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MRCOOL Coupler Kit For DIY Line Set
Air Handlers BTU
Length
Total: $425.00

No more long waits or unresponsive care!

Enjoy 24/7 support, personal follow-ups, and direct access to MrCool tech support for quick help with any system issues. Valid only for purchases made through our website.

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  • Product Description
  • Spec. & Dimensions
  • Reviews
  • Sizing Guide
  • Warranty & Manuals
  • Shipping Policy
  • FAQ

Product Overview:

The Line Set Coupler Kits from MRCOOL are specifically crafted for exclusive use with the DIY Mini-Split System, providing an ideal solution for homeowners looking to extend their system’s reach. These kits allow for the effortless connection of two separate line sets, offering a versatile and efficient way to customize the installation of your cooling system.

Versatile Connection Options:

Whether you're looking to combine a 50ft line set with a 25ft one or other lengths, these coupler kits are engineered for flexibility. They accommodate any combination of line sets as long as the total does not exceed the maximum allowable length of 75ft. This feature makes it ideal for installations that require a custom fit, ensuring that your mini-split system can be tailored to suit the specific layout and size of your home.

Secure and Reliable:

Each Line Set Coupler Kit is designed to ensure a secure, leak-free connection between line sets. This reliability is crucial for maintaining the efficiency and performance of your HVAC system, preventing any loss of cooling power or potential damage from refrigerant leaks.

Durable Components:

The kit includes a 75ft PRO Cable, known for its enhanced performance and longevity. This high-quality component ensures that your system operates at peak efficiency with a connection that’s not only strong but also built to last, providing peace of mind and reducing the need for frequent replacements.

Easy Installation:

Designed with the DIY enthusiast in mind, these coupler kits simplify the process of extending your mini-split system. The straightforward design ensures that homeowners can easily undertake the task without the need for professional help, making it a cost-effective and convenient option for enhancing your home’s cooling capabilities.

Ideal for Custom Installations:

MRCOOL’s Line Set Coupler Kits are an essential accessory for anyone looking to customize their DIY Mini-Split System. With the ability to handle various line set lengths and ensure a dependable connection, these kits are an invaluable tool for creating a highly effective and tailored cooling solution in your home.

  • Product Overview:

    The Line Set Coupler Kits from MRCOOL are specifically crafted for exclusive use with the DIY Mini-Split System, providing an ideal solution for homeowners looking to extend their system’s reach. These kits allow for the effortless connection of two separate line sets, offering a versatile and efficient way to customize the installation of your cooling system.

    Versatile Connection Options:

    Whether you're looking to combine a 50ft line set with a 25ft one or other lengths, these coupler kits are engineered for flexibility. They accommodate any combination of line sets as long as the total does not exceed the maximum allowable length of 75ft. This feature makes it ideal for installations that require a custom fit, ensuring that your mini-split system can be tailored to suit the specific layout and size of your home.

    Secure and Reliable:

    Each Line Set Coupler Kit is designed to ensure a secure, leak-free connection between line sets. This reliability is crucial for maintaining the efficiency and performance of your HVAC system, preventing any loss of cooling power or potential damage from refrigerant leaks.

    Durable Components:

    The kit includes a 75ft PRO Cable, known for its enhanced performance and longevity. This high-quality component ensures that your system operates at peak efficiency with a connection that’s not only strong but also built to last, providing peace of mind and reducing the need for frequent replacements.

    Easy Installation:

    Designed with the DIY enthusiast in mind, these coupler kits simplify the process of extending your mini-split system. The straightforward design ensures that homeowners can easily undertake the task without the need for professional help, making it a cost-effective and convenient option for enhancing your home’s cooling capabilities.

    Ideal for Custom Installations:

    MRCOOL’s Line Set Coupler Kits are an essential accessory for anyone looking to customize their DIY Mini-Split System. With the ability to handle various line set lengths and ensure a dependable connection, these kits are an invaluable tool for creating a highly effective and tailored cooling solution in your home.

  • MRCOOL DIY Mini Split Sizing Guide

    Which air handler is best for your room size?

    The size of your room is the main factor in choosing the right unit. MRCOOL DIY 4th Gen comes in various sizes, each designed to cool and heat specific square footage ranges.

    Here's a quick reference for choosing the right BTU based on your room size:

    • 9,000 BTU covers up to 375 square feet.
    • 12,000 BTU covers up to 550 square feet.
    • 18,000 BTU covers up to 800 square feet.
    • 24,000 BTU covers up to 1,050 square feet.
    • 36,000 BTU covers up to 1,550 square feet.

    How BTU Limits Work in Your Mini-Split System

    You can opt for high BTU air handlers for strong heating and cooling. But, if you plan to run multiple air handlers at the same time, consider the main unit's (condenser) maximum power.

    Here’s the deal: Suppose your condenser can handle 18,000 BTU, and you have two indoor air handlers, each at 12,000 BTU. If both run simultaneously, they’ll automatically adjust to 9,000 BTU each to match the condenser's limit. This ensures the system runs safely.

    If you usually run one air handler at a time, a lower BTU condenser might be sufficient. But if you plan to use all air handlers together, a higher BTU condenser is the way to go. This lets you enjoy the full power of each air handler without overloading the system.

    By considering these factors, you can ensure your MRCOOL DIY 4th Gen unit is perfectly sized for your needs, keeping you comfortable year-round.

    For personalized assistance or further clarification, please feel free to contact our customer support via chat or call. Our team is ready to help you make the best choice for your cooling needs.

  • DIY Multi-Zone Manuals

    MRCOOL DIY Mini Splits Warranty

    MRCOOL distributor (hereinafter “Company”) warrants this product against failure due to defects in materials or workmanship under normal use and maintenance as follows:

    • Standard Warranty: 5-year parts warranty and 7-year compressor warranty.
    • Limited Lifetime Compressor Warranty: Available if specific conditions are met.

    Conditions for Limited Lifetime Compressor Warranty:

    • Registration: The unit must be registered at the following web address: https://mrcool.com/warranty within 60 days of the installation date.
    • MrCool Care Program Enrollment: The original, registered owner must enroll in the MrCool Care program within 4 months from the installation date. This program requires a biannual fee and includes a DIY cleaning kit for regular maintenance.
    • Regular Maintenance: The unit must be cleaned biannually using the MrCool Care kit as part of the preventative maintenance to ensure proper function throughout its lifespan.

      Coverage Details:

      • Within the First 7 Years: If compressor failure occurs, verified by diagnostic testing performed by a certified HVAC technician, the warranty provides one entire unit replacement (equipment only).
      • After 7 Years: The limited lifetime compressor warranty covers the cost of a replacement compressor (equipment only).

      Important Notes:

      • The warranty does not cover any costs incurred for diagnosis or replacement of equipment.
      • If the original owner does not register the unit, the warranty defaults to the standard 5-year parts and 7-year compressor warranty.

      📑 DIY Multi-Zone Brochure

      📑 Quick Start Setup Guide

      📑 Installation Owner's Manual

      📑 Performance Specification

      📑 Troubleshooting Solution Guide

      📑 Remote Control User Manual

      📑 Ceiling Cassette Manual

      📑 Ceiling Cassette Specification

      📑 Warranty Statement

      📑 Multi-Zone AHRI Certifications: 18K BTU - 27K BTU - 36K BTU - 48K BTU

      📑 Multi-Zone Energy Guide Certifications: 18K BTU - 27K BTU - 36K BTU - 48K BTU

    1. Shipping and Delivery Policy: Important Information and Customer Responsibilities

      • Free shipping is only for kept orders. If customers want to return their items, they will need to pay for shipping back to us and the original shipping cost, as we do not get a refund for that.
      • Processing and shipping durations are approximate, and unforeseen setbacks may arise from circumstances like weather conditions, natural catastrophes, or logistical challenges.
      • Tracking information is typically available within 1-3 days after shipping. If the tracking number is not functional at the time you check, please wait 24 hours before contacting us as updates may take time.

      Journey to Delivery: A Two-Part Timeline

      1. Processing Time

        • Order verification takes on average 24 hours.
        • Accessories-only orders dispatch in 1-2 business days.
        • Complete system orders take 2-3 business days.

      2. Shipping Time

        • Accessories are typically delivered in 2-4 business days.
        • A complete system may take up to 7 business days, which can vary, especially in remote areas.

      Freight Shipments

      • Freight shipments may face delivery restrictions in residential areas due to factors such as narrow roads or restrictions on delivering to apartment buildings above the ground floor.
      • Deliveries are only made to the front of the building and not up the stairs to the door.
      • In the event of a missed delivery, any issues or extra costs incurred will be the responsibility of the customer.
      • To avoid any problems or returns, it is important for the customer to arrange delivery and be prepared to pick up the shipment at the shipping facility if a failed delivery attempt occurs.

      Customer Responsibilities

      • Customers are responsible for providing complete and accurate shipping addresses to FrosthubUSA.com.
      • We're unable to make changes to your shipping address once a package leaves our warehouse, and we're not liable for packages that are lost due to incomplete or inaccurate addresses.
      • All orders reported as "Delivered" by shipping companies are considered delivered, and FrosthubUSA.com cannot be held liable for non-delivery in this case.
      • If a delivery fails for any reason and the address provided by the customer was correct, FrosthubUSA.com cannot be held liable if a package is returned to our warehouse.
      • The order placed by the customer on our website is the order FrosthubUSA.com will ship to the customer. We cannot be held liable for the customer receiving the wrong item if they placed the wrong order.

      Equipment Arrival

      • Shipping transit times are not guaranteed and may vary depending on your delivery address.
      • Once your order arrives, make sure to inspect each and every item on the pallet. Count the number of items (boxes) on the shipment. Ensure your count matches the count printed on the delivery receipt before signing for your delivery.
      • Missing items or incorrect items that were noted on the delivery receipt must be reported within 24 hours of receiving your order by contacting our customer service department.
      • We reserve the right to reject any claim for missing items if not reported within the twenty-four-hour period.
      • After taking count of the pieces on your shipment, remove wrapping or boxes and inspect each item of equipment thoroughly in the presence of the driver.
      • Do not sign the delivery receipt until you have thoroughly inspected each item. Check all of the equipment to make sure it is not dented or badly scratched.
      • Make sure to mark the delivery receipt clear, short, wrap broken, or damaged after inspecting your shipment thoroughly.

      Making Notes on the Delivery Receipt

      • The customer is responsible for ensuring that the products being received are free of damages and/or shortages.
      • If the items or boxes on the shipment do not match the number listed on the delivery receipt, mark the receipt as short. A packing slip will be attached to the shipment for your reference. Ensure to note on the delivery receipt which items are missing.
      • We will work with the shipping company to track the missing items. Please allow up to 7 business days for the shipping company to locate your items.
      • If the shipping company is not able to locate the missing items, we will ship those items via standard ground shipping to you at no charge if the receipt was noted as short and the items that are missing are noted on the delivery receipt.
      • If the shrink wrap is torn or has been replaced during transit, mark the receipt as 'wrap broken'.

    2. Frequently Asked Questions

      There are two main types of MRCOOL Coupler Kits: #1 Universal Quick Connect Line Set Coupler Kit: This kit is designed to work with MRCOOL Universal Pre-Charged Line Sets. #2 DIY Quick Connect Line Set Coupler Kit: This comes in two versions: One for smaller BTU units (9k, 12k, and 18k) - (DIYCOUPLER-1412K) and another for larger BTU units (24k, 36k & 48k) - (DIYCOUPLER-3858K50)

      The Coupler Kit allows you to connect two separate MRCOOL pre-charged line sets. This effectively extends the total length by the combined length of the two lines you connect up to maximum 75 feet.

      No, the coupler itself should not affect the pre-charged refrigerant. MRCOOL Coupler Kits are designed for use with their pre-charged lines, so they maintain a closed loop system.

      The Coupler Kit is designed for DIY installations. The general installation process involves using wrenches to connect the coupler to the lines and then insulating the connections with the provided sleeves. However, if you're not comfortable with working with refrigerant lines, it's always recommended to consult a qualified HVAC technician.

    Free delivery All US mainland orders

    Free delivery All US mainland orders

    We match prices Fair pricing for everyone

    We match prices Fair pricing for everyone

    Authorized dealer Guaranteed genuine products

    Authorized dealer Guaranteed genuine products

    Free delivery All US mainland orders

    We match prices Fair pricing for everyone

    Authorized dealer Guaranteed genuine products