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Old 03-20-2011, 12:19 AM   #16
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A/C unit outside not coming on


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Originally Posted by 1mastertech View Post
I agree but the execution of a low voltage command is being looked at differently and there is a difference.On a stat the auto on featutre controls the blower only and has nothing to dowith the outdoor ac.Theres a stat that has a auto feature that wikll run the heating and cooling so a customer doesnt have to manually change modes to get the system to heat or cool.Its called an auto changeover tstat.Im confident that we know whats going on but are looking at it at different applications.If I cant work a stat aftyer 30 yrs in this trade well ill hang my tools up!

I think I might be misunderstanding but here goes nothing...

The stat on auto cool is now a thermometer used when above desired set point to close a circuit, the cooling circuit, thus telling the a/c unit to come on simultaneously with the blower. The same for heat and auto, thermometer/air temperature sensor switch telling the heat to kick in with the blower if temperature is below desired set point.

On "on" all it's doing is telling the blower to come on by itself, no heat or cool.

What am I missing?

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Old 03-20-2011, 12:34 AM   #17
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A/C unit outside not coming on


When that cooling circuit is energized than the 24 volts is energizing the coil at the contactor in the condenser and pulling in the contactor (again,at the a/c unit/condenser) allowing the high voltage to pass through to turn on the condensing unit, all because of the auto and cool setting being on and sensing the temperature and closing the low voltage circuit to the condensing unit and around and around we go.

What am I missing? I'm not understanding this auto stat you are talking about..?
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Old 03-20-2011, 08:08 AM   #18
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A/C unit outside not coming on


Sounds like you people scared away Ksjka with all your theory.
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Old 03-20-2011, 08:51 AM   #19
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Sounds like you people scared away Ksjka with all your theory.
See thread "HVAC is not a DIY event."
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Old 03-20-2011, 09:12 AM   #20
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Doc could you please cure me I can't understand why you pointed me to the other post. This guy is having a problem and this is a DIY site why does everyone try to turn it into a HVAC PRO site?

It's nice to have the Pro's(like me) and you to help.

Most of these people ask legitimate questions to the best of their limited knowledge, strange yes at times but they do need help.

I do remember when I was young struggling so called mechanic trying too feed my family and learning. I remember those days and never forgot.

The only thing we can do is try to steer them in the right direction if they don't go that way OH well that's on them.
Later Doctor of Air.
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Old 03-20-2011, 09:16 AM   #21
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A/C unit outside not coming on


Quote:
Originally Posted by COLDIRON View Post
Doc could you please cure me I can't understand why you pointed me to the other post. This guy is having a problem and this is a DIY site why does everyone try to turn it into a HVAC PRO site?

It's nice to have the Pro's(like me) and you to help.

Most of these people ask legitimate questions to the best of their limited knowledge, strange yes at times but they do need help.

I do remember when I was young struggling so called mechanic trying too feed my family and learning. I remember those days and never forgot.

The only thing we can do is try to steer them in the right direction if they don't go that way OH well that's on them.
Later Doctor of Air.

Meow!! I was just messing around. You said he got scared and hvac being a little more precise than what many give it credit for, I said that.

Of course I'll help anyone out and like to do so and not only for their benefit but mine too as talking assorted problems out keeps me sharp, keeps me thinking.
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Old 03-20-2011, 10:31 AM   #22
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A/C unit outside not coming on


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Originally Posted by doc holliday View Post
meow!! i was just messing around. You said he got scared and hvac being a little more precise than what many give it credit for, i said that.

Of course i'll help anyone out and like to do so and not only for their benefit but mine too as talking assorted problems out keeps me sharp, keeps me thinking.
" what's this meow crap ? "
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Old 03-20-2011, 10:39 AM   #23
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A/C unit outside not coming on


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" what's this meow crap ? "

just messin' around, friend.

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Old 03-20-2011, 10:51 AM   #24
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just messin' around, friend.

" I thought this was the DIY site not the Comedy site"

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