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  1. Replies
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    1,335

    I think you are confusing something. Hot water...

    I think you are confusing something. Hot water for the radiant system and domestic hot water. Domestic hot water (Desuperheater) is piped to a water heater for the home, ideally there should be two...
  2. Replies
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    21,015

    Past results can be an indicator of future...

    Past results can be an indicator of future performance...

    The best way to know if Geo is "worth it" in San Antonio is to have local experienced Geo contractors bid the project.
    They should be...
  3. Replies
    2
    Views
    2,214

    What was wired wrong?

    What was wired wrong?
  4. Replies
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    8,377

    So what.... you don't know much about Geo. You...

    So what.... you don't know much about Geo. You are in a class to learn. There are no stupid questions, only stupid answers. If you don't know what the instructor is discussing ask them to explain.
  5. Our company has several hundred installs to date....

    Our company has several hundred installs to date. All without an expansion tank and ZERO problems because of it. The HDPE pipe is, in effect, the expansion tank. Our loop pressures swing about 20 to...
  6. Replies
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    5,750

    If it's been four of the same repairs, you may...

    If it's been four of the same repairs, you may want to check into the "Lemon Laws" in your area.
  7. Replies
    34
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    5,917

    Heard this at a Geo Conference today... One...

    Heard this at a Geo Conference today...

    One way or another you're going to pay for a geo system. Why not have it installed in your home?:whistle:

    Bergy
  8. Replies
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    2,178

    What is the Heat of Rejection/Extraction? Are you...

    What is the Heat of Rejection/Extraction? Are you checking pressures w/o first calculating HR/HE?

    Bergy
  9. Replies
    4
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    2,304

    Older Waterfurnace models DO NOT have standard...

    Older Waterfurnace models DO NOT have standard core valves. (EO models that I know of)
    They require a special tool to remove and replace. If you look at the fitting you will see a hex at the base....
  10. Replies
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    5,159

    Did they confirm the methanol mix% of the old...

    Did they confirm the methanol mix% of the old water?

    Bergy
  11. Replies
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    8,377

    Martincf, Part of the problem is you did not...

    Martincf,

    Part of the problem is you did not purchase the unit from Water Furnace. The purchase was from the contractor, making the contractor your contact. Water Furnace will always refer you...
  12. Replies
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    2,302

    Remember, the Manufacturer REQUIRES an up-sized...

    Remember, the Manufacturer REQUIRES an up-sized loop field for the Water to Water units. Were the vertical bores COMPLETELY grouted? Is the first floor hydronic pipes in a over-pour or is it under...
  13. Replies
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    2,302

    Can you post some pics of the install? Piping...

    Can you post some pics of the install? Piping layout pics would be nice.

    Bergy
  14. Replies
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    1,113

    Where in Iowa are you? We are located in Cedar...

    Where in Iowa are you? We are located in Cedar Rapids.

    Bergy
  15. Why is that Waterfurnace's fault? The contractor...

    Why is that Waterfurnace's fault? The contractor saved some money for HIM and bought down the warranty. A contractor that would do that without explaining it to you makes me wonder what other corners...
  16. Replies
    6
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    1,056

    If you have a non-pressurized loop there is a...

    If you have a non-pressurized loop there is a "Flow Gauge" that's inserted in the water stream and will visually show the GPM. GPM is derived from the pressure drop through the heat pump according to...
  17. Replies
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    1,056

    These numbers can't be correct. According to page...

    These numbers can't be correct. According to page 16 of the Engineering Design Guide ( http://www.comfort-aire.com/downloads/category/74/geomax-2-two-stage-geothermal ) 5.2 PSI drop through the...
  18. Replies
    8
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    1,502

    If you replace the unit make sure there is a 10...

    If you replace the unit make sure there is a 10 year Parts and Labor warranty. Also, find out if your contractor accepts the labor rates offered by the mfgr. Some will charge you extra for labor if...
  19. Replies
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    6,332

    Are you sure those numbers are correct? If so you...

    Are you sure those numbers are correct? If so you are in the cooling mode. Also, when taking the measurements make sure the unit is in second stage without the desuperheater engaged.

    Bergy
  20. Replies
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    6,332

    You need to start with the basics and get...

    You need to start with the basics and get documentation. A Heat of Extraction(HE) and Heat of Rejection(HR) needs to be performed. With a SINGLE pressure gauge and thermometer the unit needs to run...
  21. The 8000 or Prestege stats are much better. They...

    The 8000 or Prestege stats are much better. They have geothermal logic built into them, meaning they take into account geo's slow heat. They will help keep the aux heat from running as much.

    Bergy
  22. Replies
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    3,044

    I believe they were bought by Enertech Mfg.

    I believe they were bought by Enertech Mfg.
  23. Replies
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    8,955

    All SHOULD be good????? SHOULD BE??? Did the tech...

    All SHOULD be good????? SHOULD BE??? Did the tech not verify system performance by measuring the heat of extraction/rejection? That test is a MUST do.

    Bergy
  24. Replies
    6
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    2,397

    Here's what you need from the tech... Water...

    Here's what you need from the tech...

    Water Side
    Pressure In Pressure Out Delta P
    Temperature In Temperature Out Delta T

    Air Side
    Temperature In Temperature Out

    As an...
  25. Replies
    6
    Views
    2,397

    Have the tech's performed a Heat of...

    Have the tech's performed a Heat of Extraction/Rejection on the unit? A HE/HR is the first thing a service tech needs to do. It confirms the system's ability to reject heat into the ground or extract...
  26. Replies
    3
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    2,473

    What is the flow rate through the loop? What is...

    What is the flow rate through the loop? What is the Heat of Rejection? Why are you putting a gauge set on the unit BEFORE performing the HR/HE calculations?

    Bergy
  27. Replies
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    7,889

    Not on the coast, livin' in the heartland of...

    Not on the coast, livin' in the heartland of Iowa.

    Bergy
  28. Replies
    21
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    7,889

    The biggest difference in the units is the air...

    The biggest difference in the units is the air coil. Water Furnace uses an E-coated coil that has, industry wide, issues with formicary corrosion. (Pitting of the copper causing refrigerant leaks to...
  29. Replies
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    2,048

    Leave your gauge set in the truck. Always do a...

    Leave your gauge set in the truck. Always do a Heat of Extraction/Rejection first. If those numbers indicate a problem then, and only then, hook up the gauge set.

    Bergy
  30. What's the flow rate on the LOAD side? You need...

    What's the flow rate on the LOAD side? You need to know if the load side is absorbing the proper amount of Btu's.

    Bergy
  31. Replies
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    1,892

    You need a qualified service tech. Messing with...

    You need a qualified service tech. Messing with high voltage can be deadly!
  32. Replies
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    3,653

    It is not a refund, it's a tax credit. You must...

    It is not a refund, it's a tax credit. You must have a tax liability in order to get the 30% credit.

    Bergy
  33. Replies
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    4,784

    Loopers ARE in a partnership with HVAC...

    Loopers ARE in a partnership with HVAC contractors. We do all the design work with our computer programs but that cannot tell us what is actually out at the job site. Our loopers know the geology of...
  34. Two systems on a single loop should have their...

    Two systems on a single loop should have their own pumps. They should be piped as shown, this will insure proper flow through the units without short cucling between them.

    Bergy303341
  35. Make sure a 4 ton unit isn't oversized for your...

    Make sure a 4 ton unit isn't oversized for your cooling loads. If you wind up with too much cooling you may find your home feels like a cave.

    Bergy
  36. Replies
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    2,148

    www.Geo-flow.com Look for their Geo-Gooser ...

    www.Geo-flow.com Look for their Geo-Gooser

    Bergy
  37. Replies
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    4,836

    Called my Geo guy who is kind of a "under the...

    Called my Geo guy who is kind of a "under the table" operator

    Perhaps it's time to call in an "above the table" operator.

    Bergy
  38. Replies
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    10,172

    Enertech manufactures Hydron Module, GeoComfort...

    Enertech manufactures Hydron Module, GeoComfort and Tetco heat pumps. Paradise was a short lived WF private lable for Enertech.

    Bergy
  39. Replies
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    2,998

    All of the better Honeywell stats carry a five...

    All of the better Honeywell stats carry a five year warranty.

    Bergy
  40. Replies
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    4,115

    We have been with Enertech for eleven years now....

    We have been with Enertech for eleven years now. First they were a Climate Master rep but switched to Water Furnace and had them manufacture a GeoComfort brand for them. Enertech was not satisfied...
  41. Replies
    15
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    4,124

    Be careful with unsupported claims... I have been...

    Be careful with unsupported claims... I have been involved with WaterFurnace and Enertech, makers of Hydron Module, GeoComfort and Tetco. The service we get from Enertech is second to none! Can I...
  42. Replies
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    2,939

    The 3/8 inch is NOT your bottleneck... The eight...

    The 3/8 inch is NOT your bottleneck... The eight 1/8 inch lines are!!

    Bergy
  43. Replies
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    2,939

    That coil will not work. It is designed for...

    That coil will not work. It is designed for refrigerant, not water. You will have to find a water coil for your experiment.

    Bergy
  44. Replies
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    3,648

    While we are a GeoComfort/Hydron Module dealer...

    While we are a GeoComfort/Hydron Module dealer and a BIT biased.... Your decision should come down to who the best contractor is.

    Bergy
  45. Replies
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    3,609

    You DO NOT attach a gauge set to a Geo unless the...

    You DO NOT attach a gauge set to a Geo unless the heat of rejection/extraction indicates it should be done.

    Bergy
  46. Replies
    5
    Views
    2,682

    A Professional's list...

    At start-up your contractor should have recorded the following...

    Second stage cooling, or heating, with Desuperheater turned OFF.

    Loop Side... Pressure In minus Pressure Out = Delta P
    ...
  47. Replies
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    4,017

    It sounds like a control board. Bergy

    It sounds like a control board.

    Bergy
  48. Thread: Me again

    by Bergy
    Replies
    8
    Views
    2,139

    Go back to the GeoComfort unit. Whatever you...

    Go back to the GeoComfort unit. Whatever you decide make sure the unit is energy star rated to qualify for the 30% tax credit.

    Bergy
  49. Replies
    8
    Views
    4,095

    High Voltage

    Have you tried turning off, and back on, the heat pumps breaker?

    Bergy
  50. Thread: Low water temp

    by Bergy
    Replies
    9
    Views
    2,075

    What type of antifreeze do you have in your loop?...

    What type of antifreeze do you have in your loop? If it's Glycol, make sure it is mixed to a 25% level. I'm not sure what levels are needed for Methanol.

    Bergy
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