HVAC - EPA Certification Practice Exam

According to ASHRAE Standard 15, what must be present in rooms with refrigerants?

1. A ventilation system

2. A refrigerant sensor and alarm

3. Routine maintenance plans

4. Absorbent materials

The correct answer is: A refrigerant sensor and alarm

To ensure safety in rooms that contain refrigerants, ASHRAE Standard 15 mandates the installation of a refrigerant sensor and alarm. This requirement is in place because refrigerants can pose significant health and safety risks, particularly in enclosed spaces where leaks may go undetected. The sensor is designed to detect refrigerant leaks and trigger an alarm, warning occupants to take action to mitigate potential exposure or hazards. The presence of a refrigerant sensor and alarm is critical for preventive safety measures. It allows for immediate response to any refrigerant release, minimizing the risks associated with exposure to these substances, which can be harmful or fatal in high concentrations. By having these safety devices in place, organizations can enhance the overall safety protocols associated with refrigeration systems, fostering a safer working environment. While a ventilation system may help mitigate risks and routine maintenance plans can ensure ongoing functionality, the specific requirement under ASHRAE Standard 15 is the sensor and alarm system, which serves as a direct line of defense against potential refrigerant hazards. Absorbent materials, while potentially useful in some scenarios, do not provide the proactive safety monitoring and alerting function that a refrigerant sensor provides.