How should the environment be maintained when adding recycled refrigerant to a low pressure system?

Maintaining minimal moisture in the environment when adding recycled refrigerant to a low-pressure system is crucial for several reasons. Moisture can lead to the formation of acids within the refrigerant, which can cause corrosion and damage the system components, including compressors and evaporators. Moreover, water present in the system can freeze, leading to blockages and further complications in the refrigeration cycle.

By ensuring that the environment has minimal moisture, technicians help safeguard the integrity of the refrigerant and system, promoting efficient operation and longevity of the equipment. Additionally, vacuuming the system before adding refrigerant helps to remove any existing moisture and air, but this does not replace the necessity of maintaining minimal moisture during the addition process. Thus, controlling humidity and ensuring the environment is as dry as possible is fundamental for optimal system performance and reliability.