help w secondary LWCO

jimmythegreek

I have a EG95 steam boiler in my commercial rental. had an older S8610U go bad and I just had to rewire the main LWCO (probe 802) the water feeder and the new style S8610U. I got it working correctly and all safety items are tested and working. I have a secondary LWCO that the state wants after a boiler inspection and Im unsure of how to wire it. Currently the LWCO has 24V and 24Vground to it and the harness works the water feeder and has its own boiler 24V that starts the whole loop of controls. The secondary LWCO has the same terminal, Im wondering if I just wire it in series using the 24V hot and ground or does it wire differently using that 3rd output leg of 24V. Its the same LWCO probe type but its manual reset and set lower. They are McDonnel Miller brands

thanks very much for any input, Im rusty on my wiring skills big time

JohnNY

Get a 120-volt secondary LWCO and wire it right off the power switch.
Much easier.