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  1. Replies
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    Make sure all of your drain traps are filled with...

    Make sure all of your drain traps are filled with water. Sewer gasses can seep in if one of your drains are dry. Hidden floor drains under a washing machine come to mind.

    We had this problem once....
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    Love that last picture! Changing the condenser...

    Love that last picture! Changing the condenser fan motor will be fun on that backwards install. UNBELIEVABLE!
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    I just had a Bryant with the exact same problem....

    I just had a Bryant with the exact same problem. Leak at compressor suction stub. How does a leaky unit leave the factory? Added 3 hours to my install! Also, same unit had male to male wiring for the...
  4. I bought a D-Tek Select three years ago. I have...

    I bought a D-Tek Select three years ago. I have come to trust this thing 100%. If it doesn’t go off, there is no leak. If it goes off, there is always a leak. I’ve had absolutely no false positives...
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    On 1” or larger, we can usually just push (or...

    On 1” or larger, we can usually just push (or pull with fish tape) it through. Depends on how long and how many ells. On ĺ”, have to assemble the line and run tape at the same time, as it is...
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    Our state has no refrigeration licenses. I’m not...

    Our state has no refrigeration licenses. I’m not sure about Minneapolis or other towns, they may have a license requirement locally.
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    I used to put heat tape on the outside of the...

    I used to put heat tape on the outside of the drain line, but lately, we’ve been running all our self-regulating heat tape inside the drains. Sometimes copper, sometimes pvc. Insulate Pipe good,...
  8. You must not have read the post you quoted....

    You must not have read the post you quoted. $4,000 gas bill with everything shut off. Are you saying people should wait for an explosion before looking for a leak?
  9. I’ve had good luck using refrigerant and my leak...

    I’ve had good luck using refrigerant and my leak detector to find leaks in gas piping. It’s a huge time saver being able to eliminate joints and pinpoint leaks, or at least get you in the general...
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    Also, who says someone didnít punch a screw or...

    Also, who says someone didnít punch a screw or nail through it after install. Or, the lines vibrates against something, causing a leak?
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    I always thought it’d be cool to have an...

    I always thought it’d be cool to have an HVAC-Talk social/convention, so we could meet each other, face-to-face, and have a few cocktails. All you guys have been so helpful to me and I count everyone...
  12. You can absolutely replace the furnace only....

    You can absolutely replace the furnace only. Doing it all at once will be less expensive than doing it in 2 stages, but if you don’t have the money, you don’t have the money. It should be no problem...
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    Had one system that passed the leak test on...

    Had one system that passed the leak test on install, then every week or so, would go empty. Isolated coil, condenser, and lines. Did standing leak test overnight and all three components passed....
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    Going to do a furnace replacement in th...

    Going to do a furnace replacement in th caretakers cabin on a private island. Gave the caretaker a call and told him we would be out in 2 days to do the replacement for him. He said “not this week”....
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    If this line set is in the wall, a nail or screw...

    If this line set is in the wall, a nail or screw could have punctured it after the lineset was pressure tested at original install time.
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    4,612

    My van can look like the OP’s after a big install...

    My van can look like the OP’s after a big install or a busy week, but I’ve made it a habit that Sunday is cleaning/restocking day. I start every week with a clean, stocked, and fueled up vehicle.
    ...
  17. Poll: The fuse is basically there to protect the...

    The fuse is basically there to protect the transformer from burning up. It has nothing to do with the board going bad. The 5 amp fuse may have contributed to the fried transformer. If I was the tech,...
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    Although comfort cooling and commercial...

    Although comfort cooling and commercial refrigeration have basic similarities, refrigeration problems have $$$$$ of product sitting on your shoulders.

    One time, we started a job installing 16...
  19. Had a natural gas unit heater in the shop for...

    Had a natural gas unit heater in the shop for years. Mitsubishi Rep was yapping about hyper-heat heating down well below zero. I said he was full of bull. He gave me a personal use price on a...
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    Good Question!

    Good Question!
  21. My question is: Why would you even want a...

    My question is: Why would you even want a manifold? On 80% of my installs (commercial refrigeration and A/C) I use the Appion valve core removal tools, large hoses, and a pump. When Iím down to a...
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    I seem to recall from a Copeland seminar that...

    I seem to recall from a Copeland seminar that they make a contactor that only closes when the AC voltage is at 0 volts. Somehow, it monitors the hertz and operates when the cycle is at zero.
    ...
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    I can’t actually remember ever finding a leak in...

    I can’t actually remember ever finding a leak in a process tube. Not saying it couldn’t happen, but I’ve never seen it.
  24. Replies
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    Just called my supplier and ordered some Red...

    Just called my supplier and ordered some Red Epoxy. Thanks for the posts. Nicely done.
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    That’s hilarious!

    That’s hilarious!
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    I totally get it. It’s frustrating! Let us know...

    I totally get it. It’s frustrating! Let us know if epoxy works. 410a?
  27. Replies
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    With more and more manufacturers going to...

    With more and more manufacturers going to micro-channel, we are all going to have to master repairing these things. I’m going to practice in the shop till I master this. It drives me nuts that I...
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    Snapperhead, were we working on the same thing?...

    Snapperhead, were we working on the same thing? Like I said, over 5 hours of trying. First with aluminum rod and no flux, like PHM said. Then, aluminum solder with flux from Harris. No good.
    ...
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    Just had one of those. Tried aluminum solder....

    Just had one of those. Tried aluminum solder. Cleaned with stainless steel brush and stainless steel dremel rotary brush. Got over 5 hours in trying, but couldn’t completely seal the leak. Tried with...
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    The square ceiling cassettes are considered four...

    The square ceiling cassettes are considered four way, because they throw air all four directions. The new unit is considered one way, because it only throws air in one direction
  31. Replies
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    We use the SLZ type ceiling cassette a lot in...

    We use the SLZ type ceiling cassette a lot in suspended ceiling applications. We have installed them in residential sheet rock ceilings on occasion. Itís easiest during construction. You may need to...
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    STUPID UPSIDE DOWN iPHONE PICTURES!

    STUPID UPSIDE DOWN iPHONE PICTURES!
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    Putting two of those in tomorrow. Setup seems...

    Putting two of those in tomorrow. Setup seems simple, hopefully the reliability is good. I like the simplicity, fewer moving parts, no belts, no tensioners, no bearings, easy to clean.
  34. EXACTLY. 90% of our calls is either electrical or...

    EXACTLY. 90% of our calls is either electrical or dirt.

    As stated before, take stuff apart, put it back together, try to fix random broken items. Be curious, be inquisitive, figure out how things...
  35. Iíve had a Mitsubishi mini split installed and...

    Iíve had a Mitsubishi mini split installed and running at my cabin for 19 years. Iíve got a 5 year old Mitsubishi Hyper Heat in the shop that heats and cools all year long in Northern Minnesota. No...
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    Just had one exactly like this. We isolated the...

    Just had one exactly like this. We isolated the bad circuit and disconnected it from the system. The homeowner did not want to tear into the walls. At least they are up and running on two heads.
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    Leak sealer on a mini split? You have two...

    Leak sealer on a mini split? You have two connections at each unit. Find the leak, fix it and be done.

    I might use one can of Easy Seal a year as a “Hail Mary” on a system that has buried lines...
  38. If the ball of ice is actually on a condenser...

    If the ball of ice is actually on a condenser line, then there is a restriction in the condenser. Very rare. The condenser tubing is relatively large and not easily plugged. If there was a...
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    Nothing would happen. It would be as if nothing...

    Nothing would happen. It would be as if nothing was connected.

    ???
  40. Replies
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    I would give “flex-seal”, that tape advertised on...

    I would give “flex-seal”, that tape advertised on tv a try. I used it on a motorcycle gas tank that I was restoring. I used it to cover the holes where the fuel petcock attaches to the tank.

    I...
  41. Not a weed whacker... Dog urine.

    Not a weed whacker... Dog urine.
  42. Permanent Locking Caps or is it a Branch Circuit?

    Went on a residential call for a ďno-coolĒ. Homeowner says itís probably out of Freezone. I asked him why he thinks itís out of refrigerant, and he says he thinks the tree took it.

    Sawzall...
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    We never leave coils, horizontal or vertical, we...

    We never leave coils, horizontal or vertical, we cut the lines to the exact length. We’ve definitely run lines up from the indoor unit to get to the outdoor unit. Again, each manufacturer will have...
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    Maybe. I’m actually sitting on the deck at the...

    Maybe. I’m actually sitting on the deck at the cabin and not working for the first time this Summer. My whole van could be missing for all I know, and at the moment, I don’t even care. :cheers:
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    BBeerme, did you go to my truck and steal my...

    BBeerme, did you go to my truck and steal my stuff? Same pump, hoses, and valve core tools. I think the scratches on your pump label are close to the same as mine as well. Funny.
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    Yes. The only limitation would be total line set...

    Yes. The only limitation would be total line set length. Depends on brand.

    Make sure that the insulation does not get damaged when running lines in suspended ceiling or you will get condensation...
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    That took more than one sheet of tin. :whistle:

    That took more than one sheet of tin. :whistle:
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    DON’T use a manifold and hose set for vacuum...

    DON’T use a manifold and hose set for vacuum work! Using that setup will add hours to your day. Use Appion valve core tools with large diameter vacuum rated hoses and a micron gauge. Leave your...
  49. I’ve had some of those old reciprocating...

    I’ve had some of those old reciprocating compressors with a broken internal mounting spring. When they shut down, the motor would slap against the compressor shell. Annoying, but they still run. Only...
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    Yes, and make sure the valves on your manifold...

    Yes, and make sure the valves on your manifold are closed. Otherwise you are the one equalizing the pressures.
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