---
title: Fire Alarm Systems
…264 unchanged lines
- "Relocation — alarm floor and floors above/below evacuate; others remain"
- "Defend in place — shelter-in-place with selective notification (healthcare)"
− - "As indicated in the sequence of operations matrix on drawings"
drawing_ref: true
default: "Total (simultaneous) evacuation — all NACs activate on any alarm"
…67 unchanged lines
- "20% spare on all circuit types (installed, usable without hardware addition)"
- "25% spare — enhanced expansion requirement"
− - "As indicated on drawings"
drawing_ref: true
default: "20% spare on all circuit types (installed, usable without hardware addition)"
…137 unchanged lines
- "Alarm signal — fan shutdown + occupant notification"
- "Alarm signal — fan shutdown + occupant notification + FACU relay for damper closure"
− - "Per sequence of operations matrix on drawings"
−drawing_ref: true
−default: "Per sequence of operations matrix on drawings"
+drawing_ref: "sequence of operations matrix"
+default: deferred
```
…54 unchanged lines
- "194°F (90°C) — high-temperature environment (near kitchen equipment)"
- "212°F (100°C)"
− - "Per drawings based on ambient temperature survey"
−drawing_ref: true
+drawing_ref: "ambient temperature survey"
default: "135°F (57°C) — standard low-temperature spaces"
```
…140 unchanged lines
- "82 dB — standard commercial ambient"
- "88 dB — elevated-ambient spaces (mechanical rooms, labs)"
− - "Per voltage drop calculation and ambient survey — see drawings"
−drawing_ref: true
+drawing_ref: "voltage drop calculation and ambient survey"
default: "82 dB — standard commercial ambient"
```
…33 unchanged lines
- "135 cd"
- "185 cd"
− - "Per room-by-room coverage calculation — see drawings"
−drawing_ref: true
−default: "Per room-by-room coverage calculation — see drawings"
+drawing_ref: "room-by-room coverage calculation"
+default: deferred
```
…132 unchanged lines
- "Level 3 — listed 2-hour fire-rated cable system with tested assembly"
- "Level 4 — listed 1-hour fire-rated cable (2022 edition addition)"
− - "Per drawings — as required by AHJ and evacuation strategy"
drawing_ref: true
default: "Level 0 — no survivability requirement (conventional wiring, Class B)"
…213 unchanged lines
- "16 AWG"
- "14 AWG"
− - "Per voltage drop calculation — see drawings"
−drawing_ref: true
+drawing_ref: "voltage drop calculation"
default: "18 AWG (minimum per NFPA 72)"
```
…8 unchanged lines
- "14 AWG"
- "12 AWG"
− - "Per voltage drop calculation — see drawings"
−drawing_ref: true
+drawing_ref: "voltage drop calculation"
default: "14 AWG"
```
…312 unchanged lines
### Where nuisance alarms exceed this threshold, the Contractor shall investigate, reprogram, or replace devices as necessary to achieve compliance.