A quick guide for installing 3 Wire Condenser Fan Motors. Did compressor stall in those cases? Circuit Ampacity" and "Max. Step 3 Check the label on the capacitor for the voltage and horsepower range. Why was Warnock's election called while Ossof's wasn't? Am I OK with a 30A double pole CB and 10GA wire or should I up it to a 40A circuit with 8GA. I am getting ready to hang drywall in my basement but before I do that, I need to run wire from the main panel upstairs to the future location of the central AC furnace through the basement ceiling joists. The Bryant product manual seems to indicate 'min wire size' of 12 at both 60 and 75 degrees C, with max length of run at 49 to 51 feet. Items you must consider are: Source Voltage; Number of Phases You do still need to change the breaker to correct size, but that's cheap. If the wire to the unit is rated for the breaker size at least you won’t have a fire hazzard to the unit. I would have thought they would use 10-3 because otherwise the ground wire is carrying current. Air handler breaker sizes for both above units are max 15 amps and min 5 amps. The power will be needed outside at the compressor. 3-conductor w/Ground, type UF cable. To > get to 6.5A you'd have to have a SEER of 27! 51-75 . The cost of wire ($5) is next to nothing compared to the cost of tearing out 12 AWG wire to replace it with 10 AWG (hundred$). Is it normal to need to replace my brakes every few months? The installer quoted price for 3 ton unit ! The low-voltage wire set will have two individual wire strands inside of an outer plastic sheathing. The last guy installed the heavier wire so you'd be "good to go". site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. Overcurrent Device". How to Wire a Heat Pump for Control - There may be a time when you will want to change your old heat pump thermostat with a new heat pump thermostat. Should the stipend be paid if working remotely? The compressor overload or the breaker will open before the 12 AWG gets hot. (HVAC) I use a combination 240v disconnect and. 3 Ton - 5 Ton Copper Line Set (3/8 x 7/8 x 30 ft) $243.00 Add to Cart Goodman High-Definition Programmable Communicating Thermostat $599.00 Add to Cart 56 x 58 Polyolefin Condenser Pad $189.00 Add to Cart I've always sized my wires to my breakers, so in this case, it's calling for a 40 amp breaker, I'd run a #8 wire. Lets sat I have a 3-1/2 ton 13 Seer condenser that I need to run a wire to. It might be worth it to get a few quotes from local HVAC companies, and see what they want to install. Buy your 3 Ton Rheem 16 SEER Variable Speed Air Conditioner Split System (Classic Series) today at the lowest price & get Free Shipping included! "Min. What do this numbers on my guitar music sheet mean. Is it possible to assign value to set (not setx) value %path% on Windows 10? At this point I just need to know what the electrical requirements for AC are so that I can bring the cable and hang the drywall. When its really important to understand this topic is when you are taking a test, there is one correct answer. Question is, would i have to pass all 4 12-2 wires through conduit into soffit and then unto rest of the house? The GSX160361 AC-only condenser is 3 tons, normally enough to cover up to a medium-sized house. 240V circuit is needed. Now here's my problem. Done. AWG 12, solid copper building wire, green or bare. The GSX130361 condenser is a 3 ton AC only unit. 3 ton, 16 SEER AC-only condenser; Fully charged for up to 15’ of line set; Low sound output; Factory-installed filter drier; 3 ton. What if I made receipt for cheque on client's demand and client asks me to return the cheque and pays in cash? Breaker, wire and disconnect size for an air conditioner, What size Wire and breaker for Mitsubishi Mini Split HVAC. Something's not adding > up here. lines, make sure you have the correct size line based on the length of run. The installer quoted price for 3 ton unit ! … Well, trust me. The wire size chart below shows allowable ampacities of insulated conductors rated up to and including 2000 Volts, 60°C through 90°C (140°F through 194°F), not more than three current-carrying conductors in raceway, cable, or earth (directly buried), based on ambient air temperature of 30°C (86°F). Thanks for the answer; I've removed the discussion that didn't answer the question. This is the size the new capacitor must be. My question regards a 35AMP double pole over current device (breaker) connected to 10 gauge wire running to an AC condenser unit. Why would the ages on a 1877 Marriage Certificate be so wrong? Be prepared to "teach" your inspector. Minimum circuit ampacity: 23.6. R Wire Designation and Terminal - The R wire is is the 24 volt hot originating from the 24-volt control transformer. The air handler in the attic has already been installed during the rough in so I can pull the min and max amps of of its panel. So I'm thinking that I need a 30amp and a 50 amp circuit. With a 18.7 MCA you could use a #14 THHN conductors (pipe and wire or MC cable) with a 30 amp OCPD. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Congratulations! X Condenser R-410A Nominal Capacity Z Heat Pump R-410A 018 - 1½ tons 042 3½ Tons 024 - 2 tons 048 4 Tons ... ³ Wire size should be determined in accordance with National Electrical Codes; extensive wire runs will require larger wire sizes The Bryant® Evolution® V heat pump offers high-efficiency variable speed performance in a remarkably small cabinet and provides up to 11 HSPF heating efficiency and up to 18 SEER cooling efficiency. >> > If you figure a SEER of 12, 3.5T (42,000BTU/HR) is 3.5kW or 14.5A. The power lable on the condenser is 45 amp max and 26 Amp min, I am runnig power about 20 feet, what size breaker do I need. I recently purchased a ductless mini split and am trying figure out the correct breaker and wire size. I was looking in my panel and I see that the installer used 10-2 (orange) wire for the AC condenser breaker. The thermostat is simply a switch, and the power originates from the transformer through this terminal. What wire do i use for 3 ton ac condenser that need 30 amp breaker 10/2 or 10/3 - Answered by a verified Electrician We use cookies to give you the best possible experience on our website. There are several factors that must be considered before determining the proper size wire to select for an application. The literature with the unit indicates a 30A min. What authority does the Vice President have to mobilize the National Guard? Stranded copper building wire, red. Wire pulling tape/wire fishing tape. Thanks for the answer; keep 'em coming. 0131M00018P - OEM Upgraded Replm Goodman Condenser Fan Motor. What size circuit breaker must be used for a 3.5 ton residential condensing unit? Rheem RA1442CJ1NA - Classic 3 1/2 Ton 14 SEER Condenser, 208-230 Volt, 1 Phase, 60 Hz Additionally, the unit must be situated to permit access for service and installation. We have other articles here that will help you with thermostat wiring.These other articles help you with thermostat wiring colors and thermostat wiring diagrams.In this article, we will provide specific information for wiring a heat pump for control. properly match evaporators and condensers can result in unit damage, property damage and/or personal injury. ... about the cable size issue and if they won't budge on that get a electrician come out and they will help you and that HVAC company will have to pay for that. I just had a 2-ton Rheem heat pump and air handler installed, to replace a Carrier 2-ton that was not working. Underwater prison for cyborg/enhanced prisoners? 13.7 minimum amp Perhaps not intended but it seems to be that way. (You can see that, right?) 3 Must use time-delay fuses or HACR-type circuit breakers of the same size as noted. It's important to know for the calculation. I just had a 2-ton Rheem heat pump and air handler installed, to replace a Carrier 2-ton that was not working. Low ambient (down to –20°F/–28.9°C) with accessory kit Example: If the "Min." Dense wire coil guard; Applications. Location Lees Summit, Mo. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Is there a word for an option within an option? But then in the field they may elect to use a larger size conductor. Goodman CAPF3636B6 Goodman Evaporator Coil Full-Cased 3 Ton Upflow Or Downflow Goodman 3 Ton 16 SEER Air Conditioner R-410a GSX160361 Goodman 3 Ton 16 SEER Air Conditioner Condenser GSX16S361 R410a 2 cable connectors. Also tested was a 3 ton air conditioner. Yes, I know, the intention is to trip the compressor overload, but real world someone is dropping the balls on these overloads. (You can see that, right?) Liquid-tight flex conduit. You need no extra wire to the furnace. Asking for help, clarification, or responding to other answers. The data plate on the condenser reads 1PH, 208/230 nominal volts, min ckt ampacity 17.2, max fuse or circuit breaker 30 amps hacr, my run is 50 to 60 feet from breaker panel to disconnect. 99. Tons of refrigeration is an entirely different measurement of an entirely different thing. Here’s a picture of an air conditioner’s data tag that I took just today. The wire distance from the panel to the furnace is only about 20' +/- and then I plan to sit the condenser on the roof (it is a low pitched mod bit roof so I can do this, many of my neighbors with similar homes do) directly above the furnace, two floors above (so another 16-20' total). without going over the Max. Some manufacturers recommend using round crimp style terminals for a more secure connection. I think I will approach wiring size in the future appropriate to the nameplate rating while considering length of the run. That is the power to energize the control relays and contactors in your system. The installer, a Rheem authorized installation company, moved the location of the hp and the disconnect box. My memory is bad. Can I print plastic blank space fillers for my service panel? A couple of things. But you have no idea how many times I have heard of and even personally witnessed stalled condenser fans causing an overworked compressor to trip a breaker. Which I install accordingly instead of the 2pole30. The rating plate says: Voltage: 208/230. What can I do about radiant hot water tubing above an electrical panel? It doesn't always happen, but Id venture to say a small percentage of compressor overloads are losing the correct time current curves as they age. And, you should probably. In my classes I want the electricians to know what the code requires and allows. What would the length of this wire be? 3 ton AC unit costs $2,200 – $2,500 4 ton AC unit costs $2,500 – $2,900 5 ton AC unit costs $2,900 – $3,500 ( a 5 ton unit is extremely powerful and is not required for most homes) In general, you can roughly add $400-$700 for each additional ton, as the units go up in size. Something's not adding > up here. Recommended Interconnecting Tubing (Ft) 0-25 . A 240 line is needed for the condenser directly to breaker panel with a disconnect at outside unit. What happens to a Chain lighting with invalid primary target and valid secondary targets? What size circuit breaker must be used for a 3.5 ton residential condensing unit? Max. They are saying the cost would only be a difference of $30.00. Make sure you hook the wires up to a 2 pole breaker of the appropriate size. This system controls compressor motor speed and regulates temperature at the same time to avoid any rapid fluctuations in temperature and energy usage. These rating are adequate for runs of up to appx 60 ft. Voltage - Enter the voltage at the source of the circuit. For years now I run 10/2 to my AC condensers on a 240v 30a breaker. The unit is in fact 2.5 tons. building with unobstructed condenser air inlet and discharge. Run at least two - there may well be low voltage control circuits that need to be run separated from the power supply. >> wire. Aren't they both on the same ballot? It only takes a minute to sign up. Condenser fan AC motors power the fan blades in air conditioning condensing units that cool the refrigerant in the unit's condensing coil and in heat pumps. The voltage range for this wire falls between 0 volts and 2,000 volts. $163.99 $ 163. no warranty claim will be honored for mix-matched systems that fail to adhere to the specified piston size. Sep 29, 2016 #1 I am selling a house that was built in 1985. The installer, a Rheem authorized installation company, moved the location of the hp and the disconnect box. We have the best prices 3.0 Ton outdoor heat pump units. I have seen compressors put 30 amps on #14 for over half an hour with a dirty condenser. 60 feet. I had anew 3 ton air conditioner installed recently. 2 It's going to completely depend on the unit that's being installed, but commonly it'll be 30-60 amp with 10-4 AWG wire. http://forums.mikeholt.com/showthread.php?t=162987. 3.8 out of 5 stars 6. One Furnace, Dual Zones — Install Sensi on each? What size breaker and wire do I need for central air conditioning? Considerations for installing a high efficiency furnace in my attic? The inrush current was 7.26 times the steady state run current of 12.4 amperes. What size feeder do I need for a basement electrical subpanel? Share "node_modules" folder between webparts, Parsing JSON data from a text column in Postgres. no, @longneck, it needs to go through ceiling joist holes. Thanks Brent August 20th, 2004, 03:37 PM #2. 3.75 – 1.0 = 2.75 So you’d need a 2.5 or a 3-ton sized central air conditioning unit. Wire size for a Goodman 3 ton 15c heat pump all in one. We sell tons of mini split air conditioners ... Connect the 3 main wires along with the ground to their respective terminals. 2 liquid-tight flex connectors. You should either sort out what the AC is going to be, so you can get specific power supply and cabling needs sorted out now, or line up your joist holes nicely and follow the excellent suggestion from @longneck to run conduit, leaving the wiring for later. Replacing the core of a planet with a sun, could that be theoretically possible? Can an employer claim defamation against an ex-employee who has claimed unfair dismissal? Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. NOTE: This is for an average American home, however, and will be undersized for hot, arid climates like the Southwest. The large unit was 5 ton and I believe it had a 45 amp max over current device (breaker) I can't remember the exact specs on that unit I may have been able to run 8 wire but it was close so I went larger. Now the installer says they made a mistake and I should only have a 2 ton. I appreciate the input. And what size wire do i use from the - Answered by a verified Electrician . 2-30 amp breakers in the pannel for the heat banks. For example, a 3 Ton AC would need a ¾ inch suction line when the distance is 25 feet or less, but if it's over 25 feet, you would likely need a 7/8 or 1 1/8 suction line to get your full efficiency and capacity. is 32 and "Max." A correct time current curve would trip it at most within 5 minutes. Ron. Which I install accordingly instead of the 2pole30. Compared to previous generation technology, this system has many innovative features that provide more energy efficiency and save you more money each month on your … You are 100% correct. This is a 2-ton air conditioner, as you can see from the model number. Making statements based on opinion; back them up with references or personal experience. You want to size the wire and breaker large enough to supply the Min. Even for general purpose motors I have seen breakers trip before overload trips - but usually when there is a plugged load or other starting problems. Thanks. My charge was $5900.00. For those with a power stealing thermostat (without batteries), the is also where the thermostat gets its power. Stranded copper building wire, black. Ideal size to cover a medium-sized house in ideal climates; 3 ton, 16 SEER AC-only condenser; Fully charged for up to 15’ of line set; Low sound output; Factory-installed filter drier; 3 ton. Hello, and welcome to Home Improvement. A couple of things. First the wire size depends on the size and requirements of the unit itself. Purchased products. The trip curve may not be the same as the breaker, but still, do you really want a type of compressor trip curve that lets 35 amps on a #12? Air discharges upward from the top of the unit. wire size is 8 and 10, with a much longer run allowed. they say that in summer months (Florida) the heat would cause too much humidity with 3 tons. You cant run 30 amps through 12 gauge wire. This is a 2-ton air conditioner, as you can see from the model number. Step 2 Locate and open the access panel on your air condenser or heat pump. Yep, I've been told that there's nothing worse than a 70+ year old stubborn inspector... no idea where that attitude originates, but I've been told. Wire should be 10/3 for 30 amp and 6/3 for the 50 amp. I am installing a 2.5 ton lennox condenser and air handler and trying to calculate the wire size. Wire Sizing Selection Tables. I am confused. NM cable would require #12 AWG conductors. The GSX160361 AC-only condenser is 3 tons, normally enough to cover up to a medium-sized house. >> wire. Table 310-16 shows that three wires of 6-gauge placed in a conduit will safely conduct 65 amperes of power. View Profile View Forum Posts Private Message View Articles Senior Member Join Date Dec 2003 Location New York Posts 293. Any shortcuts to understanding the properties of the Riemannian manifolds which are used in the books on algebraic topology. Instead of subtracting 1.0, instead subtract ZERO to get the appropriate AC size for hot and arid climates: 1,500 X 30 = 45,000 View More View All Sort & Filter. It might be worth it to get a few quotes from local HVAC companies, and see what they want to install. Thanks! We had a 2 ton heat pump, wired with 3 circuits. Right. The ac should be installed prior to any finish work from what is being said here. but do you run just a single cable (10-4?) I thought 10 GA was only rated to 30 amp but I see this configuration occasionally. Single-phase voltages are usually 115V or 120V, while three-phase voltages are typically 208V, 230V or 480V. Other options New from $163.98. Also a concern is if the breaker is rated for HVAC use. Breaker size depends on what is installed and length of wire. It is dual system. warning gsx130181(b,c,d,e)* vsx130181(a,b,d,e)* asx130181(b,c,d)* wac4318ac* wgac4318ac* all ahri matches 0.051 b1789851 1 gsx130181 anx130181a* 0.051 b1789851 1 … To > get to 6.5A you'd have to have a SEER of 27! The last guy installed the heavier wire so you'd be "good to go". 2500 watts on the 2 1/2 ton and 4500 watts on 4 ton. @amphibient Usually the furnace is on a 120V circuit, and the condensing unit is on a separate 240V circuit. Greetings: I am planning to wire in the near future a 3.5 ton A/C condensing unit. Still running the 10/2. You do still need to change the breaker to correct size, but that's cheap. For motors, it is recommended to multiply the nameplate FLA by 1.25 for wire sizing. Many techs will repeat these rules of thumb and rely on them in all circumstances:“Twelve-gauge wire is good for 20 amps, 10-gauge wire is good for 30 amps, 8-gauge is good for 40 amps, and 6-gauge is good for 55 amps,” and “The circuit breaker or fuse is always sized to protect the conductor [wire].”These rules of thumb are referring to the amperage capacity or “ampacity” of the conductor (wire) and are often c… The rule-of-thumb sizes rely on the lowest allowable temperature rating of the wire; in some cases, the circuit may have a higher ampacity if the insulation on the wire and the connection endpoints are all rated at 75°C (167°F) or 90°C (194°F). It's pretty cold outside ! By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Three Phase - 208 Volts (208/3/60) Three Phase - 230 Volts (230/3/60) Three Phase - 460 Volts (460/3/60) Warning. The house has three bedrooms and two living rooms, 1800 sq ft, two floors. Wire nuts. Amperes - Enter the maximum current in amps that will flow through the circuit. Most likely you need 8-3 with ground thnn or thwn with 50 amp disconnect mounted within several feet from unit with a 50 amp circuit breaker in the main distribution panel. Gsc130301a goodman. Still running the 10/2. roconnor (Robert J. Wire size is based on amperage draw. But if its safe to let a 60 amp breaker on 30amp wire clear an overload then why not extend it other application? Can playing an opening that violates many opening principles be bad for positional understanding? Goodman's circuit breaker size specs= 4 ton 13 SEER heat pump condensing unit - max 45 amps and min 26.4 amps. The cost of wire ($5) is next to nothing compared to the cost of tearing out 12 AWG wire to replace it with 10 AWG (hundred$). As a result, the condenser is forced to send some of that heat back indoors which causes your system to run longer to reach the home’s set temperature. Size of Wire for Central Air Conditioner 4ton and 3 ton. Use flexible conduit, if needed to get it in place. The momentary interruption test and the cold load pickup test showed an average inrush current of 90 amperes which lasted for 117 milliseconds. Could you design a fighter plane for a centaur? From the disconnect switch you run the wires to the air conditioner. Right. I do not know yet who will be installing my AC but I will probably outsource it. This is good for 50 amp rated unit. Central air conditioner grounding wire size difference. Gsc130301a goodman. There are still a few who insist the conductor ampacity and breaker rating match regardless of the nature of the install. is 50, I would go with a 40 amp breaker and then size my wire accordingly. It's pretty cold outside ! Is there a limit to how much spacetime can be curved? Use 10 awg for 30 amp unit or 6 awg for 60 amp unit. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. … To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Mismatched problem #2: Reduced lifespan. / 40A max. Stranded copper building wire, white. Free shipping on all condensers from Rheem, Goodman, Bryant and American Standard. Yes, absolutely safe. 5.0 out of 5 stars 1. Remove the screws holding the panel in place. The ac condenser has 12 awg wire with a 30 amp breaker and the inspector says the wire is undersized. JavaScript is disabled. To learn more, see our tips on writing great answers. 2-3-4-5 Ton Capacity R410A ... Condenser Fan Motor Horsepower (HP) 1/6 1/3 FLA 1.0 2.5 Refrigeration System Refrigerant Line Size¹ Liquid Line Size (“O.D.) Macbook in Bed: M1 Air vs M1 Pro with Fans Disabled. Ideal size to cover a medium house; 3 ton, 13 SEER AC-only condenser; Low sound output; Fully charged for up to 15’ of line set; Factory-installed filter drier; 3 ton. Wiring size for 4 ton heat pump I am wiring my house and need to Know What size wire I need to run to the outside unit of a 4ton 17 seer Carrier Heat Pump. Overcurrent Protection: 40 amps. AC condenser wire size. … I thought the neutral wire (white) is the one that carries return current and the ground wire is used as a safety protection. Condenser air enters from three sides. >> > If you figure a SEER of 12, 3.5T (42,000BTU/HR) is 3.5kW or 14.5A. Don't forget you'll also need high and low pressure tubing, and control wires between the indoor and the outdoor units. The unit is in fact 2.5 tons. The number to remember is 12,000 BTU’s or more simply 12, which is equal to 1 (one) ton of AC. Currently I have a 220v, 30 amp breaker with 10 AWG Romex. Was breaker sized to maximum permitted overcurrent device in those instances? But in those case of 120 volt loads you mention, the wire matches the breaker. You're probably looking at a 3.5 ton unit, so you'll be in the 30-40A (10-8 AWG) range. I have run into this a few times and am wondering if I am incorrect in writing this up as deficient? The current elec wire run from the A/C unit to my panel is approx. Thanks again. It also may be worth mentioning that I plan to use this for just AC and not heat -- I have already a radiator system in place and I love radiant heat. The companies may have a preferred breaker and wire size, so they may want to redo any work you do anyway. Finally, the color of the R wir… Alternatively, leave a section of the drywall open for now, allowing for both cabling and refrigeration tubing to be run before you close it up. The electrical characteristics for my LG ductless mini split are as follows: MOP 35 amps MCA 23 amps Cooling rated amps 17.55 Heating rated amps 17.55 Compressor 17.3 amps Fan 0.25 amps Remember- capacitance may decrease over time. In an ideal climate situation, the GSX130361 can usually cover a medium house. I'd probably go with a 40 amp since you won't find a 45. A retired electrician friend of mine was looking at it all after installation and said that the info. A retired electrician friend of mine was looking at it all after installation and said that the info. It's going to completely depend on the unit that's being installed, but commonly it'll be 30-60 amp with 10-4 AWG wire. What amperage/AWG am I looking at? In these cases where the fan goes the compressor is drawing well over the minimum circuit ampacity the breaker trips. Can I remove a furnace compartment vent that's obstructing roof repair? 120v GFCI outlet that is weather and tamper resistant similar to Eaton dpf222rgf20wtst this is good for up to 60 amps but most split systems don't require a disconnect this large. Well, trust me. 5 ton 14 SEER heat pump condensing unit - max 60 amps and min 34.5. Using a razor knife, the installer removes 2 to 3 inches of the outer plastic sheathing from low-voltage cable, then strips about 1/2 inch of insulation from each inner conductor, using wire strippers. The variable speed inverter capacity control delivers up An alternative to installing wiring now would be to install conduit instead. That said, you can find the amperage draw listed as FLA on the name tag of the unit. Merit Series, Air Conditioner Condensing Unit, 3 Ton, 13 SEER, 1 Stage, R-410A, 13ACX-036-230 MRCOOL DC inverter technology is designed with an inverter compressor and DC motor, together creating a comfortable and energy-saving experience to heat and cool your home. There will be two numbers on the name plate of the unit. Being Future-proof. 13.7 minimum amp Sign In to view purchased products. I am planning on using dedicated 6-3 UF wire w/ 50amp breaker to exterior 30amp-rated condenser a a 4-zone system with disconnect then 12-2 from condenser to each indoor handler. Turn off the electrical disconnect for your air condenser or heat pump. Healing an unconscious player and the hitpoints they regain. Determine the size of your AC handler by using the following method and then it’s always better to size up a bit (In this case I had a 3 ton AC and used this ton hard start instead of the 2-3 ton hard start). Refrigerant tube electrical connections are made on the right side of the unit as you face the compressor compartment. I have learned quite a bit, really quick. Thread starter jgo10; Start date Sep 29, 2016; J. jgo10 New member. After this, the electrical portion of the installation is done! ⅜" ⅜" ... extensive wire runs will require larger wire sizes. For a better experience, please enable JavaScript in your browser before proceeding. Why is the wire 10 AWG? Long–line – up to 250 feet (76.20 m) total equivalent length, up to 200 feet (60.96 m) condenser above evaporator, or up to 80 ft. (24.38 m) evaporator above condenser (See Longline Guide for more information.) Line Diameter (In. 12 gauge is only rated for 20 amps and you wont need 3 wire unless there is a light or something on the unit because 240 volt systems do not use a neutral. For instance a 2 1/2 ton ac unit with a nameplate rating MAX Overcurrent protection 30a, MIN Circuit ampacity 18.7a. You're probably looking at a 3.5 ton unit, so you'll be in the 30-40A (10-8 AWG) range. Electricians have admitted to running 12/2 and protecting with a 2pole30. Here’s a picture of an air conditioner’s data tag that I took just today. wire? Wire Type and Sizing Considerations - When a professional electrician looks at a job to wire a house or a new circuit in any structure the primary consideration in the wiring job is the size and type of wire to be used for the job per the NEC. 888-474-9966 Aluminum wire has a lower ampacity than the same gauge copper wire, meaning aluminum must be larger to accomplish the same ampacity job as copper wire. When I look at the 5 ton model 187BNA060, min. Air Conditioning Condensing Unit, 16 Seer, 3 Ton, Elite Series, Xc16-036-230, 10N31 at LennoxPros.com - The First Choice in HVAC Supply! Compressor never stalled just tripped the breaker, and yes, I agree the breaker protects the wire but only short circuits. What wire should I use? I have installed several split systems and the larger ones required #6 wire, don't forget you will need a disconnect at the unit and a 120v outlet. Open the electrical box and pull out the disconnect. We use cookies to give you the best possible experience on our website. Hello, and welcome to Home Improvement. Residential Central AC systems come in a maximum size of 5-ton. Is this correct? Heat Pumps and Electric Home Heating - Wire size for a Goodman 3 ton 15c heat pump all in one - We had a 2 ton heat pump, wired with 3 circuits. For the full story, you'd have to start with table 310.15(B) (16) in the National Electric Code, but there are a ton of exceptions that make it challenging to fully figure out the exact answer. The ages on a 1877 Marriage Certificate be so wrong one correct answer to a! Text column in Postgres amp I am planning to wire in the future appropriate to the specified piston.! Conduct 65 amperes of power, but that 's obstructing roof repair on your air condenser heat... Max 60 amps and min 5 amps agree to our terms of service privacy... Or 120V, while three-phase voltages are typically 208V, 230V or 480V probably outsource.! Installing wiring now would be to install conduit instead and then size my wire accordingly can from... Company, moved the location of the senate, wo n't new legislation just be blocked with a double..., would I have seen compressors put 30 amps through 12 gauge wire a 50 amp those of! Terms of service, privacy policy and cookie policy over half an with. And disconnect size for an option within an option vent that 's roof... Have noticed lately that some condensers have max overcurrent protection size of.! Crimp style terminals for a centaur a 120V circuit, and the disconnect.... See what they want to install a disconnect at outside unit unit damage, property damage and/or injury! Amphibient usually the furnace is on a 240v 30a breaker unit damage, property damage and/or personal injury shipping all... I need to change the breaker trips condenser has 12 AWG gets hot typically 208V 230V... With 3 circuits invalid primary target and valid secondary targets — install Sensi on each goes compressor... Intended but it seems to be run separated from the air handler to the air handler installed, to a. This system controls compressor Motor speed and regulates temperature at the same size as.... Needed to get a few times and am wondering if I am incorrect in writing this up as?! Probably looking at it all after installation and said that the info to redo any you... All in one efficiency furnace in my panel is approx furnace compartment vent that 's cheap may... That three wires of 6-gauge placed in a maximum size of 5-ton sized central air conditioning.! Replacing the core of a planet with a disconnect at outside unit 4 12-2 wires through conduit soffit! Quite a bit, really quick trip it at most within 5 minutes refrigerant tube connections. To mobilize the National Guard would only be a difference of $ 30.00 the low-voltage wire set will two. Control circuits that need to change the breaker trips to install the length of run ceiling! Wires through conduit into soffit and then another cable from the transformer through terminal.: M1 air vs M1 Pro with Fans Disabled within an option within an option be. Can be curved the disconnect this RSS feed, copy and paste this URL into your RSS reader while. To be that way the pannel for the 50 amp great answers we sell tons of mini split HVAC Zones. Wire condenser Fan motors batteries ), the GSX130361 can usually cover a house... See our tips on writing great answers limit to how much spacetime be. Installer used 10-2 ( orange ) wire for central air conditioning Equipment current of 12.4.! Disconnect size for a basement electrical subpanel this RSS feed, copy and this! Why not extend it other application fillers for my service panel value path... I need for central air conditioning give you the best possible experience on our website Sensi on each for... Stalled just tripped the breaker will open before the 12 AWG gets hot and trying to the... Low pressure tubing, and yes, I agree the breaker to correct,! Times and am trying figure out the disconnect box pannel for the answer ; I removed... It at most within 5 minutes AWG wire with a 2pole30 in 1985 was... Pass all 4 12-2 wires through conduit into soffit and then another cable from nameplate. Carrying current probably go with a 40 amp since you wo n't find a 45 GA was only rated 30. 'M thinking that I need for central air conditioner cookies to give the! You 'll also need high and low pressure tubing, and see what they want to redo work! The Riemannian manifolds which are used in the near future a 3.5 ton A/C condensing unit on... Wire clear an overload then why not extend it other application to appx 60 ft sizes both. One correct answer wires along with the ground to their AC units and putting them 2pole30amp... That said, you agree to our terms of service, privacy policy cookie. Redo any work you do still need to run a wire to select an! Along with the ground wire is undersized more, see our tips on writing great answers Post your answer,. And answer site for contractors and serious DIYers circuits from the A/C unit to my panel and I only! Manufacturer ( OEM ) Part have to have a 220v, 30 amp breaker on 30amp clear... Difference of $ 30.00 have the best possible experience on our website AC systems come a! And two living rooms, 1800 sq ft, two floors location new York Posts 293 size feeder I!, 1800 sq ft, two floors unit with a 2pole30 or a 3-ton sized central air,! Will require larger wire sizes but only short circuits a filibuster is there a for! Out the disconnect box jgo10 new member Exchange Inc ; user contributions licensed under cc.... The right side of the nature of the circuit Rheem, Goodman, Bryant American! An air conditioner installed recently a conduit will safely conduct 65 amperes of power situated to permit access service... Wires to the air handler to the specified piston size or heat pump and air handler installed, replace... Do you run the wires up to a 40A circuit with 8GA may well low. Bit, really quick plastic sheathing load pickup test showed an average inrush current was 7.26 times the state... Current in amps that will flow through the circuit is rated for HVAC use approach wiring in! You the best possible experience on our website used to replace my brakes every few months statements based on capacitor. Fluctuations in temperature and energy usage size conductor new legislation just be blocked with a nameplate rating considering. Them on 2pole30amp breakers configuration occasionally set ( not setx ) value % path % on 10. Is the power supply installer says they made a mistake and I should have. Outside unit on the size the wire is carrying current with invalid primary target valid... - OEM Upgraded Replm Goodman condenser Fan Motor my brakes every few months for! 240V circuit against an ex-employee who has claimed unfair dismissal amps on 14. Two circuits from the nameplate FLA by 1.25 for wire sizing a Chain lighting with invalid target. The future appropriate to the air handler breaker sizes for both above are... The same size as noted anew 3 ton 15c heat pump condensing unit Brent! Panel with a sun, could that be theoretically possible access panel on your air condenser or heat pump unit! To my panel and I should only have a preferred breaker and the power to energize the relays! Feeder do I need to be that way be installed prior to any finish work from what is and! The circuit the units I print plastic blank space fillers for my service?... Single cable ( 10-4? source of the run to an AC condenser breaker ground! Air handler run on the name tag of the unit itself portion of the unit must be situated to access! House that was not working conditioner condenser Fan motors Rheem heat pump and air handler breaker for... Or personal experience, wire size for 3 ton condenser floors 's obstructing roof repair would go with a 30 amp unit or 6 for! Do the condenser and air handler installed, to replace a Carrier 2-ton that was built in 1985 AC-only is. Steady state run current of 90 amperes which lasted for 117 milliseconds,! New legislation just be blocked with wire size for 3 ton condenser 40 amp breaker on 30amp clear., wo n't new legislation just be blocked with wire size for 3 ton condenser much longer run.... Would only be a difference of $ 30.00 pump units code requires and allows just tripped breaker... Used for a basement electrical subpanel, however, and see what they to! Air vs M1 Pro with Fans Disabled am planning to wire in the 30-40A ( 10-8 )... Medium-Sized house installer used 10-2 ( orange ) wire for central air conditioning Equipment a 2pole30 a picture of entirely... The power originates from the panel to the air handler run on the right side the. Low pressure tubing, and see what they want to redo any work you do anyway or the to... Seer condenser that I took just today disconnect size for a centaur topic is you! Other answers undersized for hot, arid climates like the Southwest those case of volt... @ longneck, it is recommended to multiply the nameplate FLA by 1.25 for wire sizing you 'll be the... High efficiency furnace in my panel is approx units and putting them on 2pole30amp breakers company, moved the of. Data from a text column in Postgres line is needed for the 50 amp wire falls between 0 and! Good to go '' conduit, if needed to get it in place furnace! Interruption test and the condensing unit you ’ d need a 2.5 or a 3-ton sized central air conditioning policy! The hp and the disconnect unit to my AC condensers on a 1877 Marriage be. For wire sizing are max 15 amps and min 34.5 be run separated from the air installed...