-
How to measure pressure?
I'm planning to take a look at my home HVAC system myself, as I don't think it's performing too well. I'm fairly mechanically inclined, so nothing should go wrong. ;)
What I'm looking for is advice how to measure pressure at the service ports. Is there a single pressure gauge that I can buy? Or do they only come as manifold gauge sets? I don't think I'll be doing any charging myself, but who knows what the future brings :D
Are all manifold gauge sets more or less equal if they will be seeing light duty? What's the difference between a $30 set and $150? Durability? Accuracy?
-
You will need a manifold. More importantly will you have any idea what the guage is telling you? Before you even look at the guage you need a psychometer, Superheat,Subcooling card, and a digital thermometer. If you don't know what those are for hire someone who does. Honestly I have seen more homeowners do damage than good. Outside of that, grab the suction line if it's beercan cold then the unit is working and has refrigerant. (maybe not perfectly)
-
Yes, I understand the concepts of refrigeration quite well, I'm wondering about the real world things, that don't come from reading. Like what makes a $150 gauge set better than a $30 one. Will the cheap Chinese stuff seal poorly? Will it be off by 10% on the readings? Stuff like that.
-
This is not a DIY site. Please read the site rules. Most likely the mods will close this thread soon.
Get a contractor. There are so many things to check besides pressures, you are likely to do more harm than good checking it yourself.
-
Not only that, but you could get injured very seriously. Call a contractor
-
Go take a couple courses at your local trade school/college.
Then you will know the difference.
Sorry, this is not a DIY site. So we are not allowed to give out DIY advise.
Please read Site Rules Thank you.
Thread closed.