Hello all,
I am a big DIY guy in the Navy who has attempted to DIY a full HVAC removal/installation. If you want to read the story for some insight that's part A) if you want the question it's part B)
A) I have successfully removed the old unit, installed and upgraded the new unit from a 2.5 ton to 3.5 ton unit. (Reason for upgrade was shitty cheap contracting on the housing complexes and was installed way under the correct rating) Anyway, everything has been fully installed except I decided to re-run the copper lines as the old unit was a 3/8" discharge & 5/8" suction setup for the 2.5 ton. Now, I need a 3/4" line and 3/8" line ran and I bought a 50' set out of pocket. However, it was a crazy ass angle for how they did the original install so I bought a 4" punch out and drilled a new hole in my siding to make the routing process a lot easier. Upon routing the 3/4" line, I made a nice kink which I researched I can get out with a crescent wrench (no big deal), but I also bent another part of it so hard it cut the line nearly in half (cool, I can get a coupling and join them together). However, two other major problems occurred: the line was going to be too short (honestly a 60' would have worked perfect), and I ended up connecting the condenser side of the line to start brazzing using a bernzomatic torch & some sil sol 15 brazing alloy. For whatever reason, the torch was not liquifying the silver correctly even after 5 minutes of direct application strictly to the silver just to see if it would do anything. It would melt it into a ball at it's peak, but would not liquify it completely. For the excessive amount of time I used to do this, it created a lot of oxidation which I did not want.
B) My question is, how much would it be to have a guy run a 3/8" liquid line and a 3/4" suction line that's approximately 75' from my condenser, through my attic, and down to my air handler on the inside and to braze the connections? I live in San Antonio, Texas if that means anything based off location. Everything else is completed, all I need after the lines run/brazed is to re-install the Schrader valves, vacuum pump the lines, micron test, and release freon. Then check suction/discharge/superheat/subcool/etc. (I can do all this myself, honestly just need the lines ran and brazed)
I am a big DIY guy in the Navy who has attempted to DIY a full HVAC removal/installation. If you want to read the story for some insight that's part A) if you want the question it's part B)
A) I have successfully removed the old unit, installed and upgraded the new unit from a 2.5 ton to 3.5 ton unit. (Reason for upgrade was shitty cheap contracting on the housing complexes and was installed way under the correct rating) Anyway, everything has been fully installed except I decided to re-run the copper lines as the old unit was a 3/8" discharge & 5/8" suction setup for the 2.5 ton. Now, I need a 3/4" line and 3/8" line ran and I bought a 50' set out of pocket. However, it was a crazy ass angle for how they did the original install so I bought a 4" punch out and drilled a new hole in my siding to make the routing process a lot easier. Upon routing the 3/4" line, I made a nice kink which I researched I can get out with a crescent wrench (no big deal), but I also bent another part of it so hard it cut the line nearly in half (cool, I can get a coupling and join them together). However, two other major problems occurred: the line was going to be too short (honestly a 60' would have worked perfect), and I ended up connecting the condenser side of the line to start brazzing using a bernzomatic torch & some sil sol 15 brazing alloy. For whatever reason, the torch was not liquifying the silver correctly even after 5 minutes of direct application strictly to the silver just to see if it would do anything. It would melt it into a ball at it's peak, but would not liquify it completely. For the excessive amount of time I used to do this, it created a lot of oxidation which I did not want.
B) My question is, how much would it be to have a guy run a 3/8" liquid line and a 3/4" suction line that's approximately 75' from my condenser, through my attic, and down to my air handler on the inside and to braze the connections? I live in San Antonio, Texas if that means anything based off location. Everything else is completed, all I need after the lines run/brazed is to re-install the Schrader valves, vacuum pump the lines, micron test, and release freon. Then check suction/discharge/superheat/subcool/etc. (I can do all this myself, honestly just need the lines ran and brazed)
source https://hvac-talk.com/vbb/showthread.php?2225997-QUOTE-FOR-HAVING-3-8-quot-amp-3-4-quot-LINES-RUN-75-IN-HOME-(FAILED-DIY-PROJECT)&goto=newpost
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