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Mod#4a7a6036c1000aa. i think its a2 stage compressor but only 1st is oper according to the light on the control bd y1 lit but not y2 ?

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Is this a wall unit or hvac?

Thanks!!

Posted on Jul 19, 2010

  • micheled64 Jul 19, 2010

    it's a 16 seer split system

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Posted on Jan 02, 2017

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We have 2 furnaces in our house, both on the braeburn 3200 model thermostats.


If you have a dual fuel system - gas/heat pump the heat pump should lock out at around 41 degrees depending on what the outside lockout sensor is set at. It may be that both the heat pump and furnace could be running at the same time if the outside lockout isn't working or there could be a problem with the thermostat. Best bet would be to have a service tech check it out. However if you want to check it out here are the terminals Terminations: R,Y1,Y2,W2,E,G,O,B,L,C. W2, E and B are the heating terminals for 2nd stage heat and emergency heat. First stage heat, compressor Y1 with B (reversing valve on heat pump) energized together. 2nd stage W2 energized for gas or electric heat . No power to Y1 and B when W2 is energized if gas. E can be energized with Y1 and B if you have electric heat or if you switch over to emergency heat, E will be energized.

Feb 02, 2016 | Heating & Cooling

1 Answer

Need help getting additional info for this system...


1-888-593-998eight. Goodman tech support. You should have your model# & serial# to both indoor/outdoor units if needed.

mobile.goodmanmfg.com/mobileapp/index.jsp#/mobileapp/asap/newPMainAction.jsp

This link gives a lot of info but not what you are looking for I believe. Most 2 stage equipment will have a Y1 and Y2 at the terminal block inside the air handler. And a two stage cool, two stage heat would work for yours, it appears to be a heat pump. Now at the outdoor unit, if it is 2 stage, you should also see Y1/Y2 terminals. As far as a filter media? Hard to say.

Jul 05, 2015 | Filter Heating & Cooling

1 Answer

Can I install this thermostat to a Geo Thermo Premier 2 Water Furnace with the following wires connected as follows from old Honeywell thermostat TA511M1010? Old connection; R, C, Y1, W, Y2, L, O, G


Yep, you should be able to run your water furnace with the thermostat. Just wire it up same letter to same letter on both devices. If your thermostat worked before, it should work again. I couldn't find the honeywell part you listed, but the terminal designations tell enough on their own. Don't forget to shut off all power sources before doing any wiring, and to configure the control board on the water furnace before switching the thermostat to any active mode.

In case you don't have it, here's the install guide3 for the water furnace.
http://www.waterfurnace.com/literature/premier/IM1555.PDF

Please mark me helpful and feel free to ask more questions in this same thread if you need to.

Jan 03, 2015 | Honeywell Heating & Cooling

1 Answer

What is the equation of the pair of points (-5,-8) and (-3, -1)


The site seems to eat the plus signs I enter, so I will use PLUS to symbolize addition.

To find the equation of the straight line (
y = a*x PLUS b) that passes through two points P1(x1,y1) and P(x2,y2) , you need to use
1. the coordinates of the points to calculate the slope a (gradient) as a=(y2-y1)/(x2-x1)
2.
Replace the calculated value of a in the equation and write that one of the points ( P1(x1,y1) for example) satisfies the equation. In other words y1=a*x1 PLUS b.
Here y1 and x1 are known values, a has been calculated, and only b is still unknown. You can now use the equation
y1=a*x1 PLUS b to calculate b as
b=(y1-a*x1)

Example: Equation of the line through (1,5) and (3,6)

Calculate the slope (gradient) of the line as a=(y2-y1)/(x2-x1) where y2=6, y1=5, x2=3, and x1=1. You should get a=(6-5)/(3-1)=1/2
The equation is y=(1/2)x PLUS b, where b is not known yet.

To find b, substitute the coordinates of one of the points in the equation. Let us do it for (3,6).

The point (3,6) lies on the line, so 6=(1/2)*3 PLUS b.
Solve for b: 6 MINUS 3/2=b, or b=9/2=4.5
Equation is thus y=(x/2) PLUS 9/2 =(x PLUS 9)/2

I trust you can substitute you own values for (x1,y1, x2,y2) to duplicate the calculations above.

Jan 27, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

Im replacing my honeywell with a hunter 44110 the honeywell has 6 wires w1 to white, w2 to blk, G to green, RH to Red, Y2 to yellow and Y1 to orange, the hunter only has G RH RC Y W


Hi,
I hate to tell you this but that thermostat will not work with your system.
The system you have is a 2 stage system and the thermostat you got will only do one stage.
You will need to get a thermostat theat is compatible with stage heating and cooling.
The W1 is the first stage heating, the W2 is second heating. The same is true for Y1 and Y2 on cooling
You could double them up, but it would defeat the encomoy reasons for having a 2 stage unit.
Wish I could give you better news..

I hope that this will help you to solve your problem!

Thanks for using Fixya!!

Heatman101

Dec 05, 2009 | Hunter Fan Company 5/1/1 Programmable...

1 Answer

Heat pump goes str8 to heating strips compressor does not run in heat mode pump was manufactured in 03 installed in 07 and has sat dormant till now could it be wired wrong it is a ruud split unit with...


I think that you have the right idea. The wiring is probably wrong. If you can trace the low voltage wires to the air handler. make sure that the Y1 wire on the t-stat is going to Y1 on the hair handler and then to the condenser. The Y2 wire should be going to Y2 on the air handler and probably does not continue out to the condenser. The Y2 should be going to the contacor that brings on your backup heat. It seems like Y1 and Y2 are reversed somewhere.

Nov 14, 2009 | Heating & Cooling

1 Answer

The thermostat on my coleman heat pump has 7 wires labled:g,y1,w1,x,w2,a,r. but the hunter replacement thermostat i purchaced does not have the same labeling it has rc/r,c,y1,y2,w2,e,o,b,g,l.i need to know...


here is some info may help you
coleman = Hunter
g   =  g
y1 =  y1
     =  y2 (second stage you don't have it on your system)
r    =  rc/r (leave the jumper bewteen rc/r)
x   =  c
w1 =  w1
w2 =  w2
a   =  o
     =  b
the "b" terminal is to energized the revensing valve on heat mode
the "o" terminal is to energized the reversing valve on cool mode

Oct 09, 2009 | Heating & Cooling

1 Answer

Need help with electrical for Armstrong 3.5 Ton 16 SEER


Next item: What is the exact model of the thermostat? It should consist of TH6###?#### where the "#" are numbers, and the "?" is a letter. And also you can check the following:

1. Remove the thermostat by gently pulling straight out from the wall to remove it from the sub base and tell me is you have 1 or 2 terminal blocks on the sub base. This will tell me if your thermostat is a 1 stage cool or 2 stage cool thermostat.

2. Check the air handler low voltace connections and check that the wiring is connected to both Y1 and Y2 and that these wires are connected to Y1 and Y2 at the condensing unit.

It may be the case of not connecting the condensing unit 2nd stage wiring, the thermostat is only 1 stage cool, or some similiar wiring mishap. Have seen it many times over the years. People get in a hurry and forget the small things. But if this was professionally installed, you paid a good price, if you find that the wiring is incorrect or the themostat is wrong, you should call your installing contractor and demand they return to correct this issue to maintain your factory warranty. If you have any addtional questions, or concerns or need help with any of the above, you can contact me again through here or via my company website at www.emshvac.com .

Thanks
Richard

Jun 23, 2009 | Heating & Cooling

1 Answer

I can't find how to graph absolute value function.


Hello,
Here how you do it taking as exemples y1=x^3 -5 and y2=abs(x^3-5)
Turn calculator ON by pressing [AC/On] . Use arrows to select [Graph] icon and press [EXE]
On line Y1= enter X[^]3 -5 [EXE]
On line Y2= press [OPTN] [F5:NUM][F1:abs] [(] X [^]3 -5 [)] [EXE]
The graphs will be drawn one after the other. You might have to adjust the window limits.
Here is an ouput drawn on another calculator.
09b72b9.jpg
For negative values of the x-variable, Y1 has negative values, while in the same range, Y2 has positive values, equal and opposite to those of Y1. In that range, Y1 and Y2 are symetric of each other with respect to the X axis.
For positive values of the x-variable, Y1 and Y2 are identical.

Hope it helps

Jan 30, 2009 | Casio CFX-9850G Plus Calculator

1 Answer

RTH7400 thermostat installed-screen display unlit-used page 10 wire installation. Used heat pump wiring-which does not show W2 and Y2 on heat pump schematic, so used conventional displayed W2 and Y2...


w2 and y2 are used for 2stage applications

w2 = 2 stage heat
y2= 2 stage cool

If your system is a single stage system, look for the y1 and y2 terminals. If the thermostat does not have y1 and y2 then you may have the wrong thermostat. As always, please read the directions carefully. Thanks!

Jul 03, 2008 | Heating & Cooling

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