When installing a system that is charged with a flammable refrigerant, what can be installed to energize mitigation response?

When installing a system that is charged with a flammable refrigerant, what can be installed to energize mitigation response?

• A. A smoke detector
• B. Active refrigerant sensor
• C. A humidity sensor
• D. A standard motion sensor

Answer: (B)

The main concept is detecting a leak of a flammable refrigerant and triggering an automatic safety response. An active refrigerant sensor continuously monitors the air for the presence of refrigerant and is wired into the system controls to energize mitigation actions when a leak is detected. This is crucial because a refrigerant leak in a system using flammable types can create an ignition risk, so having a detector that can automatically initiate ventilation, isolation, or shutdown helps prevent a hazardous buildup. A smoke detector, by contrast, responds to combustion products after a fire and isn’t reliable for detecting a refrigerant leak. A humidity sensor doesn’t indicate refrigerant presence, and a standard motion sensor isn’t related to leak detection or safety responses for flammable refrigerants.

The main concept is detecting a leak of a flammable refrigerant and triggering an automatic safety response. An active refrigerant sensor continuously monitors the air for the presence of refrigerant and is wired into the system controls to energize mitigation actions when a leak is detected. This is crucial because a refrigerant leak in a system using flammable types can create an ignition risk, so having a detector that can automatically initiate ventilation, isolation, or shutdown helps prevent a hazardous buildup.

A smoke detector, by contrast, responds to combustion products after a fire and isn’t reliable for detecting a refrigerant leak. A humidity sensor doesn’t indicate refrigerant presence, and a standard motion sensor isn’t related to leak detection or safety responses for flammable refrigerants.