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  1. Replies
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    I recently installed a 5 ton single phase Allied...

    I recently installed a 5 ton single phase Allied Commercial (Lennox) packaged unit and it also has a noisy but functional Interlink compressor. Too bad, because otherwise the unit seems well made.
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    Thanks. The pump came apart easily. I saw no...

    Thanks. The pump came apart easily. I saw no dirt or any other problem with the diaphragm or reeds. I put it back together and now it works fine. I wonder what I did that fixed it.
    ...
  3. Replies
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    22,183

    I took out the pump but couldn't figure out how...

    I took out the pump but couldn't figure out how to get it apart without breaking it. Is there a way of squeezing it to separate the halves?
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    22,183

    I read somewhere that the 320 is made in germany...

    I read somewhere that the 320 is made in germany and the 310 is made in china. Can anyone confirm this? I am considering replacing my 5.5 year old TSI 6130.

    Has anyone seen this problem on the...
  5. Replies
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    2,661

    I've been using that bender for years. It works...

    I've been using that bender for years. It works great as long as I keep the shoes oiled. And yes I highly recommend the reverse attachment
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    950

    http://www.hvi.org/assets/pdfs/CPD/CPD_Sec3_01Oct0...

    http://www.hvi.org/assets/pdfs/CPD/CPD_Sec3_01Oct09.pdf

    Renewaire rates very well in these tests.
  7. Replies
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    632

    most power venters are not plug-and-play. they...

    most power venters are not plug-and-play. they have a throttle that needs to be adjusted correctly or they will draw too much air through the heat exchanger. be safe and have a pro set it up.
  8. why don't you want 95%?

    why don't you want 95%?
  9. Replies
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    3,312

    Rheem used 34 second ignitors. Most trucks are...

    Rheem used 34 second ignitors. Most trucks are stocked with 17 second ignitors which are much more common and will burn out prematurely if heated for 34 seconds. The correct ignitor will say Protech...
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    control wiring for heat pumps is more complex...

    control wiring for heat pumps is more complex than for typical furnaces and a/c. and it is not consistent among brands. the safe thing to do is hire an hvac guy to connect the systems.
  11. Replies
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    don't let anyone dissuade you from doing...

    don't let anyone dissuade you from doing research, seeking advice, and getting several bids. the guy who told you manual j calculates low is wrong. an outdoor tstat is a must. make sure the...
  12. Thread: Air Cleaners

    by jjou812
    Replies
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    864

    all electronic air cleaners produce ozone which...

    all electronic air cleaners produce ozone which is a pollutant. personally I prefer an extended media filter (examples: 20x25x5 merv 11, or SpaceGard)
  13. To me 95% is all that exists. I almost never...

    To me 95% is all that exists. I almost never install 80%.

    Multistage is for comfort. For lowest gas usage, get a properly sized 95% single stage unit.
  14. Replies
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    1,084

    Ways to close gaps in ducts: 1. Have...

    Ways to close gaps in ducts:

    1. Have correctly sized duct fabricated.

    2. Use sheetmetal pieces/angles to close gap and seal with duct sealer.

    Wrong way to close gaps : Tape.

    Tape may be...
  15. That's too bad. Hallowell's idea seems on paper...

    That's too bad. Hallowell's idea seems on paper to be a winner. I guess they need to work out the bugs.
  16. http://www.renewaire.com/for_your_home/faq.php

    http://www.renewaire.com/for_your_home/faq.php
  17. Replies
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    1,094

    I use 20 x 25 x 5 MERV 11 filters made by...

    I use 20 x 25 x 5 MERV 11 filters made by Ultravation. Reasonable pressure drop, good filtering, and change interval of every six months. That is a common size made by several other mfrs: Trion,...
  18. Replies
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    5,617

    Are there any pool chemicals or water softener...

    Are there any pool chemicals or water softener salt in the house? Chemicals in the air cause formicary corrosion which can kill a coil in one year.

    On the other hand, I used to work for a...
  19. Replies
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    3,407

    Fluke 116 and 179

    Fluke 116 and 179
  20. Replies
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    http://www.raeco.com/acatalog/TSI_CalibrationKits....

    http://www.raeco.com/acatalog/TSI_CalibrationKits.html

    Kit # 802003

    Do you guys use such a kit? Is there a cheaper alternative? (I already have the nitrogen, so I just need the 500 ppm CO)
  21. Replies
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    1,309

    I also have the 6130. The mfr wants it...

    I also have the 6130. The mfr wants it calibrated at least once per year. The kit costs $600 !!!!!!!!!

    I refuse to spend that much for a calibration kit, so I tolerated some inaccuracy for about...
  22. Replies
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    3,460

    A 95% furnace is 95% efficient when running at...

    A 95% furnace is 95% efficient when running at maximum capacity. When the furnace modulates down to a lower capacity for comfort, the efficiency goes down. Unfortunately for now, there are no...
  23. Replies
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    2,431

    just get a generic 1.5 ton coil with correct...

    just get a generic 1.5 ton coil with correct piston size per outdoor unit
  24. Replies
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    518

    Reasons for VS: 1. You run fan continuously...

    Reasons for VS:

    1. You run fan continuously to reduce stratification.
    2. You run fan continuously because you use extended media or electronic air filtration and want cleanest air.
    3. Your...
  25. I've had this on occasion. The xformer vibrates...

    I've had this on occasion. The xformer vibrates the sheetmetal it's attached to which vibrates against another piece of sheetmetal. Easy for tech to fix. Identify the source and shove something in...
  26. Replies
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    1,872

    most Kenmore units are made by ICP

    most Kenmore units are made by ICP
  27. Replies
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    1,785

    My suggestion for this situation is a Renewaire...

    My suggestion for this situation is a Renewaire 200 CFM ERV and an Abatement Technologies CAP600UV air purifier. No I'm not pushing any specific brands; just saying I've used this combination with...
  28. Replies
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    1,872

    We call it a "burnout" when a compressor fails...

    We call it a "burnout" when a compressor fails electrically. The extreme heat burns the refrigerant and oil, forming acid and sludge which can destroy the components in the refrigeration circuit,...
  29. Get the 70,000 btu. Better to slightly undersize...

    Get the 70,000 btu. Better to slightly undersize than grossly oversize. For the few hours per year when the temp drops to design temp, supplement with space heaters. You'll be more comfortable the...
  30. Replies
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    100,000 btu for 1700 sq ft sounds like A LOT of...

    100,000 btu for 1700 sq ft sounds like A LOT of heat. Of course Iowa gets colder than PA, but that would need to be a ridiculously leaky house to need that much. Average newer house around here...
  31. Replies
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    6,594

    r410a heat pumps seem to be louder than r22 when...

    r410a heat pumps seem to be louder than r22 when initiating and terminating defrost. trane's solution with some xl15i models is to shut down the comp when initiating, and start the vs outdoor fan a...
  32. are you sure you need that many btus? do a heat...

    are you sure you need that many btus? do a heat loss calc. you may only need the 70k btu amana. 2 stage or mod furnaces provide excellent comfort, but the anecdotal evidence that they are...
  33. hrv/erv is the most efficient way to bring in...

    hrv/erv is the most efficient way to bring in fresh air. visit http://www.hvi.org/benefits.html. HVI tests units for performance and efficiency. Renewaire seems to provide the most bang for the...
  34. were any of the 5 or 6 contractors NATE...

    were any of the 5 or 6 contractors NATE Certified? visit www.hvacradvice.com. request a tech who is certified in both A/C and Airflow. the tests are no joke, they are tough.

    btw- the minisplit...
  35. Replies
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    i have not seen a higher rate of problems for 95%...

    i have not seen a higher rate of problems for 95% furnaces or variable speed blowers and highly recommend them. definitely get r410a.

    replacing the system is a great time to upgrade your air...
  36. Replies
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    2,184

    1. Close the 2nd floor registers to force the...

    1. Close the 2nd floor registers to force the heated air where it's needed.
    2. Replace the single pane windows.

    Unless the ductwork to the 1st floor is grossly undersized this should work.
  37. in my limited experience with minis, i have found...

    in my limited experience with minis, i have found mitsu inverter units easy to work on, exceptionally quiet, and have excellent tech support.

    most importantly, make sure the technician pressurizes...
  38. Replies
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    lots of townhouses here in PA. neighbors...

    lots of townhouses here in PA. neighbors complain about noise. i didn't buy an appion because of comments on this forum about noisy operation. all of the companies i've worked for provided promax....
  39. Replies
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    1,159

    How does purge work on Appion G5?

    I like the purge feature on Promax, but I'm considering buying a G5. The Appion salesman said it purges the liquid out automatically. Is this true?
  40. had inficon tekmate for years. very good for...

    had inficon tekmate for years. very good for detecting leaks but ear-piercing and prone to false alarm. bought YJ accuprobe and tested against tekmate and a ZX1. i dont think the YJ works any...
  41. Me too. I've been using Inficon TekMate for...

    Me too.

    I've been using Inficon TekMate for years and I think it's a good performer considering the low price ($150).

    But I'm ready to move up to a more accurate and quiet one since Tekmate...
  42. Replies
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    the only thing the 179 lacks is microamps. ...

    the only thing the 179 lacks is microamps. notice that the 116 lacks flow-thru amps, is warranteed for 3 yrs (179 is lifetime), and is not ruggedized like the 179. i've had my 179 for 4 yrs and am...
  43. in the late 80's Carrier installed some Basotrol...

    in the late 80's Carrier installed some Basotrol valves upside down which prevented them from completely shutting off gas to the pilot. i saw one that was 13 y/o. i guess all the techs who worked...
  44. Replies
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    1,300

    Want least maintenance comb. analyzer....TSI?

    i'm getting dizzy reading all these combustion analyzer threads, trying to separate the salesmans' hype from reality. it seems that TSI is the clear winner for easy maintenance and fast response. ...
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    if a 700 runs on "Bypass" but not "Power" then it...

    if a 700 runs on "Bypass" but not "Power" then it must be miswired. i suppose something might be defective but that's rare. do not run it in "Bypass". check all your wiring against the diagrams in...
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