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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.
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.
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.
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.
If the condensate lines travel off the service platform and disappear in the insulation, that’s fine. But you still need to confirm to yourself that the ENTIRE drain line has at least, an eighth-inch slope to it.
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.
• Drain pipe must be in downward gradient for smooth drainage. • Avoid installing the drain pipe in up and down slope to prevent reversed water flow. • During the drain pipe connection, be careful not to exert extra force on the drain connector at indoor unit. • The outside diameter of the drain connection at the flexible drain hose is ...
