Universal practice test, question 80 of 100

An R-11 chiller has a leaking evaporator that cannot reach Table 1 levels. Under the leaky-appliance rule, what is the first thing the technician should do?

• AEvacuate the whole chiller to 0 psig and open it
• BIsolate leaking components from non-leaking ones where possible
• CPressurize the whole chiller with nitrogen to locate the leak first
• DVent the remaining vapor because it is contaminated