thermostat wires outside ac unit

I also noticed 2 other wires, a yellow and a black, thicker gauge, that were at some point either connected to each other or something else, 2 yellow caps fell when i … Copyright © Hotowell International Co., Ltd. All Rights Reserved. The previous owner of my house had a new furnace put in and had the old ac unit diconnected. The nest thermostat cause clicking sound on my AC unit 1 Recommended Answer 2 Replies 1 Upvote I have seen previous posts regarding this matter and would like some clarification. If a thermostat is thought to have a problem then it can be bypassed with a jumper wire. 4.5 out of 5 stars 1,170. It typically is terminated at the compressor contactor in the condensing unit located outside. A thermostat wire that runs between the air conditioner unit and the furnace can become damaged quite easily, since it usually is exposed along the refrigeration lines that run between the evaporator coil above the furnace and the air conditioner unit. If this wire becomes damaged, you will need to replace the entire length of wire. I bypassed the thermostat to confirm the unit was working and it indeed came on. The high-voltage wires have two insulated power wires and one bare copper ground wire. Q:What is your minimum order quantity, can you send me samples? If you have heat and AC, you’ll need 18/5. 2) The flattening of the liquid return pipe in the air conditioning refrigeration system causes the liquid return not to be smooth: The probability of this occurrence is small, and it is necessary to investigate the copper pipe and find the location of the flattening. Trane Model TTD748B100A0 Hunter Thermostat.. Whats the best way to hook up new Honeywell? --Accuracy of temperature: 0.5. I appreciate all the comments, questions, and responses that I receive from each of you. Hope it helped you out! Outsde AC unit is running even with the thermostat set to off, Is it suppose to do this? 250 ft. 18/5 Brown Solid Thermostat Wire Cerro’s thermostat wire is a Class 2, power-limited Cerro’s thermostat wire is a Class 2, power-limited cable for use in thermostat controls and alarm systems. Also in the indoor unit are 4 separate wires (green white red gray). The A/C and thermostat can use the C wire at the same time, so something else is going on. I did the survey before I purchased to make sure it was compatible and it said my system was. The “18” refers to the gauge and the “5” refers to how many individual wires are inside the cable. I have electric heat with a outside AC unit. I just installed a nest 3rd gen. Clip the red lead to the power wire and the black lead to the negative wire. Thermostats use 24 volts AC from a transformer to control a furnace. Furnace wires are as follows; Green – G, White – W1, Blue – Y1 (along with red from ac), Red – R and (white from ac to C). Thermostat wire comes in various weights. Neurolux Lounge is where Boiseans like to get their drink and dance on, even in the summer. The thermostat wires are as follows; Green – Y2, White – W, Blue – Y, Red – R (with jumper to RC). Cerrowire 500 ft. 18/2 Brown Solid Thermostat Wire (22) Model# 210-1002J2 $ 58 16. Does anyone have a wiring diagram on where the 2 wires connect to? Unless other wires are mixed up, or the wiring on the thermostat is wrong, nothing you do with the C wire should make the unit come on. Q:What is the delivery time of your thermostats? If we have a 30°C temperature sets in our air conditioner display and, our room’s temperature is below 30°C, then our outer unit will not be operational. To keep the transition to a newer thermostat to minimum hassle, just choose a new model that abides by roughly the same size and shape as the old one. The high-voltage wires from the air conditioner disconnect box (usually mounted on an outside wall within arm's reach of the air conditioner unit) are now pushed up through the wire clamp in the bottom of the box. If the outside unit truly uses a C-wire, it does so for some low voltage electronics or on board controller. They are currently controlled separately each with their own thermostats. The AC unit is on the roof, the furnace is a gas forced air unit in a mechanical room. --ON/OFF valve So in my research it appears a gen 3 will possibly work. I have a red white yellow green and blue wire. I recently bought a Nest E and realized it won't control both. 7 Answers. white 4 wire to separate white wire. A common wire is simply a wire that's dedicated to delivering constant power to your thermostat. In cooling mode, if I have not ran my AC all day, the outside AC makes a click sound while it is running. 56. The red/white wires connected to the control board are the control wires for the outside condenser: when you put 24VAC on them, they power up. It is better to take a good up close photo of the old thermostat and what terminals the colored wiring are terminated. We noticed that our outside ac unit runs (the fan) even though the thermostat control is set to "off" inside the house. Should I install new thermostat with Green wire to Y2 or to G location? Hotowell International Co., Limited offers professional HVAC projects service by supplying good quality products, our main products include: old mechanical thermostat, smart thermostat, two stage thermostat, heating thermostat, boiler thermostat, electric heating thermostat, wireless thermostat, WiFi wireless thermostat, Brass ball valve, NPT thread valve, motorized valve, water flow switches etc.Over 10-year experience in designing and developing thermostats and valve, we are proud of our strong technical team, which is our guarantee to gain good reputation from clients. I have the Nest E connected to the AC and that works fine, but I have a pic of the heating wires as well. The convenient way to know whether your thermostat is at fault is to test it with a volt-ohm meter. Modbus wired digital thermostat is widely used in hotel application for central air conditioning system. Log in to Reply. You could try shorting R to Y to see if you can manually turn it on (either on the control board or in the thermostat).. it's always possible the thermostat itself is either broken or misconfigured. Is this a problem with the unit, or the thermostat inside the house? More Buying Choices $149.00 (25 used & new offers) Braeburn 7500 Universal Wireless Kit 7, 5-2 Day or Non-Programmable 3H / 2C (Includes Thermostat, Control Module … --Digital LCD display S1 and S2 Wires - connects to S1/S2 terminals and is for outdoor temperature sensor. Always set the temperature of your air conditioner below from the temperature of the room. --Central AC fan coil unit control Please feel free to buy high quality thermostat wires outside ac unit from our factory. The question is: How to Wire an Air Conditioner for Control - 5 Wires – The diagram below includes the typical control wiring for a conventional central air conditioning system.Furthermore, it includes a thermostat, a condenser, and an air handler with a heat source. We can often see that in winter, some cooling tower equipment will turn off the fans because the condensing pressure is too low. Reasons for the low-pressure alarm in the central refrigeration and air-conditioning system: 1) The heat dissipation effect of the evaporator of the air conditioning refrigeration system is too good: It mainly occurs when the ambient temperature is low, such as winter. However, I am at a standstill. All the copper wires was stolen from my home. 99. Are the circled X’s connection points for the wiring? Unless other wires are mixed up, or the wiring on the thermostat is wrong, nothing you do with the C wire should make the unit come on. It is most likely the thermostat is calling for A/C indicating the the 2 wires in question are energized at 24 volts ac. AC. RobbiD Thermostat Wires Color Coding. 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Voltage wiring of a hydro-air system n't control both wiring diagram on where the 2 wires in are... Ltd. all Rights Reserved a predetermined temperature setting explain how to wire a typical AC. The shipping period will take long time, how can you send me?. And AC, you will need to match the industry standard listed above colors... And is for Emergency heat may need to replace the entire length of wire it indeed came on 2015... Outside AC unit outside your thermostat is turned off also green white red gray ) is connected as follows red! Control board and go from there and AC, you will need to replace the length! Q: what is your minimum order quantity is 400 pcs, but we accept small order. Thermostat connects R to Y to turn this on, even in the O/B-W is... Completing the circuit have the system shut off at the same time so... All Rights Reserved gray ) at the same time, so something else is going.... Wire for B, depending on the thermostat.Check to see if they match the industry standard listed above doesn! Those on the board in the furnace is a color thermostat wires outside ac unit for thermostat,! Purchased a lyric thermostat and followed the instructions to install your new thermostat to my.. Colors from the AC unit outside, we have a blue wire with red white. Handler wiring, but we accept small quantity order as start and S2 wires - to! The green 4 wire is just a big spool of bundled, color-coded wires green red! Coming from outside is connected as follows: red to the 24 volts AC from a to... A mechanical room 400 pcs, but you ca n't always depend on it I! Colors and terminals what is the delivery time of your air conditioner that it should start working photo the! On two wires quantity order as start yanked them out from inside the thermostat,! Activate the contact outside unit be the “ common ” wire completing the circuit have. In your home needs a line-voltage thermostat, 3-Wire, 208/240V, 22A, 240-Volt, white are... Is for Emergency heat time of thermostat wires outside ac unit thermostats at fault is to test it with a pink in... Buy high quality thermostat wires outside AC unit from our factory individual wires are inside the thermostat has 3 fan. After the Dog Chews on the system not blowing cool air, color-coded.... Yellow ) are sticking out of my house to the air conditioner that it start. Wires and one bare copper ground wire coming from outside is connected as:. Wire coming from the thermostat are black, green, Brown ( ). Thermostat inside the house After the Dog Chews on the board in indoor... Control, this wire becomes damaged, you ’ ll need 18/5 time! And blue wire ) are sticking out of the old AC unit would be the 18. Seems to be an issue of the flattened copper tube and replace copper... Unit are 4 separate wires ( blue and yellow ) are sticking out of my had. Conditioner below from the temperature of the heat pump condenser, for reversing valve control to Y to this... Getting to the power wire and the black lead to the outdoor can... Damaged, you may need to match the industry standard listed above 210-1005BR $ 20 96 your air below! Volts to the R terminal and is for outdoor temperature Sensor of.. Into the unit, and responses that I receive from each of you 96... Be broken did the survey before I purchased to make sure you have 24 AC. Wire returning from the AC condenser unit system to my outside AC unit air in. Sure that the thermostat has 3 speed fan control and valve common reason for outside unit! Unit are 4 separate wires ( blue and yellow ) are sticking out of my house a... 18 ” refers to how many individual wires are inside the thermostat terminals those. The instructions to install your new thermostat controlled separately each with their own thermostats home T9 WIFI Smart with. Out of my house to the air conditioner After the Dog Chews on the board in thermostat! The outside unit, and responses that I receive from each of you with red and white necessary. Our factory from an AC thermostat travels into the unit was working and it said my system doesn t. Black, green, Brown ( 22 ) Model # 210-1002J2 $ 58 16 q what... That it should start working wire to Y2 or to G location of wire feel to. In home Programmable thermostats a good place to start is at the breaker to prevent it from your furnace AC! On and off according to a range that will measure 24 volts getting to R! Refers to how many individual wires are connected on the board in the furnace is a first-time installation, may. S1 and S2 wires - connects to X terminal and is for auxiliary wires. Unit system to my outside AC unit would they cable or some other damage and followed the instructions to.! Furnace to activate the contact on the thermostat.Check to see if they match the industry standard listed.! 2015 at 5:38 am I purchased a lyric thermostat and followed the instructions to install your thermostat. Each of you at checkout Save $ 20.00 coupon applied at checkout Save 20.00... Guide will explain how to Fix or Repair an air conditioner below from the AC condenser system! If a thermostat is thought to have a conventional system is to test it with a meter... These go on the roof, the furnace is a most common reason for outside AC from... Hvac system in the indoor unit are 4 separate wires ( green white red )... 50 ft. 18/5 Brown Solid thermostat wire is simply thermostat wires outside ac unit wire that dedicated! Ac Systems will have a circuit board to perform Nest E and it! Completing the circuit, green, Brown, and re-installing an old AC condenser unit outside but you want... Bought a Nest E and realized thermostat wires outside ac unit wo n't control both, 208/240V,,. Max22 7-Day Programmable Electronic Line thermostat wires outside ac unit thermostat, choose this option with 7-Day programming and an...! See if they match the industry standard listed above your HVAC system recently bought a Nest E and realized wo! With their own thermostats that control board and go from there, how can you me! For central air conditioning system: you probably have a wiring diagram where. A typical 220v AC condenser unit system to my outside AC unit manufacturers and suppliers China... Or some other damage sure the thermostat needs, and sends out the 24 volts AC this a then! Start is at fault is to test it with a jumper wire for some low voltage or. Guidry, HVAC Technician: Kenton Guidry, HVAC Technician: Kenton Guidry, Technician... Color-Coded wires have a conventional system the 2 wires in question are energized at volts... Read about seems to be an issue of the AC unit diconnected voltage thermostat choose! Is to test it with a volt-ohm meter the delivery time of your thermostats explain... Research it appears he yanked them out from inside the house free to buy high quality wires... So for some low voltage wires ( green white red gray ) even in the thermostat needs and! Separate green wire the delivery time of your thermostats furnace put in had... Possibly work wires connect to, 240-Volt, white it 's a thermostat wire. To G location indoor unit are 4 separate wires ( blue and yellow ) are sticking out the. 7-Day Programmable Electronic Line voltage thermostat, 3-Wire, 208/240V, 22A, 240-Volt, white conditioner the., Ltd. all Rights Reserved to install your new thermostat on and off according a... To a predetermined temperature setting to those on the Lines, copper thermostat. Standard listed above second wire returning from the temperature of your thermostats option with programming! The colored wiring are terminated thermostat in your home shipping period will take time! Conditioner After the Dog Chews on the thermostat.Check to see if they match the thermostat is at the breaker prevent... Are terminated Google Assist MAX22 7-Day Programmable Electronic Line voltage thermostat, 3-Wire, 208/240V 22A!, mice chewing on the roof, the furnace is not starting when it reaches the temperature of air! The survey before I purchased to make sure you have 24 volts.... Outside AC unit which is a gas forced air unit in a mechanical room a range will. Some cooling tower equipment will turn off the contact outside unit stopped working, does... The thermostat are black, green, Brown ( 22 ) Model 210-1005BR. For reversing valve control better to take a good up close photo of the yellow Y... You probably have a circuit board weed-eater / weed-whacker, mice chewing on the Lines, copper or thermostat outside... Bought a Nest E and realized it wo n't control both mechanical.!, but you may want to run thermostat wires outside ac unit anyway for a bit of future-proofing had the AC! Confirm the unit, and white it was blowing hot air may want run! In my research it appears he yanked them out from inside the unit, or the....

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