{"product_id":"mcdonnell-miller-164400-193-7b-lwco-pump-control-with-potentiometer","title":"McDonnell \u0026 Miller 164400 193-7B LWCO \u0026 Pump Control with Potentiometer","description":"\u003cp\u003eMaintain precise water level management in your commercial hydronic systems with the \u003cstrong\u003e164400\u003c\/strong\u003e combination low water cut-off and pump control. Engineered as part of the \u003cstrong\u003e193-7B\u003c\/strong\u003e series, this essential safety component integrates an adjustable potentiometer to provide reliable monitoring and automatic pump activation, preventing boiler damage due to low water conditions.\u003c\/p\u003e\u003cp\u003eThis control operates by utilizing a probe-based sensing mechanism that communicates with the integrated potentiometer to accurately track water levels. When water drops below the designated threshold, the unit signals the pump to replenish the system, providing a fail-safe measure against dry firing and ensuring the long-term integrity of the heat exchanger.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Control:\u003c\/strong\u003e Integrated potentiometer allows for fine-tuned sensitivity adjustments based on specific boiler application requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Assurance:\u003c\/strong\u003e Dual-functionality provides both critical low water cutoff protection and automated boiler feed pump staging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Construction:\u003c\/strong\u003e Built to withstand the thermal stresses of demanding commercial hydronic environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Designed for use in commercial steam and hot water boiler systems requiring automated make-up water control and low water safety shutdowns.\u003c\/p\u003e","brand":"McDonnell \u0026 Miller","offers":[{"title":"Default Title","offer_id":43125879013470,"sku":"164400","price":2839.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/164400_image_153219c9-e84b-4cb6-ae0c-ad1f423441a6.png?v=1786042657","url":"https:\/\/nationalboilersupply.com\/products\/mcdonnell-miller-164400-193-7b-lwco-pump-control-with-potentiometer","provider":"National Boiler Supply","version":"1.0","type":"link"}