New unit high humidity ?
#1
07-20-15, 07:59 AM
New unit high humidity ?
April 10, 2015 had new heil installed 14 seer only difference from old unit 2.5 ton is they installed a 3 ton N coil Inside . Temp split is 18. Humidity level runs from 66 to 73 % ? Any help is greatly appreciated.
#2
07-20-15, 08:48 AM
When they oversize an ac system it cools in short bursts and doesn't run long enough to remove the moisture. Not a pro on ac units, they will be along, but some will have a dehumidify mode.
Does yours run continuously or in short cycles?
Bud
By the way, welcome to the forum.
Does yours run continuously or in short cycles?
Bud
By the way, welcome to the forum.
Last edited by Bud9051; 07-20-15 at 08:49 AM. Reason: addition
#4
07-20-15, 10:10 AM
Group Moderator
What? You have a UV filter in the return so the fan is running to keep air moving across it?
Short cycles mean the AC doesn't run long enough to remove humidity. As Bud said, classic symptom of an oversized system.
Short cycles mean the AC doesn't run long enough to remove humidity. As Bud said, classic symptom of an oversized system.
#5
07-20-15, 10:16 AM
Member
In addition to the oversized unit contributing to high humidity, leaving the fan (blower) running continuously will also. You have some water in your condensate pan. When the fan runs with compressor off, you're adding humidity by blowing air over a pan of water, similar to the way a humidifier works. I don't know how much humidity it will add, but I've read that it will add some.
#6
07-20-15, 10:52 AM
Yes a uv filter in return was told to leave fan on to keep circulating air through filter. Setting to auto and will discuss the coil with the installer, he swears it's not oversized that the coil being bigger makes it more efficient. 😁 thx for all the help
#7
07-20-15, 10:57 AM
Member
seer makes the unit more efficient. Turn your blower to auto. This will lower your RH hopefully 8-12%
