Which of the following are indicative of a leak in a low pressure system?

According to EPA regulations, commercial and industrial units containing 50 pounds of refrigerants must be repaired when the leak rate is above _______ annually.

What will happen if the refrigeration system is not evacuated fully?

According to EPA regulations, non-commercial air conditioner units containing 50 pounds of refrigerants must be repaired when the leak rate is above ___________ annually.

In the idle low pressure system, the lowest pressure that should be maintained is slightly above than _______

In a low pressure system, a leak will cause _______.

What is the lowest access point on the low pressure centrifugal air-conditioning unit?

To recover refrigerant from low pressure equipment, the technician must be certified in _____.