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  1. Replies
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    Views
    257

    When I have situations in which I don't want to...

    When I have situations in which I don't want to fry the equipment, I just keep the low voltage wires going to the humidifier disconnected and instead connect voltmeter leads to the wires.
    You either...
  2. Replies
    15
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    774

    No Uke, The main power going into the unit is...

    No Uke,
    The main power going into the unit is either 208/230 or 120 volt.
    The 120 volt circuit takes at least twice as longer to make steam.
    Also the amount of steam per day/hour is reduced.
    I...
  3. Replies
    15
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    696

    Not saying you installed a furnace that was too...

    Not saying you installed a furnace that was too large but I had a similar issue in the past in which a contractor installed a new furnace that was similar BTU's as old furnace but too big for the...
  4. Replies
    15
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    774

    I have installed at least five Aprilaire 800 over...

    I have installed at least five Aprilaire 800 over the last 4 -5 years. For the most part they work well.
    The capsule needs to be replaced every season.
    Try to get electrician to wire for 208/230...
  5. Replies
    13
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    711

    The other posts are correct. Don't ever let...

    The other posts are correct. Don't ever let customer take over the HVAC design process without them signing a waiver
    because you will never hear the end of it.
    You mentioned the house being a...
  6. Replies
    36
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    1,215

    Yes, I believe it's an environmental violation...

    Yes,
    I believe it's an environmental violation to have open loop.
    The EPA doesn't even want a chance of contamination of the ground water.
    I know for a fact a building inspector actually needs to...
  7. Kchest, your right on. I'm from Mass and my in...

    Kchest, your right on.
    I'm from Mass and my in laws live in NC.
    Come on everyone. We are all Americans.
    Just watch some WW2 movies when northerners and southerners are thrown in together.
    We all...
  8. POLYSONICS Model DHT-P Hydra Ultrasonic Flowmeter

    I'm thinking of buying a ultrasonic flow meter.
    The older model's can be had for less than $100 on ebay.
    Newer one's start at $400.00
    Anyone have experience using these flow meters? Any input?
  9. Replies
    7
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    600

    thanks rundawg and everyone else who commented!

    thanks rundawg and everyone else who commented!
  10. Replies
    7
    Views
    600

    I went by the job. Indoor unit is a Carrier...

    I went by the job. Indoor unit is a Carrier FY4ANFo24000AAAA
    The electric heat is being activated even with the thermostat in off position. Electric heater # KFCEHo80
    Isolated all the thermostat...
  11. Replies
    7
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    600

    Heat pump staying on

    I have a tech friend that lives an hour away from me. I'm trying to help him without going there this weekend.
    He is working on a Carrier heat pump about 5 years old.
    Customer is complaining that...
  12. I talked to a retired plumber who owned a...

    I talked to a retired plumber who owned a plumbing company about communicating with his employee's during the 50's and 60's this past summer. This really is an interesting dilemma if you stop and...
  13. Replies
    12
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    1,293

    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...
  14. 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
  15. Thread: seriously

    by jdere
    Replies
    28
    Views
    2,772

    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...
  16. Replies
    12
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    4,635

    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 ...
  17. Replies
    12
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    4,635

    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.
  18. Replies
    12
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    4,635

    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...
  19. Replies
    12
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    4,635

    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...
  20. Replies
    12
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    4,635

    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...
  21. Replies
    12
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    4,635

    564121

    564121
  22. Replies
    12
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    4,635

    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...
  23. Thread: Ecovent

    by jdere
    Replies
    5
    Views
    1,070

    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!
  24. Thread: Ecovent

    by jdere
    Replies
    5
    Views
    1,070

    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...
  25. Thread: Ecovent

    by jdere
    Replies
    5
    Views
    1,070

    Ecovent

    What do you guys and gals thinks about this:

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

    Also this:
    ...
  26. Replies
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    2,262

    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...
  27. Replies
    14
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    2,262

    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...
  28. Replies
    14
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    2,262

    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....
  29. Replies
    14
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    2,262

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

    I believe there was bubble wrap on the 20" X 16" sheet metal
  30. Replies
    14
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    2,262

    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.
  31. Replies
    14
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    2,262

    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...
  32. Replies
    14
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    2,262

    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....
  33. Replies
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    993

    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.
  34. 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.
  35. 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...
  36. 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.
  37. 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.
  38. Replies
    2
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    819

    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%...
  39. 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.
  40. 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...
  41. Ok thanks Bbeerme!

    Ok thanks Bbeerme!
  42. 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...
  43. It can accept any thernostat

    It can accept any thernostat
  44. 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.
  45. No

    No
  46. 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.
  47. 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...
  48. Replies
    145
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    19,052

    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...
  49. Replies
    145
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    19,052

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

    Still trying to figure out how to google model # and get schematics in 10 seconds.
  50. Replies
    145
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    19,052

    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...
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