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  1. Replies
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    The 1/4 inch size on mine gives me problems...

    The 1/4 inch size on mine gives me problems staying clamped in sometimes ( the red handle model that pre dates this never had this problem ). Other than that it works well for me.
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    Or that the room is now able to have a complete "...

    Or that the room is now able to have a complete " Air Change " that by adding the active return is now able to occur .
  3. Replies
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    Central supply with returns in each room , lol. ...

    Central supply with returns in each room , lol.

    I helped a friend change out a system in his house this year. The ducting is old and supply outlets are on the interior and the returns are on the...
  4. Replies
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    The fact that multiple rooms are served by 1...

    The fact that multiple rooms are served by 1 controller ( and 1 heating or cooling cycle ) I would say that a multiple return system has the best chance of achieving a more even level of comfort...
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    I guess I would make sure that the BC port...

    I guess I would make sure that the BC port address dial is set to the correct number on that indoor unit. I would then do an auto search of the system and see if the unit address comes up and note...
  6. Thread: York RTU Issue

    by tech45
    Replies
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    2,217

    I am in agreement with the late 1990's equipment...

    I am in agreement with the late 1990's equipment and yes every manufacturer has some dirty stuff out there. I have a project with 30 Simplicity RTU's less than a year old with the same old problems...
  7. Thread: York RTU Issue

    by tech45
    Replies
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    2,217

    I just don't see that happening across other...

    I just don't see that happening across other brands though. This has to be deliberate and calculated for some reason that benefits someone. A piece of DIN rail and a few idec relays is an upgrade...
  8. Thread: York RTU Issue

    by tech45
    Replies
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    2,217

    I never thought about it until now that there is...

    I never thought about it until now that there is a guy somewhere who designed the 1-A board. A boss who thinks he did a great job , probably drives a Benz , sleeps well at night , 12 weeks paid...
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    This could be weird if it started like this.

    This could be weird if it started like this.
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    It may be as easy as removing that 1. Weird that...

    It may be as easy as removing that 1. Weird that it ran though.
  11. Replies
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    1,371

    You can see from all of the " Not" blocks that...

    You can see from all of the " Not" blocks that someone was fighting their way through instead of looking at all of the options. I would re-write this using the feedback alarm if it were me. Here is...
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    edit .. that is weird.

    edit .. that is weird.
  13. Replies
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    Sorry I see that block is wired my mistake. And I...

    Sorry I see that block is wired my mistake. And I was mistaken about " OR " also.
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    Just some basic first glance stuff , 1)...

    Just some basic first glance stuff ,

    1) Increase the page size to the largest 11 x 17. This is done in file / program properties I believe.

    2) I have not done much with the De-enumerate block...
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    Maybe it is best to not start the PID UNTIL a...

    Maybe it is best to not start the PID UNTIL a measured variable is present for something like a fan or pump. I see this a lot too ( factory programs ) with a status input as the enable.
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    Thanks. I see this used often enough so I'm going...

    Thanks. I see this used often enough so I'm going to assume that the fail occurs somewhere towards the end of the program run time ( or enough time for a measured variable to be produced ) ? I am...
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    Could someone explain the " Fail " connection on...

    Could someone explain the " Fail " connection on the PID block please ? I often see a " fail block " connected here and wired to the measured variable. Is this checking for an analog value of " 0 " ?
  18. Replies
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    From what you described it sounds like the...

    From what you described it sounds like the problem is with the economizer controller or associated sensors . Outside air versus mechanical cool is a function of the econ. controller.
  19. Thread: Daikin VRVIII

    by tech45
    Replies
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    597

    A solid H3P is saying that the D3 Network is...

    A solid H3P is saying that the D3 Network is ready with no communication errors.

    E5 is BAD man , I have only seen it once and I ended up having to change the inverter compressor. There are...
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    I used to turn the canvas to metal seams up 90...

    I used to turn the canvas to metal seams up 90 degrees. Makes for an easier connection and looks more defined.
  21. Thread: Aaon unit

    by tech45
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    1,501

    This sounds correct. MUA macro , economizer = no...

    This sounds correct. MUA macro , economizer = no , and some neutral temp. somewhere around 70. The newer System Managers seem to operate a little different lately than they used to. After entering a...
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    Just a f.y.i. I have been using JB oil in mine...

    Just a f.y.i. I have been using JB oil in mine for a couple of years now. I'm sure that the Appion oil is better I am just not organized enough to remember to order it. I use the Appion evacuation...
  23. Replies
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    I used the " trial and error " method ( 7/8 and...

    I used the " trial and error " method ( 7/8 and smaller ) when I worked with soft copper with lever style and when the REMS ratchet bender came out. I had made my own chart for different combinations...
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    I'm imagining that as the last branch valve...

    I'm imagining that as the last branch valve closes the pump is still moving fast enough to cause a drop in pressure in the main ( or wherever the prv is connected ). As far as " the point of no...
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    It seems to be an engineering trend lately for...

    It seems to be an engineering trend lately for variable speed pumping with two way valves only ( no bypass ). It works great until a pressure transmitter fails on a Friday evening when no one is...
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    I was wondering if connecting the make up line...

    I was wondering if connecting the make up line into the expansion tank piping might make a difference ( if it isn't already ) ? My thought being that if the tank line is truly the " point of no...
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    I was hoping to see a reply on this as well ,...

    I was hoping to see a reply on this as well , interesting topic I don't ever remember seeing before.

    I guess any coils or vessels with water should be drained , electrical service removed or...
  28. I'm just repeating what I've heard , OSHA or...

    I'm just repeating what I've heard , OSHA or insurance companies ? Either way I have not seen a " new " one in a long time. And I believe that the one I used had a brand name ( or model ) of "...
  29. These things were cool but outlawed many years...

    These things were cool but outlawed many years ago. I've always known them as " Superman Lifts ". The first time using one was kind of tense , but never any problems after that.
  30. Replies
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    You might want to post this in the controls forum...

    You might want to post this in the controls forum later if you don't get an answer here after awhile. Make sure to mention " Carrier 3V " I believe is the proper name for this.

    I can't stand those...
  31. Replies
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    Regarding frequency , 20 hz for pumps is the...

    Regarding frequency , 20 hz for pumps is the minimum speed mentioned by both ABB and Bell and Gossett. Just mentioning for conversation , I wonder if there really is a considerable difference of...
  32. Thread: daikin VRVIII

    by tech45
    Replies
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    893

    I know that you mentioned the field settings (...

    I know that you mentioned the field settings ( wall control ) but is it possible that the fan is cycling on a call for cooling / heating ? There is a field setting to run the fan continuous during...
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    Here is one that will work. ...

    Here is one that will work.

    http://bellgossett.com/selection-sizing-cad-tools/system-syzer/end-user-license-agreement/
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    I vote to stick with the original , Turbo. I also...

    I vote to stick with the original , Turbo. I also like that new roller tote they hay have for the B tank rig. A coworker had one on the job recently and I was giving him a hard time about it until we...
  35. Thread: Name that Tune

    by tech45
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    Men At Work... I hated anything top 40 back then...

    Men At Work... I hated anything top 40 back then but that song was an exception for me. Brilliant note selection and arranging.
  36. Replies
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    On a new clean system the oil will stay clear (...

    On a new clean system the oil will stay clear ( or it should as long as the manufacturer and install tech were clean with their work ). The only difference is that on the TEZ 8 you can identify this...
  37. Replies
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    The value comes in when you get on a system that...

    The value comes in when you get on a system that is wet or dirty. The fact that you can change the oil quickly or even identify the condition of the oil at a glance are features that are not offered...
  38. Thread: VRF

    by tech45
    Replies
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    10,550

    There is a new service pack for Tracer Summit...

    There is a new service pack for Tracer Summit released last week and ARCNET is no longer supported.
  39. Replies
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    Aaon can be tough to deal with at times unless...

    Aaon can be tough to deal with at times unless you are in tight with a good distributor. However , there are no " on the shelf " units from them and the blower drive is selected based on customer...
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    This is correct , and just to explain further , ...

    This is correct , and just to explain further ,

    when the fans are turned on and off, the liquid line pressure after the condenser coil ( or receiver ) fluctuates, which may cause the...
  41. Thread: VRF

    by tech45
    Replies
    86
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    10,550

    If that refnet question was serious , ... the...

    If that refnet question was serious , ... the answer is no. 40 inches from the outlet of the first to the inlet of the second. A little Mitsubishi humor in my last post , not sure where this thread...
  42. Thread: VRF

    by tech45
    Replies
    86
    Views
    10,550

    Replacing them with a BC Controller may be the...

    Replacing them with a BC Controller may be the best option.
  43. Thread: Hose gaskets

    by tech45
    Replies
    29
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    7,609

    I thought the same thing as I was trying every...

    I thought the same thing as I was trying every which way to get the dang thing into the socket. I grabbed the biggest allen wrench I could get in and was determined just to ruin the hose and toss it...
  44. Replies
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    So it seems that any statement made against it's...

    So it seems that any statement made against it's use as well.

    I've been installing a lot of foreign brands lately that don't allow filter driers and contain fairly expensive parts , so other...
  45. Replies
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    ... and then there is the flux , flowing by means...

    ... and then there is the flux , flowing by means of capillary action the same as the filler. I'm guessing that we all heat the joint as to promote a full socket filler material weather brazing or...
  46. Thread: AAON wattmaster

    by tech45
    Replies
    3
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    473

    Are you connecting with a service manager /...

    Are you connecting with a service manager / service tool or Prism ? Have you tried leaving the user interface unplugged for say a day and connecting again ?
  47. Thread: AAON wattmaster

    by tech45
    Replies
    3
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    473

    This sounds like a firmware or EPROM issue....

    This sounds like a firmware or EPROM issue. http://www.orioncontrols.com/a/contacts/
  48. Thread: VRF

    by tech45
    Replies
    86
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    10,550

    I think Daikin bought Goodman so you might want...

    I think Daikin bought Goodman so you might want to check that you have a minimum of 40 inches between refnets.
  49. Thread: Hose gaskets

    by tech45
    Replies
    29
    Views
    7,609

    I use the biggest allen wrench that will fit in...

    I use the biggest allen wrench that will fit in the hose end ( 5 /16 I think ) and it seats the new ones every time. But yeah I was frustrated by the time I tried that for sure , they are impossible...
  50. Replies
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    That is usually what I find as no one notices the...

    That is usually what I find as no one notices the 14 gauge control wiring throughout the unit ( factory ). And a hero comes along with his 2 conductor brown residential wire and breaks the entire...
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