what size breaker for a 4 ton ac unit

Electrical Question: I want to buy a stand-alone room air conditioner. It depends on the size and efficiency of the unit. If you want to run your central air conditioning we would need to install a 50 amp breaker not a 30 amp breaker. 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. Consultant to Engrs, Govt & Contractors. 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. Reuben Saltzman is a second-generation home inspector with a passion for his work. Take an Aptis listening demo test. Here’s how to determine what size wire you need. It's ok for this to happen here. AC Unit Size Calculator accurately estimates the size of the central air conditioner unit you should install in your house. 3.75 – (0.0) = 3.75 So you’d need a 3.5 or a 4-ton sized central air conditioning unit in hot and arid climates (southern California, Arizona, etc. 2 3 4. 4" x W 5. Since circuit breakers measure their capacity in amps, you must do a bit of math before coming to a suitable conclusion. 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. 20 amps It's a sticker the manufacturer puts on. Cart 0. I am thinking of 60 Amp for Air Handler (Indoor Unit) and 50 Amps for Compressor (outdoor unit). In an ideal climate situation, the GSX130481 can usually cover a larger house. Is that legit? 16 Amps should be sufficient. By multiplying the volts by amps you will receive total wattage. I would say If your AC draws a current of Say 10–12 Amps current, which could be easily known from its specification plate or Instruction manual, A circuit breaker of 1.5 times rating i.e. The breaker for this would need to be a 40 or 50A breaker again depending on what the manufacturer allows. Electric motor shorts. Get the cost of 1 ton, 2 ton, 4 ton and 5 ton ac unit. David, discusses replacing a breaker, wire size #6 copper: 10kw heat strip, 60 amp breaker. I wrote it up in the report as improperly sized conductors. The disconnect must be sized larger than the current flowing through so that it doesn't burn up, but is just a switch. If it says 15.1 amps, we need to step it up to 12-gauge copper wire. If the AC unit says that it's breaker should be a max of 20A, then use a 20A breaker. Polenin attended the New World School of the Arts and the University of Florida. 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. Again, in the case of air conditioners, we don't need to match up the size of the circuit breaker to the wire sizes. Phil. Take a demo test . roconnor (Robert J. OConnor) April 14, 2006, 4… Author: Reuben Saltzman, Structure Tech Home Inspections. 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. Thankfully, this simplified chart works for most of the stuff I come across as a home inspector. Buy With Confidence. The air conditioner specification plate calls for maximum breaker size of 20 amp. Products. It appeared the breakers should have been switched to accommodate the conductor size. 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 Check your air conditioner's wattage in its specification sheet. For instance a 2 1/2 ton ac unit with a nameplate rating MAX Overcurrent protection 30a, MIN Circuit ampacity 18.7a Electricians have admitted to running 12/2 and protecting with a 2pole30. ... (Packaged Terminal Air Conditioners) Units; Heat and Cool Air Conditioners ... 30 amps, you’ll need a wire gauge of 10. I am unsure . Air handler breaker sizes for both above units are max 15 amps and min 5 amps. Make sure you use the input BTU and not the output BTU, if both are listed. I am installing a 4 ton split unit (Goodman). In respect to this, what size breaker do I need for my air conditioner? What size breaker do I need for a 4 ton heat pump? It appeared the breakers should have been switched to accommodate the conductor size. Do they have to have a separately wired plug-in? If the minimum circuit ampacity says 14.9 amps, we're good with 14-gauge copper wire. If you are replacing an existing heat pump system simply locate your main breaker panel and identify the heating breaker. Breaker size depends on what is installed and length of wire. The breaker is sized for the protection of the wire and device. Enjoy! (You can see that, right?) 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. 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. It's all gross or creepy stuff we've seen over the past year as home inspectors. Whether your breaker is a 30 or 40 amp, wire size is crucial for performance. What size breaker for a 4 ton air conditioner unit? Since circuit breakers measure their capacity in amps, you must do a bit of math before coming to a … Goodman's circuit breaker size specs= 4 ton 13 SEER heat pump condensing unit - max 45 amps and min 26.4 amps. An OCPD is a generic tongue-twister for a circuit breaker or fuse. I am installing a 4 ton split unit (Goodman). The GSX130481 condenser is a 4 ton AC only unit. what size breaker and what size wiring do i need? What Size Breaker For Ac Unit. AC calculator uses your house size (square feet), climate zone, efficiency and equipment type (standard central air vs central heat pump) to show you exactly what size central air unit you need. I use the simplified chart above to help determine this. Electrical Wire Whip: Attach an electrical whip to the shut-off box and run it to the unit. If the wire to the unit is rated for the breaker size at least you won’t have a fire hazzard to the unit. Answer. As you can see, for the smaller AC the manufacturer specifies a wire size of 12 gauge minimum and a breaker size of 35 amps. The maximum size will be clearly labeled on the compressor label. This size panel, usually equipped with fuses or circuit breakers, is ideal for an average home with normal electrical demands. To determine the right circuit breaker size for an air conditioner, we look at both the minimum and maximum size allowable. Max hvac breaker size electrical diy chatroom home improvement central air conditioner electrical disconnect amperage home what most techs get wrong about wire sizing 2017 09 18 achrnews max hvac breaker size electrical diy chatroom home improvement the 3 best ways to determine amperage of circuit breaker wikihow checking wire size ac units 2 you. The GSX160481 AC-only condenser is 4 tons, normally enough to cover up to a larger house. The minimum circuit ampacity tells us how big the wire needs to be. Top Answer. What Most Techs Get Wrong About Wire Sizing 2017 09 18 Achrnews. You're probably looking at a 3.5 ton unit, so you'll be in the 30-40A (10-8 AWG) range. When we talk about air conditioning, a “ton” is the measurement of a units ability to cool. The circuit breaker also needs to be large enough to support the minimum circuit ampacity, which for this example would be a circuit breaker rated for at least 34 amps, which means we'd jump up to a 40-amp circuit breaker. Damage what size breaker for a 4 ton ac unit AC unit size Calculator accurately estimates the size of the area they cool flowing... Fraction of the unit that is installed and length of wire wire you New... Efficiency of the Arts and the University of Florida getting an undersized circuit breaker size for an (. Size of the unit breaker for this wire would probably have an of... Installing a 4 ton 16 SEER residential air conditioner ’ s a picture of an air conditioner Required. 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