When replacing a hydronic circulating pump

making it suitable for hybrid AC/DC control circuits

With a temperature rating up to 250°F

maintaining the exact furnace pressure specifications required by the manufacturer

How do I troubleshoot a failure to initiate defrost on this control

Lochinvar & A.O. Smith 100208635 Ignition Cable 326058-756 When replacing a hydronic circulatingThe Lochinvar & A. O. Smith 100208635 Ignition Cable is a critical OEM spark ignition lead designed for high performance gas fired boilers and water heaters. Measuring 48 inches (48") in length, this cable provides the necessary high voltage pathway from the ignition control module to the spark electrode, ensuring consistent burner light off. Built to withstand the extreme thermal conditions of a combustion chamber, the high temperature insulation