line‑set length, giving installers flexibility for homes where the condenser must be placed farther away.

Is the new Universal compatible with MRCOOL NO‑VAC Quick Connect linesets?

Yes — the condenser is fully compatible with MRCOOL NO‑VAC Quick Connect® pre‑charged line sets, reducing installation time and eliminating vacuuming.

What size home can the 24K Universal heat and cool?

The 24K model provides 24,000 BTU heating and cooling, suitable for 800–1,200 sq ft depending on insulation and climate. (Corpus Christi’s climate typically allows the higher end of that range.)

Does the Universal R‑454B condenser support multi‑position air handlers?

Yes — it pairs with the Universal multiposition air handler, supporting upflow, downflow, horizontal left, and horizontal right configurations.

What type of compressor does the new Universal use?

It uses a rotary DC inverter compressor, enabling variable‑speed operation for smoother temperature control and higher efficiency.

What warranties come with the new Universal Series?

MRCOOL provides a 10‑year parts warranty and a 2‑year limited labor warranty on the Universal Series.

⚠️ California Proposition 65 Refrigerant Warning

Why is there a California Proposition 65 warning on this refrigerant?

California requires a Proposition 65 warning on any HVAC system containing pressurized refrigerants such as R‑454B. This does not mean the product is unsafe during normal operation. The warning simply states that refrigerants can be hazardous if directly inhaled or improperly handled. The refrigerant is sealed inside the system, and licensed installers follow EPA guidelines to ensure safe installation and operation.

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