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allowing for sensor replacement without draining the entire boiler loop
vibration-resistant connection to the system control board
this Danfoss BML valve ensures reliable shut-off under high-pressure conditions
The heavy-duty hub construction provides the necessary rigidity to prevent blade flex during high-ambient operation
Hydrolevel 170SV Low Water Cut-Off 30067439-890 allowing for sensor replacement withoutThe Hydrolevel 170SV Low Water Cut Off is a heavy duty safety control engineered specifically for hot water boiler applications. Operating at 120 VAC, this unit effectively prevents burner operation during low water conditions to protect the heat exchanger from dry firing damage. It features an automatic reset function that restores burner operation immediately once the water level returns to a safe operating range. The Safgard 170SV is a reliable
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