Cleaning out some storage and came upon this transformer, not sure why I saved it. Its to a Trane HVAC system. To test if it is working (and thus I would continue to keep as I'm sure it's related to my Trane HVAC) would I just connect line voltage hot to the 115v tab and the neutral to the upper "C" tab then measure for 24vac on the bottom two?
If so, can these show 24v yet still fail under a load? Again, not sure why I'd kept this if I replaced it. (Memory fading....)
I am replacing a busted elbow at the roof vent for a dryer. Looks like there are two options - 1) I can put a new elbow at the roof so the riser duct remains plumb, 2) or, attach the riser duct directly to the roof vent at an angle (I think the roof pitch is between 30-45 degrees) and adjust the elbow at the bottom of the riser. The second option will eliminate one elbow and make the bottom elbow angle more than 90 (better for flow). I am also thinking of securing that riser with metal pipe strap. Riser is about 6-1/2 ft long.
Are there any disadvantages/cons to having long angled riser ducts vs. vertical? (like more lint sticking inside angled vs vertical ducts)
My daughter is complaining that she has a noisy bathroom fan. I open the cover, clean it thoroughly and checked out the fan, and found no problem. The path to the outside is also clear. But she said the problem is still there. I finally found out that the vibration noise only comes when the door is closed. The reason why I did not see the problem was I had the door open when I was working on it. I am trying to understand why the vibration only comes when the door is closed. Does the fan have to work harder when the door is closed? The fan (90 CFM) and old and I want to replace it with a 110 CFM fan anyway. If the size of the room and the closed door has an impact on the running of the fan, I like to understand the reason before I buy a new fan that may not be any quieter.
12-12-22, 07:36 PM
