There isn't any. You have to install a piecing valve. EPA certification test covers this.
There are no sources that give the answers to the actual questions on the EPA 608 certification exam. To do so would be immoral and possibly illegal. Your best bet is to obtain a study guide, which is found for free on many websites.
I have provided you a link in which you can provide your personal details, after filling in the form you will be sent a letter explaining where you can get EPA certification in the Wichita KS area.
Legal way is to get EPA certification.
EPA 608 is a technical certification that you must have to work on refrigeration.Ê There are varrying levels of certification that enable you to work on small appliances and you can continue your certificationÊto workÊon bigger appliances such asÊAC units.Ê
First and foremost, they require EPA refrigeration certification. There may also be state and local licenses and certifications that would vary from place to place. But EPA certification is on a Federal level and if you work with refrigerants, you MUST have this certification. [From HVAC-Talk and Environmental Protection Agency]
The NVAC EPA test would be almost impossible to cheat on, but you can study for it and learn what you need to know to pass it. There are resources and sites online to help you prepare for the test.
R-12 for cars and trucks............. EPA 608 certified for homes.... This is a certification that is required by the EPA, and if you are to handle any kind of refrigerant you must be certified..............
If you are referring to EPA certifications for refrigerants, they do not expire and the issuing agency can get you a new one.
Anyone can buy refrigerant as long as they have taken and passed the EPA Section 608 Certification.
US EPA Test method 12 or a lab can also obtain results from Method 29.
First thing take the EPA test to prove you know how to Handel refrigerant in a safe and responsible manner, receive your certification then go to a HVAC&R supply house present your certificate and purchase the correct refrigerant .