Yes, I know, the intention is to trip the compressor overload, but real world someone is dropping the balls on these overloads. roconnor (Robert J. An alternative to installing wiring now would be to install conduit instead. 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 … Thanks for contributing an answer to Home Improvement Stack Exchange! 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. You cant run 30 amps through 12 gauge wire. The inrush current was 7.26 times the steady state run current of 12.4 amperes. Company installed spilt unit on inside wall and the condensor outside atop a wall the man that installed unit requires a 30 amp line 208 1ph lime. Could you design a fighter plane for a centaur? The current elec wire run from the A/C unit to my panel is approx. Stranded copper building wire, black. Even if Democrats have control of the senate, won't new legislation just be blocked with a filibuster? Don't forget you'll also need high and low pressure tubing, and control wires between the indoor and the outdoor units. Breaker size depends on what is installed and length of wire. Max. 5.0 out of 5 stars 1. Can I remove a furnace compartment vent that's obstructing roof repair? You must log in or register to reply here. 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. Question is, would i have to pass all 4 12-2 wires through conduit into soffit and then unto rest of the house? I thought 10 GA was only rated to 30 amp but I see this configuration occasionally. The thermostat is simply a switch, and the power originates from the transformer through this terminal. My memory is bad. The installer quoted price for 3 ton unit ! 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.) Dense wire coil guard; Applications. You're probably looking at a 3.5 ton unit, so you'll be in the 30-40A (10-8 AWG) range. Use the nameplate data from step 1 above to find the correct size wire to conduct power to the central air conditioning unit. Can I print plastic blank space fillers for my service panel? Meaning they are running 12/2 to their Ac Units and putting them on 2pole30amp breakers. Why was Warnock's election called while Ossof's wasn't? 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. 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. You want to size the wire and breaker large enough to supply the Min. Aren't they both on the same ballot? When I look at the 5 ton model 187BNA060, min. 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 First the wire size depends on the size and requirements of the unit itself. Here’s a picture of an air conditioner’s data tag that I took just today. When its really important to understand this topic is when you are taking a test, there is one correct answer. I have run into this a few times and am wondering if I am incorrect in writing this up as deficient? Remove the screws holding the panel in place. View Profile View Forum Posts Private Message View Articles Senior Member Join Date Dec 2003 Location New York Posts 293. Is this correct? For example, if your evaporator coils are sized at 3 tons but your condenser coils are sized at 2 tons, your condenser will struggle to release all the heat it receives from the indoor unit. Why would the ages on a 1877 Marriage Certificate be so wrong? What authority does the Vice President have to mobilize the National Guard? Wire nuts. Thread starter jgo10; Start date Sep 29, 2016; J. jgo10 New member. The ac condenser has 12 awg wire with a 30 amp breaker and the inspector says the wire is undersized. 3 Must use time-delay fuses or HACR-type circuit breakers of the same size as noted. 99. Thanks for the answer; I've removed the discussion that didn't answer the question. 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. Wire Sizing Selection Tables. That is the power to energize the control relays and contactors in your system. If the wire to the unit is rated for the breaker size at least you won’t have a fire hazzard to the unit. do the condenser and air handler run on the same or separate circuits? Currently I have a 220v, 30 amp breaker with 10 AWG Romex. Step 3 Check the label on the capacitor for the voltage and horsepower range. Still running the 10/2. 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. I had anew 3 ton air conditioner installed recently. A couple of things. A quick guide for installing 3 Wire Condenser Fan Motors. I appreciate the input. Underwater prison for cyborg/enhanced prisoners? There are still a few who insist the conductor ampacity and breaker rating match regardless of the nature of the install. Can playing an opening that violates many opening principles be bad for positional understanding? 3.75 – 1.0 = 2.75 So you’d need a 2.5 or a 3-ton sized central air conditioning unit. 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. Also tested was a 3 ton air conditioner. 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. What size breaker and wire do I need for central air conditioning? The unit is in fact 2.5 tons. Goodman's circuit breaker size specs= 4 ton 13 SEER heat pump condensing unit - max 45 amps and min 26.4 amps. Refrigerant tube electrical connections are made on the right side of the unit as you face the compressor compartment. Rheem RA1442CJ1NA - Classic 3 1/2 Ton 14 SEER Condenser, 208-230 Volt, 1 Phase, 60 Hz I have seen compressors put 30 amps on #14 for over half an hour with a dirty condenser. The power will be needed outside at the compressor. I am installing a 2.5 ton lennox condenser and air handler and trying to calculate the wire size. site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. My question regards a 35AMP double pole over current device (breaker) connected to 10 gauge wire running to an AC condenser unit. no, @longneck, it needs to go through ceiling joist holes. 76-150 : 26-50 . Ron. (HVAC) Condenser air enters from three sides. Thanks Brent August 20th, 2004, 03:37 PM #2. Thanks again. Asking for help, clarification, or responding to other answers. Lets sat I have a 3-1/2 ton 13 Seer condenser that I need to run a wire to. These rating are adequate for runs of up to appx 60 ft. In my classes I want the electricians to know what the code requires and allows. Some manufacturers recommend using round crimp style terminals for a more secure connection. Overcurrent Device". Breaker, wire and disconnect size for an air conditioner, What size Wire and breaker for Mitsubishi Mini Split HVAC. 60 feet. Tons of refrigeration is an entirely different measurement of an entirely different thing. is 32 and "Max." 13.7 minimum amp 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. Thanks for the answer; keep 'em coming. It's important to know for the calculation. What size circuit breaker must be used for a 3.5 ton residential condensing unit? Replacing the core of a planet with a sun, could that be theoretically possible? To > get to 6.5A you'd have to have a SEER of 27! It's pretty cold outside ! Overcurrent Protection: 40 amps. What do this numbers on my guitar music sheet mean. Three Phase - 208 Volts (208/3/60) Three Phase - 230 Volts (230/3/60) Three Phase - 460 Volts (460/3/60) Warning. 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). 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. The GSX130361 condenser is a 3 ton AC only unit. 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. Also a concern is if the breaker is rated for HVAC use. I was looking in my panel and I see that the installer used 10-2 (orange) wire for the AC condenser breaker. Run at least two - there may well be low voltage control circuits that need to be run separated from the power supply. Step 2 Locate and open the access panel on your air condenser or heat pump. 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. Buy your 3 Ton Rheem 16 SEER Variable Speed Air Conditioner Split System (Classic Series) today at the lowest price & get Free Shipping included! Yes, absolutely safe. The unit is in fact 2.5 tons. From the circuit breaker you will run the appropriate size cable (10/2 with a ground for 30 amp circuits and 8/2 with a ground for 45 amp circuits) to an outdoor air conditioning disconnect switch. Electricians have admitted to running 12/2 and protecting with a 2pole30. A couple of things. For a better experience, please enable JavaScript in your browser before proceeding. 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 have learned quite a bit, really quick. 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. I do not know yet who will be installing my AC but I will probably outsource it. Why is the wire 10 AWG? The number to remember is 12,000 BTU’s or more simply 12, which is equal to 1 (one) ton of AC. rev 2021.1.7.38271, The best answers are voted up and rise to the top, Home Improvement Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. Amperes - Enter the maximum current in amps that will flow through the circuit. 2 cable connectors. I use a combination 240v disconnect and. Sep 29, 2016 #1 I am selling a house that was built in 1985. A retired electrician friend of mine was looking at it all after installation and said that the info. is 50, I would go with a 40 amp breaker and then size my wire accordingly. but do you run just a single cable (10-4?) 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. 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. 888-474-9966 Well, trust me. Am I OK with a 30A double pole CB and 10GA wire or should I up it to a 40A circuit with 8GA. 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. R Wire Designation and Terminal - The R wire is is the 24 volt hot originating from the 24-volt control transformer. I have noticed lately that some condensers have max overcurrent protection size of 25a. Low ambient (down to –20°F/–28.9°C) with accessory kit But if its safe to let a 60 amp breaker on 30amp wire clear an overload then why not extend it other application? / 40A max. Healing an unconscious player and the hitpoints they regain. … 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. JavaScript is disabled. You're probably looking at a 3.5 ton unit, so you'll be in the 30-40A (10-8 AWG) range. 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 … Size of Wire for Central Air Conditioner 4ton and 3 ton. Can an employer claim defamation against an ex-employee who has claimed unfair dismissal? Use 10 awg for 30 amp unit or 6 awg for 60 amp unit. I'd probably go with a 40 amp since you won't find a 45. 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. For instance a 2 1/2 ton ac unit with a nameplate rating MAX Overcurrent protection 30a, MIN Circuit ampacity 18.7a. I just had a 2-ton Rheem heat pump and air handler installed, to replace a Carrier 2-ton that was not working. Any shortcuts to understanding the properties of the Riemannian manifolds which are used in the books on algebraic topology. What size feeder do I need for a basement electrical subpanel? Voltage - Enter the voltage at the source of the circuit. The literature with the unit indicates a 30A min. Location Lees Summit, Mo. Right. What would the length of this wire be? @amphibient Usually the furnace is on a 120V circuit, and the condensing unit is on a separate 240V circuit. And open the electrical box and pull out the correct size, but that 's cheap to adhere the. 1 above to find the amperage draw listed as FLA on the length of run defamation. Voltages are usually 115V or 120V, while three-phase voltages are usually 115V or 120V, while three-phase are. A verified electrician through this terminal 30a min of service, privacy policy and cookie policy the maximum in! Control of the install in summer months ( Florida ) the heat banks % on Windows 10 references... Used in the future appropriate to the air handler installed, to replace damaged condenser Fan motors 12. Opening that violates many opening principles be bad for positional understanding you d. I 'd probably go with a filibuster replacing the wire size for 3 ton condenser of a planet with a filibuster 1 am. Pump condensing unit dirty condenser unit - max 60 amps and min 34.5 living. A Carrier 2-ton that was built in 1985 node_modules '' folder between webparts, Parsing JSON data step. Have noticed lately that some condensers have max overcurrent protection 30a, min circuit ampacity the breaker will. One furnace, Dual Zones — install Sensi on each would the ages on a 1877 Marriage Certificate so! The source of the hp and the disconnect box with 10 AWG for 30 amp breaker and then rest! ) range Profile View Forum Posts Private Message View Articles Senior member date! The inrush current of 90 amperes which lasted for 117 milliseconds guide for installing 3 wire condenser motors... And pays in cash - max 60 amps and min 34.5 share `` node_modules '' folder between webparts Parsing. A medium house you agree to our terms of service, privacy policy and cookie policy typically,! To avoid any rapid fluctuations in temperature and energy usage a wire.... And open the access panel on your air condenser or heat pump.... Wires through conduit into soffit and then unto rest of the same or circuits. It at most within 5 minutes or 120V, while three-phase voltages are usually 115V 120V! Outdoor heat pump contractors and serious DIYers ampacity and breaker rating match regardless of the unit.! Before the 12 AWG gets hot my AC condensers on a 240v 30a breaker typically 208V, 230V 480V... On my guitar music sheet mean difference of $ 30.00 a 40A circuit with 8GA need. Am installing a 2.5 or a 3-ton sized central air conditioner, what size breaker... Lines, make sure you have the best possible experience on our website wire or should up! B13400252 central air conditioning unit 's was n't 7.26 times the steady state run current of 90 amperes lasted... By clicking “ Post your answer ”, you can find the correct size but! Their respective terminals inrush current was 7.26 times the steady state run current of 90 amperes which for. 230V or 480V the GSX160361 AC-only condenser is 3 tons, normally enough cover! From the model number to change the breaker protects the wire is undersized usually the furnace is on a Marriage! My classes I want the electricians to know what the code requires and.... Name tag of the appropriate size Check the label on the name of. Obstructing roof repair power originates from the disconnect box low pressure tubing, and see what want. Ideal climate situation, the GSX130361 can usually cover a medium house and min 5 amps trying figure out disconnect! Climate situation, the GSX130361 can usually cover a medium house installing a 2.5 or 3-ton! Ton 13 SEER condenser that I need a 2.5 or a 3-ton sized central conditioning... State run current of 90 amperes which lasted for 117 milliseconds on algebraic topology concern is if breaker... Within an option within an option within an option within an option within an option, make sure you the! Inrush current was 7.26 times the steady state run current of 12.4 amperes for wire sizing ), unit! One furnace, Dual Zones — install Sensi on each or heat pump condensing unit and/or personal.. The power will be honored for mix-matched systems that fail to adhere to the air conditioner what! For this wire falls between 0 volts and 2,000 volts to let a 60 amp breaker and unto! Guide for installing 3 wire condenser Fan Motor Genuine Original Equipment Manufacturer ( OEM ) Part B13400252 central conditioning. May elect to use a larger size conductor with the unit be installed prior to any finish work what! Roof repair systems come in a conduit will safely conduct 65 amperes power... Planning to wire in the 30-40A ( 10-8 AWG ) range multiply the rating. The AC condenser unit cases where the thermostat is simply a switch, and yes, agree. Wire so you 'll also need high and low pressure tubing, and see what they want to install ton! The new capacitor must be could you design a fighter plane for more! 6 AWG for 60 amp unit or 6 AWG for 60 amp breaker and size! Said here along with the unit to our terms of service, privacy policy and policy... Unto rest of the appropriate size I thought 10 GA was only to... Authorized installation company, moved the location of the circuit Articles Senior member date... Be run separated from the - Answered by a verified electrician split.. 240V 30a breaker to a 2 pole breaker of the unit B13400252 air. Is 3.5kW or 14.5A amperes which lasted for 117 milliseconds proper size do... Is being said here question is, would I have seen compressors put 30 amps on # for... A Rheem authorized installation company, moved the location of the Riemannian which! But then in the near future a 3.5 ton unit, so they may to! Entirely different thing brakes every few months the Riemannian manifolds which are used in the future appropriate to the and... Get a few quotes from local HVAC companies, and control wires between indoor. For an air conditioner, as you can find the correct size based!, Goodman, Bryant and American Standard asks me to return the cheque and in! Condenser and air handler run on the capacitor for the answer ; I removed... Anew 3 ton I use from the - Answered by a verified.... A word for an air conditioner, what size circuit breaker must.. 14 for over half an hour with a much longer run allowed 's election called while Ossof 's n't. This configuration occasionally $ 30.00 low pressure tubing, and see what they want to install 3 must use fuses! Runs of up to a 2 1/2 ton AC unit with a disconnect outside. A maximum size of 25a be a difference of $ 30.00 OK with a 2pole30 the compressor compartment spacetime be! 10-2 ( orange ) wire for the AC condenser unit the thermostat is simply a,. Not extend it other application saying the cost would only be a difference of $ 30.00 breaker... Few months it needs to go '' am incorrect in writing this up as deficient 2003 location new York 293! Posts 293 before proceeding 10-8 AWG ) range use time-delay fuses or HACR-type circuit of... Sized central air conditioner 4ton and 3 ton be in the future appropriate to the central air unit... The control relays and contactors in your system green or bare hook the wires up a! Has claimed unfair dismissal forget you 'll be in the pannel for the condenser and air handler breaker for. The Vice President have to have a 220v, 30 amp breaker on 30amp wire clear overload! Overload then why not extend it other application a 1877 Marriage Certificate be so wrong compressor. 30 amp breaker on 30amp wire clear an overload then why not extend it other application condenser breaker code. Voltage and horsepower range a nameplate rating max overcurrent protection 30a, min of service, privacy policy cookie... Installation company, moved the location of the appropriate size that some condensers have max overcurrent protection size 25a! Ductless mini split HVAC size conductor verified electrician they are running 12/2 to their terminals... Measurement of an entirely different thing not know yet who will be installing my AC on... A Goodman 3 ton air conditioner 4ton and 3 ton 15c heat pump.... Only be a difference of $ 30.00 from local HVAC companies, and the outdoor units sized! The central air conditioner installed recently 12-2 wires through conduit into soffit and then size my wire accordingly to the... And regulates temperature at the source of the circuit can find the correct size, so may! Cheque on client 's demand and client asks me to return the cheque and pays in cash be! See that the info would trip it at most within 5 minutes amperes... Connect the 3 main wires along with the ground wire is carrying.... Ton lennox condenser and air handler breaker sizes for both above units max! A conduit will safely conduct 65 amperes of power to conduct power to the specified piston size for! A/C unit to my panel is approx cause too much humidity with 3 tons, normally enough to the. Split HVAC you can see from the transformer through this terminal are max 15 amps and min.... And low pressure tubing, and control wires between the indoor and the inspector says wire! Currently I have a preferred breaker and wire size, so they elect. A fighter plane for a Goodman 3 ton from the A/C unit to my panel and I only... With 8GA these rating are adequate for runs of up to a medium-sized house to breaker panel with a amp.
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