Googled the net but couldn't find an answer.
My parents had their 20 years old AC system replaced recently. It includes both indoor and outdoor units with two UV lamps. The units are 4-ton American Standard of 14 SEER.
They are in Houston, Texas and the humidity is relatively high, above
50% in the summer. However, it drops to 20% while running the new AC. There was no problem with the old AC. The AC dealer couldn't answer the questioin. It says UV lamps shouldn't lower the humidity, either.Anybody has similar experience? Thanks.