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17 Αυγ 2020 · Minimum Condensate Drain Pipe Sizing Chart. Slope to be at least 1/8” per foot or 1 percent, that is for every 12” horizontally there must be at least an 1/8” drop vertically. Condensate drain piping to slope a minimum of 1/8″ per every 12″ horizontal.
24 Μαΐ 2023 · A condensate drain line is a component of an HVAC system that removes the moisture (condensate) that is generated during the cooling process. When warm air passes over the evaporator coils in the air conditioning unit, the moisture in the air condenses on the coils, creating water droplets.
the condensate drain line slope towards its final drainage point shall be at 1/8" per foot [or, of course greater, where vertical drains are used - Ed.] OPINION: your local building code compliance inspector/officer is the final legal authority on HVAC condensate drain trap requirements.
2 Δεκ 2019 · In engineering terms, condensation occurs when air hits a surface cooler than its dewpoint temperature. This is what happens at coil surfaces inside an AHU. Latent heat is transferred by moisture in the air to the coil via the process of condensing on the surface of the cooling coil.
The idea here is to maintain straight alignment, a uniform slope, and strap or support the drain lines at proper intervals as guided by the installation manual and code books. The Proper Interval to Support PVC drain lines. We’re required to get a strap on it every four feet.
5 Φεβ 2024 · Understanding condensate drain lines is critical, from preventing water damage to ensuring optimal performance. This guide covers everything from installation to maintenance, including the nifty tricks of P-traps and safety switches.
The IMC dictates a 1% minimum pitch of the drain, equal to 1/8″ fall for every 12″ (foot) of horizontal run. In practice, it is safer to use 1/4″ of fall per foot to ensure proper drainage and provide some wiggle room for error.
