Elevator Operations at Working Fires

Questions and Answers

The elevator may lose power and stop working indefinitely.

The elevator emergency alarms may fail to activate.

The elevator may malfunction and trap passengers. (correct)

The elevator may open on the fire floor, exposing passengers to hazards. (correct)

Phase III operation (correct)

Phase I Operation

Phase II operation

The Knox box

On the outside of the building (correct)

On the rooftop

In the basement

In the elevator lobby (correct)

Fire service key(s) Signup and view all the answers

The elevator returns to a predetermined landing and locks out of service. Signup and view all the answers

BYPASS Signup and view all the answers

Elevator lobbies smoke detector Signup and view all the answers

Key the switch to 'OFF' and remove the key Signup and view all the answers

Personal keys of the building manager Signup and view all the answers

The elevator continues normal operation until manually reset. Signup and view all the answers

Study Notes

The use of elevators during a fire can have disastrous consequences if proper precautions are not taken, including malfunctions, opening on the fire floor, and exposing passengers to fire, smoke, and superheated gases.

The "Fire Service" feature is a required component of elevator codes in public buildings.
There are three key components of the fire service feature: the Knox box, Phase I Operation, and Phase II Operation.

Required in buildings without 24-hour on-site security.
Typically located in the elevator lobby or outside the building.
Contains the elevator fire service key(s) and may also have access keys to the building interior and elevator mechanical room.

Activated by keying the three-position hall station switch or automatically by smoke detectors in elevator lobbies, hoistway, or mechanical room.
Takes the elevator car(s) out of normal operation and returns them to a predetermined landing, locking them out of service.
Prevents people from using the elevators during a fire.
Can be bypassed by keying the switch to "BYPASS", returning the elevator(s) to normal service.
After alarms are cleared and reset, keying "BYPASS" resets the elevator(s) to normal service.
Keying "OFF" and removing the key returns the elevator(s) to normal operation.