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NYC Mechanical Code

§ 1210.10 — § 1210.10

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What is NYC MC § 1210.10?

Quick Answer

This section mandates that before backfilling connection header trenches, the assembled loop system undergoes a pressure test with water at 100 psi for 15 minutes, ensuring no leaks are present. Additionally, flow and pressure loss testing must be conducted, comparing actual values to calculated design values. Applies to building owners responsible for loop system installations.

General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.

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1210.10 Tests.

MC § 1210.10

Before connection header trenches are backfilled, the assembled loop system shall be pressure tested with water at 100 psi (689.5 kPa) for 15 minutes, in which time there shall not be observed leaks. Flow and pressure loss testing shall be performed and the actual flow rates and pressure drops shall be compared to the calculated design values. If actual flow rate or pressure drop values differ from calculated design values by more than 10 percent, the cause shall be identified and corrective action taken.

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