It mounts directly on the tubing via a 1/4" female flare S

This valve is designed for bidirectional flow or heat pump service when paired with the appropriate check valve or internal bypass features common to the B-series

With a sensing range up to 200 amps and a switching capacity of 0-250 Vac/Vdc

Can I use a standard hardware store grommet instead

Key Benefits Precise 10K Type II Thermistor: Delivers high-accuracy ambient data for superior economizer control and energy-efficient staging

Lochinvar & A.O. Smith 100208474 Connection Board R-22 It mounts directly on theThe Lochinvar & A. O. Smith 100208474 is a critical low voltage connection board designed for seamless integration with Lochinvar Knight WB51 WB211 series wall mount boilers. As an authentic OEM boiler control interface, this component manages the essential signal pathways between the primary control logic and external system accessories. Technicians recognize this board as the central hub for terminal connections, ensuring that thermostat calls,