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  1. Replies
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    Not sure how much refrigerant he put in, but he...

    Not sure how much refrigerant he put in, but he had the r410 tank hooked up for about 15 mins.
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    Thanks so much guys. This is exactly the kind of...

    Thanks so much guys. This is exactly the kind of info I was looking for. The contractor will be here in about an hour. I'll post the outcome.
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    XP16 is 2 stage, but from what I've read - below...

    XP16 is 2 stage, but from what I've read - below 40 ambient, it only runs at high capacity, regardless of what t-stat calls for. My air handler is a lennox CB26 3T (based on the datasheet it can move...
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    Typical temp raise with HP?

    I'm in Raleigh, NC and it's unusually cold (23 degrees right now). My house is 4 months old, very well insulated (energy star cert). The upstairs is about 1700 sq ft. I have a lennox XP-16 - 3 ton...
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    Freakin adaptive recovery

    Can it be disabled on a Pro 4000? I have the downstairs set to 65 at night, but in an effort to acheive the night time setpoint of 65, it appears to stop heating at about 8pm.
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    Thanks for the hint, I checked my manual and...

    Thanks for the hint, I checked my manual and found that for my 3 ton blower it's 249 watts (should be about 1.13 amps at 220). Based on my energy cost of 10.2 cents / kwh that means it'll cost me...
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    Thats pretty amazing. Why don't all blowers use...

    Thats pretty amazing. Why don't all blowers use the VS motors? cost?
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    1,611

    It's definitely not variable speed. That means...

    It's definitely not variable speed. That means its PSC?
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    Running the fan all night did help equalize the...

    Running the fan all night did help equalize the temperature upstairs. I see the pros and cons of leaving it running all the time. I'd rather run it all the time because I want to, not because I have...
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    It's worth a shot. If I start now it should be...

    It's worth a shot. If I start now it should be same temp everywhere by morning.
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    I checked and all filters/returns appear to have...

    I checked and all filters/returns appear to have pretty good airflow (better than I would've expected). Furnace filter is clean too.
    Grill filters are super cheap blue filters, furnace filter is...
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    1,611

    I checked the furnace filter about a week ago,...

    I checked the furnace filter about a week ago, but i'll definitely check again tonight. These are all great things to check. I'll do the kleenex test first, then I'll do it again with the furnace...
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    MBR is above living/dining room and is cooler...

    MBR is above living/dining room and is cooler than bonus room (above garage). I have not tried the kleenex test, I will tonight. Upstairs is it's own zone and there are 2 returns, I just replaced...
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    1,611

    I've been up in the attic more times than I'd...

    I've been up in the attic more times than I'd like to have been, the insulation is deep and even. I think it's about 16-18 inches. Whats the device to check air flow/CFM?
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    It's only 1 return and 3 supply vents in the MBR....

    It's only 1 return and 3 supply vents in the MBR. I changed the filters yesterday. The return in the hallway was MUCH dirtier than the one in the MBR. I haven't checked for airflow at each of the...
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    Thanks for the advice. I wanted to set my...

    Thanks for the advice. I wanted to set my expectations before I talk to the builder.
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    I don't recall any problems in cooling, but we...

    I don't recall any problems in cooling, but we didn't move in until the summer got mild.
    It's not a cathedral ceiling, it is a 10' tray ceiling. I have tried turning the ceiling fan on reverse to...
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    The master bedroom is in the corner, so it has 2...

    The master bedroom is in the corner, so it has 2 outside walls. All of the other upstairs rooms have outside walls too, including the bonus room, which has 2 outside walls.
    Thanks for your input,...
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    The room already has 3 vents and 1 return. I...

    The room already has 3 vents and 1 return. I guess my question is, since it's a new house, would I be totally crazy if I asked them to add another vent or bigger supply?
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    Acceptable temp differntial within same zone

    I have a brand new house. I never noticed it in the summer, but now that it's getting cold, I've noticed that the master bedroom is consistently 3 degrees colder than the rest of the upstairs. Is...
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    Speaking of confused techs.... mine never hooked...

    Speaking of confused techs.... mine never hooked up the L contact of my visionpro 8321 to the L contact of my 2 stage Lennox heatpump. Is it necessary and am I missing out on anything? In his...
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    Just out of curiousity, what is the temp going...

    Just out of curiousity, what is the temp going from and to? ie what is your nighttime temp and morning/wake temp that the tstat is trying to achieve?
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    I have the 8321 t-stat and the outdoor sensor...

    I have the 8321 t-stat and the outdoor sensor will be here tomorrow. Is it ok to use an unused pair from the tstat wire for the outdoor sensor?
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    Good question - for some reason, even after...

    Good question - for some reason, even after countless screw-ups, I took the installers advice and disabled it. Is the group concensus that adaptive recovery is a good thing?
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    What you wrote makes perfect sense. I have...

    What you wrote makes perfect sense. I have adaptive recovery turned off.

    My outdoor temp sensor is on order. After I ordered it I was curious how necessary it was. Aux heat lockout above 40...
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