On a site we have a pair of Superior combustion boilers of 400 hp each. (Superior as in the brand name not superior as in better although they appear every bit as sturdy as say a Cleaver Brooks!) They were retrofitted to run off either natural gas or number two oil.
Now my question is this. The flame safeguard controller is a Fireye E1000. It's a pretty fancy controller for the time with a scrolling red LED alpha numeric display, etc. After the main trial for ignition, the flame signal always reads about 19-24 volts when burning natural gas.
With oil (there's no pilot obviously with oil just MTFI) the signal is darn near DOUBLE often going over 40 volts! This is an INFRARED sensor. This really seems weird that the oil flame would produce this much stronger of a signal than the natural gas. Both flames are pretty bright through the sightglasses but the oil flame is more of a white kind of like a carbide lamp white.
Anyone familar with this scenario?
Now my question is this. The flame safeguard controller is a Fireye E1000. It's a pretty fancy controller for the time with a scrolling red LED alpha numeric display, etc. After the main trial for ignition, the flame signal always reads about 19-24 volts when burning natural gas.
With oil (there's no pilot obviously with oil just MTFI) the signal is darn near DOUBLE often going over 40 volts! This is an INFRARED sensor. This really seems weird that the oil flame would produce this much stronger of a signal than the natural gas. Both flames are pretty bright through the sightglasses but the oil flame is more of a white kind of like a carbide lamp white.
Anyone familar with this scenario?
