cleaning evaps

[yotaman16]

I was doing a pm today on a new customer and everything was packed, so after 8 hrs i blew out all the condensers and wrote everything up i saw wrong ( what a list that was 2 pages). Well both walkin cooler evaps are packed full and not getting very good air flow.. I vacuumed the coils with no luck, whats the best way to clean the coils out?

[KB Cool]

I've been dragging my water hose equipped with a pistol grip spray nozzle right into the box and spraying away after using some coil cleaner first. Make sure your condensate drain is clear first and go easy on the pressure. This is the kind of hose i use. http://lawn-and-garden.hardwarestore...el-650499.aspx

It's light and easy to carry around just don't leave it out in the sun to long because it's also a POS.

[the mojo]

Nu Calgon foam brite no rinse cleaner works ok. But for sanitizing and removing dirt between evaporator fins try Simple Green non-toxic 3-1 mix with a hot water rinse using a hose. When you're done you won't smell like a goat.

[pecmsg]

When you're done you won't smell like a goat.

Dice isn’t going to like that!

[subcooled_]

I was doing a pm today on a new customer and everything was packed, so after 8 hrs i blew out all the condensers and wrote everything up i saw wrong ( what a list that was 2 pages). Well both walkin cooler evaps are packed full and not getting very good air flow.. I vacuumed the coils with no luck, whats the best way to clean the coils out?

If they're really caked on, use a wire brush and carefully brush vertically. Then coil cleaner, then the hose if needed.

[yotaman16]

ok so the coil cleaner that i use plan and simple didnt help and the hose made a mess.. Man what a day that was. Trying not to soak all of there product that was in the walkin and trying not to make a mess.. Well it didnt work However after washing them 3 times and spraying them with hot water there are clean.. Im deff trying a diffrent aproach next time and probible what the mojo suggusted simple green

[hvac wiz 79]

i was surprised when i used that no rinse evap cleaner in a can by nu calgon on how well it worked .. the green one in the gallon jug however sux

[subcooled_]

I have also been disappointed with the green gallon Nu-Cal no rinse. Is that blast a coil in the can?

[yotaman16]

yea the johnstyone recomented the green ****.. wait till i see them boys... I will never wast my time on that stuff.. I had also though about using that foam no rinse conderser coil cleaner.. I dont see there would be any diffrence? Ive had great luck getting grease off... Any one tryed that on evaps...

[Tech Rob]

I usually knock the chunks off with a plastic fin brush first.

Alkaline Nu-brite, diluted and conservatively applied will pretty much eliminate any crud you can imagine. You just have to take the necessary safety precautions with any acid-based cleaner.

Triple D is a good all around non-acid cleaner, too.

[hvac wiz 79]

i also find nu calgons no rinse cond coil cleaner is crap .. the nu brite in a can is great but needs to be thoroughly rinsed .. i agree with scraping off chunks if possible

[ducktheairman]

Yeah, I have and so far worked good for me.

[ducktheairman]

yea the johnstyone recomented the green ****.. wait till i see them boys... I will never wast my time on that stuff.. I had also though about using that foam no rinse conderser coil cleaner.. I dont see there would be any diffrence? Ive had great luck getting grease off... Any one tryed that on evaps...

Yes, I have used it on evaps, and it worked good for me...If anyone knows a better way PLEASE post I am all ears!