Simply PLC Apps in Boiler Auto Control

Today modified the Aux boiler feed water pumps control box by PLC module.

The original box was composed by 6 pcs contactors & 2 pcs timer delay, but the dwg was not reasonable via one of the pumps stops, the timer delay still the feed pump has to stop after 20 seconds later.

here’s the original  mess

.aux boiler feend pump cb-20110501

We used 1 PLC to replace all the contactors.

How did I compose the text? I will post it a while later 🙂

boiler feed water pump cb-20110504

And tested in order after completion and operation qualified and stable.

Does the Control Box look tidy?

Just check it out.
boiler fd water p/ps cb-20110503