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The First Company 9EVRA2L-1 is a refrigerant detection sensor (RDS) kit designed for use with HX Series ceiling fan coils. It provides leak detection capability for systems operating on next-generation low-GWP refrigerants, specifically R32 and R454B. The kit includes the sensor and associated hardware needed to enable refrigerant monitoring at the coil level. This type of component is typically installed by licensed HVAC technicians as part of a code-compliant refrigerant safety strategy in residential and light commercial fan coil applications.
This sensor kit is intended for HX Series ceiling fan coil units that operate with R32 or R454B refrigerants. These refrigerants fall under A2L classification, which carries a mild flammability rating and requires leak detection in certain installation scenarios per current safety codes. The 9EVRA2L-1 addresses that requirement directly, making it a necessary component when upgrading or servicing HX Series fan coil systems charged with these refrigerants.
Compatible with First Company HX Series ceiling fan coil units configured for R32 or R454B refrigerants.
Installation should be performed by a licensed HVAC technician familiar with A2L refrigerant handling requirements and applicable mechanical codes. Power down the fan coil unit completely before servicing any sensor or electrical component. Follow the equipment manufacturer's wiring and mounting instructions for sensor placement. Consult local AHJ requirements, as A2L refrigerant leak detection placement may be subject to specific positioning rules under current ASHRAE and mechanical code guidelines.
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