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Thread: Gas Furnace Control Board
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09-12-2007, 08:30 PM #1
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Gas Furnace Control Board
THIS IS A BASIC RESIDENTIAL SYSTEM I THINK IT CALLED A SPLIT FOR THE TO F-ING MORRONS, ELK AND TWILLDLE DEE! Is this true that setting the fan switch to the "on" AS OPPOSED TO THE AUTO SETTING WHICH IS AVAILBLE on ANY BASIC THERMOSTAT DIGITAL OR NON... on today systems as compared to the old style with out the PC-BOARDS. THIS MEANS IT MIGHT JUST HAVE A FAN/LIMIT SWITCH.
Im am being told that in the "on" position if you switch the system over from "cool" selection to "heat" that the fan will switch over to the slower speed. I did notice that there is a blower motor speed change relay (spdt) as well as a blower motor relay, (spst-no) ON THE PC BOARDS.
THANKS FOR NOTHING!Last edited by Tito; 09-12-2007 at 10:22 PM.
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09-12-2007, 08:35 PM #2
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What was the question?"We'll have to outwit the fiend with our superior intelligence." Yukon Cornelius
Some people are like Slinkies---not good for anything, but still bring a smile to your face when you push them down the stairs!
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09-12-2007, 09:10 PM #3
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Twilli says go easy on him, if Micheal Jackson was your brother you would be thinking clearly either.....so
=No Heat No Cool You need Action Fast
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09-12-2007, 09:36 PM #4
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answer is more than likely yes
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09-12-2007, 09:53 PM #5
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yes its true. old style would bring on the fan in whatever speed ac used (usually high) some circuit boards now energize a lower speed on a call for fan. i see no improvement in that. variable speed motors aside the benefits to having a "fan on" are for increased filtration or evening out temps, as in stratification. not to mention that a psc motor is going to use more power in low than high.
i was born under a wandrin star.
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09-12-2007, 10:26 PM #6
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Since Twilli didn't say it, I guess I have to. Coleman................
Have you hugged the Earth today?
Donny Baker rules
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09-12-2007, 10:28 PM #7
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Thanks!!
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09-12-2007, 10:45 PM #8
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Tito,
Welcome to HVAC-Talk!
This is not a DIY site, please review the rules in my signature link. Also, if you are a tech, you need to let us know by filling out your profile.
Now some of the responses that you recieved may be borderline facetious, but you were asking for help that basically violated the rules.
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THREAD CLOSED!
