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Type: Posts; User: vibration

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  1. Replies
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    4,410

    There is a new ac brand called comfortstar, all...

    There is a new ac brand called comfortstar, all units made in china, and their small sizes (2.5 t and under) all use panasonic/hitachi rotary compressor. They are super quiet. All these compressors...
  2. Replies
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    511

    Yeah, the mounting kit only good for 1/2hp and...

    Yeah, the mounting kit only good for 1/2hp and under.
  3. B149-10 8.4 is talking about appliances...

    B149-10 8.4 is talking about appliances over400,000btu.
    When the air supply is provided by natural airflow from the outdoors for natural-draft, partial fan-assisted, fan-assisted, or power...
  4. Replies
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    6,819

    You may find it is difficult to flush the unit...

    You may find it is difficult to flush the unit without the service valve kits. Navien combi has a flue gas limit switch preset at 149, but it is recommended to us higher temp cpvc venting.
  5. Replies
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    8,993

    Looks identical to another brand "comfortstar"....

    Looks identical to another brand "comfortstar". They are made in China, and small units(<3ton) use Toshiba/Panasonic rotary compressor. They are quiet and look nice. The compressor has been used in...
  6. Only compressor froze up?

    Only compressor froze up?
  7. If you consider more about extreme weather, why...

    If you consider more about extreme weather, why not put in a P series, it will performance the same as low as the temp 5F. That means even at 5F, the unit will give same heat output as at 47F.
  8. Replies
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    1,604

    For high SC, maybe low ambient, non condensible....

    For high SC, maybe low ambient, non condensible.
    For low SC, dirty condenser coil or bad condenser fan.
    I dont think low airflow at evaporator and over feeding metering device will definitely cause...
  9. Thread: Low ambient

    by vibration
    Replies
    11
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    1,241

    Under that low ambient, and maybe low load, you...

    Under that low ambient, and maybe low load, you can't check the charge in cooling. Why you doubt it? Did you weigh in, or just released from condenser?
  10. Replies
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    2,765

    amana once had 80v ignitor. Later, all changed to...

    amana once had 80v ignitor. Later, all changed to 120v. So if you change the board, make sure the ignitor is not 80v.
  11. Replies
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    1,730

    We had same issue with amana cause they put...

    We had same issue with amana cause they put something in that service valve, and no installers paid attention to that changes in installation manual. It only leaks in extremely cold weather.
  12. Replies
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    2,166

    When the fan runs continuously, the first thing I...

    When the fan runs continuously, the first thing I would check is limit.
  13. Faststat

    Faststat
  14. Replies
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    8,824

    Lennox will have new replacement for control...

    Lennox will have new replacement for control board. They already have the part number, but no price for that.
  15. Replies
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    917

    drain problem, then water went into pressure...

    drain problem, then water went into pressure switch and damaged the switch.
  16. Replies
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    4,566

    Frankly, for service, Amana/goodman is my...

    Frankly, for service, Amana/goodman is my favorite.
  17. Replies
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    4,410

    Normally we check static pressure (furnace not...

    Normally we check static pressure (furnace not working) and working pressure (furnace is firing), calculate the pressure drop, pressure drop is more critical.
  18. Replies
    27
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    5,384

    I guess the installer drilled the hole for...

    I guess the installer drilled the hole for exhuast at a wrong pitch, so the water stays in the horizontal pipe through the wall.
  19. Replies
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    4,475

    The problem is you cannot get all of the reading...

    The problem is you cannot get all of the reading for all brands you service. Like you said, even amana has several different types of igniter, and they have different resistance, and sometime even...
  20. Replies
    32
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    2,715

    amvm is also a modulating furnace if works with...

    amvm is also a modulating furnace if works with the series communicating tstat, amana said.
  21. Thread: Melted CSST!

    by vibration
    Replies
    10
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    951

    Does the csst touch the water tank c vent?

    Does the csst touch the water tank c vent?
  22. Replies
    18
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    1,240

    If it requires 2.5" and you put 3", will it cause...

    If it requires 2.5" and you put 3", will it cause problem?
  23. Did you check the flame pattern? This happened to...

    Did you check the flame pattern? This happened to me once. when I looked at the flame, one burner flame was different from the others, smaller flame. Removed manifold, found spider nest in that...
  24. Replies
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    3,056

    Customer replaced tstat, no heat. Found the tstat...

    Customer replaced tstat, no heat. Found the tstat energized everything, heat, cool, fan when it called for heat. Not a heat pump tstat.
  25. Replies
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    1,262

    My question is how cold was inside your house...

    My question is how cold was inside your house last year? What was your tstat set at? Maybe your old furnace had some problems so it could not keep the temperature in your house, not because the...
  26. Replies
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    852

    I cannot get how you calculate the heat loss. So...

    I cannot get how you calculate the heat loss. So you think the properly sized furnace will work 15 minutes and stop for 15 minutes at design temp?
  27. Replies
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    1,376

    I got my *. They did not notice me.

    I got my *. They did not notice me.
  28. Replies
    19
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    1,376

    I am not suppose to answer your question since I...

    I am not suppose to answer your question since I am still waiting for my *. But, because my username is half of yours, just check all the screws on the outdoor unit, loose a little bit, tight again,...
  29. Replies
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    2,306

    radiant heat, not electric heat element? your...

    radiant heat, not electric heat element? your original hvac installer may be wrong.
  30. 6 vent motors replacement. I wish it's a joke.

    6 vent motors replacement. I wish it's a joke.
  31. Thread: HRV question

    by vibration
    Replies
    3
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    431

    Just confused. HRV makes your house dry in winter...

    Just confused. HRV makes your house dry in winter and Humidifier makes your house wet. HRV is only used in winter not in summer. The drain is for winter condensation, not for summer...
  32. Replies
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    753

    You are right. Lockup can happen even the...

    You are right. Lockup can happen even the windings are good. You also need somebody to check out why this happened before change the compressor.
  33. Maybe wires shorted together, or just bad tstat.

    Maybe wires shorted together, or just bad tstat.
  34. Thread: Goodman mod

    by vibration
    Replies
    11
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    1,566

    For 2 stage or their CTK1 tstat, if the second...

    For 2 stage or their CTK1 tstat, if the second stage calls off and first stage stay on, it will not shift to low fire. I saw the picture of their CTK2 Tstat, It is identical to Rheem's new serial...
  35. Thread: Goodman mod

    by vibration
    Replies
    11
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    1,566

    If use single or two stage tstat, just like...

    If use single or two stage tstat, just like lennox SLP. If use their CTK2A T-STAT, it's full modulating. I believe the CTK2A is same as Rheem's series communicating modulating tstat.
  36. Maybe just old code.

    Maybe just old code.
  37. Replies
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    1,064

    Of course you should check your manifold pressure...

    Of course you should check your manifold pressure first, then clock the meter.
  38. I really doubt this, the reason why the OP...

    I really doubt this, the reason why the OP thought the ac was wrong.
  39. Replies
    8
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    1,064

    I dont think clocking gas meter has anything to...

    I dont think clocking gas meter has anything to do with gas pressure. Clocking gas meter is to calculate the input for the appliance.
  40. Replies
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    3,338

    Check if your furnace is 2 stage before you...

    Check if your furnace is 2 stage before you remove it.
  41. Replies
    5
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    1,165

    Can't use tekmate pro for emerson ECM?

    Can't use tekmate pro for emerson ECM?
  42. Replies
    5
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    1,165

    It works well.

    It works well.
  43. Replies
    5
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    1,165

    emerson ecm tester

    Is it same as tekmate that for GE ECM? Can I use Tekmate pro to test Emerson ECM?
  44. Replies
    4
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    666

    Johnstone account

    Does Johnstone only sell stuff to people who have account with them? Want to buy some tools.
  45. Replies
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    1,643

    Some manufacturers made R22 units and charged...

    Some manufacturers made R22 units and charged with nitrogen. If I replace old one and install the nitrogen charged unit and charge in R22, do I cross the line or it is no problem? So far here in...
  46. Replies
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    2,149

    I remember United refrigeration carry Fieldpiece....

    I remember United refrigeration carry Fieldpiece. You can also try WWG totaline.
  47. Replies
    11
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    2,548

    Did you mean they change the cold collect box...

    Did you mean they change the cold collect box cover? Lennox has a service note on that. And another thing, the ac drain line is connected to the furnace drain line, Lennox requires seperate drain...
  48. Replies
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    904

    somebody must adjusted the pilot pressure before....

    somebody must adjusted the pilot pressure before. Check the pilot flame, if it is weak, replace the cross tube( the pilot tube).
  49. Replies
    3
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    1,106

    Thanks.

    Thanks.
  50. Replies
    3
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    1,106

    buffalo area hvac tool supplier

    May go there next monday, want to buy combustion analyzer. It is serveral hundreds dollar cheaper than here. Any good places recommend?
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