Type I — Small AppliancesQuestion 89 of 240
A technician needs to access the sealed system of a household refrigerator that has no service valve. What tool is commonly used to gain temporary access for recovery?
a.A halide leak detector
b.A micron gauge
c.A saddle-type piercing (line-tap) valve on the process stub or tubing
d.A brazing torch to open the suction line permanently
Explanation
Small sealed appliances often lack service ports, so technicians attach a piercing (saddle) valve to a process stub or copper line to access the refrigerant for recovery. A piercing valve should be used only temporarily because it can leak over time. After service the access point is typically brazed closed rather than left on a bolt-on piercing valve.
Law Reference: 40 CFR §82.156Practice all 240 questions free — no signup required.
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