Final answer:
The fill level of a recovery tank can be controlled by monitoring temperature, adding or removing refrigerant, and by cleaning condenser coils. Adjusting pressure settings is not a standard practice for controlling fill level.
Step-by-step explanation:
To control the fill level of a recovery tank when using a recovery unit, several methods can be utilized. These methods include:
- Monitoring the temperature: The temperature of the refrigerant correlates with its pressure. By monitoring the temperature of the recovery tank, one can infer the pressure and the amount of refrigerant inside.
- By adding or removing refrigerant: Adjust the amount of refrigerant manually to control the fill level, ensuring it does not exceed the recommended capacity.
- By cleaning the condenser coils: Clean condenser coils operate more efficiently, indirectly affecting the fill level by impacting the condensation rate.
However, adjusting the pressure settings directly to control the fill level is not typically practiced, as the pressure within the tank is a function of the refrigerants temperature and the ambient temperature conditions.