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Type: Posts; User: Carry On

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  1. Replies
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    VS Air Handler

    In a VS air handler with a single speed heat pump, does the blower operate at the same top CFM in heating and cooling?
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    Thanks. Didn't mean to be confusing. When I...

    Thanks. Didn't mean to be confusing.

    When I check the Trane site, it is not clear which units are scroll compressors, except, I think, it's variable speed top end condensing unit. At this point,...
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    It would be a 5T/410, replacing a 5T/R22. I am...

    It would be a 5T/410, replacing a 5T/R22. I am not looking for the highest SEER but the most reliable. In the past, I've read of EMI and circuit board problems with VS air handlers (they are less...
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    Line Sets

    Does Trane require a new line set for the warranty? My line set is 3/4 suction and 3/8 liquid? I'd be replacing an R22 5T with a 410 5T.

    Can it be cleaned with RX11 without voiding the warranty?...
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    New 5Ton HP/AC/Trane or Carrier?

    The time has come to replace the 5T Carrier HP, about 9 years old, 10 SEER, due to leaks in the evaporator coil. Thought about replacing it a few years ago but put about a grand in repairs because...
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    The system continues to cycle normally. I doubt...

    The system continues to cycle normally. I doubt that a technician could find anything unless I can repeat problem. I guess it's possible that the condensor contactor hung up, but odd that it only...
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    How much ice would form on the evaporator without...

    How much ice would form on the evaporator without the AH running? I suspect that when the thermostat again called for heat within 20 minutes, the condensing unit and AH would have synchronized. ...
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    Would the compressor have shut down automatically...

    Would the compressor have shut down automatically without the AH operating?
  9. Replies
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    New contactor and fan on the condensing unit in...

    New contactor and fan on the condensing unit in January.

    Damdest thing.

    As said before, what would have happened if I was not around, although I suppose if I wasn't the temperature setting...
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    It's not a new install. The system has been...

    It's not a new install. The system has been working fine this winter in HP mode and this summer in cool. The manual fan control works too.

    It seemed like the stat hung up. Has that happened...
  11. Replies
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    Odd fan/compressor sequence?

    Carrier 5T Heatpump system with a Focus Pro 5000 thermostat.

    While the AC was operating, I raised the temperature 2 degrees. A few minutes the AH fan shut down (after the normal delay), but the...
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    Pleaded filters reduce airflow to much at high...

    Pleaded filters reduce airflow to much at high CFMs for air conditioning. I can see them bow-in and hear them drop sometimes in the filter box (house has three) when the fan goes off. I suppose a...
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    Can you have a TXV on the AH for cooling and a...

    Can you have a TXV on the AH for cooling and a fixed orfice or piston on the condensor? I would think so.
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    Thanks. If it's a HP with piston-orifices (no...

    Thanks.

    If it's a HP with piston-orifices (no TXVs) can a TXV be added to the condensor as well? It's presently a 10SEER system. I understand that a new AH would have be 13 SEER or higher.
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    Parts for R22 Systems in 2010

    After 1/2010 R22 systems cannot be manufactured for sale in the USA, but parts will be available.

    Will it be possible to buy a complete R22 air handler rather than just the A-coil (a choice...
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    That's a good setting for all electric heat. ...

    That's a good setting for all electric heat.

    As long as the heat pump can maintain the temperature evening staying on you want you are heating for less that using all electric or aux. heat.

    But...
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    Gas heat is less complicated, easier to maintain,...

    Gas heat is less complicated, easier to maintain, and infinitly more reliable. Had it for decades when we lived in CT and knew many people who switched from oil to gas for the reliability alone.
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    When you enter the setup for each setting, you...

    When you enter the setup for each setting, you can scroll through the numbers that are available. 3 is a good start. I think all the numbers from 1 to 9 or 14 (depending on what is being set up)...
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    Forget that the installation manual says that. ...

    Forget that the installation manual says that. It doesn't have to be set to 9. Set both to 3. Also check that CPH for the compressor stage is 3, which recommended. The number merely determines...
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    Change the CPH for e-heat alone (emergency heat)...

    Change the CPH for e-heat alone (emergency heat) to 3 and do the same for the aux. heat CPH setting. That way they will not cycle too rapidly. These setting are accessed through the manual in the...
  21. Thread: Accumulators

    by Carry On
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    Sorry: I meant to say "accumulator" not...

    Sorry: I meant to say "accumulator" not "receiver" in my question.
  22. Thread: Accumulators

    by Carry On
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    Heat pumps in Florida

    That's the point I've made to my tech. when I question all the complication of a HP for a place like central-south Florida. A location with rather consistent temps get the most out of a HP. All he...
  23. Thread: Accumulators

    by Carry On
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    2,074

    I've thought that for a long time. When I say...

    I've thought that for a long time. When I say that to my tech. he looks at me crossed eyed, doesn't understand.

    A previous home near West Palm had two ACs and resistance heating. Heating in the...
  24. Thread: Accumulators

    by Carry On
    Replies
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    Yes this an excellent observation and points out...

    Yes this an excellent observation and points out one of my criticisms of HPs. They can save money if running right but are complicated and the average homeowner has not idea how well they are...
  25. Thread: Accumulators

    by Carry On
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    That makes sense and I suspected cost can be a...

    That makes sense and I suspected cost can be a factor.

    But would a HP have more refrigerant in the system than an equal AC --both properly charged? How much refrig. is stored as liquid in the...
  26. Thread: Accumulators

    by Carry On
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    If straight ACs would be overcharged with an...

    If straight ACs would be overcharged with an accumulator why aren't HP's in AC mode also overcharged? In AC mode both are the same, in essence?

    Thanks.
  27. Thread: Accumulators

    by Carry On
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    Why?

    Why?
  28. Thread: Accumulators

    by Carry On
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    So would most pure AC's benefit from one but they...

    So would most pure AC's benefit from one but they are left out to keep the initial cost down?
  29. Thread: Accumulators

    by Carry On
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    Accumulator benefit nd preventing rust

    I meant "receiver" (sorry), which stores refrigerant since an auto compressor can't, but provides a reserve.

    I was not suggesting that a leak should not be fixed but wondering if the same leak,...
  30. Thread: Accumulators

    by Carry On
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    2,074

    Accumulators

    I have had a number of straight HVACs, none of which had an accumulator. Now have a heat pump with one, that was recently replaced (rusted out).

    I understand that accumulators are needed in...
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    I have such an option on a Honeywell t-stat....

    I have such an option on a Honeywell t-stat. setup. It defeats the automatic operation of the heat strips when the temperature difference is more that 2 degrees. The t-stat. will bring the stirps...
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    We're in Florida and as you confirmed, if the AC...

    We're in Florida and as you confirmed, if the AC runs alot, which is does because of heat loading from the sun even if its relatively cool for Florida (in the 80s), VS does not offer much benefit...
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    A scroll compressor, also known as scroll pump...

    A scroll compressor, also known as scroll pump and scroll vacuum pump, uses two interleaved spiral-like vanes to pump.
  34. Replies
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    We have a drone or vibration in the gas line(heat...

    We have a drone or vibration in the gas line(heat mode) with a heat pump (scrowl) that starts low and gets louder. I believe a factor is that in heat mode, the gas line goes directly to the...
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    Thanks. So far what you said is what I've heard...

    Thanks. So far what you said is what I've heard on VS.

    We have a 5 ton 10 SEER now and would get a 13 or 14, also 5 ton. (Can't go bigger and the 5 ton does the job: cools but does not over...
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    Does that mean (the higher coil temperature with...

    Does that mean (the higher coil temperature with higher SEER) that all higher SEER units operate at lower fan speeds, fixed or variable?

    On humidity: Does a VS make sense more in moderate...
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    All the advice here has been "great". Thanks. I...

    All the advice here has been "great". Thanks. I guess we can wait to see how the unit holds up. If it gives us trouble between now and 2010, we can decide whether to stay with R22 or switch to 410...
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    Thanks skippedover for a thorough answer. I want...

    Thanks skippedover for a thorough answer. I want to avoid changing line sets and everything I've read says that the existing lines can be cleaned with RX11. Why to do I want to avoid that change? ...
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    The Future for R22 Heat Pumps?

    After January 2010, complete R22 systems will not longer be sold.

    But (ignoring the cost of R22), how easy will it be to get parts for installed
    R22 systems after that? (In addition, I...
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