Quote:
Originally Posted by jrref
RetiredGuy's post is correct. All you need to use is hot water. For whatever reason Carrier doesn't want vinegar or bleach and you may void the warranty if you use it. In addition, if the drain is maintained, you don't need anything more than hot water. When these HVAC guys come to do their maintenance they pour a chemical down the condensate line to prevent mold and other organic growth. After that is done, plain water is all that's needed until the next serviced. Now if you don't maintain your drain and it gets clogged then you need to put a shop vac on the output of the drain and flush it out.
Similar situation with the condensor and evaporator coils. The current thinking is no chemicals, just water. When properly maintained that's all you will need but if you don't clean your coils and the outside unit gets a "fur coat" then it's best to let your HVAC company get it clean. On the newer systems, the coils are more delicate so you need to be careful.
If you have an old 20-30 year old system then "go at it". Use whatever you want to clean the condenser because nothing will hurt it.
The point is if you do the periodic maintenance, the drain and outside and inside coils will not get dirty enough to require harsh chemicles to ge them clean.
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#1...Above is true on Carrier HVAC systems direct from Munn's service people.
#2... I also was told along with hot water once a month, add a couple drops
of Dawn dishwashing soap for lubrication.
#3... Use a HVAC service people at least once a year, and you'll sleep better knowing your
AC taken care of. Spend your time golfing.
#4... Your Welcome