Description
The wheel is commonly found in specialized units such as the 48HDT006-510 model
This valve is built with a brass body and copper stubs to facilitate high-integrity brazed joints
Is this sensor compatible with my existing BAS controller
ensuring robust switching reliability across four separate single-pole double-throw (SPDT) circuits
Common Questions How do I know if my Marley limit switch has failed
Lochinvar & A.O. Smith 100109951 Pressure Switch 321894-706 The wheel is commonly foundWhen you are troubleshooting a pressure switch failure on a high efficiency hydronic system, the Lochinvar & A. O. Smith 100109951 is the specific OEM replacement part required to restore precise combustion air pressure monitoring. This air pressure switch is factory calibrated for the BTN 200 366 series water heaters and boilers, ensuring that the blower is moving sufficient air for safe ignition. As a normally open (NO) switch with a set point of 2.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy

























