Weil McLain 510-312-090 Control R-410A its compact design and reliable

its compact design and reliable on/off/floating logic make it a standard replacement for many VAV box actuators and small air dampers

non-spring return direct coupled actuator engineered for high-torque HVAC applications

this full port ball valve ensures unrestricted flow and 100% factory-tested leak-free performance

though horizontal installation is preferred to minimize friction on the TD52 replacement disc

hot surface igniter (HSI) warm-up

Weil McLain 510-312-090 Control R-410A its compact design and reliableThe Weil McLain 510 312 090 Control is a specialized EZ Temp combination operating limit and manual reset high limit switch engineered for hydronic boiler systems. This OEM Weil McLain replacement part serves a critical dual purpose role: regulating system temperature within a 130 230F operating range and providing a secondary fail safe to shut down burners if water temperatures exceed safe thresholds. Featuring a 1 2 inch NPT connection, the 510 312