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Type: Posts; User: EmilG

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  1. Replies
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    My experience with the stat leads me to believe...

    My experience with the stat leads me to believe it doesn't always report it's measured temperature.
    A good way to verify is let it overcool then turn off cooling so it doesn't have a target...
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    IAQ Frost Control

    Does anyone have any specific info on the Frost Control algorithm?
    I understand when the outside temperature gets very cold it lowers the target humidity setting, but by how much? Does anyone have...
  3. Replies
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    2,618

    An ECM doesn't have to have a PFC front end as...

    An ECM doesn't have to have a PFC front end as shown in this case.

    Actually correcting for power factor is something the power company wants but it may actually make the ECM controller less...
  4. Thread: Home automation?

    by EmilG
    Replies
    6
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    928

    You may want to look here: ...

    You may want to look here:

    http://www.smarthome.com
  5. I can venture a guess on why it would always be...

    I can venture a guess on why it would always be ok for a single pipe system.

    When the induced draft blower draws air into the house the resultant pressure in the house would be higher than that...
  6. Poll: Theoretically yes, in reality ?

    Theoretically yes, in reality ?
  7. Replies
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    3,107

    Since it is not an expensive unit I'd much rather...

    Since it is not an expensive unit I'd much rather have them compromise on the cabinet vs. it's innards. Once it's installed the fact that it is thinner becomes insignificant.
  8. Replies
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    3,107

    I've had the downflow version (93%) for 1 1/2...

    I've had the downflow version (93%) for 1 1/2 yrs. now with no issues, it works well. I'd buy another if I had to do it over again.
  9. In my installation it goes right by the inlet.

    In my installation it goes right by the inlet.
  10. I have a GCV9 downflow and use a 20"x25"x2"...

    I have a GCV9 downflow and use a 20"x25"x2" filter.
  11. Don't forget about your AC, how much AC you need...

    Don't forget about your AC, how much AC you need could determine what blower size you need.
    Your installer should be able to tell you.
  12. Replies
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    528

    If you could get us some model numbers I'm sure...

    If you could get us some model numbers I'm sure we can get the info you need.
  13. Replies
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    6,949

    2 CPH will make it run longer and be off longer....

    2 CPH will make it run longer and be off longer. The unit removes humidity best when it has been on for some time and worse in the transition periods. Don't know if it will kick in the second stage...
  14. Replies
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    6,949

    You may consider running the upstairs unit at 2...

    You may consider running the upstairs unit at 2 CPH.
  15. Replies
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    6,949

    Check that your CPH (cycles per hour) settings...

    Check that your CPH (cycles per hour) settings are correct. If they are set too high the unit(s) wont run long enough for adequate humidity removal. You may want to call the manufacturer and see what...
  16. Replies
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    3,043

    I have a GCV90704 which I think is basically the...

    I have a GCV90704 which I think is basically the same thing but a downflow.
    It's been working perfectly for a year now in a 2000 sq ft ranch.
  17. Replies
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    990

    I have an IAQ with about the same amount of play....

    I have an IAQ with about the same amount of play. Until mentioned here I never noticed it so it's not an issue since I've had it for over a year now. It's snug enough that it doesn't move unless I...
  18. Replies
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    2,061

    :D

    :D
  19. Replies
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    2,061

    It's not a heat pump application so the "O" is...

    It's not a heat pump application so the "O" is used for something else like probably a feature activation line.
  20. Replies
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    2,061

    Refer your installer to this post: ...

    Refer your installer to this post:

    http://hvac-talk.com/vbb/showthread.php?p=1328894#post1328894

    Y and O for Goodman
  21. Replies
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    2,061

    I'm using ramp profile B. on, 50% for 1/2...

    I'm using ramp profile B.
    on, 50% for 1/2 min,constant 100%, 100% 1 min., off

    Have your contractor wire it like a Trane, it will probably work then, mine did.
  22. Replies
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    2,061

    This was an older post, the ductwork has since...

    This was an older post, the ductwork has since been revised.
    As I remember the temperature delta was within specs.

    Thanks!
  23. Replies
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    2,061

    There is no visual indication if it's calling for...

    There is no visual indication if it's calling for dehumid or not.

    But
    If the yellow LED is on it's calling for dehumidification.
    It's it's off, it's operating at full speed.

    The best way to...
  24. Replies
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    2,061

    The green blower speed LED does one flash per 100...

    The green blower speed LED does one flash per 100 CFM.
    At full speed, 1000 CFM, you'll see 10 flashes.
    At reduced speed, 850 CFM, you'll see 8 flashes.

    Note: it's kinda hard to count these but...
  25. From the product spec. for a Goodman GCV90704CXB:...

    From the product spec. for a Goodman GCV90704CXB:

    High Fire Input 69000
    High Fire Output 65000 - 94.2%
    Low Fire Input 48000
    Low Fire Output 45000 - 93.7%

    The burner efficiencies are...
  26. Question, Since in general the low stage on a...

    Question,

    Since in general the low stage on a two stage will have a longer run time than a single stage isn't it's total run time efficiency higher?

    It's off to on and on to off time (the times...
  27. From what I read a modulating is like a two stage...

    From what I read a modulating is like a two stage but with more stages. So of instead of having 2 selectible BTU outputs it may have 10 or more. That 80% efficiency number is a definite negative.
  28. From the OP Ask him about the Goodman GCV9...

    From the OP

    Ask him about the Goodman GCV9 series, it's a 93% Efficiency, 2-Stage Heat, Variable Speed Blower, Horizontal / Downflow.
    I have one in a downflow configuration.
  29. Replies
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    658

    No bulbs in it, LED's. When designed properly...

    No bulbs in it, LED's.
    When designed properly they last a lifetime especially at reduced voltage which it reverts to after a time delay.
  30. Replies
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    658

    Thanks, I figured except for causing cancer...

    Thanks,

    I figured except for causing cancer somehow and of course contributing to global warming it wouldn't hurt anything.

    It makes a great hallway light for me besides being able to just...
  31. Replies
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    658

    Quick VP IAQ question

    Does anyone know of any negatives to keeping the backlight on?
    Thanks
  32. Replies
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    2,778

    How often does it cycle on and off? Is your CPH...

    How often does it cycle on and off?
    Is your CPH set high not allowing it to turn off long enough?
    Just some thoughts.
  33. Replies
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    1,938

    Is it possible for you to get another blower (not...

    Is it possible for you to get another blower (not the motor but the fan part) that will give you less CFM per rpm? You could then change the heating tap to high and all should be fine.
    Just a...
  34. Replies
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    2,061

    I understand vs motor control very well and how...

    I understand vs motor control very well and how to control them, it's the specifics of this particular implementation that I'm asking about.

    It's ok,
    Thanks for your time.
  35. Replies
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    2,061

    I'm wondering if in the programming of the motor...

    I'm wondering if in the programming of the motor there is an option to activate this control?
    I expect to hear tomorrow what they say, I'm hoping for the best.

    Thanks
  36. Replies
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    2,061

    Talked to the tech representative and he's going...

    Talked to the tech representative and he's going to contact Goodman and see if they've had problems and we'll go from there.
    This is good news :).
    Thanks all
  37. Replies
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    Classical, thanks for the reply! This is great...

    Classical, thanks for the reply!

    This is great info to have when I contact tech support.
    I won't expect the LED to reflect an rpm change then. As I mentioned I can detect a speed reduction easily...
  38. Replies
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    2,061

    Got around to attempting to check the fan speed. ...

    Got around to attempting to check the fan speed.
    By measuring the motor current I could see if the motor slowed or at least was commanded to slow. At 100% speed I measured 6.5a., at 82% speed (part...
  39. Replies
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    2,061

    I just depends on how they implement it. For...

    I just depends on how they implement it.
    For the ramping profile they show different CFM's, logically I would think in dehumidify mode they would do the same but you don't know. I wish we could get...
  40. Replies
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    2,061

    I haven't checked it in both cases but I see what...

    I haven't checked it in both cases but I see what you are getting at. If the static is too high at full speed then it's running at reduced cfm already. When it commands a slower speed it may be...
  41. Replies
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    2,061

    At this fan speed I was getting .6", the blower...

    At this fan speed I was getting .6", the blower is rated from .1" to .8" so I think I'm good there. It has a led to indicate CFM, it shows the same rate when there is a dehum call or not, I would...
  42. Replies
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    2,061

    The jumper has been cut, the DEHUM LED is on when...

    The jumper has been cut, the DEHUM LED is on when it's calling for dehumidify. When the jumper was not cut the LED was always off.

    Thanks
  43. Replies
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    2,061

    Goodman GCV9 dehum doesn't seem to work

    Has anyone hooked up the dehumidify function on a Goodman GCV9 lately?
    I have mine connected to an IAQ and I see no difference in fan speed. Everything looks correct like there is a call for...
  44. Replies
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    1,586

    Thanks, I'm running it with the normal ramp...

    Thanks,

    I'm running it with the normal ramp right now as suggested, if the humidity is correct when I get home then I'll leave it there.

    I do prefer running the fan but I don't like the...
  45. Replies
    3
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    1,586

    Humidity Control, Thermostat or Furnace

    I have a VisionPro IAQ with humidity control but I don't have a separate de-humidifier. I've enabled the humidity control on the furnace and wired it appropriately to use the A/C to dehumidify. The...
  46. Replies
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    1,526

    At max speed for A/C .6", just on the edge. I...

    At max speed for A/C .6", just on the edge.
    I did add a bit of ductwork to open up a long run, haven't measured after doing it however.
    Thanks
  47. Replies
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    1,526

    My HVAC guy returned yesterday and it all checks...

    My HVAC guy returned yesterday and it all checks out. He did an IWB reading and ODB plus read the pressures and the SH is right on the money (it was 9 yesterday).

    It was mentioned that if the flow...
  48. Thread: Faint gas smell

    by EmilG
    Replies
    10
    Views
    1,557

    I had a leak out the back of my shutoff valve,...

    I had a leak out the back of my shutoff valve, sprayed the bubbly soap on it and sure enough, found it.
  49. Thread: Faint gas smell

    by EmilG
    Replies
    10
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    1,557

    Don't mess around with gas, get someone out there...

    Don't mess around with gas, get someone out there ASAP.
  50. Replies
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    Thanks! I hope I can get him in here ASAP!

    Thanks!
    I hope I can get him in here ASAP!
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