NFPA 72 2023 edition
April 13, 2023
NFPA 72 requires differential pressure testing of duct detector sampling tubes. While not often enforced nor fully understood, your team should be equipped to know how to do it when called upon.
Where to find it: NFPA 72 2023 edition, table 14.4.3.2.17.7(e). Test duct smoke detectors that use sampling tubes to ensure that they will properly sample the airstream in the duct using a method acceptable to the manufacturer or in accordance with their published instructions.
Best Mechanical & HVAC Trade Shows for Commercial Service Contractors
How Top Performing Contractors Achieve 2X Revenue Growth with ServiceTrade
Here’s how ServiceTrade’s powerful platform and recommended actions from our 2024 Benchmark Reports can help your business grow faster.
How ServiceTrade Helps You Streamline Operations and Speed Up Cash Flow
Here’s how ServiceTrade enables service contractors to move from job completion to cash in hand, faster than ever.