Search:

Type: Posts; User: dryguy

Page 1 of 3 1 2 3

Search: Search took 0.01 seconds.

  1. Replies
    5
    Views
    846

    I've been helping design indoor pools for almost...

    I've been helping design indoor pools for almost 20 years and I've only worked with one pool that was iintentionally designed with such high temperatures like the conditions you listed. It was a...
  2. Replies
    3
    Views
    437

    For lbs. per hour, you need the CFM, and you said...

    For lbs. per hour, you need the CFM, and you said you have the temp and Rh in and temp Rh out. Grab a Psych chart and plot the in and out conditions and determine grains on the far right side of the...
  3. Replies
    10
    Views
    3,741

    Correct pool chemistry is the most important fix....

    Correct pool chemistry is the most important fix. A negative pressure in this space is still necessary even if the pool chemistry is correct. The Chloramines which are causing the smell are...
  4. Replies
    2
    Views
    558

    Clyde's your guy. When the company went under,...

    Clyde's your guy. When the company went under, he got all of the service files. Depending on the year, there were two controllers, one assembled at the factory and one bought from Carel and...
  5. Thread: Dumont poolpk

    by dryguy
    Replies
    1
    Views
    371

    I'd guess that you found the leaks along the tube...

    I'd guess that you found the leaks along the tube sheet down where the hot gas enters the coil. the tube sheet should allow the copper tubing room to expand, if the tube sheet is tight on those...
  6. Replies
    5
    Views
    955

    Condenser Coil Flooding

    Desert Aire and Dectron dehumidifiers use condenser coil flooding for the outside condenser and the condenser reheat coil. That is why there is so much charge used. Both systems bring outside air...
  7. Replies
    3
    Views
    525

    We have horses too and I've been wanting to use...

    We have horses too and I've been wanting to use the stall waste... dung and pine shavings, for heating.. I live in Maine, so heating is important to us. Do a google on multi-fuel boilers. The...
  8. Thread: Water temp

    by dryguy
    Replies
    11
    Views
    801

    Instead of a boiler, you might be able to get by...

    Instead of a boiler, you might be able to get by with a small water-to-water heat pump designed specifically for those low temperature days to feed warmer water to the loop.
  9. Replies
    41
    Views
    4,211

    You might only need to add heat to the space. ...

    You might only need to add heat to the space. The reason it is "raining" inside is that the walls are below dew point during the cooling season. If you can get a measurement of the air temps and rh...
  10. Replies
    14
    Views
    4,482

    I'll give it a try PJ's. The specific reason...

    I'll give it a try PJ's.

    The specific reason for elevated evaporation is changes of vapor pressure at the pool surface. Here's how it plays out in a real life application:

    A hotel pool kept at...
  11. Replies
    14
    Views
    4,482

    As long as the unit can maintain the rH @ 55%,...

    As long as the unit can maintain the rH @ 55%, then the condensation issue is either a space heating issue or air movement issue. The space heating component has to maintain space temperature at...
  12. Replies
    6
    Views
    2,146

    Mold is suspect. To verify, someone needs to...

    Mold is suspect. To verify, someone needs to check the room/house RH. The AC has to be running all the time to keep this temperature and the air in this house has to be very close to saturated...
  13. Replies
    6
    Views
    990

    A need for lower air quality standards?

    Attached is a link to an article suggesting our homes are too clean.
    ...
  14. Replies
    11
    Views
    6,722

    Here's the "any info".... no direct link. Air...

    Here's the "any info".... no direct link. Air Flow Company is now a formerly company. The new name...according to a rep web site in northern california is APC Network Air. I could not find a...
  15. Replies
    7
    Views
    1,226

    A dehumidifier has a dx coil and the condenser...

    A dehumidifier has a dx coil and the condenser coil in the same unit. If you are clever with controls, isntall a 12,000 btuh window shaker in the space making sure that the condenser section...
  16. Replies
    37
    Views
    1,916

    In the spring, buy 6 chickens and let them have...

    In the spring, buy 6 chickens and let them have the run of the yard. They'll fatten up on ants, ants will be taken care of with no poisons. Good eating in the fall. See the Grilling section for...
  17. Replies
    17
    Views
    2,203

    For a corrosion resistant unit, consider the...

    For a corrosion resistant unit, consider the E-Tech PhD unit. The unit is constructed using painted aluminum instead of painted steel. The control panel is built in a service vestibule with spacing...
  18. Replies
    20
    Views
    4,261

    The Leibert units will not achieve 28% RH and are...

    The Leibert units will not achieve 28% RH and are not designed to do so At 70 DB/ 28% Rh, the dew point is below 35 degrees. You'd have to run the evap coil below freezing temps to get that. Evap...
  19. Replies
    2
    Views
    561

    Marvair is another. They have the economizer...

    Marvair is another. They have the economizer feature you were describing.
  20. Replies
    8
    Views
    1,266

    If by Spa, you mean whirlpool with water jets,...

    If by Spa, you mean whirlpool with water jets, depending on the surface area and water temp, the evaporation can be anywhere's from 7 - 15 #/hr which can be handled by a 2 - 4 ton dehumidifier. A...
  21. Replies
    13
    Views
    4,125

    If and when the HVAC specialist comes to look...

    If and when the HVAC specialist comes to look over the system, also have as much detail about the cosmetic powder that is flying through the air--mostly what it is made of. Most cosmetics use...
  22. Replies
    11
    Views
    1,111

    I don't think a heat wheel would work in this...

    I don't think a heat wheel would work in this application as the wheel would pick up some of the VOC's and carry them back into the fresh air during rotation. I would consider a heat pipe or...
  23. Thread: Carbon Credits

    by dryguy
    Replies
    9
    Views
    931

    I have applied for a patent to resupply the taco...

    I have applied for a patent to resupply the taco bell seating. Each seat will now have a gas spigot you sit on, and the gas from the seating area is piped through the seat into a pipeline back into...
  24. Weathered's last post is leading you in the right...

    Weathered's last post is leading you in the right direction. Fog on the windows means that there is enough humidity in the air and a cold enough window surface to reach dew point and moisture in the...
  25. Thread: Mold Vs. Mildew

    by dryguy
    Replies
    6
    Views
    4,984

    Hot Air, Here's my stab at this for you. ...

    Hot Air,

    Here's my stab at this for you.

    Both are fungi, so there's a parallel in trees, its like the difference between pines and oaks, they are both trees but different... and the...
  26. Thread: APR Unit

    by dryguy
    Replies
    1
    Views
    565

    JT The last owners of the APR line was LSB...

    JT

    The last owners of the APR line was LSB Industries that also own Climate Master. I'm pretty sure they still have technical and spec information on these units. I believe the corporate office...
  27. Replies
    5
    Views
    606

    The company I work for manufactures an indoor...

    The company I work for manufactures an indoor pool dehumidifier that also incorporates a heat pipe in a refr.-based dehumidifier to precool return air before getting to the DX coil. This drops the...
  28. Replies
    42
    Views
    3,934

    Carnak, How about a partial reheat coil...

    Carnak,

    How about a partial reheat coil capacity tied into a water-cooled loop for domestic water tank preheat? No contractor needed to run refr. lines and useful heat isn't tossed away. This...
  29. Replies
    2
    Views
    587

    There are several ways to convert garbage, wood...

    There are several ways to convert garbage, wood waste and doo doo to energy. Biodigesters (your google search word) use bacteria and enzymes to do the work in an oxygen starved enclosure. They...
  30. Thread: Dumont Pool Ac

    by dryguy
    Replies
    2
    Views
    1,052

    I worked for Dumont and with Clyde who appears on...

    I worked for Dumont and with Clyde who appears on the link that Geno provided. Clyde is good people and you'll find him quite helpful. Good Luck.
  31. Replies
    42
    Views
    3,934

    PSTU The derating for the dehumidifier should...

    PSTU

    The derating for the dehumidifier should be somewhere in the 2% per degree range. I confirmed using commercial dehumidifiers that had capacity curves through temperature and humidity...
  32. Replies
    27
    Views
    2,844

    While looking at options, you may want to...

    While looking at options, you may want to consider a Heat Pump Water Heater for your water heating needs. These units produce cool air on one side of the system which can be used to reduce the...
  33. Thread: 3 Pipe System?

    by dryguy
    Replies
    11
    Views
    1,516

    Look for the fifth pipe in the back of the...

    Look for the fifth pipe in the back of the building. There should be a van there. This pipe is usually passed around. We are talking about a whole different level of comfort conditioning.
  34. Replies
    15
    Views
    1,245

    Paul, The residential heat pump water heaters...

    Paul,

    The residential heat pump water heaters have just enough fan to draw air over the coil. They will not have enough power to push air through ductwork without a considerable loss of...
  35. Replies
    15
    Views
    1,245

    Heat Pump Water Heater Company

    I work for a company that manufactures heat pump water heaters for residential and commercial applications.

    Here is the link for the residential unit. This unit works best when placed in an...
  36. Thread: dectron

    by dryguy
    Replies
    26
    Views
    2,374

    Jeep, My experience with these units is that...

    Jeep,

    My experience with these units is that its best to do a final balance charge when air temp is closer to design. You mentioned 70 EAT with an 89 design. Your ref. pressures at 70 EAT will...
  37. Replies
    7
    Views
    847

    Here's a web site to start your research...

    Here's a web site to start your research compliments of our tax dollars at work.

    http://www.usembassy.at/en/download/pdf/ccg2005.pdf#search='doing%20business%20in%20Austria'

    Good Luck
  38. Replies
    13
    Views
    1,412

    Our company has built cooling units recently...

    Our company has built cooling units recently destined for Iraq, to cool mobile communication centers. We are talking about operation with 120F ambients. Everything in the military is portable.
  39. Replies
    11
    Views
    1,069

    Don't sweat it local

    Don't sweat it local
  40. Replies
    11
    Views
    1,069

    Parker, I learned Psychrometrics from a...

    Parker,

    I learned Psychrometrics from a workbook put together by Honeywell. I still refer to this workbook for the calculations when 2 air streams with different temp and rh characteristics are...
  41. Replies
    8
    Views
    980

    Kitchen water heating

    Have you considered heat pump water heating? For kitchens, heat pump water heaters provide side benefit of cooling and dehumidification in the kitchen area. The up front costs will probably be...
  42. Replies
    16
    Views
    1,957

    Windows lose heat two ways. The first way is...

    Windows lose heat two ways. The first way is through conduction in which the heat travels through the material to the outside. R-factor is the resistance in the materials to let the heat pass. By...
  43. Replies
    10
    Views
    1,504

    For the best read on Legionnaires disease, see...

    For the best read on Legionnaires disease, see what our government has produced at the CDC at the following link:

    http://www.cdc.gov/ncidod/dbmd/diseaseinfo/legionellosis_g.htm#4

    There's a lot...
  44. Replies
    8
    Views
    1,230

    Radiant heating underneath the seating area? ...

    Radiant heating underneath the seating area? This is a barn so it should be relatively easy to lay down the tubing on the existing concrete and raising the floor another 2-3 inches without worrying...
  45. Replies
    4
    Views
    666

    If this Dectron unit relies on the water flow for...

    If this Dectron unit relies on the water flow for head pressure control, then the slower speed may not provide enough pressure to keep the water pressure switch satisfied. If the water pressure...
  46. Replies
    12
    Views
    982

    The University of Minnesota Extension Service has...

    The University of Minnesota Extension Service has a nice 4 part series on basement moisture. Its an easy read and covers the causes and solutions.

    Here's the link:
    ...
  47. Replies
    21
    Views
    4,257

    DOE Residntial Dehumidification Research Results

    I work for a commercial dehumidification manufacturing plant here in the States, so I follow many of the humidity control threads here. I notice many names over and over again in the humidity...
  48. Replies
    5
    Views
    5,715

    Toni, The fast answer to your question is...

    Toni,

    The fast answer to your question is yes, you can set up individual components to perform similar to the Dectron or Desert Aire units.

    The Ebac models you provided will not have cooling...
  49. Thread: desuperheaters

    by dryguy
    Replies
    4
    Views
    906

    I have experience with 2 companies that make a...

    I have experience with 2 companies that make a double- walled vented heat exchanger. Try Turbo-tec out of Connecticut 860-683-2133 http://www.turbotecproducts.com or Edwards Engineering out of New...
  50. Replies
    5
    Views
    1,910

    In the day, I worked at Dumont and personally...

    In the day, I worked at Dumont and personally know the former Service Manager for that line. Clyde Moody has set up a business to provide parts and support for the Zephyr Dehumidifiers. Clyde's...
Results 1 to 50 of 102
Page 1 of 3 1 2 3
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event