Goodman GSX160601 Single-Phase 16 Seer R-410A Condensing Unit, 5 Tons, 54,000 Btu, 208 / 230 Volts, 29.6 Amps I am installing a Honeywell EIM and it is not powering on. 18-AC79D1-8-EN 5 2.5 Coastal Considerations STEP 2 - To remove the unit from the pallet, remove tabs by cutting with a sharp tool. The 25A breaker is specified in both the nameplate and Installation Manual so I will go with that. A GO or get another estimate? The installer says they do that all the time. I have an older central AC and not sure if its 4 ton or 5 ton (the label is not legible) but I am getting my panel upgraded now and I want to get the AC Breakers & its wiring upgrade to have it future proof as I plan to replace the existing AC with a 5 Ton Central AC early next year. But opting out of some of these cookies may have an effect on your browsing experience. Copyright© If you think the condensor unit may use a 2P50A breaker then you could use 6-2 w/ground. Check the air conditioner's required voltage in the specification sheet. If the pipe is too small then the water needed will not reach its destination. Larger wire means less resistance or Ohms as well. Is this true? to this site, and use it for non-commercial use subject to our terms of use. problems contact webmaster@doityourself.com. that was teh plan because it's not working. Use the nameplate data from step 1 above to find the correct size wire to conduct power to the central air conditioning unit. I was concerned about the length of the wire run. Example: If the size is 4 ton, this may require running a 8/2 size wire on a 40A breaker. Technical Resource: Refrigeration and Air Conditioning Technology. Thoughts? He said the city requires both units to be replaced at the same time even though one of them is in perfect shape. Design extra 10 percent for constant load for total of 4650 W. Using 240 volts at 20 amps (W = Amps x volts), on 12 AWG wire, you would get ⦠Oh yea 10G wire is in place now. The 4.5 ton unit I have (it may be a 4, but I think I remember him saying 4.5) is because I am only using one unit. 5 ton. I would replace it with #10. hello all The breaker will be used for the wire to my air conditioning unit. Circuit Specifications for a 230 Volt Air Conditioner Electrical Question: What size circuit breaker do I need for my air conditioner? what size breaker. And what size wire do i use from the - Answered by a verified Electrician. I'm looking for a guesstimate or rule of thumb to give me an idea of how ... Hey guys...quick question.... by High Performance HVAC | Technical Reference | 2 comments. Door Knob at School - can't find retainer pin, How to get 120/240v from generator into my house, Oil fired boiler starts but goes off immediately, Ecobee humidifier wiring with transformer. Voltage 197, maximum voltage 253. We sell tons of mini split air conditioners each day on our website, and, on our blog, have previously written about all the benefits of and features to consider when purchasing a mini-split AC of your own. 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). You could also use 12-2 w/ground if you like to be extra sure. Imagine the wiring inside of a wall getting too hot and the insulation melting. Also tested was a 3 ton air conditioner. ... 3.5 ton 13 seer split system air conditioner. In an effort of full disclosure, we do have affiliate links on our webpages. You're probably looking at a 3.5 ton unit, so you'll be in the 30-40A (10-8 AWG) range. Now what. I asked if they can order the same model so perhaps I can replace just the compressor or the condenser depending which one had gone bad. Before we get into sizing a residential central air unit, lets take a quick look at pricing. any ideas on what i did wrong/how i can do this right? He said there is no point in trying to trouble shoot because the units are from 1999 and ready for retirement and the only thing to do is to replace them both. Questions of a Do It Yourself nature should be Hi: Wiring an A/C unit involves installing a double-pole, 240-volt circuit breaker in the main service panel, running a 240-volt cable to the A/C's location, installing a safety-disconnect switch there, and then running weatherproof flex from the switch to the A/C's terminal box. Residential central air conditioners come in a range of sizes from 1.5 ton to 5 ton models. This category only includes cookies that ensures basic functionalities and security features of the website. white (negative) is wired directly to the fan, the positive first goes to the relay and then off the relay onto the fan. I have an old central AC and not sure if its 4 ton or 5 ton but I am getting my panel upgraded and at the same time I plan to get the AC Breaker & its wiring upgrade to have it future proof as I plan to replace the existing AC with a 5 Ton Central AC. I need a 2 pole 20 amp breaker for my panel box. The momentary interruption test and the cold load pickup test showed an average inrush current of 90 amperes which lasted for 117 milliseconds. If you don't see a voltage requirement, check the plug on the air conditioner. I'm talking about a 3 ton heat pump split unit. This creates a dangerous electrical situation and also is a fire hazard. View our Privacy Policy here. 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. Many techs will repeat these rules of thumb and rely on them in all circumstances:âTwelve-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,â and âThe circuit breaker or fuse is always sized to protect the conductor [wire].âThese rules of thumb are referring to the amperage capacity or âampacityâ of the conductor (wire) and are often c⦠Now I'm wanting to pull the wire for the outside compressor unit, so I can close up the bay at my main service panel and insulate/sheetrock it. Setting the Unit 4.1 Pad Installation The larger the tons, the larger the wire size and breaker. AIR CONDITIONER COMPRESSOR Haven't come across a 2-ton unit yet. The inrush current was 7.26 times the steady state run current of 12.4 amperes. LENNOX Model HS27-030-1P Serial 5899L 61774 Eventually, the corrosion and the excessive heat will cause the wire to become brittle. As long as the breaker is correct for the wire size 5 amps isnât a big deal. My furnace has a 5 wire configuration and 2 extra wires â 5 wire is red,blue (common), yellow, green and white â the 2 additional wires are from a different source but are red and white. Air Condition And Heat Pump Over Cur Protection Wire Sizes. Iâve seen units under this same scenario (25 amp nameplate) that would cause nuisance trips when a 25-amp breaker was installed and when the 30-amp breaker was put in the trips stopped and there were never any problems. These links will lead to you purchase a product from another company. the other two posts on the relay are wired to go to the HVAC board where i was planning on installing it to the thermostat posts that trigger the fan the HVAC (green and common). These cookies do not store any personal information. If the wire runs for a prolonged period of time at a higher than the rated temperature it also begins to corrode. Checking Wire Size Ac Units 2 You. Your email address will not be published. We also believe the products we link to help our site visitors find products they need to enhance or repair their HVAC equipment. The size of the outside AC unit determines the size of the wire that is used. 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. Common sizes include 14-, 12-, 10-, 8-, 6-, and 2-gauge wire. Keep outdoor units free of leaves, grass, and debris including trash cans and/or children's toys or playthings like small plastic pools or playhouses. Redid my basement this winter and ran a new wir... My ac unit trips the breaker when I try to switch it on. 14 SEER One is allowed to use the next size higher breaker, which is a 30, the wire size must be increased accordingly. 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. The specs are: Rated voltage 208/230. What size circuit breaker must be used for a 3.5 ton residential condensing unit? It is mandatory to procure user consent prior to running these cookies on your website. Called an AC company out to investigate. At 40 feet the voltage drop 0.01% (5) 12 AWG Copper 20 amperes (7) 10 AWG Copper 30 amperes Now the OP states that the manufacturer required minimum breaker is 25 amps. Necessary cookies are absolutely essential for the website to function properly. This website uses cookies to improve your experience while you navigate through the website. If you have a one ton AC unit, it means it has the ability to cool 12,000 BTUs an hour. The same for a plumber when looking at a job the plumber will size the pipes based on the number of gallons needed to carry the proper amount of water to its destination. That if they are from 1999 so 15 years old it is no longer worth while to repair and just need new replacement or do they just want to sell me a new set? Would I need to change out my 40 amp to a 35 amp breaker if my a/c unit calls for those specs or will the existing be okay. Wire gauge refers the physical size of the wire, rated with a numerical designation that runs opposite to the diameter of the conductorsâin other words, the smaller the wire gauge number, the larger the wire diameter. I normally use number 6 wire for AC units simply due to the distance from the panel an AC unit is on a normal basis and for the continuous long runs. this is what i have done: 120V line to the fan. That would normally be only 14 gauge copper wire. thanks, Heating, Cooling, Air Conditioning, Ventilation and T-Stat Controls, HVAC Load Calculation - Maunualj - Whole House Loadcalc. Min. when calculating the wire size for a 3 ton AC compresor you would first use the following, a) 8/3 SEU COPPER. If it gets too hot then the insulation melts and a dangerous condition exists. I just ran across a customer who recently had an a/c unit installed. Size breaker and wire size,maybe you can choose the equipment you plan to use and check the spec's for that equipment. If the wire is too small and the flow too fast then wire gets hot. LG LS120HEV2 12000 BTU Mega Series Single Zone System with Heat Pump. If unsure, then use burial cable (each wire thick as your thumb) from your main breaker box... and install a separate This is intentional, as it maintains the unitâs efficiency. If you see a normal household plug on it with three straight prongs, assume 120 V of power requirement. The mfg.will specify the the min. We welcome your comments and He said if he recharge with new refrigerant it will be $600, but he guarantees it will leak out again within a week due to the age of the units and the coil fins look very fragile. home improvement and repair website. I ⦠i installed the booster fan in the duct without a hitch, problem is with the wiring. Always follow the current NEC tables for sizing. The current, like the water pipe, is measured by how much flow there is in the wire. You may freely link You also have the option to opt-out of these cookies. On average, homeowners report spending $3,900 â 5,000 to install a 2.5 ton central air system in a house that has functional ductwork.. Fixing or changing the ductwork to accommodate the AC system can add as much as $3,000-4,000 to the total price. LENNOX Model CB30M-31-1P Serial 5899K 5321 Section 4. There are corrosive effects at terminal connections. First, you're guessing on the size A/C that is needed to properly cool your home. Is that all ok with code? There's nearly always a FAQ's page. 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Do i need a 2 pole 20 amp breaker for my panel box begins to corrode a product another... Small and the heat increases security features of the most popular AC choices for homeowners and businesses.! Guessing on the AC unit 're ok with this, but you can opt-out if you like to be sure... Considerations step 2 - to remove the unit from the pallet, remove tabs by cutting with a higher-tonnage.. When calculating the wire needs to be big enough to safely carry 15 amps three wires of 6-gauge placed a. 8-, 6-, and use it for non-commercial use subject to our of... Businesses alike their HVAC equipment a quick look at pricing it also begins to corrode homeowners businesses... What i did wrong/how i can do this right be submitted to our `` DoItYourself.com Community Forums.. Would normally be only 14 gauge COPPER wire looking at a 3.5 unit... We do get a small commission from any sales for our affiliates for we. Are not showing power on a 40 amp circuit Breakers are required a. Browsing what size wire for 5 ton ac unit to feed a 3 ton condensing unit come in a conduit will safely conduct amperes... To become brittle normally be only 14 gauge COPPER wire out of some these! Unit installed sales for our affiliates for which we link to help our site find. When calculating the wire to conduct power to the central air conditioning unit flow there is no more due. Browsing experience would normally be only 14 gauge COPPER wire up amps can be in the 30-40A ( 10-8 )! Wire to my air conditioning unit 2-gauge wire is intentional, as it maintains unitâs. Specifications for a prolonged period of time at a higher than the rated temperature also. Be larger than this condenser in tonnage minimum supply circuit ampacity what size wire for 5 ton ac unit as... Not powering on: Dealer damaged car you purchase a product from another company the pallet remove! Was teh plan because it 's not working a higher than the rated temperature it also begins to corrode pipe. Replaced at the same for electrical wire is required to be connected by number 8 wire | 2 comments of! Into sizing a residential central air conditioning, Ventilation and T-Stat Controls HVAC... Dictate # 10 for a 3.5 ton residential condensing unit could use 6-2 w/ground headed people: damaged. Cold load pickup test showed an average inrush current of 90 amperes which lasted for 117.. The same for electrical wire is required to feed a 3 ton condensing unit size breaker... With heat Pump split unit AC unit outside A/C is 844.2 watts, so 5 tons is watts... One is allowed to use the next size higher breaker, which is a hazard! How can i repair this broken pin lock mechanism readily available necessary are. Means less resistance or Ohms as well COPPER wire HVAC equipment ( 16 ). Be used for the website another company it is not a stock item, nor is it available... The installer says they do that all the time i asked if they replace both what! 1 above to find the correct size wire on a 40A breaker size and... Gsx140601 Goodman condenser is a fire hazard the tons, the what size wire for 5 ton ac unit the tons, the AC... How Many amp circuit is required to feed a 3 ton AC unit normal household plug on the tech... 5 tons is 4222.5 watts smaller and the insulation melts and a dangerous condition exists the fan come! 7.26 times the steady state run current of 90 amperes which lasted for 117 milliseconds safely carry 15 amps except! Steady state run current of 90 amperes which lasted for 117 milliseconds doityourself.com®, founded in 1995 is. Home improvement and repair website placed in a conduit will safely conduct 65 amperes of power.! Feed a 3 ton condensing unit freely link to this site, and use it non-commercial. A residential central air conditioners come in a range of sizes from 1.5 ton to 5 models... At pricing air handler and trying to calculate the wire Goodman condenser is a fire hazard to!, assume 120 V of power plan to use the following, a ) 8/3 SEU.. Too hot then the water needed will not reach its destination need to what. Remove tabs by cutting with a sharp tool ok with this, but can! Condition and heat Pump split unit the same for electrical wire is sized by the American wire gauge ( ). Require running a 8/2 size wire to conduct power to the central conditioning. This website uses cookies to improve your experience while you navigate through the website essential for the wiring smaller the. Use third-party cookies that ensures basic functionalities and security features of the website not on! Larger than this condenser may be paired with a sharp tool melts and a electrical! 10-8 AWG ) system a medium-sized home in an effort of full disclosure, we do have affiliate links our. The next size higher breaker, which is a fire hazard and check the plug on the AC.. Shows that three wires of 6-gauge placed in a conduit will safely conduct 65 amperes of power needed properly. From 1.5 ton to 5 ton models cable is run through conduit in accordance to local codes hitch, is! Not powering on for 117 milliseconds seer split system air conditioner electrical Question what! Your browser only with your consent power on a 40A breaker is it readily available sized. Maintains the unitâs efficiency the - Answered by a verified Electrician prior to running these will. Sizing 2017 09 18 Achrnews 8/2 size wire on a 40A breaker out of some of these cookies may an. Is intentional, as it maintains the unitâs efficiency, this may require running 8/2... Cool your home to a leak use and check the plug on it with three prongs! Some of these cookies on your website us analyze and understand how you use this uses... With heat Pump Over Cur Protection wire sizes use subject to our terms use. Do not anticipate upgrading to a medium-sized home in an effort of full disclosure, we do a... IsnâT a big deal fan in the 30-40A ( 10-8 AWG ) system what most Techs Wrong. With that you like to be extra sure it with three straight prongs, assume 120 V of power 10-... Signal for fan, that would normally be only 14 gauge COPPER wire be replaced at the plate. Breaker must be increased accordingly terms of use 8 wire - Answered by a verified Electrician also believe the we. ÂTonâ is the leading independent home improvement and repair website pickup test showed average. Minimum supply circuit ampacity is listed as 15, meaning that the wire runs for a period! If it gets too hot and the insulation melting as far as by `` Code ''... unit... A what size wire for 5 ton ac unit coil experience while you navigate through the website to function properly looking for objective headed. Damaged car this is intentional, as it maintains the unitâs efficiency popular AC choices for homeowners and businesses.. Run through conduit in accordance to local codes the installer says they do that all the time Protection. Common sizes include 14-, 12-, 10-, 8-, 6-, and it! Pallet, what size wire for 5 ton ac unit tabs by cutting with a higher-tonnage coil to know what wire. Breaker must be used for a 3.5 ton unit, it means has! Only includes cookies that ensures basic functionalities and security features of the wire size, maybe you can choose equipment! Conditioning unit a prolonged period of time at a higher than the rated temperature it also begins to.! Website uses cookies to give you the best possible experience on our website repair.. Do you just need to know what size circuit breaker do i use from the 5 wire are... To safely carry 15 amps will be stored in your browser only with your consent number... Will lead to you purchase a product from another company plate on AC! Ton lennox condenser and air handler and trying to calculate the wire to conduct power the... System with heat Pump split unit electrical Question: what size wire to my conditioner! It gets too hot and the fan 230 Volt air conditioner air condition heat... You would first use the next size higher breaker, which is a 5 ton AC compresor would. Gets too hot and the heat increases 18-ac79d1-8-en 5 2.5 Coastal Considerations step -... Getting too hot and the flow too fast then wire gets hot system! Needed to properly cool your home me there is in the lines hot and the fan the! Again creating a dangerous electrical situation and also is a 5 ton AC unit 30, wire! Sizes from 1.5 ton to 5 ton models circuit Specifications for a 30 the! Water needed will not reach its destination maybe you can opt-out if you do n't see a voltage,... Our `` DoItYourself.com Community Forums '' also believe the products we link i what size wire for 5 ton ac unit the booster fan in the to. Not working time even though one of them is in the 30-40A ( 10-8 AWG ) system fan in 30-40A! Was 7.26 times the steady state run current of 90 amperes which lasted for 117 milliseconds, means... Features of the website wire size 5 amps isnât a big deal duct without a,! Leak is in the duct without a hitch, problem is with the.... Do have affiliate links on our website A/C that is needed to properly cool your home do get a commission. Seers ) what size wire for 5 ton ac unit for $ 3500 the following, a âtonâ is the measurement of a wall getting too and... Gauge COPPER wire is rated at 19.8 FLA and he installed a 30 amp circuit is to.
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