MRCOOL Pre-Charged 3/8" x 3/4" No-Vac Quick Connect Line Set for Central Ducted and VersaPro Series - R-454B

MRCOOL SKU: NV15-3834-O

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Line Set Length: 15 Ft
Price:
Sale price$297.00

Description

MRCOOL No Vac 3/8" x 3/4" Precharged Lineset for Ducted Systems - R454B

Your installation just got dramatically faster. The MRCOOL No-Vac Quick Connect Line Set transforms what used to take hours into a streamlined, efficient process that saves you valuable time on every job. Pre-charged with precise R-454B refrigerant at 1.94 ounces, this innovative line set completely eliminates the traditional vacuuming and flaring steps that slow down installations. Whether you're a professional contractor juggling multiple jobs or a skilled DIY homeowner tackling your own HVAC upgrade, you'll appreciate how this system cuts seven installation steps compared to conventional line sets—getting your climate control up and running faster without compromising quality or performance.

We've engineered this line set with real-world installation challenges in mind. The kink-resistant design means you can bend and route the lines through tight spaces without worrying about damaging the refrigerant flow. The leak-proof construction gives you confidence that your system will maintain optimal refrigerant levels for years to come. You're getting robust 3/4" Gator-Flextra insulation sleeve protection that shields your line set from UV sun damage, harsh weather erosion, and even destruction from animals and rodents—crucial protection whether you're running lines across rooftops or through crawlspaces. The user-friendly screw-on quick connect valves make hookup incredibly simple, even in confined mechanical spaces.

This isn't just any line set—it's specifically designed for compatibility with your MRCOOL system. It works seamlessly with MRCOOL Gen 2 Central Ducted Series (24K, 30K, 36K, 48K, and 60K Systems) and MRCOOL VersaPro Gen 2 Series (18K, 24K, 30K, 36K, 48K, and 60K Systems). Need more length? You can connect two No-Vac Quick Connect Line Sets together using a coupler to reach exactly where you need to go. Available in four convenient lengths—15 ft, 25 ft, 35 ft, and 50 ft—you can choose the perfect size for your specific installation without excess waste.

 

Perfect For:

  • HVAC professionals managing multiple installation projects - Dramatically reduce labor time with seven fewer installation steps, allowing you to complete more jobs efficiently.
  • DIY homeowners installing their own MRCOOL systems - User-friendly screw-on connections eliminate the need for specialized vacuuming equipment and technical expertise.
  • Installations requiring extended line runs - Available in four lengths (15', 25', 35', 50') with coupler compatibility for custom distance requirements.
  • Outdoor installations exposed to harsh elements - UV-protective Gator-Flextra insulation withstands sun damage, weather erosion, and animal destruction.

 

Why MRCOOL No-Vac Quick Connect Line Set Changes Everything

  • Seven Steps Eliminated From Installation - Pre-charged and leak-proof design removes vacuuming, flaring, and charging procedures that traditionally consume hours of labor time.
  • Universal MRCOOL System Compatibility - Works seamlessly with Gen 2 Central Ducted Series and VersaPro Gen 2 Series across all capacity levels from 18K to 60K BTU.
  • Precision Pre-Charged Refrigerant - Factory-filled with exactly 1.94 ounces of R-454B refrigerant ensuring optimal system performance and efficiency from day one.
  • Superior Outdoor Protection - Gator-Flextra 3/4" insulation sleeve with UV protection defends against sun damage, weather degradation, and pest destruction.
  • Flexible Length Solutions - Four standard lengths available with coupler compatibility allowing custom extensions for any installation configuration.

 

Technical Specifications & Protection Features

  • R-454B Pre-Charged - Factory-filled with 1.94 ounces of R-454B refrigerant for precise system performance and simplified installation
  • 3/8" x 3/4" Line Dimensions - Professional-grade sizing compatible with MRCOOL Central Ducted and VersaPro Series systems
  • Kink-Resistant Construction - Engineered design allows easier bending and routing through tight spaces without compromising refrigerant flow
  • Leak-Proof Engineering - Sealed construction eliminates refrigerant loss and removes the need for traditional vacuuming procedures
  • Gator-Flextra 3/4" Insulation Sleeve - Heavy-duty insulation provides maximum thermal efficiency and physical protection
  • UV Protection Coating - Specialized sleeve coating resists sun damage and weather degradation for extended outdoor durability
  • Animal and Rodent Resistant - Reinforced insulation construction withstands pest damage that destroys conventional line sets
  • Quick Connect Valve System - User-friendly screw-on valves enable fast, secure connections without specialized tools or expertise
  • Coupler Compatible - Connect multiple line sets together to achieve custom lengths for unique installation requirements
  • Multiple Length Options Available - Choose from 15 ft, 25 ft, 35 ft, or 50 ft lengths to match your specific project needs

What's Included

Everything you need is included with your Line Set

  • Pre-charged refrigerant line set (3/8" x 3/4")
  • R-454B refrigerant (1.94 oz pre-charged)
  • Gator-Flextra UV protective insulation sleeve (3/4")
  • Quick connect screw-on valve fittings (both ends)
  • Installation Instructions and Safety Guidelines


MRCOOL Pre-Charged Quick Connect Line Set Features

  • No Vacuuming Required - Pre-charged, leak-proof design completely eliminates time-consuming vacuum procedures that require specialized equipment.
  • No Flaring Needed - Quick connect screw-on valves remove the need for flaring tools and technical expertise required by traditional line sets.
  • Seven Fewer Steps - Streamlined installation process saves hours of labor compared to conventional refrigerant line installation methods.
  • Simplified DIY Installation - User-friendly design makes professional-quality installation accessible to skilled homeowners without HVAC certification.
  • Faster Professional Jobs - Reduced installation time allows contractors to complete more installations per day, increasing productivity and profitability.

Understanding your MRCOOL warranty coverage ensures long-term system performance and protection. All warranties are non-transferable and valid only at the original installation address.

Warranty Coverage by Series

DIY Series 5th Generation Mini-Splits

Models: DIY-09-HP through DIY-36-HP, DIYCASSETTE, DIY-MULTI series

  • Parts: 5 years from proof of purchase
  • Compressor: 7 years from proof of purchase
  • Remote Control: Included in parts warranty
  • Extended Lifetime Warranty: Available with MRCOOL Care Kit Program enrollment (fee required)
  • Installation: Professional installer NOT required when using MRCOOL Quick Connect Pre-Charged Line Set

Advantage Series Mini-Splits

Models: A-09-HP through A-36-HP series

  • Parts: 1 year from proof of purchase
  • Compressor: 2 years from proof of purchase
  • Extended Lifetime Warranty: Available with MRCOOL Care Kit Program enrollment (fee required)

    Must register within 180 days of purchase
    Covers compressor failure only with one-time condenser replacement
    Requires ongoing Care Kit Program maintenance
Easy Pro Series Mini-Splits

Models: EZPRO-09-HP through EZPRO-24-HP series

  • Parts: 1 year from proof of purchase
  • Compressor: 2 years from proof of purchase
  • Extended Lifetime Warranty: Available with MRCOOL Care Kit Program enrollment (fee required)

Central Ducted Systems

Models: CENTRAL-18-HP through CENTRAL-60-HP, MVP Series

  • Parts: 10 years from installation date
  • Compressor: 10 years from installation date
  • Labor: 10 years (installer responsible for first 90 days)
  • Installation: Professional installer NOT required when using MRCOOL Quick Connect Pre-Charged Line Set

Universal Series Split Systems

Models: UHP series, UAH series Air Handlers

  • Parts: 10 years from proof of purchase
  • Compressor: 10 years from proof of purchase
  • Labor: 2 years limited (begins 91 days after purchase, covers diagnostic and repair costs)
  • Installation: Professional installer required

Inverter Package Series

Models: GCSHPM series, GCSCAM series

  • Parts: 10 years from installation date
  • Labor: 5 years limited (manufacturing defects only, begins 91 days after installation)
  • Installation: Professional installation required

Olympus Series Mini-Splits

Models: MDUO, MDUCO, MDUI series

Owner-Occupied Residences:

  • Parts: 5 years standard, 10 years with registration within 60 days
  • Compressor: 5 years standard, 10 years with registration within 60 days

Commercial Applications:

  • Parts & Compressor: 5 years with registration within 60 days
  • Installation: Professional installer required

Key Warranty Conditions

Product Registration:

  • Register at mrcool.com/warranty to activate extended coverage (where applicable)
  • Registration deadlines vary by series (30-180 days from purchase)

Installation Requirements:

  • Must comply with all federal, state, and local electrical codes
  • Must follow MRCOOL installation instructions
  • Must use new, compatible, MRCOOL-approved components
  • Warranty voids if installed with used or incompatible parts

Warranty Does NOT Cover:

  • Labor, diagnostic, shipping, or installation costs (except where labor warranty applies)
  • Normal maintenance (filter cleaning, lubrication, coil cleaning)
  • Refrigerant costs or energy consumption
  • Damage from improper installation, natural disasters, or electrical issues
  • Units moved from original installation address
  • Units installed outside USA and Canada

How to File a Warranty Claim

Contact MRCOOL:

For Labor Claims (Universal/Inverter Package Series within first 2 years):

  • Phone: (844) 518-2040

Required Documentation:

  • Proof of purchase
  • Product registration confirmation (if applicable)
  • Diagnostic testing results (professional HVAC technician may be required)
  • Defective parts must be returned when requested

For complete warranty terms and conditions, visit mrcool.com/warranty

Replacement parts are covered for the remainder of the original warranty period or 30 days, whichever is longer. Some states do not allow exclusion of incidental or consequential damages. This warranty gives you specific legal rights that may vary by state or province.

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MRCOOL Pre-Charged 3/8" x 3/4" No-Vac Quick Connect Line Set for Central Ducted and VersaPro Series - R-454B Reviews

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