-
DBJ-003
-
DABUND
-
Copper
-
1M - 10M
Material
Color
Keywords
Application
35 ft 1/4" x 1/2" Mini Split Air Conditioner Installation Kit for HVAC Systems
The 35 ft 1/4" x 1/2" Mini Split Air Conditioner Installation Kit from Dabund is a complete HVAC installation solution for ductless mini split systems, heat pumps, residential air conditioners, and light commercial HVAC projects. The kit includes a pre-insulated copper line set and essential installation accessories to help HVAC technicians complete installations quickly and efficiently.
This mini split installation kit uses 99.9% pure copper tubing that meets ASTM B280 and C12200 standards, delivering excellent refrigerant flow, high pressure resistance, corrosion resistance, and long service life in HVAC refrigeration applications.
Complete Mini Split Installation Kit with Essential HVAC Accessories
This 35 ft mini split air conditioner installation kit includes the core components needed to connect indoor and outdoor units in a ductless HVAC system. It is suitable for professional installers, HVAC contractors, wholesalers, distributors, and OEM buyers.
35 ft 1/4" + 1/2" insulated copper line set
Communication wire cable
3 m drain hose
Wall sleeve pipe
Decorative wall cover
Pre-flared copper pipe ends with flare nuts
Optional OEM packaging and accessory combination
These components help installers connect refrigerant lines, drainage, communication wiring, and wall penetration areas efficiently while maintaining safe refrigerant flow between the indoor and outdoor units.
Product Specifications
| Feature | Specification |
|---|---|
| Product Name | 35 ft 1/4" x 1/2" Mini Split Air Conditioner Installation Kit |
| Line Set Size | 1/4" Liquid Line + 1/2" Suction Line |
| Length | 35 ft / approximately 10.7 m |
| Copper Material | 99.9% Pure Copper |
| Copper Standards | ASTM B280, C12200 |
| Insulation Options | White PE Insulation / Black Rubber Insulation |
| Insulation Thickness | 8mm / 9mm / 10mm / 13mm / 19mm / 25.4mm |
| Included Accessories | Communication Wire, Drain Hose, Wall Sleeve, Wall Cover, Flare Nuts |
| Typical System Capacity | 1.5–2.0 Ton / 12,000–18,000 BTU depending on equipment requirements |
| Application | Mini Split AC, Heat Pump, Ductless HVAC, Residential and Light Commercial Systems |
High-Quality 99.9% Pure Copper Refrigeration Tubing
The copper pipes used in this mini split installation kit are manufactured from 99.9% pure copper, providing superior heat transfer, reliable refrigerant circulation, and long-term corrosion resistance.
Excellent refrigerant conductivity
High pressure tolerance for modern refrigerants
Long operational lifespan
Easy flaring and connection during installation
Stable performance for HVAC refrigeration line sets
Copper tubing remains the preferred material for HVAC refrigerant line sets because it combines thermal performance, durability, flexibility, and pressure stability.
Pre-Flared Copper Pipe Ends for Faster Installation
Both copper pipes in this mini split kit are pre-flared and equipped with flare nuts. This allows technicians to connect the refrigerant lines directly to compatible indoor and outdoor HVAC units.
Reduces installation time
Improves connection reliability
Helps lower refrigerant leakage risk when installed correctly
Simplifies installation for HVAC contractors
Suitable for professional mini split installation projects
High-Performance Pipe Insulation for Energy Efficiency
The copper tubing is protected by high-quality insulation that helps reduce energy loss, prevent condensation, and protect the refrigerant line from outdoor exposure and installation damage.
Available insulation materials include white PE insulation and black rubber insulation. Insulation thickness options include 8mm, 9mm, 10mm, 13mm, 19mm, and 25.4mm, giving buyers flexible solutions for different HVAC markets and project requirements.
Three-Layer Insulation Structure for Maximum Protection
Outer Layer
The outer layer uses UV-resistant polyethylene film to protect against sunlight, abrasion, aging, and general outdoor exposure.
Middle Layer
The middle layer uses high-density cross-linked PE foam to provide shock absorption, thermal insulation, and stable temperature protection.
Inner Layer
The inner closed-cell insulation structure helps prevent moisture penetration, reduce condensation, and maintain stable refrigeration line performance.
This insulation design helps improve HVAC system efficiency, protects the copper tubing, and extends the service life of the mini split line set.
99.9% Pure Copper
White PE Insulated Pipe
Copper Nut
Features of Pipe Insulation Tubing
The insulation tubing helps protect the copper refrigerant line from heat transfer, moisture, condensation, sunlight, and installation wear. High-density insulation is especially useful for maintaining energy efficiency in mini split and heat pump systems.
Thermal Insulation Pipe Production
Insulated Pipe Warehouse
Inner Layer Insulated Pipe
Wide Applications for Mini Split and HVAC Systems
The 1/4" x 1/2" mini split line set is commonly used in residential and light commercial HVAC installations where 12,000–18,000 BTU system capacity is required.
Ductless mini split air conditioners
Heat pump systems
VRF / VRV air conditioning systems
Residential HVAC installations
Light commercial cooling systems
Replacement and retrofit HVAC projects
This size is typically suitable for 1.5 ton to 2 ton mini split air conditioners, often used for 12,000 BTU to 18,000 BTU systems. Final sizing should always follow the HVAC equipment manufacturer’s installation manual.
Certified HVAC Insulation Materials for Safety and Reliability
The insulation used in this HVAC line set is tested according to international standards, helping ensure safe and reliable performance in global HVAC installation markets.
ASTM E84 fire performance test
UL 94 flame resistance standard
ASTM D1056 insulation material standard
ASTM G21 mold resistance test
These standards help the copper pipe insulation meet common HVAC safety, flame resistance, and durability requirements.
Flexible Copper Coil for Convenient Installation
The 35 ft copper line set provides enough length for many residential mini split installations. Flexible copper tubing helps installers route the refrigerant line through walls, ceilings, exterior walls, and tight installation areas.
Easy routing through walls or ceilings
Reduced need for additional connectors
Lower installation time and labor cost
Improved reliability with fewer joints
Suitable for professional HVAC contractors and installers
Mini Split Line Set Size Guide for HVAC Systems
| Line Set Size | Typical System Capacity | Common Application |
|---|---|---|
| 1/4" + 3/8" | 9,000–12,000 BTU | 0.75–1.0 Ton mini split air conditioner |
| 1/4" + 1/2" | 12,000–18,000 BTU | 1.5–2.0 Ton mini split or heat pump system |
| 1/4" + 5/8" | 24,000–30,000 BTU | 2.0–2.5 Ton split air conditioner system |
| 3/8" + 5/8" | 36,000–48,000 BTU | 3.0–4.0 Ton ductless air conditioner |
| 3/8" + 3/4" | 54,000–72,000 BTU | 4.5–6.0 Ton split AC installation |
| 3/8" + 7/8" | 72,000–96,000 BTU | 6.0–8.0 Ton ductless HVAC system |
Available Mini Split Air Conditioner Kit Sizes
| 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 |
Why Choose Dabund Mini Split Installation Kits?
Dabund is a professional HVAC manufacturer with extensive experience in producing copper line sets and air conditioning installation kits for international markets.
More than 14 years of HVAC manufacturing experience
Large-scale factory production capacity
Strict quality control inspection
Competitive factory pricing
Global export experience
OEM and ODM customization support
Dabund produces insulated copper pipes, mini split line sets, aluminum tubing, HVAC installation kits, and other HVAC accessories for global distributors, contractors, wholesalers, and brand owners.
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 35 ft 1/4" x 1/2" Mini Split Installation Kit
What is included in a 35 ft mini split air conditioner installation kit?
A 35 ft mini split air conditioner installation kit typically includes a pre-insulated copper line set, communication wire, drain hose, wall sleeve, wall cover, flare nuts, and related accessories needed to connect indoor and outdoor units.
What size mini split system uses a 1/4" x 1/2" line set?
A 1/4" liquid line and 1/2" suction line is commonly used for 12,000 BTU to 18,000 BTU mini split air conditioners, or approximately 1.5–2.0 ton systems. Always check the equipment installation manual before choosing a line set.
Why are copper pipes used in mini split installation kits?
Copper pipes are widely used for HVAC refrigerant line sets because they provide excellent thermal conductivity, pressure resistance, corrosion resistance, and smooth refrigerant flow. Copper is also easy to flare and connect during installation.
How long can a mini split line set last?
A high-quality mini split copper line set can last 20 years or more when installed correctly and protected with proper insulation. Service life also depends on environment, installation quality, and system maintenance.
Can the 35 ft copper line set be shortened during installation?
Yes. The insulated copper tubing can be cut to the required length based on the distance between indoor and outdoor units. Proper cutting, deburring, flaring, sealing, and pressure testing are required after trimming.
What type of insulation is used on mini split copper pipes?
Mini split line sets commonly use closed-cell PE foam or rubber insulation. These materials provide thermal protection, condensation resistance, UV resistance, flame resistance, and moisture protection for indoor and outdoor HVAC installations.
Is the copper pipe in the installation kit pre-flared?
Yes. The mini split installation kit can include pre-flared copper pipe ends and flare nuts, allowing HVAC technicians to connect the refrigerant lines more efficiently.
Can this mini split installation kit be used for heat pump systems?
Yes. Mini split installation kits are compatible with both ductless air conditioners and heat pump systems when the pipe size and system requirements match.
Is this kit suitable for residential and commercial HVAC systems?
Yes. The 35 ft 1/4" x 1/2" kit is suitable for homes, apartments, offices, retail stores, and small commercial spaces where compatible ductless HVAC systems are installed.
Why choose a professional HVAC line set manufacturer?
Working with a professional HVAC line set manufacturer helps ensure consistent copper quality, reliable insulation performance, OEM customization, strict quality control, and international certification support for contractors, distributors, and global buyers.
Can Dabund customize the kit for my brand?
Yes. Dabund supports OEM and ODM customization, including custom line set length, insulation thickness, insulation material, logo printing, packaging design, and accessory combinations.
Can I get samples before bulk ordering?
Yes. Dabund can provide samples for evaluation. Buyers usually need to cover the express shipping cost.
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.
