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  1. Replies
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    Hi Joe-- My current setup consists of three...

    Hi Joe--

    My current setup consists of three Signature Stats and three zones, connected to an AirBoss panel. It's not that I need 3 signature stats, but that I have them already. At the moment,...
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    Thanks totaleclipse! I am really leaning towards...

    Thanks totaleclipse! I am really leaning towards this...

    Did you ever do this with Lennox Sig Stats? If so, what did you do with the DEHUM signal? I am thinking it might make sense to ignore...
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    my house--72 degrees, 55% humidity. I live in a...

    my house--72 degrees, 55% humidity. I live in a 4000 sq ft house, two floors, and three zones. 5 ton xc21 condenser, 61V variable speed furnace...

    LJM
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    really! why is that? I find that it is nearly...

    really! why is that? I find that it is nearly impossible for me to get my home < 58% RH without severely over-cooling (in central nj).

    LJM
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    That's a shame! I was also looking at the Lennox...

    That's a shame! I was also looking at the Lennox Humiditrol, but without the DEHUM signal, I don't see how that is going to work with the Harmony III zoning...

    LJM
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    Thanks Joe! My goal is to remove the barometric...

    Thanks Joe! My goal is to remove the barometric pressure bypass completely. Also, I believe (maybe mistakenly!) that I will get better dehumidification control, because all three Signature stats...
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    That's what I am hoping for! This could...

    That's what I am hoping for! This could potentially be a good solution...
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    Hi All-- Has anybody here tried using the...

    Hi All--

    Has anybody here tried using the Arzel Zone Interface panel with the Lennox Harmony III zoning system? It appears that this allows you to use the Harmony III controller with Arzel's...
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    Hi All-- this is the continuing saga of trying...

    Hi All--

    this is the continuing saga of trying to get my new HVAC system (Lennox G61V, 5-ton XC21, 3 zone Arzel, 3 Lennox signature stats) working properly.

    The latest tweak by the contractor...
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    Hi All-- Question for the Arzel & Lennox...

    Hi All--

    Question for the Arzel & Lennox experts. My setup consists of three zones, three 2-stage lennox signature stats, and a Lennox 2-speed compressor & VS furnace. My questions are as...
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    Hi all-- A question for the experts. I have...

    Hi all--

    A question for the experts. I have an aprilaire humidifier installed on the furnace (aprilaire 600) and arzel zoning. one feature of the aprilaire 600 is that it will provide...
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    can the ultraire unit be used if arzel zoning is...

    can the ultraire unit be used if arzel zoning is installed? seems to me that it would have to control the dampers somehow so that dehumidified air can circulate even when there is no thermostat...
  13. that is the situation exactly. the salesman was...

    that is the situation exactly. the salesman was quite good--ex lucent engineer, second career. did the manual J, etc. The installers were OK when it came to running thermostat wire and putting the...
  14. Hi All-- for anybody following this thread, I...

    Hi All--

    for anybody following this thread, I want to provide an update.

    first of all--thanks Joe R. from arzel for your advice and for working directly with the HVAC tech on this.

    The...
  15. My contractor hasn't contacted me today. Can you...

    My contractor hasn't contacted me today. Can you please be a little more specific on how Arzel handles what you mentioned; i.e., preventing one zone alone from calling the second stage and how to...
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    turns out the damn condenser tripped my circuit...

    turns out the damn condenser tripped my circuit breaker--and it isn't even a particularly hot day out (81 degrees). is this normal? we were running the dryer at the same time, but I have a big...
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    thanks arc8! I am i central new jersey. where...

    thanks arc8! I am i central new jersey. where are you?

    to add insult to injury, now the condenser (again, a brand new unit purchased last week, top of the line Lennox) won't turn on even though...
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    Thanks for the replies! The rest of the...

    Thanks for the replies!

    The rest of the configuration is as follows:

    Three zones--

    Zone1: first floor (app 1500 sq ft)

    Zone2: second floor minus master bedroom (app 1100 sq ft)
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    I just dug out the paperwork from the HVAC...

    I just dug out the paperwork from the HVAC contractor, which includes the printed Manual J report. The assumptions were an indoor temperature of 75 in the summer with indoor relative humidity of 50%....
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    This forum is very, very informative!!! My...

    This forum is very, very informative!!! My thanks to all the pros who participate.

    Question to the pros--when doing a Manual J calculation, is it customary to round up or down when the final...
  21. hi wideawake-- no, not to my knowledge. why...

    hi wideawake--

    no, not to my knowledge. why might that be a factor?

    thanks in advance!

    LJM
  22. This first photo is the bypass damper (I am...

    This first photo is the bypass damper (I am laying on the floor looking upwards at the back of the furnace):
    ...
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    I am posting photos in the original thread...

    I am posting photos in the original thread (Lennox and Arzel Zoning)

    thanks!
  24. thanks heatpumpguru! I have sent an email to...

    thanks heatpumpguru! I have sent an email to arzel tech support to try to get some info on this. I think the fellow is a regular contributer here.

    LJM
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    A quick question for you experts out there. In...

    A quick question for you experts out there. In addition to the problems I am having with the arzel zoning & bypass damper (previous post), I have noticed that when run my hands along the air handler...
  26. well, the HVAC tech came by and didn't know his...

    well, the HVAC tech came by and didn't know his as fom his elbow (pardon my french). didn't believe me at first about the short cycling, and didn't even believe me when I showed him the compressor...
  27. i activated the MPS mode on the arzel panel as...

    i activated the MPS mode on the arzel panel as suggested, but still the unit is short cycling. I have an HVAC tech coming by in a couple of hours. My gut instinct is that the bypass damper has to...
  28. ok--giving it a try. thanks for the advice. ...

    ok--giving it a try. thanks for the advice.

    ljm
  29. agreed. my concern is that the equipment may be...

    agreed. my concern is that the equipment may be short cycling all weekend (two minutes on, 4 minutes off) and that this will damage the new equipment. is this possible? thanks for your replies.
    ...
  30. so am I. it wasn't there the first night we ran...

    so am I. it wasn't there the first night we ran the system and the system worked fine; however, the installers came back to finish the job today and there it was. and now the system short cycles...
  31. Thank you. everything i have read suggests that...

    Thank you. everything i have read suggests that the bypass damper needs to be located at teast a few feet from the air handler. the fact that the bypass damper is sitting right on top of the...
  32. Help--I had a local contractor install a Lennox...

    Help--I had a local contractor install a Lennox 2-stage A/C (XC21), a new Lennox variable speed furnace (G61V), and an Arzel three zone system. The install was finished today (took about a week),...
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