How Long Does A EPA Certification Last?

How Long Does A EPA Certification Last? According to the United States Environmental Protection Agency (EPA) website, “Section 608 Technician Certification credentials do not expire.” This means that after completing the licensing exam, technicians who service heating and air conditioning do not need to be re-certified at specified time intervals. How do I get a

Can You Charge Liquid Refrigerant?

Can You Charge Liquid Refrigerant? Liquid refrigerant charging is always faster than low side vapor charging. On the low side you have to charge, then wait for the system pressures to balance, then reexamine the frost line etc. Which refrigerants should be charged as a liquid? Blends like R410a or 404a must be added to

How Often Must Reusable Cylinders Be Hydrostatically Tested?

How Often Must Reusable Cylinders Be Hydrostatically Tested? Federal law requires that refillable cylinders used to recover refrigerant must be inspected and hydrostatically tested a minimum of once every five years in accordance with 49 CFR Part 180, Subpart C or as specified in an applicable Special Permit as provided by the manufacturer of the

How Many Access Valves Are Needed To Recover The Refrigerant On A Sealed System?

How Many Access Valves Are Needed To Recover The Refrigerant On A Sealed System? How many access valves do we need to recover refrigerant on a system that is sealed? We only need one access valve. When installing any type of access fitting onto a sealed system? When installing any type of access fitting onto