What must be done before recovering refrigerant from a chiller suspected of having leaking tubes?

Prepare for the Type III Low Pressure Equipment Certification. Master essential concepts with practice questions and detailed explanations. Ensure success on your exam day!

Before recovering refrigerant from a chiller suspected of having leaking tubes, it is essential to drain the water from the evaporator and condenser. This step is critical for several reasons.

First, draining the water prevents water from mixing with the refrigerant during the recovery process, which could potentially lead to chemical reactions or contamination of the refrigerant. Water and refrigerant mixtures can cause problems with recovery equipment and can also compromise the quality of the recovered refrigerant, making it unsuitable for reuse.

Second, draining allows for a more controlled recovery process. By ensuring that there is no water in the system, technicians can more accurately assess the amount of refrigerant in the system and avoid potential overpressure scenarios that may occur if water is allowed to remain and subsequently vaporizes.

Lastly, ensuring that the system is free of water enhances overall safety during the recovery operation. Water in pressurized systems can lead to severe accidents, including explosions if water is heated or subjected to pressure within the system. This preventive measure contributes to a safer working environment for technicians.

While shutting off power and inspecting the compressor are important safety procedures in general, they do not directly address the issue of managing leaking tubes and preventing contamination during refrigerant recovery. Sealing off refrigerant lines is

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy