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DBJ-003
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DABUND
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Copper
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1M - 50M
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1/4,3/8,1/2,5/8,3/4,7/8,1,1-1/8
Material
Color
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Application
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Usage
Package
100 ft 3/8 in. x 5/8 in. Mini Split Long Line Set
DABUND 100 ft 3/8 in. x 5/8 in. Mini Split Long Line Set provides a continuous pre-insulated copper refrigerant piping solution for compatible ductless mini split, heat-pump and HVAC installations requiring extended routing distance.
The line set includes a 3/8 in. liquid line and 5/8 in. suction line with factory-applied insulation. Its 100 ft length equals approximately 30.48 m, allowing longer routing between compatible indoor and outdoor HVAC equipment.
The refrigerant tubing is manufactured from 99.9% pure copper. The featured product configuration uses White PE insulation designed to help reduce heat transfer, control condensation and protect the tubing during compatible indoor and outdoor installations.
Quick Answer: This 100 ft 3/8 x 5/8 mini split line set provides a continuous pre-insulated copper piping run for compatible extended-distance ductless AC and heat-pump installations.
100 ft 3/8 x 5/8 Line Set Specifications
| Product Type | Pre-Insulated Mini Split Long Line Set |
| Line Set Size | 3/8 in. x 5/8 in. |
| Liquid Line | 3/8 in. |
| Suction Line | 5/8 in. |
| Length | 100 ft / 30.48 m |
| Copper Material | 99.9% Pure Copper |
| Insulation | Factory-applied insulation; White PE configuration shown |
| Insulation Structure | Closed-cell, UV-resistant configuration |
| Application | Compatible mini split AC, ductless HVAC and heat-pump systems |
100 ft Mini Split Long Line Set Video
Why Choose a 100 ft Mini Split Line Set?
Extended 100 ft Refrigerant Piping Run
The 100 ft continuous line set provides additional routing flexibility where the indoor and outdoor units are separated by a significant distance.
Typical extended layouts may include multi-story buildings, rooftop outdoor units and installations requiring long horizontal piping routes.
Fewer Intermediate Connections
Using one continuous 100 ft refrigerant piping run can reduce the number of intermediate couplings compared with joining multiple shorter sections.
Fewer field connections can simplify routing and reduce the number of potential connection points that require installation and inspection.
Cleaner Long-Run Installation
A continuous long line set can provide a cleaner piping route in projects where the system layout requires significant distance between indoor and outdoor equipment.
99.9% Pure Copper Refrigerant Tubing
The 100 ft line set uses 99.9% pure copper tubing for compatible HVAC refrigerant piping applications.
Copper provides the flexibility required for routing while supporting refrigerant transfer between compatible indoor and outdoor equipment.
Always confirm that the HVAC equipment manufacturer specifies 3/8 in. liquid-line and 5/8 in. suction-line dimensions before ordering.
Pre-Insulated Copper Line Set
Factory-applied insulation helps reduce heat gain or heat loss across long refrigerant piping runs while limiting condensation around cold tubing surfaces.
Pre-insulation also reduces the amount of insulation wrapping required during field installation.
Copper Line Set and Insulation Video
99.9% Pure Copper
White PE Insulation
Protective Plastic Cap
White PE Insulation Construction
White PE insulation configurations are available for DABUND mini split line sets and are designed for compatible indoor and outdoor HVAC installations.
Insulation Production and Structure
Insulation Pipe Production
Insulation Pipe Warehouse
Inner Insulation Layer
100 ft White PE Copper Line Set
The featured White PE configuration combines pre-insulated refrigerant tubing with an extended 100 ft coil for long HVAC piping layouts.
Available Mini Split Line Set Sizes
| Line Set Size | Available Lengths | White PE Insulation | Listed Flame-Resistance Options |
|---|---|---|---|
| 1/4 + 3/8 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 1/4 + 1/2 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 1/4 + 5/8 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 3/8 + 5/8 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 3/8 + 3/4 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 1/2 + 3/4 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 3/8 + 7/8 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
General Line Set Size and Capacity Reference
The following capacity ranges are general references for the DABUND mini split line set family. Final refrigerant piping dimensions must follow the HVAC equipment manufacturer's requirements.
| Line Set Size | General Ton Reference | General BTU Reference |
|---|---|---|
| 1/4 + 3/8 in. | 0.75–1.0 Ton | 9,000 / 12,000 BTU |
| 1/4 + 1/2 in. | 1.5–2.0 Ton | 12,000 / 18,000 BTU |
| 1/4 + 5/8 in. | 2.0–2.5 Ton | 24,000 / 30,000 BTU |
| 3/8 + 5/8 in. | 3.0–4.0 Ton | 36,000 / 48,000 BTU |
| 3/8 + 3/4 in. | 4.5–6.0 Ton | 54,000 / 72,000 BTU |
| 3/8 + 7/8 in. | 6.0–8.0 Ton | 72,000–96,000 BTU |
Important Considerations for a 100 ft Line Set
Verify Maximum Refrigerant Line Length
Before using a 100 ft line set, confirm that the HVAC equipment manufacturer permits the required refrigerant piping length.
Check Maximum Elevation Difference
Confirm the permitted vertical elevation difference between the indoor and outdoor units, especially for multi-story or rooftop installations.
Check Additional Refrigerant Requirements
Long refrigerant piping runs may require additional refrigerant according to the equipment manufacturer's charging instructions.
Confirm the Required Tube Sizes
Always confirm that the equipment specifies a 3/8 in. liquid line and 5/8 in. suction line. Do not select refrigerant piping based only on system capacity.
Support Long Refrigerant Runs
Long piping routes should be properly supported with suitable clips, brackets or other approved supports to reduce sagging, vibration and mechanical strain.
Typical HVAC Applications
Ductless mini split air conditioners
Ductless heat-pump systems
Multi-story HVAC installations
Rooftop outdoor unit installations
Long horizontal refrigerant piping routes
Residential and light commercial HVAC applications
Refrigerant Compatibility
The product information lists use with common HVAC refrigerants including R410A and R32.
Final refrigerant compatibility, allowable pressure, pipe dimensions and maximum piping length must be verified against the specific HVAC equipment manufacturer's technical requirements.
DABUND Mini Split Line Set Factory
DABUND manufactures insulated copper pipe, mini split line sets, aluminum pipe and related HVAC installation products for distribution and project supply.
Insulation Test Documentation
DABUND maintains test documentation for applicable insulation configurations, with references including ASTM E84, UL94, ASTM D1056 and ASTM G21.
Insulation materials and applicable test documentation can vary by configuration. Buyers requiring specific certification should confirm the exact insulation material, thickness and supporting reports before ordering.
International HVAC Exhibitions
DABUND participates in international HVAC exhibitions where distributors and professional buyers can review insulated copper line sets and related HVAC installation products.
Frequently Asked Questions
What size copper tubing is included in this line set?
This line set uses a 3/8 in. liquid line and 5/8 in. suction line.
How long is this mini split line set?
The line set is 100 ft long, equivalent to approximately 30.48 m.
What copper material is used?
The refrigerant tubing is listed as 99.9% pure copper.
Is this 100 ft line set pre-insulated?
Yes. The product is supplied with factory-applied insulation.
What insulation configuration is shown on this product?
The featured product images show a White PE insulated configuration.
What insulation thicknesses are available?
Listed White PE insulation options include 8 mm, 9 mm, 10 mm, 13 mm, 19 mm and 25.4 mm.
When should I choose a 100 ft long line set?
A 100 ft line set can be useful where the indoor and outdoor units are separated by a substantial distance, including multi-story buildings, rooftop installations and long horizontal piping routes.
Can every mini split use a 100 ft line set?
No. The equipment manufacturer must permit the required piping length, elevation difference and refrigerant charge. Always check the installation manual before using a 100 ft line set.
What size system can use a 3/8 x 5/8 line set?
The product family lists 3/8 in. x 5/8 in. as a general reference for some 3–4 ton or 36,000–48,000 BTU systems. Final line sizing must follow the equipment manufacturer's requirements.
Is this line set listed for R410A and R32 applications?
The product information lists compatibility with common HVAC refrigerants including R410A and R32. Final suitability should be verified against the equipment manufacturer's specifications.
Does a 100 ft line set require additional refrigerant?
Additional refrigerant may be required depending on the HVAC equipment and total piping length. Follow the equipment manufacturer's charging instructions.
Can one 100 ft line set reduce the number of connections?
Yes. A continuous long line set can reduce the need to join multiple shorter sections, depending on the project layout.
What other line set sizes are available?
Available combinations include 1/4 + 3/8, 1/4 + 1/2, 1/4 + 5/8, 3/8 + 5/8, 3/8 + 3/4, 1/2 + 3/4 and 3/8 + 7/8 in.
What other production lengths are available?
Listed production lengths include 15 m, 20 m, 25 m, 30 m and 50 m.
Can DABUND provide free samples?
Yes. The listed policy provides up to three free samples for qualified requests, with the buyer paying the express freight. View Sample Information
What payment terms are available?
Available payment methods include T/T, L/C at sight and credit card.
What delivery terms are available?
Available delivery terms include EXW, FOB, CFR and CIF.
Does DABUND support OEM and ODM?
Yes. OEM and ODM services, including logo customization, are available for suitable orders.
What is the typical delivery time?
The listed typical delivery time is approximately 15–20 days, depending on the order and production requirements.
