50 ft 1/2" x 3/4" Split AC Installation Kit for Large HVAC Systems
The DABUND 50 ft 1/2" x 3/4" split AC installation kit is a complete HVAC copper line set solution designed for large-capacity air conditioning systems, heat pumps, VRF/VRV systems, and commercial HVAC installations. It includes pre-insulated copper tubing and essential accessories for fast setup, reliable refrigerant flow, and long-term system durability.
This complete kit helps contractors, distributors, and HVAC installers reduce sourcing time, minimize installation errors, and complete split AC installation with matched components in one ready-to-use package.
Complete HVAC Installation Kit – All-in-One Solution
This split AC installation kit includes the key components needed for a professional HVAC installation. The copper pipes are pre-insulated and supplied with installation accessories to simplify onsite work and improve installation efficiency.
50 ft insulated copper line set: 1/2" liquid line + 3/4" suction line
Communication wire cable
3 m drain hose
Wall sleeve and decorative wall cover
Pre-flared ends with nuts
Essential accessories for split AC installation
Key Features of 1/2" x 3/4" Split AC Installation Kit
99.9% Pure Copper for High Performance
The copper tubing is manufactured from high-purity copper and can comply with ASTM B280 and C12200 requirements according to product specification. It provides excellent thermal conductivity, corrosion resistance, stable refrigerant transmission, and long service life for HVAC applications.
Pre-Flared Ends for Quick and Leak-Resistant Installation
Both pipe ends are factory-flared with nuts, helping reduce installation time, improve connection consistency, and minimize refrigerant leakage risks during split AC setup.
Multi-Layer Insulation for Maximum Protection
The insulation features a three-layer structure designed for thermal protection, moisture resistance, UV resistance, waterproofing, and long-term outdoor durability.
Outer layer: UV-resistant and anti-aging PE film
Middle layer: dense IXPE foam for thermal insulation
Inner layer: closed-cell structure for moisture resistance
Flame-Retardant and Certified Insulation
The insulation can meet ASTM E84, UL94, ASTM D1056, and ASTM G21 requirements according to selected material and specification. It is designed for fire safety, environmental resistance, and reliable long-term HVAC operation.
Technical Specifications
| Parameter | Details |
|---|
| Product Name | 50 ft 1/2" x 3/4" Split AC Installation Kit |
| Product Type | Complete HVAC copper line set solution |
| Liquid Line | 1/2 inch / 12.7 mm |
| Suction Line | 3/4 inch / 19.05 mm |
| Length | 50 ft / 15.24 m |
| Copper Material | 99.9% pure copper / C12200 |
| Copper Standard | ASTM B280 according to specification |
| Insulation Material | White PE / rubber foam options |
| Temperature Range | -40°C to 120°C |
| Insulation Features | UV-resistant, waterproof, shock-absorbing, flame-retardant options |
| Included Accessories | Communication cable, 3 m drain hose, wall sleeve, decorative cover, pre-flared ends with nuts |
| Common Capacity | 4.5–6 ton / 54,000–72,000 BTU systems, depending on equipment requirements |
| Application | Split AC, heat pump, commercial HVAC, VRF/VRV systems |
Applications – Designed for Large HVAC Systems
This 1/2" x 3/4" installation kit is designed for larger HVAC systems requiring higher refrigerant flow, strong insulation protection, and longer installation routing.
It is typically suitable for 4.5–6 ton or 54,000–72,000 BTU air conditioning systems when the HVAC equipment manufacturer specifies this line set size.

99.9% Pure Copper

White PE Insulated Pipe

Copper Nut
Pipe Insulation Tubing Features
The insulation tubing is designed for thermal protection, condensation control, moisture resistance, UV protection, and outdoor durability. It helps maintain refrigerant temperature and reduce energy loss during HVAC operation.


Thermal Insulation Pipe Production

Insulated Pipe Warehouse

Inner Layer Insulated Pipe
Benefits of Using a Complete Installation Kit
Faster Installation and Reduced Labor Cost
The kit includes matched components for split AC installation, reducing installation complexity and saving preparation time.
Improved Energy Efficiency
Pre-insulated copper tubing minimizes heat gain and heat loss, helping maintain refrigerant temperature and improve system performance.
Reduced Risk of Installation Errors
Matched line set components and accessories improve compatibility and reduce the risk of leakage, incorrect fitting, or missing installation parts.
Long-Term Durability
High-quality copper tubing and durable insulation materials help extend service life in residential, commercial, indoor, and outdoor HVAC environments.
OEM and Customization Services
DABUND provides flexible OEM and ODM solutions for HVAC distributors, wholesalers, contractors, importers, and private label brands.
Custom lengths: 3 m, 4 m, 5 m, 7 m, 10 m, 50 ft, or more
Custom pipe size combinations
Insulation thickness and material customization
Logo printing and branded packaging
Bulk supply for distributors and contractors

Split AC Installation Kit Size Options
| Size | Length | Insulation White PE | 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 |
Line Set Size and HVAC Capacity Reference
| Line Set Size | Common Ton / HP Range | Common BTU Range | Typical Application |
|---|
| 1/4 + 3/8 | 0.75 ton – 1.0 ton / 0.75P – 1P | 9000–12000 BTU / 9K–12K | Small mini split air conditioner |
| 1/4 + 1/2 | 1.5 ton – 2.0 ton / 1.5P – 2P | 12000–18000 BTU / 12K–18K | Medium mini split air conditioner |
| 1/4 + 5/8 | 2.0 ton – 2.5 ton / 2P – 2.5P | 24000–30000 BTU / 24K–30K | Split AC and heat pump system |
| 3/8 + 5/8 | 3.0 ton – 4.0 ton / 3P – 4P | 36000–48000 BTU / 36K–48K | Ductless commercial air conditioner |
| 3/8 + 3/4 | 4.5 ton – 6.0 ton / 4.5P – 6P | 54000–72000 BTU / 54K–72K | Large split AC installation |
| 3/8 + 7/8 | 6.0 ton – 8.0 ton / 6P – 8P | 72000–96000 BTU / 72K–96K | High-capacity ductless HVAC system |
Why Choose 50 ft 1/2" x 3/4" Split AC Installation Kit from DABUND?
DABUND has manufactured split AC installation kits since 2008, with experience in HVAC copper line set production, insulation processing, export supply, and bulk delivery for international customers.
Manufacturer of split AC installation kits since 2008
Experienced in producing and exporting HVAC copper line sets
Long-term freight forwarder cooperation for stable shipment
Weekly loading capability for container orders
Individual pre-insulated rolls for ductless mini splits, VRF, heat pumps, and unitary systems
Quality products with competitive pricing and professional service support
DABUND Factory
We produce insulated copper pipe, mini split line set, aluminum pipe, split AC installation kit, and HVAC parts for global HVAC customers.

SGS Certificate
DABUND mini split line set insulation can be made of polypropylene or black rubber with UV resistance and can meet ASTM E84, UL94, ASTM D1056, and ASTM G21 standards according to product specification.

Exhibition
DABUND joins HVAC exhibitions worldwide to help customers evaluate mini split line sets, split AC installation kits, insulated copper pipes, and HVAC parts face to face.

FAQ
What is included in a 50 ft split AC installation kit?
It includes insulated copper pipes, communication wire, drain hose, wall sleeve, decorative cover, pre-flared ends with nuts, and essential accessories needed for complete HVAC installation.
What size air conditioner uses a 1/2" x 3/4" line set?
This size is typically used for 4.5–6 ton or 54,000–72,000 BTU air conditioning systems. Final line set selection should always follow the HVAC equipment manufacturer’s installation manual.
Why choose a pre-flared copper line set?
Pre-flared ends simplify installation, reduce labor time, improve connection consistency, and help minimize refrigerant leakage risk.
What are the advantages of multi-layer insulation?
Multi-layer insulation improves thermal efficiency, prevents condensation, protects against UV exposure and moisture, and increases durability in indoor and outdoor HVAC environments.
Is this installation kit suitable for outdoor use?
Yes. The insulation is designed to be UV-resistant, waterproof, and flame-retardant according to selected product specification, making it suitable for outdoor environments.
Can this kit be used for commercial HVAC systems?
Yes. It is designed for residential and commercial HVAC applications, including large-capacity split AC, heat pump, and VRF/VRV systems when specifications match.
What standards does this copper tubing meet?
The copper tubing and insulation can meet ASTM B280, ASTM E84, UL94, ASTM D1056, and ASTM G21 requirements according to material and product specification.
Can I customize the AC installation kit?
Yes. DABUND supports OEM customization, including pipe size, length, insulation type, insulation thickness, logo printing, branding, and packaging customization.
Is 50 ft a good length for HVAC installation?
Yes. 50 ft is suitable for medium-distance split AC installations where indoor and outdoor units are moderately spaced. Installers should confirm maximum line length and refrigerant charge requirements before installation.
Who should buy this 50 ft 1/2" x 3/4" split AC installation kit?
It is suitable for HVAC contractors, split AC installers, commercial HVAC project buyers, distributors, wholesalers, importers, and private label HVAC brands.