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  1. Bazooka: Yes, that is what he found loose and ...

    Bazooka:

    Yes, that is what he found loose and tightened just a little bit since he said they can break if you over do it.

    They did not put new ones in when they replaced the coil since my...
  2. BeBeerme: So hearing what you are saying, I...

    BeBeerme:

    So hearing what you are saying, I would suspect since the 410a is a higher pressure system that most Schraders have some degree of leak. I'll stick with my new brass caps, instead of the...
  3. No, after the coil was replaced, I notice...

    No, after the coil was replaced, I notice recurrent oil around on one the plastic caps that was on tight. I since replaced it with a brass cap and no more oil was seen.

    But, could tell the AC was...
  4. UPDATE: So the heat is on here in S.C! The...

    UPDATE:

    So the heat is on here in S.C! The difference between the intake and output at the register was only 13-14 degrees, and it took much longer than expected to cool the house at night (1 hr...
  5. Yes, once our usual hot and humid SC summer kicks...

    Yes, once our usual hot and humid SC summer kicks in, I'll take those measurements. The brass cap I have is circular with a neoprene O ring but as suggested above will likely have the valve replaced...
  6. Yes, that's my next step... call a pro out to...

    Yes, that's my next step... call a pro out to replace it.
  7. Bazooka Joe: Never saw bubbles but what I...

    Bazooka Joe:

    Never saw bubbles but what I noticed was after running the AC (infrequently since not too hot yet) there would be a small amount of oil on the outside of the plastic cap. Just enough...
  8. You can run a tire 1-2 psi above or below the...

    You can run a tire 1-2 psi above or below the recommended setting and not notice much difference. You can run a car 1/2 qt low on oil and it will run fine. So what about a heat pump? At what level of...
  9. Heat Pump Operations Question...How low can you go?

    I've been wondering...how much 410a can leak out of a heat pump system before a homeowner would notice that it is not heating or cooling correctly? Can heat pumps work with a certain level of reduced...
  10. Ok, thanks! We will have to see how this summer...

    Ok, thanks! We will have to see how this summer goes!
  11. Another question...if you are low on refrigerant,...

    Another question...if you are low on refrigerant, in AC mode that makes the indoor coil colder than it should be (and the coil will freezes up), so would that make it seem like the air from the...
  12. Our ducts run in the hot attic which was 98F when...

    Our ducts run in the hot attic which was 98F when I took my measurements. So if duct loss increases supply air temp as you say by ~5F, then my real difference between in & out temp may be closer to...
  13. Last summer it was really humid outside and the...

    Last summer it was really humid outside and the house was comfortable. But over the winter (we have a heat pump) we needed a new indoor coil (now all aluminum) because of a leak. System was checked...
  14. That's great. I'll keep a watch on the indoor...

    That's great. I'll keep a watch on the indoor humidity this summer and see how close we get to 50% with the AC on. Thanks
  15. Question on Indoor Relative Humidity with AC.

    We moved to SC and last summer it got really humid! Not looking forward to this summer.

    We only have AC. What indoor RH would be considered good with running the AC alone? How does one decide...
  16. Great to hear..thanks. I'll check it with soap...

    Great to hear..thanks. I'll check it with soap and just keep an eye on it.
  17. Oil on Schrader valve after 410a refill of Heat Pump. What does it mean?

    So our heat pump had a leak this winter and the indoor coil was replaced.

    During that process the system was refilled with new 410a.

    About a month later I took a look at the Schrader valve on...
  18. Well I set it to the higher setting just to see...

    Well I set it to the higher setting just to see what would happen. At 15% above the 350 CFM/ton (normal setting)there was an annoying high pitched sound from the main intake right off the living...
  19. Ok, thanks. That makes a lot of sense about...

    Ok, thanks. That makes a lot of sense about higher SEER equipment. I may try this summer to adjust to 400 and see if it can still handle the South Carolina humidity.
  20. Why is the Factory Default CFM per Ton low on a Bryant Air Handler?

    Sorry for more questions, but being new to having a Heat Pump trying to get a better understanding of these systems...

    We have a 10 year old Bryant FV4C air handler. Everything I've read states...
  21. Just read up on Delta T and now I understand. ...

    Just read up on Delta T and now I understand.

    Is there a place one can find the expected Delta T for a specific heat pump or are there too many variables for a manufacture to publish such numbers?
  22. So for us uneducated folks, that's a yes?

    So for us uneducated folks, that's a yes?
  23. Would changing to a less restrictive filter on a heat pump reduce temps at register?

    Sorry for all the questions but always appreciate your input.

    Carrier heat pump....

    Recently change the filters (have 2 intakes) to very unrestrictive fiberglass ones. Since then I've noticed...
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    ok thanks!

    ok thanks!
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    Good idea. I guess I could also check the temp of...

    Good idea. I guess I could also check the temp of the air from the registers during defrost too. What do you think the temp would be if the aux heat is NOT on during defrost??
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    No issue, just trying to save some cash! ...

    No issue, just trying to save some cash!

    Since we do not get really cold here in Myrtle Beach I am trying to find a way to minimize use of the Aux heat. Instead of buying a new thermostat that...
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    So are you guys saying the signal for aux heat...

    So are you guys saying the signal for aux heat during defrost comes from the heat pump, and the signal for aux heat during heating comes from the thermostat?
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    Aux Heat Quick Question!

    Question for the experts here....If you have a heat pump with electric heat back up and you set the thermostat to 1 heat/1 cool (instead of 2 heat/1 cool) will the Aux electric heat still come on...
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    Interesting video. Thanks. Fiberglass had one of...

    Interesting video. Thanks. Fiberglass had one of the best airflows but worst ability to filter, which I would have expected looking at it. At this point I'm banking on better air flow to not stress...
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    Funny you should say that. When our model was...

    Funny you should say that. When our model was first built (Ryland homes) they had only one intake but by the time our home was built they added a second intake in the master bedroom.
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    Update: Switched the 2 intakes (one in main room...

    Update: Switched the 2 intakes (one in main room and other in master bedroom) from Filtrate level 4 to EZ flow fiberglass filters(made by Flanders) which supposedly flow air better. What a...
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    As a homeowner, we have started using reviews on...

    As a homeowner, we have started using reviews on Google to pick who we want to call (for many services). This has been especially useful since we are new to SC. But, no matter what service we call...
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    Yes, they were noted on the Carrier web site as...

    Yes, they were noted on the Carrier web site as authorized dealers. We picked them since the unit was still under warrantee, and the new indoor coil & related parts were covered (but not labor of...
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    Maybe for smart Techs like you guys!

    Maybe for smart Techs like you guys!
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    Update: Success! This morning it was 40F out with...

    Update: Success! This morning it was 40F out with 90% humidity. I turned up the temp in the house to keep the heat pump running for a good 60 min. Right on time it went into defrost and completely...
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    Maybe guessing from a professionals standpoint...

    Maybe guessing from a professionals standpoint but I did a lot (for a homeowner) of reading and testing of the board to come up with my conclusion.

    To answer Joey..We first called the Tech when I...
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    No, just assumed it was bad based on my testing...

    No, just assumed it was bad based on my testing of the board when it was freezing out. Used deductive reasoning.
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    That is exactly what happened. But from...

    That is exactly what happened.

    But from information you guys gave (my other threads-Thank You!), internet reading, and my own testing of the defrost board (will avoid details since I know this is...
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    That is exactly what I have seen. The reason...

    That is exactly what I have seen.

    The reason I want to see it in action is to see if it is really working now. The defrost was not working all winter (would start what seemed like defrost but...
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    Ok thanks. We are new to heat pumps and I am...

    Ok thanks. We are new to heat pumps and I am trying to predict when to expect to see a defrost. It is my understanding that the outdoor coil runs ~25F below the outdoor temp, and DFT closes when the...
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    Question on Defrost for Heat Pump

    We have 10 year old basic Carrier Heat Pump.

    I know that to get a full defrost you need to have the time up on the defrost board and the coil temp probe must be cold enough to close the DFT...
  42. The AH is a single 60 amp breaker that takes up 2...

    The AH is a single 60 amp breaker that takes up 2 slots. When I turn it off the fan in the air handler does not turn on. Also, with that breaker off when there is a call for heat the heat pump does...
  43. I'll keep that in mind. Doubt ours was prewired...

    I'll keep that in mind. Doubt ours was prewired for sensors. Very basic system.
  44. AH is 60 and the AC is 40. I'll mention to the...

    AH is 60 and the AC is 40.

    I'll mention to the Tech about the "conductors". I know this is not a DYI site but can you tell me what does "enough conductors" mean for my own understanding?

    Thanks
  45. Thanks..just checked and our electric panel has...

    Thanks..just checked and our electric panel has only AC (which is the heat pump) and AH ( which is assume is the air handler). Nothing just for the electric back up.

    I agree with Poodle Head....
  46. thanks for all the advice. In your opinion, is it...

    thanks for all the advice. In your opinion, is it best to have the Tech install a switch in the heat pump or just get an updated thermostat? One approach better than the other?
  47. Nice thermostat. Thanks!

    Nice thermostat. Thanks!
  48. Can you suggest a thermostat that would do this?...

    Can you suggest a thermostat that would do this? I've looked and even the new wifi digital ones don't mention lockout as a feature. The thermostat I have now is a Honeywell TH6000.
  49. Can a Tech add a Lockout for the Aux Electric Heat?

    We have a basic Carrier Heat Pump that is 10 years old (Model 25HCC5) that recently had its defective Aux Electric Heat unit replaced. Since then electric use has gone up slightly. (the Aux heat...
  50. Final Update...Heater element looked fine so must...

    Final Update...Heater element looked fine so must have been its electronics that went bad. New heating element in. Now I get a boost in temps from the register at times when the aux heat comes on (no...
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