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How to wire up 5 wire thermostat - Air Conditioners

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RED TO R
YELLOW TO Y1
GREEN TO G
BLUE TO C
WHITE TO W1

Posted on Jul 22, 2008

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How to install a thermostat?


Disconnect power. 1st run 18/5 wire. TStat wires are as follows : RED=24v GREEN=FAN WHITE=HEAT YELLOW=COOL BROWN OR BLUE=COMMON: UNIT WIRES REFER TO WIRING DIAGR

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Rheem Heat Pump Thermostat Replacement (#41-20804-15)


you need a 2 stage heat and cool t-stat hunter t-stat is not 2 stage

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Gooman ck30-1t need help wiring thermostat to unit


Hello, on your thermostat you should have terminals Y,G,C,R and W and each terminal should have a wire. Typically y is yellow, G is green, c is blue,R is red and W will be white. If there are only two wires at the thermostat this means heating was only used in the past and new 18/5 thermostat wire must be run from the control board to the thermostat

Jul 02, 2012 | Goodman Air Conditioners

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Inside Fan comes on but when you switch the thermostat to the on position it blows the circut board 3 and 5 amp fuses. All wiring was checked and eveything is wired correctly


Try disconnecting all control wiring at the furnace to the thermostat, then jump "R" terminal to "G" terminal, the fan should come on, then jump "R" to "W" the heater should come on, if the fuse holds after testing the problem is either with the control wiring to the outdoor control wiring or the thermostat and or thermostat wiring.

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My old thermostat had 4 wires connected to it, I have 5 wires white black ,blue,yellow and red. the wasn't connected to the old thermostat.Do i need to connect the red one to the new thermostat because...


locate the wires at the unit and hook them up in the same way . If it was not hooked up before you most likely don't need to hook it up now.. but check the unit where the wires connect to it.. let me know Have fun

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1 Answer

How to wire condenser and air handler to the t-stat


Assuming this is a standard unit the thermostat connections you will use: Y, R, G, W and possibly C.

Run two conductor thermostat wire to the condenser. The condenser will have two wires to connect. Connect the two conductors to the condenser wires and run them in to the air handler.

At the air handler, connect the two condenser wires to: Y (yellow) and C

Run 4 or 5 conductor thermostat wire from the air handler to the thermostat. At the thermostat, connect the yellow wire to Y, the white wire to W, the green wire to g, and the red wire to r.

At the air handler, connect the thermostat wires: White to w1, yellow to Y, green to G, and red to R

*Y will now be connected to the thermostat and the condenser
*If you have 5 conductor wire to the thermostat, connect the last wire (which is probably blue) to C
At the air handler, connect the last wire (blue) to C. This will enable you to have 24 volts at the thermostat in case the thermostat actually requires 24 volts to operate it.

R=hot
G=fan
Y=cool
W=heat

May 19, 2011 | Air Conditioners

1 Answer

I tring to change thermosat I can not remeber what color go where


Typical Thermostat Wiring for 4 or 5 wire Heat/Cool Thermostat (not heat pumps)
4 Wire Termostat
R = Red One Side of 24 volt Transformer
G = Green Blower
Y = Yellow Cool
W = White Heat
5 Wire Thermostat
with one transformer for both units
Rc One Side of 24 volt Transformer
Rh Jumper Rc to Rh
G = Green Blower
Y = Yellow Cool
W = White Heat
5 Wire Thermostat
With 2 transformers one for indoor unit
And one for outdoor unit
Rc = Red One Side of (outside) 24 volt (outside transformer)
G = Green Blower (outside transformer)
Y = Yellow Cool (outside transformer)
Rh = Blue One side of (inside) 24 volt (inside transformer)
W = White Heat (inside transformer)
COOLING ONLY Thermostat
R = Red One Side of 24 volt Transformer
G = Green Blower
Y = Yellow Cool
HEATING ONLY
R or Rh One Side of 24 volt Transformer
W = White Heat

Feb 09, 2010 | Air Conditioners

1 Answer

Trying to figure out thermostat wiring diagham on a split system


Typical Thermostat Wiring for 4 or 5 wire Heat/Cool Thermostat (not heat pumps)
4 Wire Termostat
R = Red One Side of 24 volt Transformer
G = Green Blower
Y = Yellow Cool
W = White Heat
5 Wire Thermostat
with one transformer for both units
Rc One Side of 24 volt Transformer
Rh Jumper Rc to Rh
G = Green Blower
Y = Yellow Cool
W = White Heat
5 Wire Thermostat
With 2 transformers one for indoor unit
And one for outdoor unit
Rc = Red One Side of (outside) 24 volt (outside transformer)
G = Green Blower (outside transformer)
Y = Yellow Cool (outside transformer)
Rh = Blue One side of (inside) 24 volt (inside transformer)
W = White Heat (inside transformer)
COOLING ONLY Thermostat
R = Red One Side of 24 volt Transformer
G = Green Blower
Y = Yellow Cool
HEATING ONLY
R or Rh One Side of 24 volt Transformer
W = White Heat

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1 Answer

I need to know how to rewire my heil air conditioner 6 wires are lose?? they are red white orange black red and purple!!!! Model number ph5036akb4


the wires at the thermostat????...this can be very tricky because the colors could mean nothing...every installer can wire it differently...if they used one continuous thermostat wire it's not too bad....you have to go down to your furnace and look in the fan compartment or wherever the thermostat wires enter the furnasce....generally a brown wire with 5 wires colored inside....find the wires where they connect to the furnace circuit board , terminal strip or fan centre and write down all wires and their corresponding terminals...for example...Red wire is on "R"white wire is on "W" and they may not match their color....thats ok.....then connect them at the thermostat accordingly////if you only have 4 wires you will require the jumper wire between RH & RC ...if you have 5 wires...remove the jumper or ignore that....good luck :)
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Oct 31, 2009 | Air Conditioners

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