BC Ch.7 Defintions

Study Notes

Boilers primarily create steam for heating purposes in buildings.
HVAC systems encompass heating, ventilation, and air conditioning to maintain indoor air quality and comfort.

Cable trays protect and support wiring over long distances in large commercial and industrial buildings.
Conductors, typically made of copper or aluminum, distribute electricity throughout a building.
Conduits protect exposed wiring from physical damage, ensuring electrical safety.

Condensers release heat to the surrounding area as part of the refrigeration cycle.
Evaporators cool the surrounding area by absorbing heat from the refrigerant.
Refrigerants are crucial for absorbing and releasing heat in refrigeration systems.

Occupant evacuation elevators are designed for buildings exceeding 420 ft (128 m) in height, facilitating safe exits during emergencies.
Phase I elevator operation involves recalling elevators to the first floor lobby upon smoke detector activation.
Phase II allows fire fighters to control elevators using special keys, enhancing the efficiency of rescue operations.
Phase III involves occupants using elevators for self-evacuation before fire fighter assistance arrives.

Emergency power provides electricity for critical life-safety features, such as fire pumps and alarm systems, during outages.
Standby power supports less critical building functions when the main power source fails.

Electrical service panels manage circuit conductors and power supply, centrally controlling the electrical system's safety and functionality.
Cable trays and conduits play essential roles in protecting and organizing electrical wiring within a building.