A centrifugal chillers rupture disk is connected to the chiller's ______.

The rupture disk in a centrifugal chiller is connected to the evaporator. This component serves as a safety device designed to prevent pressure from exceeding a safe limit within the evaporator. If the pressure in the evaporator rises to unsafe levels, the rupture disk will break, allowing refrigerant to escape and thus relieving pressure, which protects the system from damage and potential hazards.

In the context of a centrifugal chiller, the evaporator is responsible for absorbing heat from the space being cooled. It operates under specific pressure and temperature conditions, and maintaining those limits is crucial to the safe and efficient operation of the chiller. By connecting the rupture disk to the evaporator, the system gets immediate feedback on any dangerous pressure increases, enabling a quick response to maintain safety.

Other components like the condenser, liquid line, and economizer have different roles in the refrigeration cycle and would not typically be points of concern for pressure release related to the conditions in the evaporator. This makes the connection of the rupture disk to the evaporator essential for maintaining system integrity and safety.