Resideo V8043F1512 Valve R-134A it functions as a normally

it functions as a normally open (NO) switch that closes upon reaching 115°F and maintains a 20°F differential

visible arcing at the contacts

Direct Compatibility: Engineered specifically for Carrier-family fan coils and air handlers

the standard NEMA 1 enclosure is primarily intended for indoor use

This discharge air temperature sensor is built to withstand high-duty cycles in residential forced-air applications

Resideo V8043F1512 Valve R-134A it functions as a normallyThe Resideo V8043F1512 is a professional grade 3 4 inch ProPress zone valve designed for high efficiency hydronic heating systems. As a normally closed unit, it manages the flow of water to baseboard radiators, convectors, and fan coil units with precision. This model features terminal block connections for simplified field wiring and an integrated end switch for auxiliary equipment signaling, such as firing a circulator or boiler. Engineered for 24V