What is one requirement for central vacuum systems found in homes?

Central vacuum systems are designed to provide effective and efficient cleaning throughout a home, and one of the key requirements for their installation is the necessity for a dedicated electrical circuit. This ensures that the system operates safely and efficiently without overloading other circuits, which could lead to tripped breakers or potentially hazardous situations. A dedicated circuit of at least 15 amps is typically required to provide adequate power for the motor's operation, allowing it to perform well without interruption.

In contrast, the other options either misrepresent the intended use of central vacuum systems or do not align with standard installation codes. For instance, these systems generally do not clean up liquids, and they are not restricted to being used solely in kitchens, nor do they lack specific electrical requirements. Hence, recognizing the dedicated circuit requirement is crucial for the safe and effective use of central vacuum systems in residential settings.