---
id:
aliases: []
tags:
  - systems/fire-alarm
---
# Fire Alarm

## Sequence

### 1. Estimate preparation

1. Initial the OneNote
2. Read about the project specifications and construction type
3. Find Fire Alarm plans (if present)
4. Locate the following rooms:
    * Fire Command Center (FCC)
    * Generator Room
    * Fire Pump Room
    * Elevator Control Rooms
    * Elevator Shafts
    * Stairwells

### 2. Takeoff

#### Riser

##### Fire Command Center

{Building Type} Head End CA.30.23.X

##### Generator Room

CA.30.22.2

##### Fire Pump Room

CA.30.22.4

##### FACR to Elevator Shafts

Elevator Shafts (CA.30.22.8)

FACR TO ELEV SHAFT 1 ½" (CA.30.22.10/11)

Measure Length from the most distant points of the FACR and each shaft.
Input adder length to reach the bottom of the pit
(Minimum 15ft adder).

```
|           1 shaft           |            2 shafts            |
| || +--------+ +--------+ || | || +--------+ || +--------+ || |
| || | Elev 1 | | Elev 2 | || | || | Elev 1 | || | Elev 2 | || |
| || +--------+ +--------+ || | || +--------+ || +--------+ || |
| ||=======================|| | ||============||============|| |
|                             |                                |
```

##### FACR to Elevator Control Rooms

Elevator Control Room (CA.30.22.6)

FACR/FCC TO ELEV CONTROL ROOM (CA.30.22.13/14)

* Measure the Horizontal and Vertical Distance from the FACR to the ECR.
* Use Typicals for the vertical riser. (Ex// 10' per floor)

##### FACR to Stairwells

FACR TO STAIRWELLS 1" PVC (CA.30.22.17)

* Measure from the furthest end of FACR to the furthest end of the stairwell to find length

* This is for the Flow/Tamper modules in the stairwells

##### Terminal Cabinets

TERMINAL CABINETS (2) 2" EMT/PVC (CA.30.26. __)

Horizontal:
* Measure from the Fire Command room to all electrical rooms

Vertical:
* Use 10ft Riser in Typical
* GA or HD - 1" conduit / HR - (2) 2" conduits)

##### Annunciator Panels

* Fire Alarm Annunciator (FAA),
* Fire Alarm Annunciator Panel (FAAP)

ANNUNCIATORS (CA.30.27.2/3)

Remote Serial Annunciator, LCD Display - PVC

* Measure from the Fire Command Room to FAA or Lobby

##### Sleeving

#### Devices

1. Takeoff floor plans in order
2. Takeoff enlarged drawings

##### Smoke Detectors

_Design Build:_
Count every stairwell at every level.

##### Pull Stations

_Design Build:_
Count every stairwell at every level
and every exterior exit.

##### Flow-Tamper Switches

No free air. if wood frame, take off as EMT.

_Design Build:_
Count every stairwell at every level.

##### Magnetic Door Holders

Mech Connection - PVC AL Flex - 20 A

_Design Build:_
Count every set of double doors.
(Typical of elevator lobbies and corridors)

##### Speaker Strobes

_Design Build:_
* Count every 75 ft,
    * measure with circles on Bluebeam
    * or divide relevant SF area by 4415
        * $\pi(\frac{75}{2})^2 \approx 4415$
* every elevator lobby,
* and every BOH room on the first floor and garage levels.

#### Fire Smoke Dampers (FSD's)

Take off both FA and Electrical
* Misc Assemblies

#### Area of Refuge (AoR) / Two-Way

PROPOSAL "STAND ALONE SYSTEMS"

CA.31.27. 4/7

##### Horizontal

Take off once
* Length:
    * If shown on Plans (FA/Systems/ etc.)
    * based on FCR to Elevator Lobbies & FCR to Stairwells* (Whichever is longer)
* Count: Number of boxes run to. If not shown, use the largest count between Elev. & Strwlls.

##### Vertical

Typical on all floors
* Length: 15ft x per count
* Count: match Horizontal

#### Responder Radio / DAS

##### FACR to Every Elev. Shaft

FACR TO ELEV PIT = 2" PVC40
CA.28.31.5

Match Fire Alarm takeoff Length and Count

##### FACR to Every Staircase

FACR TO STAIRWELL = 2" PVC40
CA.28.31.8

Match Fire Alarm takeoff Length and Count

##### Stairwell Riser Every 2 Floors

STAIRWELL RISER EVERY 2 FLRS = 1 1/2" EMT (20') W/ 16X16X6 BOX
CA.28.31.12

Create a Stairwell typical on every other floor

##### FACR to Electric Room

FACR TO 2HR-RATED RM = 2" PVC40
CA.28.31.14

Match Fire Alarm takeoff Length

##### Electric Room Riser to Every Floor

2HR-RATED RM RISER TO EVERY FLR = 2" EMT (15') W/ 16X16X6 BOX
CA.28.31.18

Takeoff in every Electric Room

##### Top 2H Rated Room To Roof

FACR TO ROOF = 2" EMT W/ RMC WEATHERHEAD & IMC STUB
CA.28.31.18

Use 15' or Height of ceiling on last building level

##### Horizontal

CORRIDORS EMT OH = 1 1/2" EMT W/ 16X16X6 BOX EVERY 80'
CA.28.31.23

CORRIDORS DECK = 1 1/2" PVC40, STUBBY, FLEX W/ 16X16X6 BOX EVERY 80'
CA.28.31.21

1-1/2 through corridors w/ 16x16x6 J-Box

Length for every corridor/garage

### 3. Extension (Review and Checking)

* Sleeving