ac temp.
my 15500 btu ac is duct in but has a dump so you can cool the living area 1st. I was wondering what the temp should be if I stuck a thermometer in the dump or air flow? This is not a year old yet and ...
Forum Discussion
I like to see a 18-20 degree split on my marine units. There's no reason to think it is any different on other types of equipment. Characteristics of air conditioner components do not change, and neither do the properties of rerigerant. Air conditioning isn't rocket science and you have a little wiggle room either way. If you stick a thermometer in the discharge grill you should see 56-59 degree and that's directly off the unit. If it's significantly lower, that's indicative of an airflow restriction. a higher split could be either low charge or the unit is simply undersized for the space. The latter is more likely as these are hermetically sealed units that hold about a pound of refrigerant, so if you get even a small leak, you'll probably lose the whole charge.
Automotive AC is different because they use R134a which has different properties than R22 or R410A, and you will see discharge temps in the 40's. You can't make a comparison between the two.
I have customers who argue up and down that their AC is working great because the discharge air is freezing. They don't notice that 2 feet away from the blower they feel nothing. I don't try to argue with them. I just let 'em sweat it out when the unit ices up.
Automotive AC is different because they use R134a which has different properties than R22 or R410A, and you will see discharge temps in the 40's. You can't make a comparison between the two.
I have customers who argue up and down that their AC is working great because the discharge air is freezing. They don't notice that 2 feet away from the blower they feel nothing. I don't try to argue with them. I just let 'em sweat it out when the unit ices up.
