This question relates to a 30 year-old 15 story condominium with 150 Trane FCUs.
This is in Hawaii.
The FCUs are serviced quarterly, including new condensate tablets.
Recently there have been several clogs in the copper risers, not in the FCU drain hose.
The clogs have caused expensive water damage.
We have vacuumed out a shocking amount of algae from the riser connected to the involved units but assume cleaning the entire 15 floors of the riser might be needed, unit by unit.
We are reluctant to pressure test to avoid flooding a lower unit if a clog remains on a lower floor.
Will adding more condensate tabs help?
A dose of vinegar quarterly?
Any options beside going through each of the 150 FCUs?
Thank you for any comments.
This is in Hawaii.
The FCUs are serviced quarterly, including new condensate tablets.
Recently there have been several clogs in the copper risers, not in the FCU drain hose.
The clogs have caused expensive water damage.
We have vacuumed out a shocking amount of algae from the riser connected to the involved units but assume cleaning the entire 15 floors of the riser might be needed, unit by unit.
We are reluctant to pressure test to avoid flooding a lower unit if a clog remains on a lower floor.
Will adding more condensate tabs help?
A dose of vinegar quarterly?
Any options beside going through each of the 150 FCUs?
Thank you for any comments.
source https://hvac-talk.com/vbb/threads/2239095-Highrise-Condensate-Drain-Maintenance?goto=newpost
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