A2L- Practice 2ESCO Low GWP
Questions and Answers.
A2L systems are designed with electrical components that are _____________ ____. - Answer
Intrinsically Safe (IS)
When preforming repairs on a system that is charged with an A2L refrigerant, discharge
capacitors with a ________. - Answer resistor
When preforming repairs on a system that is charged with an A2L refrigerant, replace
components only with parts _________ __ ___ ____________. - Answer specified by the
manufacturer (OEM)
The tools used for the recovery of A2L refrigerants must be _____ ___ ___ ____ _________
______. - Answer rated for use with flammable gasses
Technicians should refer to the ___ ________ __________ chart for target refrigerant recovery
levels. - Answer EPA Recovery Efficiency
After recovery of an A2L refrigerant, the sytem should be ______ ____ ___ ________ (________
_____). - Answer purged with dry nitrogen (nitrogen sweep)
When evacuatingan A2L system, the vacuum pump must be _____ ___ ___ ____ ___
____________. - Answer rated for use with A2L refrigerants
For evacuation, some manufacturers of A2L equipment require that the system be ______
_________. - Answer triple evacuated
When charging an A2L system where ventilation mitigation has been installed, the maximum
allowable charge cannot exceed the __ charge weight. - Answer M2
When charging an A2l system where ventilation mitigation has NOT been installed, the
maximum allowable charge cannot exceed the __ charge weight. - Answer M1
_______ ___________ ____ should be used to prevent unauthorized access to the refrigerant
circuit. - Answer Locking refrigerant caps
Questions and Answers.
A2L systems are designed with electrical components that are _____________ ____. - Answer
Intrinsically Safe (IS)
When preforming repairs on a system that is charged with an A2L refrigerant, discharge
capacitors with a ________. - Answer resistor
When preforming repairs on a system that is charged with an A2L refrigerant, replace
components only with parts _________ __ ___ ____________. - Answer specified by the
manufacturer (OEM)
The tools used for the recovery of A2L refrigerants must be _____ ___ ___ ____ _________
______. - Answer rated for use with flammable gasses
Technicians should refer to the ___ ________ __________ chart for target refrigerant recovery
levels. - Answer EPA Recovery Efficiency
After recovery of an A2L refrigerant, the sytem should be ______ ____ ___ ________ (________
_____). - Answer purged with dry nitrogen (nitrogen sweep)
When evacuatingan A2L system, the vacuum pump must be _____ ___ ___ ____ ___
____________. - Answer rated for use with A2L refrigerants
For evacuation, some manufacturers of A2L equipment require that the system be ______
_________. - Answer triple evacuated
When charging an A2L system where ventilation mitigation has been installed, the maximum
allowable charge cannot exceed the __ charge weight. - Answer M2
When charging an A2l system where ventilation mitigation has NOT been installed, the
maximum allowable charge cannot exceed the __ charge weight. - Answer M1
_______ ___________ ____ should be used to prevent unauthorized access to the refrigerant
circuit. - Answer Locking refrigerant caps
