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DBJ-003
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DABUND
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Copper
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1M - 10M
Material
Color
Keywords
Application
50 ft 3/8" x 3/4" Mini Split Air Conditioner Installation Kit for HVAC Systems
The Dabund 50 ft 3/8" x 3/4" mini split air conditioner installation kit is a complete HVAC line set solution for ductless mini split systems, heat pumps, split air conditioners, and medium-to-large HVAC installations. It combines high-quality insulated copper tubing with essential installation accessories, helping HVAC contractors complete projects faster and more reliably.
This kit includes a 3/8 inch liquid line and a 3/4 inch suction line, with a 50 ft length for extended installation runs. It is suitable for larger residential systems, light commercial HVAC projects, and professional AC installation jobs where component compatibility and installation efficiency matter.
What Is a Mini Split Installation Kit?
A mini split installation kit is a ready-to-install package used to connect indoor and outdoor units in ductless air conditioning and heat pump systems. It reduces sourcing complexity by combining the key parts required for a standard HVAC installation.
Pre-insulated copper line set
Communication wire
Drain hose
Wall sleeve and wall cover
Flare nuts and installation accessories
By providing matched components in one package, the kit helps reduce installation errors, save labor time, and improve overall HVAC system installation efficiency.
Why Choose Dabund Brand Mini Split Installation Kit?
17+ Years of HVAC Manufacturing Experience
Dabund has manufactured HVAC components since 2008, including mini split line sets, insulated copper pipes, air conditioner installation kits, aluminum pipes, and HVAC accessories for global buyers.
Complete One-Stop HVAC Solution
The complete kit helps HVAC buyers reduce sourcing complexity, save installation time, lower labor costs, and ensure better compatibility between line set, drain hose, wire, wall sleeve, and cover.
Designed for Professional Installers and Distributors
This product is built for HVAC technicians, installation contractors, wholesalers, importers, distributors, and private-label brands that need consistent quality and stable supply.
What Makes a High-Quality Mini Split Installation Kit?
A professional mini split installation kit should include durable refrigerant tubing, reliable insulation, complete accessories, and compatibility with standard HVAC systems.
High-purity copper tubing with 99.9% copper content
Durable insulation with UV resistance and condensation protection
Complete accessory set for professional installation
Easy-to-install design for contractors and technicians
Compatibility with mini split, ductless HVAC, and heat pump systems
OEM and ODM customization support for global buyers
Dabund kits are engineered for installation efficiency, durability, refrigerant flow stability, and long-term HVAC system performance.
99.9% Pure Copper
Black Rubber Insulated Pipe
Flaring
Features of Black Rubber Pipe Insulation Tubing
The black rubber insulation provides thermal protection, moisture resistance, and condensation control for refrigerant lines. It works as both an insulation layer and a moisture-proof layer, helping reduce the need for additional vapor barrier protection in many HVAC installations.
Material: black rubber insulation
Temperature range: -40°C to 120°C
Moisture and condensation resistance
Thermal insulation and moisture barrier in one structure
Suitable for indoor and outdoor HVAC installation environments
Key Features of Dabund 50 ft Mini Split Installation Kit
High-Quality Copper Line Set: 3/8" + 3/4"
The kit includes a 3/8" liquid line and 3/4" suction line, with a 50 ft length for extended installations. This size is commonly used for medium-to-large HVAC systems where stable refrigerant flow is required.
3/8" liquid refrigerant line
3/4" suction refrigerant line
50 ft length for longer indoor-to-outdoor unit distance
99.9% pure copper tubing
Pre-insulated design for faster installation
Multi-Layer Insulated Copper Tubing
The insulated copper tubing is designed to reduce heat transfer, prevent condensation, and protect the refrigerant line from outdoor exposure. The structure can include a UV-resistant outer layer, high-density foam insulation, and a closed-cell inner structure.
Complete Installation Accessories Included
The kit includes common installation accessories such as communication wire, drain hose, wall sleeve, decorative wall cover, and related installation parts. This provides a ready-to-install solution and reduces additional purchasing work.
High Pressure and Temperature Resistance
The copper tubing supports a pressure rating of 2100–7000 PSI and insulation temperature range of -40°C to 120°C, making the kit suitable for modern refrigerants and demanding installation environments.
Best Line Set Size for Medium-to-Large Mini Split Systems
The 3/8" x 3/4" mini split line set is typically used for larger ductless HVAC systems, heat pumps, and split air conditioners. It is commonly matched with approximately 4.5–6.0 ton or 54,000–72,000 BTU systems depending on the equipment requirements.
Some projects may use this configuration for medium-to-large systems around 36,000–60,000 BTU depending on the brand and installation manual. Final sizing should always follow the HVAC equipment manufacturer’s specification.
Applications of Dabund Mini Split Installation Kit
Ductless Mini Split Systems
This kit is suitable for ductless mini split systems used in homes, apartments, offices, shops, and light commercial spaces.
Heat Pump Systems
The insulated copper line set helps support efficient heating and cooling refrigerant transfer in compatible heat pump systems.
Commercial HVAC Projects
The 50 ft length and 3/8" x 3/4" copper tube size make it suitable for medium-to-large capacity HVAC installation projects where longer refrigerant line runs are needed.
Why Installation Kits Improve HVAC Efficiency
Using a complete mini split installation kit helps reduce installation errors and improve project efficiency because the main components are packaged together and designed to work as a compatible system.
Reduces installation errors
Improves component compatibility
Supports better refrigerant flow and system efficiency
Saves time and labor cost
Reduces additional procurement work
Supports cleaner and more professional installation
Technical Specifications
| Parameter | Details |
|---|---|
| Brand | Dabund |
| Product Name | 50 ft 3/8" x 3/4" Mini Split Air Conditioner Installation Kit |
| Line Set Size | 3/8" Liquid Line + 3/4" Suction Line |
| Length | 50 ft |
| Material | 99.9% Pure Copper |
| Insulation | PE / Black Rubber Insulation Options |
| Pressure Rating | 2100–7000 PSI |
| Temperature Range | -40°C to 120°C |
| Included Accessories | Communication Wire, Drain Hose, Wall Sleeve, Decorative Cover, Installation Accessories |
| Application | Mini Split AC, Heat Pump, Ductless HVAC, Split Air Conditioner, Light Commercial HVAC |
Available Mini Split Air Conditioner Kit Sizes
| Size | Length | Insulation Black Rubber | Flame Resistant |
| 1/4" + 3/8" | 3m / 4m / 5m / 7m / 10m | 8mm / 9mm / 10mm / 13mm / 19mm / 25.4mm | M1 / B1 |
| 1/4" + 1/2" | 3m / 4m / 5m / 7m / 10m | 8mm / 9mm / 10mm / 13mm / 19mm / 25.4mm | M1 / B1 |
| 1/4" + 5/8" | 3m / 4m / 5m / 7m / 10m | 8mm / 9mm / 10mm / 13mm / 19mm / 25.4mm | M1 / B1 |
| 3/8" + 5/8" | 3m / 4m / 5m / 7m / 10m | 8mm / 9mm / 10mm / 13mm / 19mm / 25.4mm | M1 / B1 |
| 3/8" + 3/4" | 3m / 4m / 5m / 7m / 10m | 8mm / 9mm / 10mm / 13mm / 19mm / 25.4mm | M1 / B1 |
| 1/2" + 3/4" | 3m / 4m / 5m / 7m / 10m | 8mm / 9mm / 10mm / 13mm / 19mm / 25.4mm | M1 / B1 |
| 3/8" + 7/8" | 3m / 4m / 5m / 7m / 10m | 8mm / 9mm / 10mm / 13mm / 19mm / 25.4mm | M1 / B1 |
Mini Split Line Set Size Guide
| Line Set Size | Typical Ton Range | Typical BTU Range | Common Application |
|---|---|---|---|
| 1/4" + 3/8" | 0.75–1.0 Ton | 9,000–12,000 BTU | Small mini split air conditioner |
| 1/4" + 1/2" | 1.5–2.0 Ton | 12,000–18,000 BTU | Residential mini split system |
| 1/4" + 5/8" | 2.0–2.5 Ton | 24,000–30,000 BTU | Medium split air conditioner system |
| 3/8" + 5/8" | 3.0–4.0 Ton | 36,000–48,000 BTU | Large residential or light commercial HVAC |
| 3/8" + 3/4" | 4.5–6.0 Ton | 54,000–72,000 BTU | Commercial split AC installation |
| 3/8" + 7/8" | 6.0–8.0 Ton | 72,000–96,000 BTU | Large ductless HVAC system |
How to Choose the Right Mini Split Installation Kit Supplier
When selecting a mini split installation kit supplier, buyers should evaluate production experience, product quality, certification support, accessory completeness, customization ability, and delivery reliability.
Manufacturing experience in HVAC line sets and installation kits
Reliable copper quality and insulation performance
Complete accessory availability
OEM and ODM customization capability
Stable export packaging and delivery support
Quality control for bulk production
Dabund offers factory-direct pricing, strict quality control, OEM and ODM support, complete HVAC kit solutions, and reliable global shipping for importers, distributors, wholesalers, and HVAC brands.
Dabund Manufacturing Advantages
Large Production Capacity
Dabund operates with factory production capability for insulated copper pipes, mini split line sets, air conditioner installation kits, aluminum pipes, and HVAC parts. Large-scale output supports stable bulk supply and faster delivery timelines.
OEM and ODM Customization
Dabund supports custom branding, tailored kit configurations, packaging customization, insulation printing, line set length customization, and private label production for HVAC brands.
Global Export Experience
Dabund supplies HVAC customers worldwide with stable product quality, export packaging, shipment support, and complete product combinations for different installation markets.
Why Global Buyers Choose Dabund HVAC Kits
Consistent product quality
Competitive factory pricing
Complete HVAC installation solutions
Reliable delivery
OEM and ODM flexibility
Reduced procurement complexity for buyers
Packaging and Delivery
Standard export packaging
Custom packaging available
Private label packaging support
Usual delivery time: 15–20 days
Faster delivery arrangement can be discussed for urgent orders
Dabund Factory
Dabund produces insulated copper pipe, mini split line set, aluminum pipe, and HVAC parts for global HVAC buyers.
SGS Certificate
Mini split line set insulation can be made of polypropylene or black rubber with UV resistance and compliance with ASTM E84, UL94, ASTM D1056, and ASTM G21.
Exhibition and Global Market Experience
Dabund joins international exhibitions to help customers inspect mini split line sets, installation kits, insulated copper pipes, and HVAC parts face to face.
FAQ About 50 ft 3/8" x 3/4" Mini Split Installation Kit
What is included in this 50 ft mini split installation kit?
This kit includes a 50 ft 3/8" x 3/4" insulated copper line set, communication wire, drain hose, wall sleeve, decorative wall cover, and related installation accessories for connecting indoor and outdoor HVAC units.
What system is this 3/8" x 3/4" kit suitable for?
The 3/8" x 3/4" line set is commonly used for larger mini split and HVAC systems. Depending on the equipment brand, it may be used for systems around 36,000–72,000 BTU. Always confirm with the HVAC equipment manufacturer’s installation manual.
Is the copper tubing pre-insulated?
Yes. The copper tubing is pre-insulated with PE or black rubber insulation options to improve thermal efficiency, reduce condensation, and protect the line set during indoor and outdoor installation.
Can this mini split installation kit be customized?
Yes. Dabund supports OEM and ODM customization, including line set length, copper tube size, insulation material, insulation thickness, logo printing, accessory combination, and packaging design.
Can this kit be used for heat pump systems?
Yes. The kit can be used for compatible heat pump systems when the line set size, refrigerant type, and system capacity match the equipment specifications.
Why choose a complete installation kit instead of separate parts?
A complete kit reduces sourcing work, improves component compatibility, saves installation time, and helps contractors complete HVAC projects more efficiently.
What are your payment terms?
Common payment terms include T/T, L/C at sight, credit card, and other agreed payment methods based on order details.
What are your delivery terms?
Dabund can support EXW, FOB, CFR, CIF, and other international delivery terms according to customer requirements.
Are you a trading company or manufacturer?
Dabund is a manufacturer of mini split installation kits, insulated copper line sets, HVAC copper tubing, aluminum pipes, and HVAC parts.
Can I get free samples before bulk ordering?
Yes. Dabund can provide samples for evaluation. Buyers usually need to cover the express shipping cost.
Can I print my logo on the product or packaging?
Yes. Dabund accepts OEM and ODM orders, including logo printing, insulation printing, custom label design, and private label packaging.
How long is your delivery time?
The usual delivery time is 15–20 days. For urgent orders, Dabund can discuss faster production and delivery arrangements according to order quantity and current production schedule.
