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Type: Posts; User: Restaurant mech

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  1. Replies
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    But you've modified the capacity of the system...

    But you've modified the capacity of the system with changing the dryer.
    As I and other's have pointed out keep charging until head pressure is at least 120 if the ambient is above 70 degree.
    ...
  2. That's actually fairly normal. And also why I...

    That's actually fairly normal. And also why I try not to install multi zone systems on different floors.
    If either zone calls for heat, then both evaporators get heat. If system is cooling then...
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    30 degrees isn't too low for heat pump operation....

    30 degrees isn't too low for heat pump operation. They work just fine down to zero.
    The reason for setting a cut off higher is for cost reasons. What is your price for gas heat vs electric heat...
  4. Last nuisance rollout trip I had was on a york...

    Last nuisance rollout trip I had was on a york rtu.in the end it was the solder joint on the board for the fan relay.
    Everything would work perfectly fine for a week or 2 after the rollout trip...
  5. I haven't worked with that model thermostat. But...

    I haven't worked with that model thermostat. But it seems to me the tech is missing something in the programming of it.
    Yes em heat will come on because you have the temp set lower at night.
    ...
  6. Or better yet, use it for climbing up the side of...

    Or better yet, use it for climbing up the side of the building when some kids shoved bubble gum into the mechanical room lock.
    The lock thing happened to me yesterday.
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    Being as we can't see it what I'd do is find a...

    Being as we can't see it what I'd do is find a great contractor, ask them to check it out and make recommendations from there.
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    My first suggestion is replace the nest...

    My first suggestion is replace the nest thermostat. It may in fact be the cause of your troubles
  9. Replies
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    I'd actually just try adding a pinch more 134. ...

    I'd actually just try adding a pinch more 134.
    These one's seem to run really nice at 125/15 psi.at about 75 degrees.
    Probably just needs about half an ounce or so
  10. The lack of Schroeder is also due to regulations...

    The lack of Schroeder is also due to regulations regarding consumer goods and regulation of refrigerant.
    99% of people that hear I do refrigeration always ask me to pump up their refrigerator...
  11. If it was running most of the day and doing a...

    If it was running most of the day and doing a great job then likely you'll be fine with installing the same sized unit.
  12. Well as far as ductwork goes, you can get pretty...

    Well as far as ductwork goes, you can get pretty close on how much it will handle just by measuring it. Or if the blower and static specs are available on the existing unit you can run the unit and...
  13. As far as brands go Bryant, trane, Rheem they...

    As far as brands go Bryant, trane, Rheem they are all fine.
    Personally I'd go with Bryant but that's just from a service and parts perspective for me.
    For the longest lasting trouble free...
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    I pick my mint at the shoreline of my cabin.

    I pick my mint at the shoreline of my cabin.
  15. Just can't suck and blow at the same time

    Just can't suck and blow at the same time
  16. Replies
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    The knobs and position look like a moffat. But...

    The knobs and position look like a moffat.
    But really could be anything
  17. Replies
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    Probably purchased motor,inducer wheel and motor...

    Probably purchased motor,inducer wheel and motor cooling wheel as it's really cheap to do it that way on carrier stuff.
    Carrier wants a ton of money for the whole assembly.

    The only...
  18. Replies
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    Not really the answer your looking for. But I...

    Not really the answer your looking for. But I put a ton of importance on manufacturer training
  19. I guess it depends on what's wrong with it. Could...

    I guess it depends on what's wrong with it. Could just be a simple fuse let go.
    Generally I find electric heat cheap and easy to fix. But some of the newer stuff has electronic boards that get...
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    I see a coupler built into the vent that's on the...

    I see a coupler built into the vent that's on the outside at both ends. And that certainly doesn't pass up here.
    Need to pop it a part and crimp that end so it slides into the downstream pipe....
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    Really as far as how long you can shower it will...

    Really as far as how long you can shower it will depend on the flow through the shower head.
    If your shower head flows 5 gallons per minute then in less than ten minutes you've used an entire...
  22. Sucking in snow or rain will certainly do that....

    Sucking in snow or rain will certainly do that. Look into snow or wind guards for the unit.
    And it will need a complete defrost to work properly once guards are in place
  23. Replies
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    Yeah i saw that one too. Doesn't say much about...

    Yeah i saw that one too. Doesn't say much about where it's made.
    And not that I'm totally against imported stuff. But if it's close in price I'll go with north American stuff. Generally easier to...
  24. Could be the Schroeder valve was leaking a tiny...

    Could be the Schroeder valve was leaking a tiny bit before he even hooked up his guages. Then sometimes after checking the system they stop leaking.
    My habit is to use soap on the Schroeder...
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    I think I am gonna give them a shot in early...

    I think I am gonna give them a shot in early spring.
    They seem like quality machines and the price is really good.
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    Rams metal working equipment

    Been looking for a pittsburgh machine for a while. Seems this U.S. built Rams stuff is close to the same price as old used equipment on ebay.
    Anyone have any experience with this manufacturer?
  27. Replies
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    If you energize more than one winding at a time...

    If you energize more than one winding at a time you release the mysterious blue smoke that makes the motor operate.
    You can make these universal motors operate on the different speeds by adding...
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    I haven't used one in years..... But my...

    I haven't used one in years.....
    But my solution for the van back in the day was 2 pvc pipes with thread on caps on the bottom.
    Mounted the pipes to my parts rack with the proper spacing to...
  29. As mentioned above. Getting a 4 inch thick filter...

    As mentioned above. Getting a 4 inch thick filter box mounted and you'd be good.
    Typically I'd quote around 4 hours to do the sheet metal work and install.
    So it's not usually a huge...
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    Sorry we can't help you with this type of diy.

    Sorry we can't help you with this type of diy.
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    Shut the gas off going to the fire pit and call a...

    Shut the gas off going to the fire pit and call a pro. A gas leak isn't something to play around with.
  32. Check out the Emerson sensi. I've had great...

    Check out the Emerson sensi. I've had great success with them.
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    I didn't see any advantage to the fieldpiece...

    I didn't see any advantage to the fieldpiece meters. That's why I bought the cheap uei 479. It's got everything I need and nothing I don't.
    I really like the fieldpiece stuff I've got. But for...
  34. I once did a government facility mistubishi...

    I once did a government facility mistubishi installation that had a 600 psi nitrogen test for 24 hours and a 500 micron test for 12 hours.
    The reason for the micron rise test is due to where...
  35. The secondary heat exchanger was a really huge...

    The secondary heat exchanger was a really huge mistake on the part of carrier for these units.
    I believe the replacement secondary is stainless steel which solves the problem. ( i believe all...
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    If the compressor itself is turning into a block...

    If the compressor itself is turning into a block of ice then that's definitely something to deal with.
    A few things can cause that. A frozen evaporator, low charge, or either the wrong...
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    I just picked up the fieldpiece kit. And I...

    I just picked up the fieldpiece kit. And I installed service tees on my manifold so that I can use these for charging as well.
    So far I'm impressed with the set. And it's like having a digital...
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    I open the system with the valve core tool in...

    I open the system with the valve core tool in place. I even replace leaking cores while systems are running.
    It's definitely a little harder to get the core threaded into place under high...
  39. Odds are anything you plan on installing there...

    Odds are anything you plan on installing there isn't going to work properly.
    If you don't understand what you are looking at call a pro. It will be much cheaper in the end
  40. Replies
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    Minus 24 f up here today. Can't say enough good...

    Minus 24 f up here today. Can't say enough good things about the Milwaukee jacket. Just finished changing a board on an old rtu.
    Having the hand warmers built into the pockets is absolutely...
  41. That coil would work. Would take some fine...

    That coil would work. Would take some fine tuning with the charge.
    But frankly I'd be buying the condenser and coil as a package. It's often cheaper and more reliable that way
  42. Well my situation is a little different. I'm a...

    Well my situation is a little different. I'm a subcontractor for another company. So I purchase all of my own tools and equipment.
    Basically I purchase higher end stuff to save me time. It...
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    I can't get a flex line to pass on a water tank...

    I can't get a flex line to pass on a water tank up here.
    So I guess it depends on your location and local codes.
    Nowadays I'm only using flex on restaurant equipment that's on wheels. And...
  44. The reason I try to go electric is simply for...

    The reason I try to go electric is simply for carbon monoxide safety. Even a power vented unit with a new flue liner can backdraft co into the house.
    As far as cost to operate that would depend on...
  45. If it's a straight chimney, installing a liner is...

    If it's a straight chimney, installing a liner is really easy to do. Power vented unit's are ok as well.
    When I'm upgrading a house to a high efficiency furnace, especially and old non power...
  46. I looks as though those are mounted really close...

    I looks as though those are mounted really close to the wall.
    Make sure you at least 12 inches between the wall and condenser. It could be an airflow issue
  47. Ahh but humidity is relative to temperature. ...

    Ahh but humidity is relative to temperature.
    So in winter until it's bitterly cold the relative humidity is fairly high.
    But that same relative humidity at 70 degrees is very low.
  48. And that's why I'm stating it could be high...

    And that's why I'm stating it could be high humidity and lots of defrosting. Just because it's below freezing doesn't mean you don't have high humidity
  49. It could be high humidity outside and the unit...

    It could be high humidity outside and the unit keeps defrosting.
  50. Replies
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    Get rid of the nest. It's probably STARTING the...

    Get rid of the nest. It's probably STARTING the heat cycle on high.
    Get a proper 2 stage stat and program second stage according to your preference.
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