When should a technician leak test a chiller?

A technician should perform a leak test on a chiller after any repair work is done because this is a critical step in ensuring the integrity and safety of the refrigeration system. When repairs are made, there may be connections or seals that could potentially leak refrigerant. By conducting a leak test, the technician can verify that the system is airtight and operating efficiently before it is put back into service. This practice helps avoid refrigerant loss, which can be costly and harmful to the environment, while also ensuring compliance with regulations.

While conducting a leak test during annual maintenance, before charging refrigerant, or during installation may also be important in certain contexts, the most immediate need for testing arises after any remedial work has been performed. This proactive approach helps identify any issues right away, promoting reliability and functionality of the chiller system.