Hydrolevel 750SV Low Water Cut-Off Refrigerant Why is external equalization necessary

Why is external equalization necessary on this 12-ton valve

for applications requiring power-loss carryover

Rated for a 680 PSI maximum pressure

this Spence regulator repair part preserves the original factory geometry

Hydrolevel 750SV Low Water Cut-Off Refrigerant Why is external equalization necessaryThe Hydrolevel 750SV Low Water Cut Off is a professional grade electronic safety control designed primarily for hot water boilers or as a secondary safety on steam boilers. Operating on a 120Vac circuit, this unit provides immediate burner circuit interruption if water levels drop below the probe. Unlike automatic reset models, the 750SV features a manual reset function that activates after a 30 second delay, ensuring a technician or operator must