How many years of copper pipe be used in HVAC Equipment ?

Copper pipesin HVAC systems can last for 20 to 25 years or even longer (50+ years in general plumbing), but their lifespan in AC/refrigeration is typically 10-25 years, depending heavily on installation quality, maintenance, water/refrigerant quality, and environmental factors like corrosion; proper setup and servicing are crucial for maximizing longevity, with quality copper often outlasting alternatives like aluminum.
Factors Influencing Lifespan
Installation Quality: Professional installation with correct techniques and pipe sizing significantly extends life.
Maintenance: Regular checks for corrosion, leaks, and servicing prevent premature failure.
Corrosion: Acidic water or harsh environmental conditions (salty air, chemicals) can accelerate corrosion, especially for thinner Type M pipes.
Water Quality: High mineral content (hard water) or certain chemicals (chlorine, fluoride) can degrade copper over time.
Pipe Type & Thickness: Thicker L-Type or K-Type copper is more durable than thinner M-Type, though M-Type is common in residential AC lines.
Environmental Exposure: External factors like coastal air or sulfur in the air can impact durability.
When to Consider Replacement
Damage: Kinks, bends, or crushing from construction or lawn equipment should be replaced.
Contamination: Old pipes can carry moisture, acid, or dirt into new systems, damaging the compressor, so replacing them with new line sets is often recommended for new unit installations.
Age: While durable, older pipes (over 20 years) are more prone to issues, making replacement a wise preventative measure.
In essence, while copper’s inherent properties are excellent, its lifespan in HVAC is a balance between its inherent quality and the conditions it’s subjected to.