To ensure correct operation, how often should the nozzle be replaced?
A) Every year B) Every 18 months C) Every 6 months D) Every 3 years
Question 2
How can a technician check to see if the coil and condensing unit on an AC split system are matched?
A) Call the equipment supplier and provide the system model numbers.
B) The refrigerant line stub out sizes should be the same.
C) The first two digits of the equipment model number should be the same.
D) Check to see that both pieces are manufactured by the same company.
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