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Old 06-08-2009, 09:52 PM   #1
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2 Story up/down thermostat settings


I live in Georgia. I have no tree's, and all windows have blinds. Forced air with two seperate units/thermostats.....Can someone advise me on setting my temps during day/night and for up and down stairs?

The house is 3100 sq ft. down 2300 up 800 The center of the house is open 18' ceilings about 22' wide which are foyer, living room, and upstairs hallway. A bedroom on either side upstairs, all of the vents are in the bedrooms upstairs along with the thermostat. 3 returns one in hallway and each room. (should I leave doors shut?)

I set upstairs at 78 degress from 8-5P and downstairs 76. At 5P upstairs goes to 76 and downstairs to 74. At 9P i set upstairs to 75 and downstairs to 73. Master is on 1st floor

Is all this changing good or bad? Are my units struggling or is it saving some $ for the 8 hours during the day? Should I just leave at one temp.

When it's 95+ outside it takes 3 hours to catch up.

THanks


Last edited by Ineedhelp2009; 06-16-2009 at 08:57 PM.
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Old 06-16-2009, 06:35 PM   #2
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2 Story up/down thermostat settings


anyone

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Old 06-16-2009, 07:48 PM   #3
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2 Story up/down thermostat settings


Why are you setting your night time temp lower on the first floor. When you will be going to bed soon?

Around 6 or 7 (gives it time to cool the rooms and contents)set your upstairs to the temp you want it to be for sleeping. Don't worry about doing gradual temps.

Might want to set your downstairs stat up 2 when you go to bed.
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Old 06-16-2009, 08:15 PM   #4
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2 Story up/down thermostat settings


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Why are you setting your night time temp lower on the first floor. When you will be going to bed soon?

Around 6 or 7 (gives it time to cool the rooms and contents)set your upstairs to the temp you want it to be for sleeping. Don't worry about doing gradual temps.

Might want to set your downstairs stat up 2 when you go to bed.
sorry did not say Master is on 1st floor. Son sleeps on second floor. My wife and I have to be cool when sleeping.
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Old 06-16-2009, 08:29 PM   #5
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2 Story up/down thermostat settings


Ah, bad lay out.

Still, skip the intermediate settings. On hot days it may only shut off for a litle before your setting it lower.
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Old 06-16-2009, 08:31 PM   #6
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Ah, bad lay out.

Still, skip the intermediate settings. On hot days it may only shut off for a litle before your setting it lower.
whole house is layed weird. I found original plans prev owner changed alot of stuff
Yea today only 89 or 90 I got home at 7PM upstairs still 78 and down still 75 both were running nonstop since 5PM.
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Old 06-16-2009, 08:34 PM   #7
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2 Story up/down thermostat settings


Make sure your air filters are clean.

Has you had them serviced recently.
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Old 06-16-2009, 08:37 PM   #8
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2 Story up/down thermostat settings


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Make sure your air filters are clean.

Has you had them serviced recently.
Have those the blue ones they say you can clean anygood? Just cleaned this weekend.

AC serviced no, but I believe I have a problem when heat comes on with the defroster not working on the outside unit... have not called someone out yet.... that happened last cold day of yr.
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Old 06-16-2009, 08:38 PM   #9
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2 Story up/down thermostat settings


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Make sure your air filters are clean.

Has you had them serviced recently.
someone told me a few years ago always keep second floor cooler because cold air drops?

The vents upstairs do not blow very hard at all!

Last edited by Ineedhelp2009; 06-16-2009 at 08:48 PM.
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Old 06-16-2009, 09:31 PM   #10
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I don't like cleanable ones.

Cool air will fall. but no real reason to keep second floor cooler.

Set it to the temp your comfortable at.

Coil may be getting dirty and restricting air flow.
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Old 06-17-2009, 07:40 PM   #11
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2 Story up/down thermostat settings


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I don't like cleanable ones.

Cool air will fall. but no real reason to keep second floor cooler.

Set it to the temp your comfortable at.

Coil may be getting dirty and restricting air flow.
true. Man today left up on 76 HOLD it's still 77 degrees at 8:40PM
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Old 06-17-2009, 07:45 PM   #12
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Low air flow can cause that.
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Old 06-17-2009, 08:11 PM   #13
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Low air flow can cause that.
.

what would you suggest? clean coils? I checked temperatures coming out of the registers 58-61 degrees.
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Old 06-17-2009, 08:20 PM   #14
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Clean both the indoor and outdoor coils.
Should have a tech check charge.
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Old 06-18-2009, 06:53 PM   #15
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Clean both the indoor and outdoor coils.
Should have a tech check charge.
Thanks for your help!

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