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Steve32
07-08-2010, 11:56 AM
Is it possible to tell how well a DX system is working by measuring the temp of vapor going out and the liquid returning? It's been hot here. My vapor line (measured with a thermocouple firming clamped to the exterior of the line) is around 190 F going out and the liquid line is about 120 F coming back in.
Kevin O'Neill
10-11-2010, 10:05 PM
Capacity of DX systems is normally tested on the air side of the system. It is very inolved, but I can email the procedure to you. You will need several thousand dollars of accurate test equipment to do the testing.

Not a DIY project.
Steve32
10-12-2010, 08:45 AM
Thank you for the reply. I'm not looking for a DIY project here, but I would like to understand what I'd be paying someone to do so I can decide if it's worth the cost or not.

What I'd really like to know is how efficiently my system is running at any given time. I'm sure it's very efficient at the start of the season, but as the ground heats up in the summer or cools in the winter am I still better off or would a air to air system actually be more efficient at some point.
Steve32
10-12-2010, 08:55 AM
Kevin - how do I send you my email address on this system? It's not obvious to me.
Kevin O'Neill
10-12-2010, 10:50 PM
My email is in my profile. Yours should be too, but it is not.

Click on my name and select "view public profile".
air2spare
10-12-2010, 11:31 PM
Is it possible to tell how well a DX system is working by measuring the temp of vapor going out and the liquid returning? It's been hot here. My vapor line (measured with a thermocouple firming clamped to the exterior of the line) is around 190 F going out and the liquid line is about 120 F coming back in.

you can tell how well the ground loops are performing but first we need to know whats in the ground (brand, loop configuration, etc)