The wire, breaker (to protect the wire), and type of breaker must be correct and is reflected in the “minimum circuit data”. The tech will say no problem. Here are 14 great ones, Home Inspectors don't have to be old white guys, Animals, skeletons and creepy home inspection stuff 2020, Fall maintenance checklist for Minnesota homeowners, Q&A: "What causes black stains on my walls along the stud lines? He also said that while this is a common practice, it is also a poor … Overload protection is built into the compressor itself. Some say that you can over-fuse the AC up to 40%. The rules for protection to motor circuits are different than for circuits with simple resistive loads. No such thing as a little wrong. Also consider that the condenser may have internal wiring matched to the Max Fuse/Breaker Rating indicated on the label, and an older oversized breaker may not trip if the compressor motor locks up … which could complete fry the equipment … :shock:, IMO report it as a defect needing evaluation/repair and call it a day … for pricing and availability. Here is a good explanation I picked up somewhere: A/C condensers contain a hermetically sealed compressor motor as well as a fan to circulate air across the coils. Again, in the case of air conditioners, we don't need to match up the size of the circuit breaker to the wire sizes. The vast majority of mini splits require 208/240 volts. Is it safe to stay in hotels during the pandemic? The #1 question asked by NEW MEMBERS. Für nähere Informationen zur Nutzung Ihrer Daten lesen Sie bitte unsere Datenschutzerklärung und Cookie-Richtlinie. this may be on your dime, but well worth it. So the breaker usually trips after the air conditioner has been running for awhile. Depending on the make and model panel that you're working with, the main breaker may be located at the top or bottom centers of the panel or at the top or bottom, left- or right-hand side. BKR. 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. Eaton 60-Amp 2-Pole Non-Fusible Light-Duty Enclosed Molded Case Switch Disconnect. Mickey is the resident heating and air conditioning expert. Ask Our Pros-Owner Assistance - NO DIY advice will be given. label attached to the appliance. “it draws a much higher amount of current than it does after it is running.”, "The high “inrush” current can exceed the rating of a breaker or fuse sized to protect the wire. Components – Coils, Heaters, Motors, etc. Was there a fused 30 amp AC disconnect at exterior? Yahoo ist Teil von Verizon Media. Depending on the BTU capacity amp requirements can range from 15 to 45 amps. Good evening, Wifey and I had an inspection done on a house we are buying. Start up amps can be in the 60-amp range. From there, the water was either stored in a cistern or exited the house through the sewer system. Types of Air Conditioners and Their Electricity Requirements Mini Split Air Conditioner Electricity Requirements. 40: 8: 55: 6: 70: 4: ... To determine the right circuit breaker size for an air conditioner, we look at both the minimum and maximum size allowable. The specs are: Lotta CMI logo’s on the website too—:shock:----:lol: Lotta dirt in the ground this time of year----! MAX. However, if the overcurrent device is sized to protect the wire against overloads, the device might trip, and the machine would not be able to start. One thing that many people shopping for an air conditioner forget to consider is the electrical component. If you aren’t sure what you need, consult a professional who can advise you. Wir und unsere Partner nutzen Cookies und ähnliche Technik, um Daten auf Ihrem Gerät zu speichern und/oder darauf zuzugreifen, für folgende Zwecke: um personalisierte Werbung und Inhalte zu zeigen, zur Messung von Anzeigen und Inhalten, um mehr über die Zielgruppe zu erfahren sowie für die Entwicklung von Produkten. 109. I use the simplified chart above to help determine this. Cheap fix, make the realtor get it taken care of for you. Cut off the excess wire to make a neat connection. None of them will change the breaker when called out to confirm this. I also am getting the impression from this thread that it is not OK. Turn the main service disconnect breaker back on. What’s the Difference Between Voltage, Amperage, and Wattage? Strip off 3/4 inches of insulation from the ends of the red and black wires. Based in Colorado Springs, Colo., Jerry Walch has been writing articles for the DIY market since 1974. I do not seem to be able to find a definitive answer. ", Swedish-inspired makeover transforms modest-sized St. Anthony home, Subpanels: when the grounds and neutrals should be separated. Air conditioner | Electrical Disconnects . All Rights Reserved. Most central air conditioners will use 240 VAC with up to 60 amperes of load draw to power the device. 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. Remember the difference between voltage (electrical potential), amperage (electrical flow), and wattage (electrical power), and take note of the differences between the units you are looking at. MIN. He explained that under normal operations, the AC unit may pull more than 30 amps and would trip a 30 amp breaker so most installers use a 40 amp breaker. When you start looking for an air conditioner, you’ll notice that they are often labeled with three different electricity measurements: voltage, amperage, and wattage. If the label simply states “maximum sized over current protection” then any form of overcurrent protection may be used. Turn off the main service disconnect breaker. It may be wrong IAW the Mfg. Hard to breathe right? Which is it? The minimum circuit ampacity tells us how big the wire needs to be. now putting a 60 or a 100 on 8 gauge would be cause for concern. Author: Reuben Saltzman, Structure Tech Home Inspections. Also shud we install one the heats too. I'm not going to argue over breaker sizing, because I know what i do is proper, but if I have a condenser that calls for a 30 amp max breaker and I have 8 gauge wire I am not going to put in a 40 amp breaker cause that is what the wire calls for. Shorten the neutral wire as needed to make a neat connection. I just moved into a small one bedroom apartment and need to purchase my own through the wall AC. To determine the right circuit breaker size for an air conditioner, we look at both the minimum and maximum size allowable.

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