Type I — Small AppliancesQuestion 114 of 240
A technician recovers refrigerant from ten small appliances into one recovery cylinder over a day. What must the technician watch to avoid overfilling the cylinder?
a.The cylinder must never be filled beyond 80% of its capacity by weight
b.The cylinder can be filled until pressure reaches 500 psig
c.There is no fill limit for small-appliance refrigerant
d.The cylinder may be filled to 100% since it is a recovery cylinder
Explanation
A recovery cylinder must never be filled beyond 80% of its rated capacity by weight to leave room for liquid expansion as temperature rises. Overfilling can cause dangerous hydrostatic pressure and rupture. The technician should use a scale and stop at the 80% limit, regardless of how many appliances were recovered.
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Related questions on this topic
- After recovering refrigerant into a recovery cylinder from several small appliances, a technician wants to reuse the recovered refrigerant in a customer's unit without sending it out. What is generally required?
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