A/c problem

[Jeremy]

Well we have two A/c units. One for downstairs one for up. A few weeks after moving in I called the A/c company. Seems the upstairs A/c unit was running all the time and not cooling. Tech comes out and says I have a leak. Tells me he fixed the problem charged it up and guess what eventually the same problem. This time tech comes out and says yep it's a leak. Hey we are going to shut down the unit...discharge it and charge it with co2 and come back in a day or so and check for leaks.

It's frickin 112 degrees out. Should I move out for a day or so?

[Jeremy]

[nicksanspam]

HVAC chemistry? :-)

Nick

[SQLit]

call the owner and demand service.

[Stormin Mormon]

Sound unusual. The only reason I can think for charging with CO2 is to find is "is there a leak, yes or no". Seeing as how you know there is, the challenge is to find and repair the leak.

You may wish to consider another service company. This one doesn't appear to be fixing the problem.

[Stormin Mormon]

Your only service company is the one who's not fixing the problem.

Yer screwed.

[Stormin Mormon]

Actually, carbon dioxide itself doesn't have moisture. But the manufacturing process can get some water mixed in with it, and so it's possible to have wet carbon dioxide.

[TURTLE]

This is Turtle.

Your just being put off to get to make two service calls out of a one service call job.

I can take H-1-G leak detector and tell you where it is leaking at and when i can get the thing fixed in about 1 hour. 2 or 3 days to find a leak is like calling the fire department and they say we will be there in 2 or 3 days.

Call the American Home Shield type insurance company up and give them a cussing and stir it up to get the ball rolling.

TURTLE

[gerry]

That was the dark ages. Modern CO2 is very dry. It is distributed liquefied and almost always only one grade. If it's liquefied, ice would have been a real problem in the process.

Check with a real gas supplier. With O2 for example. aviation grade (ultra dry) medical grade and industrial grade all come out of the same bulk tank. The only difference is tank charging line standards. They use the same lies, purge for the highest grade, fill those tanks and work down. Since the fittings are different, the industrial grade pigtails used for charging need not be kept up to medical.aviation standards.

gerry

[HvacTech2]

Hi Jeremy, hope you are having a nice day

On 07-Sep-04 At About 09:39:09, Jeremy wrote to All Subject: A/c problem

J> From: "Jeremy"

J> Well we have two A/c units. One for downstairs one for up. A few J> weeks after moving in I called the A/c company. Seems the upstairs J> A/c unit was running all the time and not cooling. Tech comes out J> and says I have a leak. Tells me he fixed the problem charged it up J> and guess what eventually the same problem. This time tech comes J> out and says yep it's a leak. Hey we are going to shut down the J> unit...discharge it and charge it with co2 and come back in a day or J> so and check for leaks.

J> It's frickin 112 degrees out. Should I move out for a day or so?

I would call a different company. He should have checked for a leak the first time using an electronic leak detector. and if needed raise the pressure using nitrogen, not co2. you should never use co2 as it has moisture in it.

-=> HvacTech2