I just had a new heat pump system installed today, and I noticed the (blower) end of the air handler/blower unit is sweating on the outside. I figure this can't be good. Here's my configuration:
Indoor unit (Rheem RHPL-HM2421) is located in the crawlspace.
Outdoor unit (Rheem RPRL024JEC 2ton)
Thermostat (Rheem 305)
20x20 return, 16" supply duct from box to Clean Effects EAC
All new metal ducts (progressively sized) with 8 register drops
It's been running for 5 hours now....the house is feeling great, cooling down nicely and the humidity has pulled down to only 45% inside the house. Btw, this unit (both inside and outside) is freaking QUIET!! I thought my old system was quiet, but this one is unbelievable.
The crawlspace is pretty humid (70 degF at 86% humidity). The poly moisture barrier is old and not in great shape....the installers disrupted it around the install area as well, and it's really musty down there right now. I picked up some 6 mil poly a while ago and will try to get a new barrier down by the weekend.
So are the crawlspace conditions causing the sweating, or is it something in the system or setup? I only noticed it sweating on the far end, away from the supply end. Any help is appreciated, I just want to arm myself with some knowledge before I call up the installer tomorrow.
Also, I am running one of the really thin glass 1" filters (20x20) in the return, in from of the Clean Effects....this is at the recommendation of the contractor. He said the static pressure looked good, and as long as I stay really on top of the 1" filter that I will be fine and it will help save the first filter in the Clean Effects. Thoughts?