What is the main characteristic of the cooling system in a low-pressure chiller?

The primary characteristic of the cooling system in a low-pressure chiller is its operation under low pressure. This low-pressure design allows for the efficient evaporation of refrigerants at lower temperatures, facilitating effective heat absorption from the environment. By operating at low pressure, these chillers can achieve more significant temperature differentials, which enhances their overall cooling efficiency.

Additionally, low-pressure chillers are typically designed with specific refrigerants suited to low-pressure applications, which further optimizes their performance and contributes to safety standards in handling and operating the system. This contrasts with high-pressure systems that operate at elevated pressures, potentially leading to different engineering requirements and safety concerns.