Heating & A/C (A7)Pregunta 90 de 120
Before servicing an A/C system, refrigerant must be:
a.Recovered with approved equipment, not vented to the atmosphere
b.Vented outdoors quickly
c.Mixed with fresh oil
d.Frozen in the condenser
Explicación
Regulations require recovering refrigerant with certified equipment rather than releasing it, because it is a controlled substance. Recovery, recycling, and recharging equipment protects the environment and allows accurate recharging. Technicians handling refrigerant must be certified.
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