An electrical panel, also called a breaker box or distribution board, is the central hub that receives power from the utility and distributes it throughout a building via individual circuits. The panel contains the main breaker, individual circuit breakers, and buses that route electricity safely to different areas of a structure. In HVAC installations, the electrical panel is critical for connecting furnaces, air conditioners, and other equipment to the building’s power supply.
Components and Function
Modern electrical panels typically accommodate 100 to 200 amp main service. The panel houses individual breakers rated from 15 to 50 amps depending on circuit requirements. Panels are designed to prevent overloads and provide disconnection points for maintenance. Each circuit is protected and isolated, allowing selective power management and safety controls.
HVAC System Integration
HVAC equipment requires dedicated circuits sized according to equipment specifications and local electrical codes. Air conditioning units may require 30-60 amp circuits, while furnaces typically use 20-30 amp circuits. The electrical panel must have adequate capacity to handle simultaneous operation of all systems without exceeding its rated capacity.
Code Compliance
All panels must comply with National Electrical Code standards. They require proper labeling, accessible disconnection means, and appropriate grounding. Regular inspection ensures safe operation and early detection of potential hazards.