Few simple facts:
yr and half 12 1/2 ton Carrier RTU
Unit located aprox 12ft from hood exhaust
Coils washed during spring service
I was up on the roof for a no cool call on a different unit. Took a look around at the other RTU. I notice that restaurant goo is starting to collect on the coils of this unit.(spring service has not been done yet) I know I cant stop the collection of goo but after a good cleaning is there a coating i can apply so that I will not have to use a harsh chemical each time i clean?