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10-02-2012, 02:52 PM #14Professional Member*
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- North GA
Galatians 2:20-21; Colossians 1: 21-22 & 26-27; 3:1-4; Romans Ch's 5-6-7-8
2 Chronicles 7:14
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10-02-2012, 03:23 PM #15
10-02-2012, 04:15 PM #16
However, if you already have a lineset under the slab, and it's in a sleeve vs. in contact with soil (such as was the case with my parent's house, who suffered multiple compressor failures as a result), and all you want to do is tie into where the line set emerges into the existing condenser's location, and extend further over several feet, that may be okay...it might also create an oil return problem that was not there before, due to added line length and slowed velocities. Total line length would need to be considered for this proposed extension."In this house we obey the laws of thermodynamics!"
- Homer Simpson
10-02-2012, 04:44 PM #17
FYI, due to the configuration of the attic "around" the atrium, running the lineset up through the attic and then down the exterior wall would likely involve a lineset of at least 60'.
10-03-2012, 12:04 AM #18
I'd only run the refrigerant lines under ground if they were in an absolutely water tight PVC chase, and I'd use the smallest allowable vapor line size for the application to keep the refrigerant velocity high for oil return.
The one you cited is for high voltage equipment, 600v+.If more government is the answer, then it's a really stupid question.
10-03-2012, 11:58 AM #19
(1) extend the lineset to approximately 60' by running it up from the ahu, through the attic, around the perimeter of the atrium, then down the exterior wall inside a vertical chase to the new location, or
(2) use the existing PVC chase under the foundation to get the lineset outside where it is currently, then extend the insulated lineset horizontally through a vented chase along the exterior atrium wall (no more than 12 inches above the ground) to the new location, for a total run of no more than 40'. Snow is not an issue (lol) and at 12" above ground, water is not an issue either... I have excellent drainage... proven during TS Faye in 2008.