This 104C/218F open fuse link operates as a non-reversible thermal cutoff

this MNPT water gauge valve is a standard-issue component for contractors maintaining commercial boilers and storage vessels

which are utilized in both steam and hot water heating systems

it is likely because the control is sitting in a standard well rather than this specific Hydrolevel 48-201

The plated housing contains a durable silicone diaphragm and a snap-acting switch mechanism

Raypak 006535F Flame Sensor This 104C/218F open fuse linkWhen you are troubleshooting a Raypak pool heater that experiences intermittent ignition or rapid lockout, the Raypak 006535F Flame Sensor is often the first component to inspect. This OEM factory replacement partalso identified by model number HENGHUI ZH 251Ais a critical safety element for flame rectification. It works by sending a microamp signal to the ignition control module once a flame is detected, ensuring the gas valve remains open only