Good method to determine how cold your ac is blowing and what is normal temp?
#1
08-13-16, 09:50 AM
Good method to determine how cold your ac is blowing and what is normal temp?
I just put a new GE 6600 btu through wall unit in on Wednesday. I'ts not blowing as cold as it seems like it should be. When I point my infrared thermometer at various points around the blower wheel through the vent, it's lowest temp is low 50's, while in my experience with ac, is the normal is low 40's. Our other unit, which is a 8000btu window unit, is in the low 40's around the blower wheel. Both set at 78 degrees, and temps taken when compressor is running.
Is my thinking wrong, or does my unit seem to be defective?
Perhaps there is a more efficient way to take temperature readings?....
Is my thinking wrong, or does my unit seem to be defective?
Perhaps there is a more efficient way to take temperature readings?....
#2
08-13-16, 09:56 AM
Group Moderator
It doesn't really matter what the thermostat is set for..... if the compressor is running..... that's as cold as it will get.
A 6600 btu thru the wall unit ? I've never seen one that small.
Did you just stuff the 6600 in an existing sleeve?
A 6600 btu thru the wall unit ? I've never seen one that small.
Did you just stuff the 6600 in an existing sleeve?
#4
08-13-16, 10:11 AM
Usually low 50s is fine, but different brand/size may be a little different. If you don't like this one, return it, go get a different one. (blower speed makes it different too)
#5
08-13-16, 10:20 AM
Group Moderator
#6
08-13-16, 10:28 AM
Yup that's it. I'ts cold, but it just seems like for a brand new $700 unit, it should be ice cold at the vent.
However, I don't think there are any other units that will fit in this sleeve and that thing just got plastered in and caulked around the exterior.
However, I don't think there are any other units that will fit in this sleeve and that thing just got plastered in and caulked around the exterior.
#8
08-14-16, 10:46 AM
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My personal opinion is that an infrared thermometer is not to believed in far too many instances. For measuring the temperatures of A/C systems I use a bead thermocouple. This will actually measure the air temperature and also has a fast response time.
Lacking a thermocouple meter you can use an electronic digital kitchen thermometer IF its range goes down to around freezing.
Lacking a thermocouple meter you can use an electronic digital kitchen thermometer IF its range goes down to around freezing.
#9
08-14-16, 12:26 PM
Guys, I think it's good now. Feeling icy cold like the other unit. I just finished caulking some areas in the room that likely were drafty. On a side note..... I've got a window unit in storage because the fan had gotten noisy. It was only about a year old fridgidaire and started screeching. I want to oil it if that's what is recommended. If so,what oil should I use?
#10
08-15-16, 07:35 AM
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It's highly unlikely the motor has any oil ports. Even if it does, once it starts to screech you can pretty well bet it's toast. You might get lucky & find the fan has slipped on the shaft & is rubbing against something.
#11
08-15-16, 03:18 PM
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The indoor humidity is the biggest factor determining the supply air temp; high humidity less temp-drop.
