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Type: Posts; User: tyoungnj

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  1. Replies
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    Thanks just_opinion, It looks like that is a...

    Thanks just_opinion,

    It looks like that is a non-programmable 2-stage. I am looking for a 5/2 programmable single stage (even though the furnace is 2-stage, the Harmony handles the staging so the...
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    thanks for the advice. My contractor was not that...

    thanks for the advice. My contractor was not that knowledgeable - he basically just played with the PIAB jumpers on the Harmony board until he felt "it was about right". After he left I spent some...
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    As far as I can tell from the manual, there is no...

    As far as I can tell from the manual, there is no CPH setting on the thermostat.

    The equipment is properly sized, it's just that the temp range is so narrow that it takes very little time to...
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    thermostat recommendation?

    I just had a new new system installed (Lennox G61MPV, Harmony III zone controls). The installers put in White Rodgers 1F80-361 thermostats, which are basically fine for our needs. My one complaint is...
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    712

    do you mean concern about the coil freezing? ...

    do you mean concern about the coil freezing? what else can be done - is there a way to set the blower to a constant speed for A/C to avoid this?
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    wow - can you help me understand this a little...

    wow - can you help me understand this a little better? what are discharge air sensors? and does it even make sense to be using a two-stage variable speed furnace with 1-stage stats?
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    712

    Does this sound right?

    I am replacing my furnace/zone controls/dampers/t-stats, my contractor has proposed two options:

    1) Lennox G61MP furnace with LZP zone contols and 2 digital tstats. They tell me that the tstats...
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    yeah, I know it can be tough to comment on this...

    yeah, I know it can be tough to comment on this stuff when you can't actually see it. I can tell you that the zoning was not original to the house, it was added when an addition was put on. The first...
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    Thanks Doc - So without a bypass can I still...

    Thanks Doc -

    So without a bypass can I still do a 2-zone system with a V/S blower?
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    J - Thanks for the additional info. So far...

    J -

    Thanks for the additional info. So far I've had 3 HVAC contractors come in and none of the 3 have agreed on anything - sizing, zoning, v/s motor. They all say something different. One...
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    Thanks citywide, I am going with Honeywell...

    Thanks citywide,

    I am going with Honeywell programmable t-stats.

    On the zoning/variable speed issue, you're saying I could use a v/s blower if there is a barometric bypass? Can you provide...
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    I am in the process of replacing a gas furnace on...

    I am in the process of replacing a gas furnace on my forced hot-air system. It is a two-zone system, and the house is a ranch, approx 4000 sf, on a slab foundation.

    I wanted to go high-efficiency,...
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    I have an older (~20 year old) Lennox gas furnace...

    I have an older (~20 year old) Lennox gas furnace feeding a 2-zone forced hot air system. The furnace ignition is a retrofitted Honeywell S8660K, and the zoning system is a MasterTrol Mark V...
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