Kromschroder Thermo pilot burner ZT40B-150A 84221063

The Kromschroder Thermo pilot burner ZT40B-150A (SKU 84221063) is a thermoelectric pilot burner with a tube diameter of 40 mm and a length of 150 mm. It uses a thermocouple as the flame detector and is designed for ignition of gas burners. This model operates without electrical grid connection, suitable for natural gas, town gas, or LPG. It is intended for use with safety shut-off thermoelectric valves.

Parts of this type are selected by matching the tube length, diameter, mounting flange pattern, and orientation to the original burner series. The gas orifice size must be compatible with the fuel type and supply pressure. Before ordering, verify the manufacturer code against the burner specification and inspect the old part for signs of overheating or distortion. Ensure the pilot gas line is clean and free of debris during installation.

Items of this kind can fail due to thermal stress, sooting, or gradual erosion of the tip. Symptoms include ignition failure, nuisance lockouts, or unstable flame. Check for sooting, cracked ceramic, or drifting electrode gap if equipped. Inspect the gas orifice for blockage and ensure the thermocouple is functioning properly.