What should technicians monitor when recovering refrigerants from appliances?

When recovering refrigerants from appliances, technicians should monitor pressure and temperature readings to ensure the safe and effective extraction of refrigerants. Monitoring pressure is crucial because it helps technicians assess the system's status and avoids over-pressurizing the recovery device. Additionally, temperature readings can guide technicians on the refrigerant's state (liquid or vapor) and provide vital information on whether the recovery process is functioning correctly.

Keeping an eye on these readings is essential not only for efficiency but also for compliance with environmental regulations concerning proper refrigerant management, as leaks and improper handling can lead to harmful emissions. Understanding these readings allows technicians to maintain safety standards while recovering refrigerants and helps in diagnosing potential issues within the appliance.