On a system with a fixed metering device, an excessive amount of oil in the system can cause _____.
a. a shortage of refrigerant in the evaporator
b. excessive lubrication
c. low superheat values
d. refrigerant floodback
Question 2
On a system with a fixed metering device, a low superheat value can indicate _____.
a. an overcharged condition
b. too much airflow over the condenser
c. a lack of airflow over the evaporator
d. that the metering device is too small