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Multiple Choice

Under ASHRAE Standard 15, equipment room refrigerant monitoring is required for which refrigerant?

Equipment room monitoring is required for refrigerants that are flammable (A2L or higher) because leaks could accumulate and pose an ignition risk in that space. R-123 is rated as mildly flammable, so ASHRAE Standard 15 calls for a refrigerant monitoring system in equipment rooms using this refrigerant. The other listed refrigerants are typically considered non-flammable (A1), so they do not require the same monitoring under this provision. The monitoring aims to detect leaks early, trigger alarms, and prompt ventilation to keep the room safe.

Equipment room monitoring is required for refrigerants that are flammable (A2L or higher) because leaks could accumulate and pose an ignition risk in that space. R-123 is rated as mildly flammable, so ASHRAE Standard 15 calls for a refrigerant monitoring system in equipment rooms using this refrigerant. The other listed refrigerants are typically considered non-flammable (A1), so they do not require the same monitoring under this provision. The monitoring aims to detect leaks early, trigger alarms, and prompt ventilation to keep the room safe.