Inspection, Testing and Maintenance (NFPA 72-2022 Ch. 14)
NFPA 72-2022 Ch. 14 · NFPA 72-2022 Ch. 7 (documentation) · NFPA 72-2022 Ch. 10 (personnel, impairments) · NFPA 72-2022 Annex A.14 · Outline tasks 1.2.1, 1.2.2, 1.3.1
What NICET expects at Level I
The Maintenance domain (1.2) is worth 40–50% of the exam, and almost all of it comes from Chapter 14 of NFPA 72-2022. A Level I technician must know how often each component is inspected and tested, how it is tested (the Method column of the table), what to do when something fails (repair or replace, and notify), and which records must be kept. The exam is open book with the printed code: the candidate who can open to the right table row in under a minute wins. Learn the structure of the chapter, not the wording.
Map of Chapter 14 (2022 edition)
| Section | Key content |
|---|---|
| 14.2.2 | Impairments, deficiencies (written notice within 24 h), and observations (new in 2022) |
| 14.2.3 | Responsibility of the owner or the owner's designated representative |
| 14.2.4 | Notification before testing and when testing is concluded |
| 14.2.6 | Releasing systems: secure the suppression system, no discharge |
| 14.2.10 | Written test plan |
| 14.3 and Table 14.3.1 | Visual inspection: frequency and method |
| 14.4.2 | Reacceptance testing (hardware and software) |
| Table 14.4.3.2 | Testing: method and periodic frequency |
| 14.4.4 | Testing frequency; 14.4.4.3 smoke detector sensitivity |
| 14.5 | Maintenance |
| 14.6 | Records |
Edition trap: older editions had a separate Table 14.4.5 (Testing Frequencies); it no longer exists. In 2022 the testing frequencies are in the Periodic Frequency column of Table 14.4.3.2 (Testing). A lot of older study material still cites Table 14.4.5.
Visual inspection: Table 14.3.1
| Component | Frequency |
|---|---|
| All equipment (building changes, obstructions, damage, cleanliness) | Annual |
| Monitored control unit: fuses, interfaced equipment, lamps/LEDs, primary power supply | Annual |
| Monitored control unit: trouble signals | Semiannual |
| Control unit NOT monitored (all of the above) | Weekly |
| Manual boxes, heat and smoke detectors, duct detectors (general) | Semiannual |
| Radiant energy (flame) and video image detectors | Quarterly |
| Waterflow devices and supervisory signal devices (tamper) | Semiannual (quarterly before 2022) |
| Audible and visible notification appliances | Semiannual |
| VRLA batteries: month/year of manufacture marking | Semiannual |
| Supervising station transmitters (DACT, DART, RAT) | Annual |
| NAC extenders and remote power supplies | Annual |
Testing: Table 14.4.3.2 (most-asked frequencies)
| Component (item) | Frequency |
|---|---|
| Control unit: functions, fuses, lamps, primary power supply (2) | Annual |
| Ground fault and transmission to the off-premises station (3) | Annual |
| Secondary power: 5 min in alarm for general alarm, 15 min for voice (8) | Annual |
| VRLA batteries: temperature, charger, unit voltage, ohmic (9) | Semiannual |
| VRLA batteries: replacement or load test (9) | Every 3 years |
| Manual boxes, smoke functional, heat, duct, projected beam, CO (17) | Annual |
| Flame detectors (17) | Semiannual |
| Control valve switch (17) | Semiannual |
| Air pressure, room temperature, water level, and water temperature switches (17) | Annual |
| Waterflow devices (17) | Semiannual |
| Notification appliances (22) and emergency control functions (24) | Annual |
| Dedicated engine-driven generator, by the owner per NFPA 110 (6) | Monthly |
Methods you must know
- Smoke functional test: smoke or a listed aerosol acceptable to the manufacturer; magnets are NOT acceptable for the smoke entry test.
- Sensitivity (14.4.4.3): within 1 year of installation, then every alternate year. After the second calibration test in range, the interval may be extended to a maximum of 5 years, with nuisance alarm records kept. Acceptable methods: calibrated test method, manufacturer's calibrated instrument, listed control equipment arranged for the purpose, a detector/control unit arrangement that signals out-of-range sensitivity, or another calibrated method acceptable to the AHJ. Out of range: clean and recalibrate, or replace.
- Heat: restorable types with a listed heat source or per the manufacturer, without damaging the nonrestorable fixed-temperature element. Nonrestorable spot type: at 15 years replace all or send 2 per 100 to a laboratory (repeat every 5 years).
- Supervisory: valve signal within the first 2 revolutions of the handwheel or 1/5 of the travel; air pressure change of 10 psi maximum; temperature 40°F (4.4°C); water level 3 in. (pressure tank) or 12 in. (nonpressure tank).
- Waterflow: through the inspector's test connection, at the flow of one sprinkler of the smallest orifice size installed.
- Notification: measure SPL only at acceptance and reacceptance (Type 2 meter, FAST); at the periodic test, verify operation. Strobes: verify that each one flashes.
VRLA batteries (Table 14.4.3.2, item 9)
| Test | Replacement criterion |
|---|---|
| Temperature (negative terminal, infrared thermometer) | More than 18°F (10°C) above the enclosure's internal ambient temperature |
| Cell/unit voltage (fully charged, on the charger) | Less than 13.26 V |
| Ohmic (against baseline) | Deviation of 30% or more (conductance) or 40% or more (resistance/impedance) |
| Load test (every 3 years) | 80% or less: replace; less than 85%: replace at the next scheduled test |
Before testing batteries, make sure any software held in volatile memory is protected. A bulging, cracked, or leaking battery is replaced, not tested. Vented lead-acid and nickel-cadmium batteries no longer have their own rows: they follow the manufacturer's instructions or IEEE 450 / IEEE 1106.
Reacceptance (14.4.2)
- Site-specific software: 100% of what is affected, plus 10% of the initiating devices NOT affected (maximum 50). The record of completion is also revised.
- Executive software: 10% functional test of the system, with at least one device on each input and output circuit.
- Remote changes (new in 2022): a qualified person must be on site.
- Like-for-like replacement: test the replaced device; the 10% is not required (A.14.4.2).
Example: 600 initiating devices, 30 affected. Test the 30, plus 10% of 570, which is 57; with the cap of 50, the total is 80 devices.
Notifications, deficiencies, and impairments
- Before testing, notify whoever receives the signals (supervising station, and fire department if applicable) and the occupants. When finished, notify them that testing has concluded.
- A deficiency not corrected at the end of the visit is reported in writing to the owner within 24 h. Equipment that is part of a recall program is also reported in writing.
- An observation is a suggestion that is neither a deficiency nor an impairment; the owner is not required to act on it.
- For an impairment, notify the owner and apply mitigating measures acceptable to the AHJ (Section 10.21). Under NFPA 101 or the adopted IFC, if the system is out of service more than 4 h in 24 h: notify the AHJ and provide a fire watch or evacuate.
- Releasing systems: secure the suppression system against actuation, notify occupants, no discharge, and restore everything at the end.
Records (14.6 and Ch. 7)
- ITM records: kept until the next test and for 1 year thereafter. The supervising station keeps its records at least 1 year.
- As-built drawings, operation and maintenance manuals, and the sequence of operation: given to the owner and kept for the life of the system (paper or electronic).
- Form: System Record of Inspection and Testing, Figure 7.8.2(g) and its supplements, or an alternative record with the same information (7.6.6).
- Copy of the site-specific software: on site, in nonvolatile, nonerasable, nonrewritable memory (7.5.7).
Common traps: (1) Confusing visual inspection (Table 14.3.1) with testing (Table 14.4.3.2). (2) In 2022, waterflow and supervisory devices have a semiannual visual inspection, not quarterly. (3) Sensitivity is never measured with an unmeasured aerosol. (4) The 10% / maximum 50 rule is for initiating devices NOT affected; affected devices are tested 100%. (5) NFPA 72 requires testing the emergency control function interface device, not the whole controlled function (for example, the elevator). (6) Control valve switch: semiannual; the other supervisory switches: annual.
How to find it fast in the printed code book
- Does the question say look at or inspect? Turn to Table 14.3.1. Does it say test? Turn to Table 14.4.3.2. Its items are numbered: 2 control unit, 3 trouble signals and ground fault, 4 transmission equipment, 8 secondary power, 9 VRLA, 15 conductors, 17 initiating devices, 22 notification appliances, and 24 emergency control functions.
- Table 14.4.3.2 runs for many pages. Place permanent tabs at its first page, at item 9 (batteries), at item 17 (initiating devices), and at item 22 (notification appliances), plus one tab on Table 14.3.1.
- Other tabs worth placing: 14.4.2 (reacceptance), 14.4.4.3 (sensitivity), 14.6 and 7.6.6 (records), 10.5.3 (personnel), and 10.21 (impairments).
- Use the index at the back of the book: look up "Sensitivity testing", "Reacceptance testing", "Impairments", "Batteries", "Records". Every section number starts with its chapter (14.x is Chapter 14). An asterisk (*) next to a section means Annex A has explanatory material (A.14.x) — not mandatory, but it explains intent, such as A.14.4.2 (like-for-like replacement) and A.14.4.3.2 (battery formulas).
- Highlight the key numbers in the Method column before exam day: "two revolutions", "18°F", "13.26 V", "50 devices", "1 year thereafter".
- Read every frequency word (weekly, monthly, quarterly, semiannually, annually) from the Periodic Frequency column of Table 14.3.1 or Table 14.4.3.2, and count each interval from the date of the last inspection or test: semiannual items come due about 6 months later and annual items about 12 months later.
What to tab in your books
| Section | Why |
|---|---|
| NFPA 72 §14.2.2 | Impairments, deficiencies (written notice within 24 h), recalls, and observations |
| NFPA 72 §14.2.3 | Owner responsibility and delegation |
| NFPA 72 §14.2.4 | Notification before and after testing |
| NFPA 72 §14.2.6 | Testing of releasing systems |
| NFPA 72 §14.2.10 | Written test plan |
| NFPA 72 Table 14.3.1 | Visual inspection: frequencies and methods |
| NFPA 72 §14.4.2 | Reacceptance: 100% affected + 10% (max. 50); executive software; remote changes |
| NFPA 72 Table 14.4.3.2 items 2–4 | Control unit, trouble signals, ground fault, transmission (DACT 90 s / 4 min) |
| NFPA 72 Table 14.4.3.2 items 8–9 | Secondary power (5/15 min) and VRLA batteries |
| NFPA 72 Table 14.4.3.2 item 17 | Initiating devices: methods and frequencies |
| NFPA 72 Table 14.4.3.2 items 22–24 | Notification appliances and emergency control functions |
| NFPA 72 §14.4.4.3 | Smoke detector sensitivity (1 year, every alternate year, up to 5) |
| NFPA 72 A.14.4.3.2 | Annex: ohmic test and battery capacity calculation |
| NFPA 72 §14.6 | Records: retention and owner documents |
| NFPA 72 §7.6.6 / Fig. 7.8.2(g) | System Record of Inspection and Testing |
| NFPA 72 §10.5.3 | Qualifications of inspection, testing, and service personnel |
| NFPA 72 Section 10.21 | System impairments |
Chapter vocabulary
- Inspection
- Visual examination of equipment to verify its location and condition and that nothing has changed or been damaged (Table 14.3.1).
- Testing
- Operating a device or system to prove that it works, using the method in Table 14.4.3.2.
- Maintenance
- Work done to keep equipment operable per the manufacturer's instructions (Section 14.5).
- Impairment
- A condition in which the system or part of it is out of order or cannot perform its function; requires notification and mitigating measures.
- Deficiency
- A condition that affects system performance; it must be corrected and, if not corrected at the end of the visit, reported in writing within 24 h.
- Observation
- A suggested improvement that is neither an impairment nor a deficiency; the owner is not required to act on it (new in 2022).
- Reacceptance testing
- Testing after components, wiring, or software are added, deleted, repaired, or modified (14.4.2).
- Site-specific software
- Programming unique to the installation (input/output mapping, labels, control matrix).
- Executive software
- The control unit manufacturer's firmware or operating system; a change requires a 10% functional test.
- Sensitivity testing
- Verification with a calibrated method that a smoke detector is within its listed and marked range.
- Valve-regulated lead-acid (VRLA) battery
- Sealed battery typical of fire alarm panels; tested semiannually and replaced or load tested every 3 years.
- Ohmic test
- Measurement of a battery's internal conductance, resistance, or impedance, compared with a baseline value.
- Inspector's test connection
- Sprinkler system outlet that simulates the flow of one sprinkler to test the waterflow switch.
- Control valve supervisory switch (tamper)
- Sends a supervisory signal when the valve is closed; must operate within 2 revolutions or 1/5 of the travel.
- Emergency control function interface device
- Relay or module through which the fire alarm acts on elevators, HVAC, or doors; NFPA 72 requires this device to be tested.
- Record of completion
- Document for the completed installation (Fig. 7.8.2(a)); revised after software changes.
- Record of inspection and testing
- Form in Fig. 7.8.2(g) and its supplements, or an equivalent alternative record, used to document periodic ITM.
- Test plan
- Written document that clearly establishes the scope of the testing (14.2.10).
- Designated representative
- Person or company to whom the owner assigns ITM responsibility by contract or lease.
- Fire watch
- Approved mitigating measure: personnel who patrol the building while the system is out of service.
- Nonrestorable heat detector
- Detector whose sensing element is destroyed when it operates; it is not heat tested in the field.
- Supervising station
- Facility that receives alarm, supervisory, and trouble signals; it must be notified before and after testing.
- Periodic frequency
- How often a component is inspected (Table 14.3.1) or tested (Table 14.4.3.2): weekly, monthly, quarterly, semiannually, annually, or at a multi-year interval; count the interval from the date of the last inspection or test.
93 practice questions cover this chapter, each with an explanation and the code section. Get lifetime access or try the free practice exam.
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