Search:

Type: Posts; User: teddy bear

Page 1 of 20 1 2 3 4

Search: Search took 0.14 seconds.

  1. Great to here that you are building a quality...

    Great to here that you are building a quality home and considering making it have high indoor air quality and comfort with fresh filtered air and real humidity control to purge indoor pollutants and...
  2. Replies
    3
    Views
    141

    Trust me, some day you wish you had a simple...

    Trust me, some day you wish you had a simple single speed system. They grow old much more gracefully than the more complicated systems.
    If you want the ultimate in comfort and indoor air quality,...
  3. Struggled because not setup well or...

    Struggled because not setup well or malfunctioning. If working well and struggling, up size .5 ton.
    Fresh air is recommended. Recommend Ultra-Aire 98h or best efficiency in the world use the...
  4. Replies
    12
    Views
    256

    Most homes in green grass climates are on the...

    Most homes in green grass climates are on the edge of growing mold. 50% of the occupants are not sensitive to this level of mold. <10% of the occupants may have a serious response to these low...
  5. Thanks for the recognition. This a typical...

    Thanks for the recognition.

    This a typical situation for a green grass climate for your type of home.
    The first thing is a best sized a/c for temperature comfort in your home at two levels.
    ...
  6. Replies
    29
    Views
    599

    OK Keeep us posted. Regards Teddy Bear

    OK
    Keeep us posted.
    Regards Teddy Bear
  7. Replies
    81
    Views
    1,481

    An important point is that dew point of the air...

    An important point is that dew point of the air leaving coil is dependent on the cooling coil temperature. With modern large coils that are used by mid to high SEER coils, the dew point is 4-5^F...
  8. Replies
    29
    Views
    599

    Yes to all. Looking forward to see how this...

    Yes to all.

    Looking forward to see how this all works. Keep us posted.

    Regards Teddy Bear
  9. Replies
    29
    Views
    599

    The dehumidifier is used a small air handler to...

    The dehumidifier is used a small air handler to mix the fresh air with the house air, filtered by Merv 13 and recirculated throughout the home, The drying part will only function when the indoor %RH...
  10. Replies
    81
    Views
    1,481

    We commonly maintain ambient dew points below...

    We commonly maintain ambient dew points below 32^F by passing the air through drying wheels that absorb moisture from the air and then are heated to the point were the moisture leaves the air in a...
  11. Replies
    81
    Views
    1,481

    When you come into the cool space with sweat on...

    When you come into the cool space with sweat on your skin, the evaporation cools your body.

    When you feel warm after the moisture evaporates, take a quick shower. Exit the shower and feel cool...
  12. Replies
    29
    Views
    599

    OK. This new drawing uses the original return...

    OK.
    This new drawing uses the original return from the home to the ERV as the source of air being recirculated. The limitation is that the ERV and dehumidifier fans need to operate at the same...
  13. Thread: Humidity

    by teddy bear
    Replies
    4
    Views
    254

    Are these guys good or what! They put the...

    Are these guys good or what! They put the solution to the problem right out there.

    Lets talk about the basic problem.
    A properly sized a/c will keep your home at the desired temperature you want....
  14. Replies
    81
    Views
    1,481

    Start with this, with a 75^F, 50%RH, a 55^F dew...

    Start with this, with a 75^F, 50%RH, a 55^F dew point, return air temperature from the home and a 56^F coil temperature, all of the cooling will be sensible. A ton of sensible cooling, 12,000 btus ...
  15. Replies
    81
    Views
    1,481

    A great post that causes figuring out what is...

    A great post that causes figuring out what is causing the equipment to do what needs to be done or not.

    There were all great answers! Explaining your understanding of the problem and function is...
  16. Replies
    29
    Views
    599

    Let's start over. The dehumidifier moves 300...

    Let's start over.

    The dehumidifier moves 300 cfm of air via an internal blower. You need a 100 cfm of fresh air when the home is occupied.
    Slow the ERV to 100 cfm of fresh air flow and operate...
  17. Replies
    29
    Views
    599

    I missed posting a marked up drawing. Still...

    I missed posting a marked up drawing.

    Still prefer the ERV fresh air to the home pass through the dehumidifier using the fan for distribution. Also the dehumidifier will dry the fresh air...
  18. Replies
    29
    Views
    599

    The UA 98H needs a 8"return from the open part of...

    The UA 98H needs a 8"return from the open part of the home and 8" supply duct system. Best to route the ERV supply through the dehu to remove the moisture and filter the air before mixing the fresh...
  19. Replies
    51
    Views
    1,221

    I remember comfort tech in the old days. SE US...

    I remember comfort tech in the old days.
    SE US tech conference or ??
    Keep me posted.
    Regards Teddy Bear
  20. Replies
    29
    Views
    599

    Fan on dehu 24/7 Fan on ERV low 24/7 ok or...

    Fan on dehu 24/7
    Fan on ERV low 24/7 ok or integrate on of your controllers
    Your dehumidistat connected to the dehu set at <50%RH will control the dehumidifier.

    The dehumidifier will suck more...
  21. Replies
    29
    Views
    599

    The identification of duct is critical. The...

    The identification of duct is critical. The exhaust ducts should take air from the most polluted areas to the ERV and blow it outdoors. The fresh air come into the home to the ERV and is routed to...
  22. Replies
    29
    Views
    599

    Yes. I posted on your earlier post. Come back...

    Yes. I posted on your earlier post.
    Come back on either post with the details on how you ERV is connected to the home. Need the supply and exhaust points.
    Regards Teddy Bear
  23. Replies
    9
    Views
    342

    Good chance of mating a whole house dehumidifier...

    Good chance of mating a whole house dehumidifier to the ERV and be able to maintain 50%RH while using the current cooling system.

    <2,500 sq.ft home in the SE US with fresh air ventilation via an...
  24. This means that with 50 Pascals of pressure on...

    This means that with 50 Pascals of pressure on the structure, which equivalent to a 20 mph wind, the home has 3.3 air changes in one hour. or 870 cfm of air leakage. Most suggest that by dividing...
  25. 50%RH should be your target. Let us know how it...

    50%RH should be your target.
    Let us know how it all works out.
    Search my past post for all the info.
    Regards Teddy Bear
  26. Before I give you my suggestions, lets give the...

    Before I give you my suggestions, lets give the a/c gurus a chance to solve this problem.

    A good contractor with state of the art equipment even single stage equipment, you should be able to get...
  27. Replies
    9
    Views
    481

    The dehu has a merv 13 air filter. If the dehu...

    The dehu has a merv 13 air filter. If the dehu gets air from the open part of the house, then air will circulate back to the space the where the dehu is located.
    Does that fit your idea of slow...
  28. If you want a real comfortable home, size the...

    If you want a real comfortable home, size the equipment for the max load. Add a small whole house dehumidifier to add a small whole house dehumidifier for maintaining <50%RH during evenings and...
  29. Replies
    17
    Views
    844

    JUst set the t-stat lower for now. On a good hot...

    JUst set the t-stat lower for now. On a good hot day, a properly setup unit will get below 50%RH. On rainy day or evening, the unit will over cool upto 3^F and shut off.
    Adding a small whole house...
  30. Fair enough. Fresh filtered air when occupied...

    Fair enough.
    Fresh filtered air when occupied and 50%RH during evenings and rainy days is comfortable and healthy.
    Like to hear about the install and setup plus the actual data through the...
  31. Better luck with spring or rubber hanging from...

    Better luck with spring or rubber hanging from the trusts than anything else. Also use flex duct on the duct connectors to the deh.
    Keep us posted.
    Regards Teddy Bear
  32. Replies
    9
    Views
    481

    OK on the 12" flex if stretched tight. Regards...

    OK on the 12" flex if stretched tight.
    Regards Teddy Bear
  33. Replies
    9
    Views
    481

    For the long return to the dehu, increase the...

    For the long return to the dehu, increase the size by 2". We are moving +-300 cfm.
    The amount of dry from the dehu will favor the short run verses 30 ft. by 60% for the shorter run. If not...
  34. Where in "God's green earth" are you located? ...

    Where in "God's green earth" are you located?

    Regards Teddy Bear
  35. Replies
    9
    Views
    481

    Return from open part of the house to the...

    Return from open part of the house to the dehumidifier. Supplies to each air handler to the down stream from the cooling coil. A/c fan does not need to operate to get distribution of dry air...
  36. Avoid the complexity of the two speed a/c. Go...

    Avoid the complexity of the two speed a/c. Go with 4 ton if you want a comfort with friends over. Must check ducts air flow capacity of a minimum of 350 cfm per ton. Check my previous post for a...
  37. Replies
    15
    Views
    404

    Thanks for caring. I suggest a UA 120 with a...

    Thanks for caring.
    I suggest a UA 120 with a return from the larger open area of the basement to the dehumidifier and a fresh air return to the dehumidifier also. Damper in the fresh air duct to...
  38. Seal off or run fan enough to warm the ducts...

    Seal off or run fan enough to warm the ducts above the house dew point.
    Regards Teddy Bear
  39. Replies
    15
    Views
    404

    Put a refrigerator in the space, adds heat, in...

    Put a refrigerator in the space, adds heat, in the basement with 80 cfm of fresh filtered fresh air to purge indoor pollutants and renew oxygen, plus the heat and moisture from the occupants. Any...
  40. Replies
    69
    Views
    1,349

    If it was my house, I would include a 150 perday...

    If it was my house, I would include a 150 perday whole house dehumidifier like the Ultra-Aire XT155H in the equipment list to provide some extra-moisture control for the key areas like the basement...
  41. Replies
    13
    Views
    452

    Intentions are good by all including the guys...

    Intentions are good by all including the guys that go high or low.
    But 6" walls full of insulation and vapor barriers are a new deal. Also add the high efficiency heating and cooling with sealed...
  42. What is the temp/%RH inside and outside? As...

    What is the temp/%RH inside and outside? As inside %RH declines, the amount of condensate removed declines. Target inside is <50%RH.
    Keep us posted, we do not get much info on your climate....
  43. This a recap of the amount of fresh air...

    This a recap of the amount of fresh air infiltration/ventilation you need in a 3,500 sq.ft. home is 150 cfm minimum to purge indoor pollutants and renew oxygen when occupied.
    Even air tight homes...
  44. Drying the moisture from the a/c coils is normal...

    Drying the moisture from the a/c coils is normal and desired to avoid extended damp time in any ducts.
    Keep us posted on the %RH during evenings, rainy days with occupancy/ventilation. <55%RH for...
  45. Let us hope that they do not setup for anything...

    Let us hope that they do not setup for anything less then .25 latent/.75 sensible heat.
    Less latent cooling and you will be marginal dehumidifying even during peak sensible cooling. Even adding a...
  46. Your dehumidifier is blowing 200 cfm of dry into...

    Your dehumidifier is blowing 200 cfm of dry into a supply/return that is designed to +1,000 cfm on the supply and the same on the return. You will feel much air flow blowing 200 cfm into a 2,000 cfm...
  47. Like fig 14 but fresh air and open part of house...

    Like fig 14 but fresh air and open part of house to the dehumidifier return. Ok no a/c fan. In the dehu mode, fresh air and house air through dehu to the a/c supply. The house air/fresh air will go...
  48. The "install" shown is a last resort way of...

    The "install" shown is a last resort way of connecting.
    Beenthere is on the right track. Connect the return to the dehumidifier to the open part of the home. Connect the dehumidifier to the a/c...
  49. Replies
    6
    Views
    531

    What climate are you in and have you been...

    What climate are you in and have you been satisfied with the past conditioning of current equipment? Also redo the ACCA sizing recommendations.
    With a developed basement, consider the current...
  50. Replies
    9
    Views
    347

    A properly setup functioning a/c should be able...

    A properly setup functioning a/c should be able to maintain <50%RH during typical peak cooling loads. If not, get a well trained tech to setup the a/c to remove 25% of the cooling capacity as...
Results 1 to 50 of 1000
Page 1 of 20 1 2 3 4
Contracting Business
HPAC Engineering
EC&M
CONTRACTOR