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  1. Phila. Suburbs Recommendation for AC Maintenance Co.

    Can anyone recomend a company to do yearly maintenance work on our system (Carrier Infinity).

    I want a company that is knowledgeable on Carrier Infinity zoned systems (not a company that just says...
  2. Really? I thought the warranty was for the...

    Really? I thought the warranty was for the furnace and condenser units only.

    Cool. I'll check -- my equipment is only 2.5 years old.

    Will I lose my settings (such as set back schedules) if...
  3. Carrier Infinity Thermostat (Zoning) has Broken Button

    The little button on the upper left-hand side of my Carrier Infinity Thermostat (the zone button) is broken.

    I have this model Infinity Thermostat: SYSTXCCUIZ01
    ...
  4. So does that mean a fan powered unit can humidify...

    So does that mean a fan powered unit can humidify even when the furnace itself is not running?
  5. In the 20s. At night down to the teens.

    In the 20s. At night down to the teens.
  6. Which type of humidfier for Carrier Infinity -- bypass or fan powered?

    My humidity level has been at 25% during the cold spell we have had lately. So I'm considering a humidifer for my carrier infinity zoned system.

    Based on some airflow issues with the small...
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    The contractor is not being 100% truthful. They...

    The contractor is not being 100% truthful. They don't WANT you to access the advanced settings, because they think home-owners are idiots. But as a techno geek myself, I want to see all. I have a...
  8. I tried, but I believe that with carrier zoning,...

    I tried, but I believe that with carrier zoning, that runs the fan in every zone -- so I don't get much air in the small basement zone from just the fan.
  9. T-stat is infinity smart sensor (which is what...

    T-stat is infinity smart sensor (which is what carrier uses for zoning), which is connected to the main infinity thermostat in the dining room.

    It displays the temp in the room, but the humidity...
  10. Via the carrier zoning, I can set the airflow...

    Via the carrier zoning, I can set the airflow limits to help with that. I set it to medium (instead of the default of high) for the basement zone.

    Yes, the chairs are berklines.
  11. We have zoning in there now (the basement is all...

    We have zoning in there now (the basement is all one zone now, and the t-stat is in the theater room).

    But I still feel the air is too heavy/stagnant. Temp holds fine though. I just think it...
  12. So what would help with what feels like stagnate,...

    So what would help with what feels like stagnate, heavy air in that room (compared to other rooms on the same floor).

    In other words, although the temperature is held at the set point, the air...
  13. I'm having them come out next week to double the...

    I'm having them come out next week to double the size of the return grill that you see pictured on the first page in this thread.

    Should that help?
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    Well I have one zone for each floor, so it won't...

    Well I have one zone for each floor, so it won't help me there. But I do get some unevenness WITHIN zones. Maybe it will help with that?

    I also get some stuffiness in my theater room, because...
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    What does running fan in low 24/7 do?

    What is the reason for running the fan on low during the heating season?

    What is the benefit?

    Also, if you have 3 zones, do you need to set the fan on low for each zone individually -- or does...
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    From what I've seen, they do a decent job for a...

    From what I've seen, they do a decent job for a builder, when everything is set up to be similar. Which is probably what they prefer.

    They probably don't like dealing with homeowners directly...
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    Glad to hear that. The installer is an...

    Glad to hear that. The installer is an authorized Carrier dealer.
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    The builder hired the company that installed my...

    The builder hired the company that installed my system. Two stage was not one of the options for the a/c unit -- I did the highest level upgrade for HVAC that was on the options sheet. But if I...
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    Thanks. I'll have to see what happens in the...

    Thanks. I'll have to see what happens in the winter then. As the heat will likely be running more in the basement, than the other zones. At the "low" airflow setting in the basement, that might...
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    I knew not to listen to him when I saw the 24/48...

    I knew not to listen to him when I saw the 24/48 hours. I've known since I bought my house that it runs every 24 hours at 1:00 PM (and can't be changed on my version of the Infinity stat).

    It...
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    It does the duct assessment every 24 hours -- at...

    It does the duct assessment every 24 hours -- at 1:00 PM.

    I set the airflow to "low" for the basement -- as I want the theater room quiet. Main floor is max and bedrooms are on "high" (the...
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    Interestingly, I just did a test and set only the...

    Interestingly, I just did a test and set only the smallest zone (basement) to call for cooling. With this test, I found that the system opens the dampers (at least partially) for both of the other...
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    Static for the main zone alone is .75 So is...

    Static for the main zone alone is .75

    So is that bad? That's at 1750 CFM.

    I also set my zone airflow limits to max (from the default of "high") for the main zone. So that may help static...
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    Cooling is .2 or 2.x ? I never see it as low...

    Cooling is .2 or 2.x ? I never see it as low as .2 ?????
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    I know how to go to the advanced menu and look at...

    I know how to go to the advanced menu and look at all faults and warnings for the entire history of the sytem.

    I see nothing re: static pressure -- except when system was first brought on line 1.5...
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    Yeah, with all zones (based on the A/C checkout...

    Yeah, with all zones (based on the A/C checkout test that you can do via the Infinity thermostat) its around .55 or .56 (sometimes less).

    When one zone calls it gets over 1.1. No big deal for...
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    Is it really really bad for it to be above .75...

    Is it really really bad for it to be above .75 when only one zone is calling? What is all the down-side of this?

    The thing cools nicely and seems to run fine. I wouldn't know that above a...
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    Carrier Infinity Zoning -- Static Pressure?

    I have a carrier infinity variable speed furnace, a single stage comfort series a/c unit; and we just added the basement as its own zone. Previously, the bedroom was 1 zone, and the main...
  29. Haven't tried yet, as I want to check noise by...

    Haven't tried yet, as I want to check noise by having someone at the stat changing from high to max, while I'm in the bedroom. Haven't had my helper around yet.

    Just curious -- if the control...
  30. What you say makes sense. But I thought I read...

    What you say makes sense. But I thought I read that carrier infinity zoning typically will have about 10% of leakage. Since I'm seeing 8 to 9% (based on duct assessment each day)-- can I really...
  31. I generally buy only the best. I am the only one...

    I generally buy only the best. I am the only one in my neighborhood who upgraded the HVAC as I did. My next door neighbor wishes he did zoning as I did -- as it is hot on his bedroom level unless...
  32. Just so it doesn't get lost, I'm reposting my...

    Just so it doesn't get lost, I'm reposting my last questions on the topic at hand:


    Originally Posted by dash
    Yawn!No,actually was out on the boat,sunset ,wife,bottle of wine,ec.,etc..

    ...
  33. The zoning module attached to my Infinity...

    The zoning module attached to my Infinity variable speed furnace can handle up to 4 zones, via electronically controlled dampers.
  34. Done. Any advice on the rest of my post?

    Done. Any advice on the rest of my post?
  35. Its definitely leakage. Cause when the air blows...

    Its definitely leakage. Cause when the air blows in the other zones, I feel a small amount of cool air coming from the registers in the basement.

    So lowering the other zones from "high" won't...
  36. I know there are carrier experts out there. ...

    I know there are carrier experts out there. Anyone?
  37. Carrier Infinity Zoning -- "airflow limits" parameter in Zoning setup

    I have 3 zones off of one Carrier Infinity system (Infinity 96 furnace paired with a Comfort Series single stage AC unit). Zones are 1 for each floor (3 dampers) -- basement; main floor and...
  38. Well I was right -- that return wasn't doing...

    Well I was right -- that return wasn't doing anything.

    They messed up and closed the connection between that wall cavity and the return duct when they drywalled the room. They are coming back out...
  39. Had the HVAC contractor out today. He...

    Had the HVAC contractor out today. He determined that they framed/drywalled over the connection from that cavity return to the actual return duct (which is luckily in unfinished space behind the...
  40. Above the drop ceiling is all the duct work for...

    Above the drop ceiling is all the duct work for the house -- 3 trunk lines (one for the 2nd floor; one for the basement/main floor combined and one return).

    There are two small supply ducts in the...
  41. I will likely be asking them, down the road, to...

    I will likely be asking them, down the road, to make the theater its own zone (I have Carrier Infinity zoning). So they would need to make a new zone for the theater room. I believe you can have 8...
  42. Surround sound is handled via an Onkyo TX-SR805...

    Surround sound is handled via an Onkyo TX-SR805 receiver.
  43. Do you mean projector? That's an Epson Pro...

    Do you mean projector? That's an Epson Pro Cinema 810.
  44. Well that's why I'm here -- it is the only return...

    Well that's why I'm here -- it is the only return in that room. The HVAC company (Kenrich Mechanical) that built this is coming out next week to look at "re-balancing" the room.

    I want to know...
  45. The surround speaker wires were on the outside...

    The surround speaker wires were on the outside part of the right stud or on the right-side stud (didn't penetrate that cavity I believe). If they are inside the stud -- it would be like the romex --...
  46. Single square of double ply Charmin -- but stuck...

    Single square of double ply Charmin -- but stuck to all other return grills.

    You can see the grill here as it looks in the finished room (left side of picture):
    ...
  47. I dont' think the room ever really pressurizes. ...

    I dont' think the room ever really pressurizes.

    Its probably dribbling out through the drop ceiling. Or dribbling through that return.

    But that return doesn't suck very hard at all.

    No one...
  48. The quantity of air from the two supply vents in...

    The quantity of air from the two supply vents in the drop ceiling remains the same whether the door is open or shut.

    Note that this is a sealed room with the door shut -- it is a theater room. ...
  49. Should tissue stick to return when air is running?

    If I hold a piece of tissue up to a return when the air/heat is running, it sticks to it -- gets sucked to the grill.

    One room it doesnt do this.

    This room doesn't seem to heat as well as the...
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    My infinity system shows two humidy settings --...

    My infinity system shows two humidy settings -- one for cooling humidity and one for heating humidity.

    The cooling humidity level only goes down to about 42 I think. I think 45 is the mid-point...
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