The maximum size will be clearly labeled on the compressor label. Most of them are 9000 – 12000 BTU. Re: AC circuit Breaker Size Tadziu - The conversion of 1 ton = 3.517kW cannot be used to calculate input power to a A/C unit. Look on the service plate on the unit. Cart 0. In addition to working at Structure Tech, he is also a licensed Truth-In-Sale of Housing Evaluator in Minneapolis, Saint Paul and several other cities. The GSX160481 AC-only condenser is 4 tons, normally enough to cover up to a larger house. If it says 34 amps, like in the example below, we need 8-gauge wire. It's a sticker the manufacturer puts on. Top Answer. FLIR has a relatively new pocket-sized infrared camera with all of the bells and whistles of the much larger and expensive E6. This home electrical repairs question came from: Tracy, from Dallas, Texas. I mentioned that the minimum wire size for this air conditioner would have to be 8-gauge, and a 60-amp circuit breaker would normally be too large for that size wire... but it doesn't matter. The 3 Best Ways To Determine Amperage Of Circuit Breaker Wikihow. His experience also expands to astrophysics, masonry, electricity and general appliance repair. By multiplying the volts by … Reuben Saltzman is a second-generation home inspector with a passion for his work. 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. 11,675 satisfied customers. What Wire Is Required For A 2 Ton Ac Quora. Note: while I say circuit breaker throughout this post, what I really mean is the overcurrent protection device, or OCPD. However, just to be clear, you can't change out the breaker to match the unit if the wire sizes are still too small. Also a concern is if the breaker is rated for HVAC use. Any smaller and they could burn up before the breaker would trip. The maximum size … Check your air conditioner's wattage in its specification sheet. 1800-978-5628; Menu Search. The breaker for this would need to be a 40 or 50A breaker again depending on what the manufacturer allows. I was curious about the events that led up to the discovery, and it all came down to one person being very curious and very persistent. It's ok for this to happen here. Fast & Free Shipping - Price Match Plus Guarantee - Buy Now! Here’s a picture of an air conditioner’s data tag that I took just today. I wrote it up in the report as improperly sized conductors. 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. Make sure you use the input BTU and not the output BTU, if both are listed. You're probably looking at a 3.5 ton unit, so you'll be in the 30-40A (10-8 AWG) range. He's written about various different subjects regarding astrophysics and electrical circuits for various online publications. You're probably looking at a 3.5 ton unit, so you'll be in the 30-40A (10-8 AWG) range. ... 3.5 ton 13 seer split system air conditioner. Write down the maximum wattage it uses. The exact amps an electric furnace requires is solely based on the size of the furnace and its performance capabilities; however, typically electric furnaces require a draw between 60 and 80 amps. Yes this generator might power your central air conditioning unit but you are running into issues here. I assume I have a breaker at … read more 4 ton 13 SEER heat pump condensing unit - max 45 amps and min 26.4 amps. 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. The air conditioning unit is pulling too much current for the breaker to handle. The breaker for this would need to be a 40 or 50A breaker again depending on what the manufacturer allows. 3. Take an Aptis listening demo test. Do they have to have a separately wired plug-in? There is zero educational content in this post. Similarly, how many amps does a heat pump use? 13 SEER. This is a protective measure of the curcuit breaker to prevent a fire from occurring. Wires can be larger, but not smaller than this... for the most part. If it doesn't mention wattage, check the SEER rating of your air conditioner and the cooling BTU number. The ac should be installed prior to any finish work from what is being said here. Air Conditioners . Breaker size for 4 ton ac . If you see a plug with two diagonal prongs and one straight prong under it, assume 240 V of power requirement. The size of a breaker is determined by the amp draw. Our Classic Series includes features that help fight corrosion, reduce leaks and enhance the overall strength of your air conditioner so you can be confident in the way it performs. The ac should be installed prior to any finish work from what is being said here. Beside above, what size breaker do I need for a 4 ton AC unit? I recently had an informative email exchange with a past client that highlighted the discovery of some especially nasty water damage behind the stone siding at her townhome. The size of a breaker is determined by the amp draw. Most of them say they are for a single circuit. I have a heat/loss/gain report if that helps. An over sized circuit breaker could result in damage to AC unit and or electrical wiring. Take a look around any room full of home inspectors, and you'll notice we look a lot alike. The GSX130481 condenser is a 4 ton AC only unit. Before choosing an air conditioner for your home or space, gather the necessary information about air conditioner voltages and amps so that you can be sure you are getting the best fit for your money. Carrier® Comfort™ - 4 Ton 16 SEER Residential Air Conditioner Condensing Unit Item: 24ABC648A003 MFR: 24ABC648A003 We shut off the breaker, waited a few minutes, and tried again. roconnor (Robert J. OConnor) April 14, 2006, 4… Any help is appreciated. The minimum circuit ampacity also tells us the minimum size of the circuit breaker; it needs to be sized large enough to help prevent nuisance tripping when the air conditioner first turns on. Since it says to use a 20A, the wires should be 12 gauge or larger. What size breaker for a 4 ton air conditioner unit? Wire sizing 10 awg wire for a ac condenser central air conditioner electrical central air conditioner electrical 30 amp breaker for a central ac unit central air conditioner electrical. Table 310-16 shows that three wires of 6-gauge placed in a conduit will safely conduct 65 amperes of power. Divide the input BTU of your air conditioner by the SEER rating to get the amount of watts it requires, and write that down. One of the standard things home inspectors look at while inspecting an electrical panel is comparing wire sizes to circuit breakers sizes. For this unit to function, an indoor air handler or coil is required, and this unit is cooling only with no heating capacity on its own. If you have a one ton AC unit, it means it has the ability to cool 12,000 BTUs an hour. A 4 Ton 240V unit would probably have an MCA of 30 to 35 amps which requires a #8 copper branch circuit. What's unusual about this number on air conditioner data plates is that it often doesn't jive with the chart I listed above. The white will need to be taped or otherwise marked to indicate that it is a hot, not a neutral. 4 Answers. The Goodman GSX130481 AC condenser is designed to be 13 SEER. Society Can I Use A 230 V Air Conditioning Unit In 120. Is that legit? Hunker may earn compensation through affiliate links in this story. Similarly one may ask, how many amps does a heat pump use? To determine the right circuit breaker size for an air conditioner, we look at both the minimum and maximum size allowable. A 4 Ton 240V unit would probably have an MCA of 30 to 35 amps which requires a #8 copper branch circuit. When we talk about air conditioning, a “ton” is the measurement of a units ability to cool. The house has two Condensing units- 2.5 ton and 4 ton on 30 amp and 45 amp breakers, respectively, in the panel. Author: Reuben Saltzman, Structure Tech Home Inspections. The following breaker sizes indicate the heating element shown: 30 amp - 5.0kw; 40 amp - 7.5 Kw; 50 amp - 8.0Kw; 60 amp - 10.0 Kw; 80 amp - 15.0Kw; 110 amp - 20.0Kw It's all gross or creepy stuff we've seen over the past year as home inspectors. 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