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Type: Posts; User: jdere

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  1. Replies
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    918

    That looks like a home developer special around...

    That looks like a home developer special around greater Boston area.
    Developer or GC probably told installer what acceptable duct size to use.
    Then they send in finished carpenter to finish up the...
  2. Hate to be a bother, but does anyone have a...

    Hate to be a bother, but does anyone
    have a diagram of a typical installation?
    Thank you for any help
  3. Thread: seriously

    by jdere
    Replies
    28
    Views
    2,151

    Way too much risk to recover refrigerant, cut...

    Way too much risk to recover refrigerant, cut coil out, clean it, install it and place gas back in. Depending on the age of equipment, customer is going to blame you for everything thing that is...
  4. Replies
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    3,329

    I am probably getting 27' at 22 gpm through the...

    I am probably getting 27' at 22 gpm through the ground loop.
    There are two flow meters in the supply pipes that go to each heat pump. The highest reading when both heat pumps are working is 8.5 gpm ...
  5. Replies
    12
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    3,329

    So that being said, the two Wilo pump model #...

    So that being said, the two Wilo pump model # 1.25 X 3.30 seem to be able to handle the head and the GPM for this system.
    The pumps are set up in a push/pull arrangement.
  6. Replies
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    3,329

    Earth Ace, I think my biggest issue is being...

    Earth Ace,
    I think my biggest issue is being able to read and know the correct pressure drop through out the system.
    I do a lot of radiant heat and boiler systems. Basically this Geo system is a...
  7. Replies
    12
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    3,329

    The designer told me that the circuit was 1-...

    The designer told me that the circuit was 1- 1/4". Don't know how the circuit was actually set up outside.
    Correct the hydron unit is about that 4 to 6.5 depending on the stage. I thought the chart...
  8. Replies
    12
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    3,329

    The loops are vertical. I was not there for the...

    The loops are vertical. I was not there for the outside installation work, but The installer of the vertical loops, a major drilling company, is reputable company.
    There are fittings, pete's plug to...
  9. Replies
    12
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    3,329

    564121

    564121
  10. Replies
    12
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    3,329

    head loss math through field loops

    Hi
    I wanted to check in about this:
    There is a home with a geothermal system with 3- 500 ft loops in the side yard. Pipe is 1.25" polpy pipe.
    I wanted to make sure the circulator pumps are not...
  11. Thread: Ecovent

    by jdere
    Replies
    5
    Views
    855

    I am thinking the same thing Bigtime. I am...

    I am thinking the same thing Bigtime. I am wandering if they consulted with anyone in the trenches. The rich are getting richer!
  12. Thread: Ecovent

    by jdere
    Replies
    5
    Views
    855

    If you read the Boston Globe article it reminds...

    If you read the Boston Globe article it reminds me of just a bunch of people trying to capitalize (cash in) on the "smart home" concept.
    If you check the comment section of article, I'm Jag 86...
  13. Thread: Ecovent

    by jdere
    Replies
    5
    Views
    855

    Ecovent

    What do you guys and gals thinks about this:

    https://www.ecoventsystems.com/how-it-works/

    Also this:
    ...
  14. Replies
    14
    Views
    1,749

    If there are problems with this unit, there is a...

    If there are problems with this unit, there is a lot room in the attic for an HVAC Co. to repair the air handler with a correctly sized trunk in the future. Right now it seems fine for heat. It's not...
  15. Replies
    14
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    1,749

    That's correct regles! I turned fan on at the...

    That's correct regles! I turned fan on at the thermostat and the registers were high on the ceiling (about 10') and I think the air speed was probably about 400 to 600 fpm. The return register was a...
  16. Replies
    14
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    1,749

    After looking at these spec houses, I will never...

    After looking at these spec houses, I will never buy one in the future.
    I would rather have some control in the whole process of building a house.
    I have the knowledge know, but not 15 years ago....
  17. Replies
    14
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    1,749

    I believe there was bubble wrap on the 20" X 16"...

    I believe there was bubble wrap on the 20" X 16" sheet metal
  18. Replies
    14
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    1,749

    I thought about the higher static. There was no...

    I thought about the higher static. There was no way the real estate agent was going to let me bring a drill and test TESP but I wish I could.
    Obviously the install looked like a hack job.
  19. Replies
    14
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    1,749

    kdean, contractor covered the top of air handler...

    kdean, contractor covered the top of air handler with let's say a 20" X 16" sheet metal plate. No plenum box. I didn't measure anything (no tape measure or any tools) and I wish I took a picture. I...
  20. Replies
    14
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    1,749

    Air handler with no supply trunk

    My friend was house hunting this Sunday at open houses.
    At a brand new house, I went up to the attic to check out the central air system.
    I was surprised to see no supply trunk on the air handler....
  21. Replies
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    792

    I always install an air switch (Cleveland type)...

    I always install an air switch (Cleveland type) between steam humidifier and controller so that way the humidifier will not
    turn on if the blower is not running.
  22. I meant to say that none of the second stage...

    I meant to say that none of the second stage terminal are connected (y2 or W2) at the thermostats, but the y2 and w2 terminals were connected at the rooftop unit.
    That's what I think has changed.
  23. I checked out equipment just as a thunderstorm...

    I checked out equipment just as a thunderstorm came rolling in. I didn't see ecomizer connections at control panel section.
    I did notice someone from my company replaced the thermostats
    And he...
  24. I can definitely set up controls to turn on all...

    I can definitely set up controls to turn on all units at once. Wanted more info on how to plumb the suction and discharge lines at the five ton units.
  25. True, better to install one 10 ton air handler...

    True, better to install one 10 ton air handler but space is very tight to get equipment into mechanical room.
  26. Replies
    2
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    658

    Alphato, I always design the ducts for cooling...

    Alphato, I always design the ducts for cooling because it's always harder to cooler than heat space. Also, I try to have oversize ducts whenever I can get the space for bigger ducts. Being say 20%...
  27. This is my first season with this equipment and I...

    This is my first season with this equipment and I don't really work on a lot of trane equipment. Seems like good equipment, though.
  28. Well the thing that changed was that the...

    Well the thing that changed was that the restaurant chain i work with bought the lease to this building and an existing equipment. So I don't know what the previous owners or the last HVAC Co. were...
  29. Ok thanks Bbeerme!

    Ok thanks Bbeerme!
  30. I will go back and look at how it was wired. It...

    I will go back and look at how it was wired. It does seem ridicously set high for a summer morning. The sensor is in a small vented sheetmetal box on the bottom left (close to the outside) of the...
  31. It can accept any thernostat

    It can accept any thernostat
  32. Ok buford, I'll try it the next time I'm out...

    Ok buford, I'll try it the next time I'm out there. Thanks.
    I am wandering how the sensor works. Is it a thermistor or a resistor sized for a certain temperature.
  33. No

    No
  34. Ok. When I put my hand on the sensor and warm it...

    Ok. When I put my hand on the sensor and warm it up, the rooftop kicks on the AC portion.
    There are two more units the same size and I have to do the same exact thing.
  35. Trane Ro0ftop YSC060A3RHA000, bypass outdoor temp sensor

    Can the outdoor temp sensor be bypassed or set temperature be lowered?
    This unit is at a restaurant where it's 70 degrees and humid outside, but 80 degrees inside
    and rooftop doesn't want to turn...
  36. Replies
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    14,303

    Thanks Rundawg. It wasn't sarcasm. Looking to...

    Thanks Rundawg. It wasn't sarcasm. Looking to download schematics in the future especially if it can be done on my phone.
    This forum is awesome for trading advice and learning.
    I taught a few guys...
  37. Replies
    145
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    14,303

    Still trying to figure out how to google model #...

    Still trying to figure out how to google model # and get schematics in 10 seconds.
  38. Replies
    145
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    14,303

    You said "Don't have the schematic with me. " If...

    You said "Don't have the schematic with me. " If I can copy and paste the model and Google has it in front of me in 10 seconds, it's a fair assumption you didn't bother looking and spent about as...
  39. Replies
    145
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    14,303

    And there is other items fried in the house...

    And there is other items fried in the house because comcast was there replacing their stuff.
    In the 150 degree attic, I quickly checked as many items as fast I could. I didn't say I was going to...
  40. Replies
    145
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    14,303

    Did I say the transformer was bad? What are...

    Did I say the transformer was bad?
    What are trying to say?
  41. Replies
    145
    Views
    14,303

    GE ECM Model# HD42AE232 Graindaire-WAHM304A...

    GE ECM Model# HD42AE232
    Graindaire-WAHM304A
    Don't have the schematic with me. Board might be still good. I know that the battery powered thermostat is definitely not working because I
    got 27...
  42. Replies
    145
    Views
    14,303

    I have a customer with a bad x13 motor and I'm on...

    I have a customer with a bad x13 motor and I'm on the fence about just replacing it or installing a PSC motor. There is a chance that the control board is gone too so that's why I thought a 24 volt...
  43. Replies
    145
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    14,303

    How easy is it to convert from X13 to PSC? I am...

    How easy is it to convert from X13 to PSC? I am thinking get the same size H.P., rpm, voltage, and a 24 volt contactor instead of using the control board on the fan coil?
    Especially for AC only...
  44. Is it possible? 10 ton condenser connected to two-5 ton air handlers

    I have a restaurant where they have a newer 10 ton condenser.
    The 10 ton fan coil is falling apart. I can get them two new 5 ton fan coils for a great price.
    This might be a dumb question, but is...
  45. Replies
    0
    Views
    430

    venstar T2900 indoor remote sensor

    Hello All
    I have 4- T2900 thermostats. All with the same problem, I cant get the indoor remote sensor to work with the thermostat. I wired a remote sensor to terminal R1 and R ground. I haven't...
  46. Replies
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    768

    Wanted: EWC boards

    Let me know if anyone has an extra or extra's they want to sell. Thanks Joe
  47. Replies
    1
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    797

    Here is the newest link....

    Here is the newest link.
    http://www.ebay.com/itm/231226642894

    Doesn't anyone have a restaurant project? I have installed in Tex-Mex type restaurant. Owners painted them same color as ceiling and...
  48. Replies
    3
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    864

    Thanks Gentlemen, I found the brass fitting in...

    Thanks Gentlemen,
    I found the brass fitting in another box.
    Thank you!
  49. Replies
    3
    Views
    864

    TXV valve fitting

    Hi Guys,
    I bought a new uncased 3 ton coil. I have on my shelf a new 3 ton TXV valve that fits on the coil end, no problem.
    I don't install many TXV valve's so I am having a problem trying to...
  50. Replies
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    3,314

    Ok very true. Thanks jtrammel.

    Ok very true. Thanks jtrammel.
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