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Posted by aka-SBM on July 11, 2006, 12:59 am
>
>>
>>
>>
>>
>>> I'll admit I've not used one of these thermostats. But, from what
>>> you're describing, I've got two ideas. The first is less likely.
>>>
>>> 1) there is a switch inside the thermostat to change from heat pump
>>> to split system. Causes the therm to supply signal to the G lead (or
>>> not).
>>
>> Nope..I told you that there were TWO thermostats.
>> Read it again.
>> CY: You did write aobut two thermostats. Quoting: "White Rodgers
>> mercury stat.
>> Sep T87F for the electric furnace...Coleman if it matters..
>
>
> That part you got right...
>
>> The Lux is for the Gas-electric thats wired for AC only". So, we have
>> an old mercury T87 coming out. And a Lux going in.
>>
>
>
> Wrong. GOD...ok..if the T87F is for HEAT, what in hell you thinks for the
> COOLING, since thats what we are talking about????????
>
>>
>>> 2) The new thermostat shoulda been wired to Y2 instead of Y1, at the
>>> air handler. Or the other way around. Y1 instead of Y2.
>>
>> Did I say it had a Y2? Nope..just a Y...NO HEAT PUMP IN THIS.
>> CY: The equipment I've installed most of them have a YH and YL. Rheem
>> contours.
>
> Humm...we aint talkin about INSTALLS, we are talkin about a simple retro
> fit thermostat, no matter how cheap, with only two jumpers in it, one for
> gas, one for electric, and one for a time delay for the compressor, no C
> terminal, just W, Y, R and G..thats it..........
>
>
>
>>
>>>
>>> Since the customer replaced a two wire stat, you didn't say if s/he
>>> pulled a new wire. But we'd have to guess s/he did.
>>
>> I didnt say that either, I said, that it had a W, Y, G, and R...read
>> it
>> again.
>> CY: You said that the old one was a cooling only stat. Which could
>> have been a two wire pull.
>
> Could have been, but....
> I have already told you that the FAN would run in the ON position,
> therefore you have at least 3. I also told you that all the wires were
> connected at the stat, and there was NO PROBLEM at the thermostat.
>
>>
>> Now think Chrissy, so far, you are so far off its silly.
>> You didnt read, therefore in the Usenet world, you didnt
>> listen..so...lets
>> try it again....
>> CY: OK, if you think you can add anything.
>>
>> No parts replaced.
>> Not a heat pump
>> Fan would run with fan switch to ON, but not auto.
>> Compressor and condensor fan motor would run but no blower.
>> GAs not conected and not used.
>> CY: That's about what you wrote earlier.
>
>>
>>
>> The answers easy and I have 5 correct answers so far...and ones from a
>> homeowner. Sad. This is the best you got Chris?
>> CY: I didn't read any other replies. From what I can gather over the
>> news group, those are my two ideas. Of course, if I was there at the
>> location with my VOM, it would be a different matter.
>>
>
>
> Actually no Chris...you dont need a VOM to figure this one out.
> All the answers are there and there are no replies to this that you can
> see.
>
> Its kinda funny tho....you giving advice and you cant figure this one out
> and its simple.
>
> Give ya a hint tho...
>
> When you open the cover on the unit..the package unit that wont work right
> with a new stat, its simple..standard gas package controls, in order from
> right to left..a contactor, properly wired, a blower fan peanut relay, a
> fan limit control, and a capacitor.
> Thats in the upper control box.
> Lower, near the old inoperative gas valve, is nothing but a spark ignition
> module and the gas valve with a couple of safetys that are not even in the
> equasion.
> The blower motor is a three speed GE, yellow as a common, with red, black
> and blue wires as most have, with a single cap terminal. Its wired so that
> red, slow, is on the burner side, and black, high, is on the cooling side.
> The gas side is inoperative. The W lead is disconnected in the machine.
> The machine was installed by the landlords brother who happens to be in
> HVAC as a licenced contractor and this unit was a take off that was placed
> on a rental unit. Everything works. The blower will run as long as the
> stats on ON, and not when its on AUTO postion. You cant run a jumper from
> G to Y, cause if you do, you will cause the compressor to operate when all
> you want is a fan.
> The heat is provided by a T87F stat, THREE wire pull, with a Coleman
> electric furnace that is wired sep. It all works fine. Its not part of the
> equasion. Nothing about the Coleman matters here, since the repair was
> made outside in the package unit.
> Ill go ahead and tell you in a bit since its now painfully obvious to all
> the homemowners reading this that you are not qualified to make any repair
> ideas over the net when you cant even figure out one simple thing...BASIC
> ELECTRICAL TROUBLESHOOTING here Chris.
>
> You have a fan relay thats obviously working.
> You have a thermostat thats obviously fine..actually, its brand new.
> You have a unit thats a take off from another home. and it worked fine
> before...oh..but wait....I did say it had a cooling only white rodgers
> common stat on it didnt I? Oh....goodness...you have never seen one have
> you? You dont have a clue what it looks like or how its wired....golly
> gee...you dont know if its even got a sub-base....
>
> Ok Chrissy...its learning time.
>
> Those stats, 1E31-910 ,that are used all over the country and are cheap as
> all get out, look like this:
>
> http://www.white-rodgers.com/wrdhom/pdfs/04_Cat_pages/04_Cat_pg_018.pdf
>
> The one that replaced it is this:
> http://www.luxproproducts.com/thermostats_digital/psd100.htm
>
>
> Now do you know what was done to the unit OUTSIDE that made it work like
> it was supposed to?
> Remember, the gas part isnt used anymore and if thats not a fucking clue,
> I dont know what is.
>
>
>
>
>
>>
>>> --
>>>
>>> Christopher A. Young
>>> You can't shout down a troll.
>>> You have to starve them.
>>> .
>>>
>>>
>>>
>>> Hey..you wanna show professional internet troubleshooting?
>>> Show us...here is a simple one.
>>>
>>> Customer calls. Has a LuxPro stat that he wants wired. Simple
>> enough.
>>> 4
>>> wire. No common. Just R, G Y and W......old stat was a simple COOL
>>> ONLY
>>> White Rodgers mercury stat.
>>> Sep T87F for the electric furnace...Coleman if it matters..
>>> The Lux is for the Gas-electric thats wired for AC only....leaving
>> the
>>> W out
>>> of the equasion above...Old Day and Night, if it matters to you...
>>> Now..here is the issue, and think about it real careful, cause it
>> took
>>> me
>>> about 20 seconds talking to the owner to get that information posted
>>> above
>>> to know what the problem was.
>>>
>>> Issue: When the Lux was turned to ON, fan position, the blower would
>>> start
>>> and run fine.
>>> When the stat was set to AUTO, and COOL, and turned low enough that
>>> the AC
>>> would start, the compressor, condensor fan motor and nothing else
>>> would run.
>>> IE: No Blower.
>>> Now, it runs fine, no matter what the setting, remember....heat is
>> NOT
>>> used
>>> on the old gas-electric package unit..the gas valve is not even in
>> the
>>> unit..
>>>
>>> The repair was simple as pie...what was it?
>>>
>>> No parts replaced.
>>> No stuck relays..
>>> No more than a service call and 20 minutes of time to insure it all
>>> worked
>>> and worked correctly after a under 5 minute repair.
>>>
>>> What was it?
>>>
>>> Amaze us with your tech ability. Any tech thats been in the field a
>>> bit can
>>> figure out basic electricity. Lets see how much knowledge you really
>>> have,
>>> and regs, please leave this one to the new internet god of repair
>>> advice.
>>>
>>> Id bet the farm you aint got a clue, and if you dont Chris, be man
>>> enough to
>>> admit it.
>>>
>>>
>>>
>>>
>>>
>>
Ready Chris? I told you it was learning time.
Simple nuff here...The relay in the unit worked fine. Thus, the fan ran on
the ON position.
The lack of the fan running in AUTO was due to the fact that the White
Rodgers stat that is cooling only, had the G and the Y wired at the base
together. The Lux didnt do this.
Therefore, all one had to do, was simply remove the low speed fan ternimal
from the relay, and splice the high speed line in. That makes the fan run on
high when the thermostat is switched to ON, and then, you take the terminal
end of the lead, and plug it on the contactor so that when it closes, BADDA
BING..ya got air.
Since the heat isnt used on this, but the landlord wanted the fan to run on
both settings, this altho odd setup will work fine and will not have you
trying to cook the motor with power applied to the low and high windings at
the same time.
>>
>>
>
>
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