Search:

Type: Posts; User: cxagent

Page 1 of 20 1 2 3 4

Search: Search took 0.08 seconds.

  1. Replies
    13
    Views
    732

    beenthere - Windings to ground showed open on all...

    beenthere - Windings to ground showed open on all three wires.

    PCP - I plan to repair the module and reinstall it. It will be a little over a month before I can get to it.
  2. Replies
    13
    Views
    732

    Here is a quick update. 1) Wife called griping...

    Here is a quick update.
    1) Wife called griping about heat not working.
    2) Drop everything to get parts. I'm still thinking it is just the module but the resistance readings both me.
    3) At the...
  3. Replies
    13
    Views
    732

    Short the meter leads together and I get 0.1 ohms...

    Short the meter leads together and I get 0.1 ohms steady.

    Blower wheel and motor mounts are good.
  4. Replies
    13
    Views
    732

    Core_d The motor and magnets generating a...

    Core_d The motor and magnets generating a voltage was what I thought was happening.
  5. Replies
    37
    Views
    1,556

    Beenthere has your answer. In my experience...

    Beenthere has your answer.

    In my experience if a system will hold a 200+psi pressure test but shows a leak under vacuum you have one of two problems. 1) moisture left in the system to remove...
  6. Replies
    15
    Views
    842

    I would guess that the connecting rod failed...

    I would guess that the connecting rod failed first. The piston and everything else was damaged after the rod broke.

    As far as liquid causing the rod to break - maybe. I have seen a lot of...
  7. Replies
    13
    Views
    732

    ECM Motor Question

    I need some opinions here. MY furnace blower quit tonight. Carrier model 58CVA110 Shows a blower fault. Sure enough the blower rocks but never turns. I pulled the blower out expecting it to be a...
  8. Replies
    15
    Views
    3,490

    We used to do that. But someone knocked a 'dummy...

    We used to do that. But someone knocked a 'dummy t/stat' off the wall once and found there were no wires connected to it. So we started hooking wires to them and run the wires to above the ceiling....
  9. This sounds like an intermittent open on the...

    This sounds like an intermittent open on the limit circuit. I would suggest jumpering around the limit circuit but it sounds like you already have. So I would look VERY closely at the connector...
  10. So which brand do you buy - Chevy or Ford? At...

    So which brand do you buy - Chevy or Ford? At least those are built and testing in a factory before they are sent to the customer. A split system is assembled and run for the first time at your...
  11. Replies
    19
    Views
    1,250

    This used to be what most techs thought. But...

    This used to be what most techs thought. But since the residential code started requiring duct leak test in 2009 - you need a way to test or you have to hire a 3rd party to do the tests. Most...
  12. I haven't been back on here in a while and I just...

    I haven't been back on here in a while and I just say the responses since my last post. We think we have this one solved. I won't go thru all we did, but it was a mess. As said above the RTU was...
  13. Thanks for the info. I just downloaded some...

    Thanks for the info.

    I just downloaded some data logs on three of the RTUs. The OA damper never closes. The blowers never turn off. On two of the units one compressor is running continuously...
  14. Replies
    18
    Views
    3,490

    I have seen things like this. Usually it is due...

    I have seen things like this. Usually it is due to a failed duct leak test. The installer is sure his ducts aren't leaking so he seals everything else up to "prove" his ducts weren't the leak. ...
  15. Model YHD150F3RLB0E0F Serial 143011092D And...

    Model YHD150F3RLB0E0F Serial 143011092D And there are 4 more RTU of different sizes.

    It is a newer RTRM board with the CTI built in. It has a conventional 2-stage programmable thermostat hooked...
  16. Replies
    17
    Views
    1,146

    You must be as old or older than I am.

    You must be as old or older than I am.
  17. I found the Reliatel Control book. Page 46 and...

    I found the Reliatel Control book. Page 46 and 47 seem to confirm what I was seeing / thinking about the conventional t/stat control.
  18. Trane Voyager Controls with conventional T/stat Question

    I need some help understanding what the Trane Voyager controls do when a conventional thermostat is used to control the unit.

    I have looked up the Trane "black book" and read thru it. My...
  19. Replies
    10
    Views
    1,205

    Thanks for the link @jayguy. That is just what I...

    Thanks for the link @jayguy. That is just what I was looking for.
  20. Replies
    12
    Views
    1,495

    I just saw this because I'm looking for something...

    I just saw this because I'm looking for something similar but 20 tons. For humid areas like Austin make absolutely sure you use enthalpy control. Dry bulb control will make the space extremely...
  21. Replies
    9
    Views
    2,466

    I saw the 550 advertised for what I thought was a...

    I saw the 550 advertised for what I thought was a great price and ordered it. I looked on line and there was a 4 valve manifold but it didn't offer some of the features I wanted (like blue tooth...
  22. Thread: Hose gaskets

    by cxagent
    Replies
    32
    Views
    10,742

    I used to replace the gaskets when they leaked or...

    I used to replace the gaskets when they leaked or looked like they might leak. Then I was working on a roof when it rained on me while I was charging a unit (about 1978 or so). I saw all kinds of...
  23. Replies
    28
    Views
    3,434

    You didn't post enough info to say for certain...

    You didn't post enough info to say for certain but I bet the root problem still exists. If I were to take a wild guess I would say that the super heat on that system was about zero and you were...
  24. Thanks Rundawg! Yes that exactly what I had...

    Thanks Rundawg! Yes that exactly what I had found and was coming back to post. I had not found that Sustainable Coils might be able to help me. I had resigned myself to starting early one morning...
  25. Replies
    8
    Views
    1,213

    I usually agree with PHM - but not this time. A...

    I usually agree with PHM - but not this time. A piston compressor will rarely equalize thru the compressor because the reed valves prevent reverse flow. If the system can't equalize thru the...
  26. Replies
    145
    Views
    19,049

    I have replaced 1 X13 motor this year (only one I...

    I have replaced 1 X13 motor this year (only one I have installed in the past several years) and 2 ECM motors. Two of the three replacements were right after a thunderstorm so I suspect electrical...
  27. Need info on the manufacturer of an evaporator coil

    I found a leaking coil on a Rheem system (furnace & condenser). The nameplate was barely readable but clearly was not a Rheem coil. Can someone identify the manufacturer?

    Coil model number...
  28. Replies
    6
    Views
    690

    Posted resolution in Pro Forum.

    Posted resolution in Pro Forum.
  29. Replies
    6
    Views
    690

    DCs601C71 Manuals at...

    DCs601C71 Manuals at http://www.daikinac.com/content/commercial/accessories-and-controllers/intelligent-touch-controller-dcs601c71/ There is no 'other' front end.

    I have been digging thru those...
  30. I read about those in the old Doolin...

    I read about those in the old Doolin Troubleshooting Bible (mine was about a 1970's version). I had never actually seen one though. I recently (2005) ran across a could of them on a museum. They...
  31. I thought most of the very old refrigeration rack...

    I thought most of the very old refrigeration rack systems were a kind of VRF system. Those that ran a compressor to charge a liquid receiver and then cycled off the compressor. Then the...
  32. Replies
    6
    Views
    690

    I checked the Advanced menu but wasn't able to...

    I checked the Advanced menu but wasn't able to change it there. You may have hit on the problem. Is there something I need to do to make the factory default inactive?
  33. Replies
    6
    Views
    690

    iTouch Programming Question

    I have what should be a simple problem that I can't find an answer. On a Daikin iTouch system I need to raise the heating set point to 70. Currently it is limited to 68 by the controller. I can't...
  34. Replies
    48
    Views
    19,089

    Do you have similar pictures on flex duct systems?

    Do you have similar pictures on flex duct systems?
  35. Replies
    15
    Views
    5,075

    This installation is on a museum so down time is...

    This installation is on a museum so down time is critical. Add that budgets are non-existent at the moment. I don't think vibe analysis is going to show much without a baseline. Oil sample might...
  36. Replies
    15
    Views
    5,075

    Oil Migration problem on Carrier 23XL Chiiler

    I did a search before posting this but didn't find anything -

    We have a 225 ton Carrier 23XL chiller. It was installed new about 1996 when it replaced one of two 175 ton Carrier 19DG chillers. ...
  37. Replies
    10
    Views
    1,802

    I would bet that most of these were shown on the...

    I would bet that most of these were shown on the drawings and the person in charge rejected the change order. So they built what was on the drawings.
  38. Replies
    16
    Views
    2,039

    EXACTLY like the Cornwell. I bet they were the...

    EXACTLY like the Cornwell. I bet they were the company that made them for Craftsman.
  39. Replies
    16
    Views
    2,039

    I was looking for the box that held about 7 or 8...

    I was looking for the box that held about 7 or 8 sockets - nothing else. The entire set in the box was about 4" long x 3/4" wide x 1" tall. I'm guessing on the dimension since I don't have the set...
  40. Replies
    16
    Views
    2,039

    That's what I was hoping for! Somebody knew...

    That's what I was hoping for! Somebody knew where I could find replacements. I'll hit the NAPA store tomorrow.

    My truck was sitting in my driveway at my house. My driveway is a good way from...
  41. Replies
    16
    Views
    2,039

    Stolen tool pouch

    My tool pouch/belt was stolen out of my truck a few nights ago. I have had the pouch since I was in high school in the 1970's. I have tried to replace it a few times but always went back to the old...
  42. Replies
    4
    Views
    780

    Change Summit to not report that error until it...

    Change Summit to not report that error until it has existed for 5 minutes. That doesn't fix the problem, but at least you don't have to look at it so often.
  43. Replies
    36
    Views
    4,871

    Two words, two words I say Freeze stat...

    Two words, two words I say




    Freeze stat ;)
  44. Replies
    12
    Views
    1,249

    If you want to do it the hard way - the ARI web...

    If you want to do it the hard way - the ARI web site has some equations in one of the online publications that are used to predict performance at different conditions.

    If you want a somewhat...
  45. Replies
    7
    Views
    1,362

    This is an age old argument with good points on...

    This is an age old argument with good points on both sides. I agree with the comment about filters are needed at the unit even with filters in the return grill. One good point about return grill...
  46. Replies
    13
    Views
    1,625

    You forgot one of the most important parts. The...

    You forgot one of the most important parts. The owner hired an architect - probably based on the qualifications of that architect. Then the architect hired the engineer. Probably based on the...
  47. Replies
    24
    Views
    164,082

    RS Means has some 'rule of thumb' for sq ft per...

    RS Means has some 'rule of thumb' for sq ft per ton. But since they don't say what climate they apply to I think they are a way to get yourself in trouble. Just how many bowling alleys in Alaska...
  48. Replies
    14
    Views
    2,082

    Pneuma is right about the depth of the trap. If...

    Pneuma is right about the depth of the trap. If you increase the diameter and the problem gets better, the trap isn't working right anyway. Only depth will make the trap work right with water. ...
  49. Replies
    14
    Views
    2,082

    Turn the blower off before you prime the trap. ...

    Turn the blower off before you prime the trap. Otherwise the "prime" goes into the unit as fast as you pour it. It never develops the trap seal.

    If you are still having trouble, measure the...
  50. Replies
    10
    Views
    3,237

    You are right - this may turn into a complete...

    You are right - this may turn into a complete redesign and replacement of lots of equipment. But until the decision makers decide that, they want problems identified and corrected.
Results 1 to 50 of 1000
Page 1 of 20 1 2 3 4

Related Forums

Plumbing Talks | Contractor MagazineThe place where Electrical professionals meet.
Comfortech 365