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Search took 0.02 seconds. Search: Posts Made By: TomWS

Forum: Geothermal & Heat Pumps

02-14-12, 01:04 PM

Replies: 24

Pressure Test Mini Split with air instead of Nitrogen?

Views: 41,241

Posted By TomWS

I'm virtually certain that BradC had his tongue...

I'm virtually certain that BradC had his tongue firmly planted in his cheek when he made that suggestion. At least that's how I took it and he made his point, reinforced by dcex, that vacuuming to a...

Forum: Geothermal & Heat Pumps

02-13-12, 02:25 PM

Replies: 24

Pressure Test Mini Split with air instead of Nitrogen?

Views: 41,241

Posted By TomWS

If the US DOD can shoot mosquitos with lasers, I...

If the US DOD can shoot mosquitos with lasers, I can certainly go along with sucking out the moisture!

Actually, this was the point of my OP. IF I do plan to vacuum, is it safe to use compressed...

Forum: Geothermal & Heat Pumps

02-13-12, 10:56 AM

Replies: 24

Pressure Test Mini Split with air instead of Nitrogen?

Views: 41,241

Posted By TomWS

Yes, this was my plan all along. I can justify...

Yes, this was my plan all along. I can justify the cost of the pump if I need a larger one, by making larger furniture. :D

Where do you get the bottle filled?

Hear! Hear! That's why I'm...

Forum: Geothermal & Heat Pumps

02-13-12, 07:12 AM

Replies: 24

Pressure Test Mini Split with air instead of Nitrogen?

Views: 41,241

Posted By TomWS

Let me see if I understand. Even if I use...

Let me see if I understand.

Even if I use compressed atmospheric air (not specially dried) to pressure test the lines, since there is so little volume in the linesets, I won't be introducing a...

Forum: Geothermal & Heat Pumps

02-12-12, 11:49 PM

Replies: 24

Pressure Test Mini Split with air instead of Nitrogen?

Views: 41,241

Posted By TomWS

I can get nitrogen at a paintball shop??? How...

I can get nitrogen at a paintball shop???
How do they sell it?
How much pressure is in the tank?
What fittings are used?

I was imagining having to go to some industrial supply places and...

Forum: Geothermal & Heat Pumps

02-12-12, 04:46 PM

Replies: 24

Pressure Test Mini Split with air instead of Nitrogen?

Views: 41,241

Posted By TomWS

I'm enjoying this discussion! Re Serto...

I'm enjoying this discussion!

Re Serto fittings, one thing I liked about them, in addition to not having to flare the tube, was the fact that the installation procedure simply calls to tighten 1...

Forum: Geothermal & Heat Pumps

02-12-12, 08:06 AM

Replies: 24

Pressure Test Mini Split with air instead of Nitrogen?

Views: 41,241

Posted By TomWS

AC_Hacker & DC-X, thanks for the response! I'm...

AC_Hacker & DC-X, thanks for the response! I'm glad there are 'alternative' thinkers out there who challenge the accepted practice. While I'm all in favor of following the process if you've got the...

Forum: Geothermal & Heat Pumps

02-10-12, 08:48 AM

Replies: 24

Pressure Test Mini Split with air instead of Nitrogen?

Views: 41,241

Posted By TomWS

Pressure Test Mini Split with air instead of Nitrogen?

I'm going to be installing two mini split heat pumps for my workshop and wonder if air can be used to pressure test instead of nitrogen?

My reasoning is that the line sets are open to the air...

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