10 ft 3/8" x 3/4" Mini Split Installation Kit

10 Ft 3/8" x 3/4" Mini Split Installation Kit

The DABUND 10 ft 3/8" x 3/4" mini split installation kit combines a paired pre-insulated copper refrigerant line set with commonly required installation accessories for compatible ductless air conditioners, heat pumps and HVACR systems. The copper tubing includes a 3/8-inch liquid line and a 3/4-inch suction line in an approximately 3.05-meter length.

The standard kit configuration can include factory-flared copper tube ends with flare nuts, black closed-cell insulation, communication cable, condensate drain hose, wall sleeve, wall cover and installation accessories. Final contents, cable specification, connector type and packaging should be confirmed in the quotation because kit configurations can be customized for different equipment brands and destination markets.

Compatibility notice: A 3/8-inch liquid line and 3/4-inch suction line are not suitable for every mini split system. Before ordering, verify the required tube diameters, copper wall thickness, flare thread, cable specification, drain connection, refrigerant, maximum line length and additional refrigerant charge in the equipment manufacturer’s installation manual.

10 Ft Mini Split Installation Kit Specifications

What Is Included in the Mini Split Installation Kit?

Pre-insulated copper line set: One 3/8-inch copper tube and one 3/4-inch copper tube, each approximately 10 feet long, are supplied as the refrigerant connection between compatible indoor and outdoor units.

Factory-flared ends and flare nuts: Both copper lines can be supplied with pre-flared ends and nuts to reduce on-site preparation. The flare dimensions, thread and nut material must match the connected equipment.

Communication cable: Cable can be included for the electrical or communication connection between indoor and outdoor units. Conductor count, gauge, voltage rating, approvals and terminal configuration must be specified by the buyer.

Condensate drain hose: An approximately 3-meter drain hose can be supplied to route condensate from the indoor unit. Confirm the required inner diameter, connector and installation slope.

Wall sleeve and cover: A wall sleeve and decorative cover help protect and finish the wall penetration through which the tubing, cable and drain hose pass.

Additional accessories: Wrapping tape, sealing material, cable ties, putty and other components can be added according to the required installation-kit configuration.

Key Features of the 3/8 x 3/4 Installation Kit

ASTM B280 copper tubing: The C12200 DHP copper tubes are designed for air-conditioning and refrigeration field service and provide the formability required for routing and professional HVAC installation.

Short 10-foot installation length: The approximately 3.05-meter line set is suited to compatible installations where the indoor and outdoor units are positioned relatively close together. Verify the equipment manufacturer’s minimum and maximum line-length requirements.

Pre-flared connection option: Factory flaring can reduce preparation time and help standardize kit assembly, but every flare must still be inspected, aligned and tightened to the equipment manufacturer’s specified torque.

Integrated accessory supply: Combining refrigerant tubing, cable, drainage and wall-penetration components simplifies sourcing for distributors, equipment brands and installation-kit sellers.

OEM and private-label packaging: DABUND can configure kit contents, component specifications, labels, manuals and cartons for different brands and regional markets.

Copper Tube, Insulation and Flared Connections

The kit uses seamless copper tubing for the refrigerant circuit. When specified by the connected equipment, the 3/8-inch tube functions as the liquid line and the 3/4-inch tube functions as the suction or gas line. The final arrangement must follow the equipment piping diagram.

Black closed-cell insulation helps reduce heat transfer and surface condensation. Outdoor sections, insulation joints and cut ends should be sealed and protected according to local codes, climate conditions and the selected insulation specification.

Pre-flared ends can make assembly more efficient, but they do not eliminate the need for professional inspection. Damaged, misaligned or incorrectly torqued flares can leak refrigerant. Installation should include pressure testing and evacuation before commissioning.

C12200 Copper Tubing

Black Closed-Cell Insulation

Factory-Flared Ends

Black Closed-Cell Insulation Performance

Condensation control: The closed-cell structure helps reduce water-vapor transmission and surface condensation when joints and exposed ends are sealed correctly.

Thermal protection: Insulation helps limit unwanted heat transfer between the refrigerant tubing and the surrounding environment.

Installation protection: The insulation helps protect soft copper tubing from abrasion and minor impact during packing, transport and routing.

Available grades: Black insulation thickness options include approximately 13 mm, 17 mm, 19 mm and 25.4 mm. White PE options are also available in 8 mm, 9 mm, 10 mm, 13 mm, 19 mm and 25.4 mm.

Test-report options: Applicable insulation configurations may be supplied with documentation referencing ASTM E84, UL 94, ASTM D1056 or ASTM G21. Request the report matching the exact material, thickness and product configuration ordered.

Equipment Compatibility and Installation Requirements

A 3/8-inch liquid line paired with a 3/4-inch suction line is specified by selected mini split, heat-pump and HVAC systems. It should not be selected solely by BTU or tonnage because tubing requirements vary by equipment brand, model, refrigerant, route length and vertical lift.

The supplied cable must match the equipment’s electrical diagram, conductor count, gauge, voltage rating and regulatory requirements. The drain hose diameter and route must also match the indoor unit and maintain the required slope for reliable condensate drainage.

Installation should be completed by qualified HVAC personnel and include flare inspection, torque-controlled tightening, nitrogen pressure testing, leak testing, evacuation and refrigerant commissioning according to the equipment instructions and local regulations.

Available Installation Kit Sizes and Lengths

DABUND supplies multiple copper tube combinations, installation lengths and insulation thicknesses. Popular kit lengths include 3 m, 4 m and 5 m, while 7 m and 10 m kits are available for markets and projects requiring longer routes.

OEM Mini Split Installation Kit Manufacturer

DABUND has manufactured insulated copper tubing, mini split line sets and HVAC installation accessories since 2008. Buyers can source a coordinated kit rather than purchasing each component from separate suppliers.

OEM options include copper tube size and wall thickness, line-set length, insulation material and thickness, flare nuts, cable specification, drain hose, wall sleeve, decorative cover, wrapping materials, labels, manuals and carton artwork.

For an accurate quotation, provide the equipment model or detailed component specification, refrigerant, working pressure, flare thread, cable requirements, accessory list, packaging design, order quantity and destination port.

Why Choose DABUND?

Integrated HVAC component supply: Copper line sets, insulation and installation accessories can be configured and packed as one coordinated product.

Manufacturing experience: DABUND has produced HVAC parts since 2008 and supplies products for international distributors, contractors and equipment brands.

Flexible customization: The tube dimensions, cable, drainage components, wall accessories, printed identification and packaging can be adapted to target-market requirements.

Sample support: Qualified buyers can request samples to evaluate the copper tubing, flares, insulation, accessories and packaging before bulk production.

Quality Documents and Test Reports

The applicable certificate or test report depends on the exact copper tube, insulation, cable and accessory configuration ordered. Buyers should request current documents matching the selected product specification and destination-market requirements.

Available documentation may reference ASTM B280 for copper tubing and ASTM E84, UL 94, ASTM D1056 or ASTM G21 for applicable insulation configurations. Cable approvals and electrical ratings must be confirmed separately for the ordered cable specification.

Meet DABUND at HVAC Exhibitions

DABUND participates in international HVAC exhibitions where distributors, equipment brands and project buyers can inspect mini split installation kits, insulated copper line sets and related air-conditioning accessories.

Frequently Asked Questions

What is included in the 10 ft 3/8 x 3/4 mini split installation kit?

The standard configuration can include a 10-foot 3/8-inch and 3/4-inch pre-insulated copper line set, factory-flared ends with nuts, communication cable, approximately 3 meters of drain hose, a wall sleeve, wall cover and installation accessories. Confirm the final bill of materials in the quotation.

Is a 3/8 x 3/4 line set suitable for every mini split?

No. It is suitable only for equipment that specifies a 3/8-inch liquid line and a 3/4-inch suction line. Check the equipment manual for pipe diameters, wall thickness, flare thread, refrigerant and permitted line length.

Are both ends of the copper tubing pre-flared?

The kit can be supplied with factory-flared ends and flare nuts on both copper tubes. The flare geometry and thread must be confirmed against the connected indoor and outdoor units before ordering.

Does a pre-flared line set eliminate the need for leak testing?

No. Every flare should be inspected and tightened to the specified torque. The completed system still requires pressure testing, leak testing and evacuation before refrigerant commissioning.

What cable is included with the installation kit?

Cable specifications are customizable. Buyers should specify conductor count, conductor size, voltage rating, insulation type, approvals, length and whether terminals or connectors are required.

What is the purpose of the drain hose?

The drain hose carries condensate away from the indoor unit. It must match the unit’s drain connection and be installed with the correct continuous slope to prevent water backup or leakage.

Why is ASTM B280 important for the copper line set?

ASTM B280 specifies requirements for seamless copper tube intended for air-conditioning and refrigeration field service. It gives buyers a recognized basis for defining ACR copper tube material and dimensional quality.

Is the installation kit compatible with R410A or R32 systems?

Compatibility depends on copper wall thickness, pressure rating, flare fittings, cleanliness, cable specification and the equipment requirements. State the refrigerant and working pressure when requesting a quotation.

Can DABUND customize the accessories in the kit?

Yes. The copper line set, insulation, cable, drain hose, wall sleeve, cover, wrapping tape, sealing material, connectors, labels and packaging can be customized according to the buyer’s specification.

Can I order private-label packaging?

Yes. DABUND supports OEM and ODM packaging, including branded cartons, product labels, manuals, barcodes, tube markings and customized accessory arrangements.

Can I request a sample before a bulk order?

Yes. Qualified buyers can request free samples, with express freight normally paid by the buyer. Provide the complete kit specification required for evaluation.

What information is needed for a quotation?

Provide the equipment model or required tube sizes, copper wall thickness, line length, insulation, flare details, cable specification, drain hose size, accessory list, packaging, quantity, certification requirements and destination port.

What payment and delivery terms are available?

Common payment options include T/T, L/C at sight and credit card, subject to order approval. Delivery terms can include EXW, FOB, CFR and CIF. Final commercial terms should be confirmed in the quotation.

How long is the production lead time?

A typical production lead time is approximately 15 to 20 days. The final schedule depends on order quantity, component customization, cable and accessory availability, packaging requirements and current production capacity.