What type of defrost system commonly uses a plate type evaporator coil?

The manual shutdown type of defrost system is commonly associated with plate type evaporator coils due to the design and operational characteristics of this system. In this type of defrost system, operators must manually shut down the refrigeration operation to allow for defrosting, which is effective for maintaining efficiency in systems that utilize plate type evaporator coils.

Plate type evaporators have a relatively large surface area for heat exchange, allowing for efficient cooling. However, they are prone to frost accumulation, leading to reduced efficiency over time. The manual shutdown method allows for periodic defrosting without the complexities of automated systems, making it practical for certain applications where operators can monitor and manage the defrost process effectively.

In contrast, other defrost systems like automated defrost systems, hot gas defrost systems, and continuous operation defrost systems are designed to minimize human intervention and often rely on more advanced controls or mechanisms to manage defrost cycles automatically. This distinction highlights why the manual shutdown type is specifically aligned with the use of plate evaporator coils, focusing on the balance between operational control and efficiency.