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  1. Replies
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    I assume the logic described in the Carrier...

    I assume the logic described in the Carrier patent must be similar to what other manufactuer's use in their "demand defrost" feature--if so, why do you think that Carrier sticks with time/temp. some...
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    OK--Carrier's patent app. appears to do what...

    OK--Carrier's patent app. appears to do what you've stated which appears to follow the documentation for the "Auto" setting in the Infinity Control for my HP.
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    Demand defrost on Carrier Heat Pumps

    Quick techie question:

    There have been a number of comments on various forums that Carrier Heat Pumps don't have demand defrost. After reading the docs. on my new Carrier Heat pump--25HNB6, 3...
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    Seems like it if you read enough of the...

    Seems like it if you read enough of the topics/posts. However, there are knowledgeable non-professionals that may have lessons-learned to share that are useful, even if it doesn't technically...
  5. What manufactuer/year of production was this...

    What manufactuer/year of production was this equipment? I ask, because my contractor says Carrier eqiupment is designed/certified for use with UV lights...
  6. It's not a bypass humidifier--it's a powered fan...

    It's not a bypass humidifier--it's a powered fan humidifier.
  7. The HP runs for extended periods, but doesn't...

    The HP runs for extended periods, but doesn't decrease the humidity much, if at all--perhaps it's the combustion air for the furnace/boiler?
  8. Do you have any recommendations for such a...

    Do you have any recommendations for such a company in the NoVA/DC/MD area?
  9. I've never lived in such a home or visited one...

    I've never lived in such a home or visited one either. In my present homes (one in NoVA and one in Midwest), extended periods where the Gas Furnace/Boiler runs will decrease the humidity into the...
  10. UV Lights to stop mold in new system--Effectiveness/Risks

    I had new Carrier Infinity system installed about a month ago (HP, Coil, Gas Furnace, Powered Fan Humidifier, Infinity Control--all Carrirer branded including the Powered Fan Humidifier). I'm...
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    I had the same furnace from the same time period...

    I had the same furnace from the same time period that did the same thing--ended up having to have the circuit board replaced--that fixed the problem--not a cheap repair though.
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    I went to Buderus' site--is there a particular...

    I went to Buderus' site--is there a particular model of the Gas Conventional Models that you're familiar with?
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    Re. piping--what we currently have is a cast-iron...

    Re. piping--what we currently have is a cast-iron pipe loop with scoop tees that transition to copper for each panel. The replacement panels are copper with fins--the orginal panels that we had...
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    What do you mean by primary/secdondary water...

    What do you mean by primary/secdondary water piping?
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    New Boiler Recommendation Requested

    We need a recommendation for a new boiler for an approx. 1200 sq. ft. single story ranch home in the Midwest (North Central Illinois). Other energy efficiency improvements have been completed (new...
  16. Nope--the system was 8 yrs and 11 months old, so...

    Nope--the system was 8 yrs and 11 months old, so like it or not, Trane was on the hook to fix or replace the system for another 1 yr and 1 month. If they can't provide parts for systems that they...
  17. Well, that's the problem isn't it--the end user...

    Well, that's the problem isn't it--the end user doesn't really care about "independent contractors", etc.--they just want the system to work and the manufactuer of the equipment is part of the...
  18. As stated above, pay now, pay later, pay...

    As stated above, pay now, pay later, pay regardless--given the system's problems since day 1, why would I spend $0.01 on this system (including 1.5X $'s for expedited shipping with no firm delivery...
  19. I didn't start this thread with the purpose of it...

    I didn't start this thread with the purpose of it turning into a Trane vs. XYZ festival. If a manufactuer can't provide parts in a timely manner, then warranties/extended warranties are worthless...
  20. Pesonally I would pay a premium for a premium...

    Pesonally I would pay a premium for a premium product with premium support regardless of who builds it and where it's built.

    However, what we end up doing is paying premium prices for so-so...
  21. A.--Yes, but 2+ weeks is a long time B.--Makes...

    A.--Yes, but 2+ weeks is a long time

    B.--Makes me wonder how they were going to "expedite" it and why it would cost $$$'s
  22. That's kind of the way I saw it--long-term,...

    That's kind of the way I saw it--long-term, efiiciency, restart the 10 year time clock, etc.

    Too soon to tell about Carrier--we will see.
  23. The only real rule with HVAC is pay now or pay...

    The only real rule with HVAC is pay now or pay later--either way, you will pay. I got a good deal (relatively speaking) by paying now.
  24. Not so....I've collected on several extended...

    Not so....I've collected on several extended warranties over the years (autos). This is the first time that I've run into the siutation where a repair is covered, but the availiability of the part...
  25. Yes and yes--10 year parts and labor and Infinty...

    Yes and yes--10 year parts and labor and Infinty Hybrid system.
  26. I wouldn't say I was angry, just dissapointed--I...

    I wouldn't say I was angry, just dissapointed--I thought Trane was a stand- up company and I had a very high end Trane system intalled in my parent's home in the Midwest 3 years ago. Given that I...
  27. Unfortunately, we weren't talking about a week,...

    Unfortunately, we weren't talking about a week, we were talking about 7-10 business days--i.e. at least 2 weeks, maybe more--no promises and also no promises on just how expedited the expdited...
  28. Not really out to proclaim one manufactuer is...

    Not really out to proclaim one manufactuer is better than another--if you read my initial post, I have had the Carrier system up and running for all of 1 week--time will tell.

    However, I think...
  29. I would tend to agree with you. My only real...

    I would tend to agree with you. My only real gripe at this point is Trane's inability to provide the compressor in anything close to a timely manner. The long sordid history of the system is a...
  30. Incorrect, Trane (The Trane field service rep....

    Incorrect, Trane (The Trane field service rep. and Customer relations) stated that the compressor had to come from the factory in Tenn. I have no idea of why that was the case and suspect they had...
  31. Actually, I approached the service company about...

    Actually, I approached the service company about replacing the system rather than waiting on Trane to come up with a compressor, not the other way around.
  32. Plenty--Trane's local rep. couldn't provide a...

    Plenty--Trane's local rep. couldn't provide a shipping date for the compressor, expedited or not. The service company did their best to get a straight answer from the distributor and Trane's rep.,...
  33. Now that's an interesting comment...we'll have to...

    Now that's an interesting comment...we'll have to agree to disagree...while they may have spent 4X $'s repairing my system the last 9 years, I spent several times that in lost days waiting for...
  34. Unlike automobiles where an extended warranty or...

    Unlike automobiles where an extended warranty or insurance poilcy often covers a rental/loaner car during an protracted repair event, not so with HVAC...so, in my opinion, from a consumer protection...
  35. My trusty Trane HP died!--a lesson in Extended Warranties

    Couple of weeks ago the compressor in my Trane XR12 HP died--had the service company come out and the diagnosis was a shorted compressor. I had the system installed in Oct. 2002 and so the entire...
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    Is the 2 deg. droop feature working?

    Is the 2 deg. droop feature working?
  37. Replies
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    I'd pay real $'s for an accurate flow chart for...

    I'd pay real $'s for an accurate flow chart for my HVAC equipment--very odd industry where so many things are so tightly held, even after you own the equipment.
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    Gave it a try with 346=0, upped the setpoint 5...

    Gave it a try with 346=0, upped the setpoint 5 deg. above room temp., let it run for 20 min., no upstage to Furnace. I don't think droop works the way I had originally assumed it would, but that's...
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    Haven't tried that, but according to Badtlc's...

    Haven't tried that, but according to Badtlc's posts, doesn't make any difference on his system. I'll give it a try this weekend. Do you have a gas furnace or electric as your Aux?
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    Thanks for the input--exactly what I've...

    Thanks for the input--exactly what I've noticed--re. the red LED--it does come on briefly when you do a factory reset and I've read that you can make it come on if you give the L terminal on the EIM...
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    VisionPro IAQ Oddities

    I and at least one other poster have a couple of questions pertaining to IAQ operation that have left us scratching our head(s). Equipment is 2-stage gas furnaces (different brands I think) and heat...
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    Do you get a red light when it is in EM mode?

    Do you get a red light when it is in EM mode?
  43. Replies
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    Tech. is OK, but on this IAQ project he has...

    Tech. is OK, but on this IAQ project he has punted at this point--I don't know about Aux Heat, but definitely no red light in EM mode, but the furnace runs as it should.
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    I have that one (I think--it's Rev....

    I have that one (I think--it's Rev. 68-02871)--the one that came in the box is 69-1816EFS-04--no mention of a red light in that one--anyway, no red light for me when the system is in EM mode. In EM...
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    My manual makes no mention of a red light in EM...

    My manual makes no mention of a red light in EM mode--the manual is Ver. 69-1815EFS-05
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    Which manual does it say there is a red light...

    Which manual does it say there is a red light when the system is in EM mode? When I put mine in EM mode, the display says Aux Heat, the furnace runs like it should, but no red light.
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    From my limited experience with the IAQ, changing...

    From my limited experience with the IAQ, changing the funace lockout temp. wouldn't matter since the furnace doesn't come on at all (except for defrosts)until the upstage timer runs out (mine is set...
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    Well, I bumped it from 70 to 75 and it's been...

    Well, I bumped it from 70 to 75 and it's been churning away now for 40 min on the HP--it's 33 deg. outside, and the Aux lockout is set to 45 deg--so with the way it's going it will time out in ...
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    I have yet to see it bring on the furnace even if...

    I have yet to see it bring on the furnace even if I raise the stat 8 deg. above room temp. I haven't experienced the 2 deg. temp. drop and I have seen it bring on the furnace after 60 min. to...
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    So with 345 set set to 2, 346 set to 60, 350 set...

    So with 345 set set to 2, 346 set to 60, 350 set to 25 and 360 set to 45 does this mean the room temperature has to drop by 2 deg. or more before Aux Heat comes on, or the difference between room...
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