Low temperature alarms, if installed in valve enclosure, shall be inspected how frequently at the beginning of the heating season?

Low temperature alarms, if installed in valve enclosure, shall be inspected how frequently at the beginning of the heating season?

• A. Daily for the first week of the season.
• B. Weekly.
• C. Quarterly.
• D. Annually

Answer: (D)

Low temperature alarms in valve enclosures are safety devices that must be verified on a regular maintenance schedule so they will function when temperatures drop and freezing could affect the system. The minimum and expected frequency is annually, typically scheduled at the start of the heating season, so any sensor drift, wiring issues, or power problems are caught before cold weather arrives. During the annual inspection, you should verify that the sensor responds at the correct setpoint, confirm the alarm annunciation (audible and visual), check that alarm signals are transmitted to any monitoring or central annunciator, and inspect the power supply and wiring for integrity. If the system has a manufacturer-recommended test procedure, follow it as well. Frequent checks like daily, weekly, or quarterly are not usually required for this device because a thorough annual test covers the essential operability, while more frequent checks would be impractical and not materially improve reliability unless there’s a known history of failure or a specific manufacturer or authority requirement.

Low temperature alarms in valve enclosures are safety devices that must be verified on a regular maintenance schedule so they will function when temperatures drop and freezing could affect the system. The minimum and expected frequency is annually, typically scheduled at the start of the heating season, so any sensor drift, wiring issues, or power problems are caught before cold weather arrives.

During the annual inspection, you should verify that the sensor responds at the correct setpoint, confirm the alarm annunciation (audible and visual), check that alarm signals are transmitted to any monitoring or central annunciator, and inspect the power supply and wiring for integrity. If the system has a manufacturer-recommended test procedure, follow it as well.

Frequent checks like daily, weekly, or quarterly are not usually required for this device because a thorough annual test covers the essential operability, while more frequent checks would be impractical and not materially improve reliability unless there’s a known history of failure or a specific manufacturer or authority requirement.