Block 12 Quiz F-Gas Certification

R1234yf refrigerant requires service equipment that is:

• Dedicated to R1234yf

• Compatible with R134a

• Modified from R12 systems

• None - universal

F-Gas Regulation EU 517/2014 prohibits:

• Recovery

• Recycling

• Venting to atmosphere

• Using certified equipment

Subcooling measurement is taken:

• Before condenser

• After condenser

• At evaporator

• At compressor

Acceptable leak detection methods include:

• Electronic detector

• UV dye

• Soap bubbles

• Pressure decay

Minimum vacuum level before recharge is:

• 1000 microns

• 500 microns

• 300 microns

• 100 microns

Recovery machine oil separator protects:

• Compressor

• Condenser

• Evaporator

• Service gauges

R134a service port thread size is:

• 1/4" ACME

• 1/2" ACME

• 7/16-20 UNF

• 16mm metric

During recovery, you must NOT:

• Purge non-condensables

• Exceed 90% tank fill

• Use manifold gauges

• Recover from both ports

Proper UV dye injection location is:

• High-pressure port

• Low-pressure port

• Liquid line

• Suction accumulator

Refrigerant identifiers must check for:

• Purity only

• Contaminants only

• Both purity and contaminants

• None - visual check