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Using a lower gauge wire over a higher one is better because it can handle more current than necessary and keeps things running smoothly. Is the Circuit Breaker Size Listed on the Data Tag? Furthermore, we have provided tonnage table charts below if you are a visual person and need a better reference. 5. A small window unit rated at 5,000 BTUs has a current draw of about 4 to 6 amps. The amps for a 2 ton mini split varies in size, also know as a 24000 btu unit. When mounting into a hard ceiling do you typically mount to the joists or suspend from the roof rafters? This means you should have 2 of the 3 variables before you start, and youll need to determine the Watts. Thanks! This type of system can require a 30-amp circuit, so you would need 10-guage wire to handle the current. What size break will I need on my 10-2 wire for a 230V mini split. It depends on the size of your mini split in British thermal units or BTUs. For example, suppose you have a relatively large heat pump with 24,000 BTU, yet your wire is only a 12 gauge. 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. How many amp hours does an air conditioner use? It is recommended to use 14 gauge stranded wire for installation. Finally, divide the 10,557 watts by the voltage range of the AC. Connect the 3 main wires along with the ground to their respective terminals. In most cases, five times the average generated amount is sufficient but refer to your owners manual for specific details regarding your heat pump. 6 amps. 2 0.08 ton = 1,000 BTU/hr = 293.07 Watts 3 BTU and tons are often used interchangeably. All Rights Reserved. It will also depend on the voltage requirement of the heat pump. It depends on your specific unit. . It can quickly become overwhelming if youre inexperienced in this sort of thing. Depending on whether you are installing a single zone or a multi-zone unit, you will have a different number of connections. Thanks, Very good information, I have one question: I am planning to install an 18,000 BTU Mitsubishi ductless air condition. It is also critical to make sure that each indoor unit on a multi-zone system is wired to the same input that its line set is connected to. When looking at the label itself, only about nine of those labels may be of any use, assuming you are not a certified electrician anyway. 2 How many amps does a 18000 BTU Mini Split use? Youd want to remove the thousands portion of the number and remember that every 12,000 BTU of cooling capacity equals precisely 1 ton. How many amps is a 12000 BTU Mini Split? - KnowledgeBurrow.com Mini-splits have particular power requirements that are dependent on the model and size. Here, we have created a chart to help you better understand based on 1 to 5 heat pump unit draws. How Much Does 500 Watts Cost Per Hour? They dont have nearly the capacity of a central air conditioning unit, but a 2-ton mini-split can cool areas up to 1,200 square feet. Check the specs of your mini split. If the external unit calls for 40 amps and you run 14/2 wire from that outdoor unit to power the 4 indoor units, does the outdoor unit have its own internal breaker or current limiter built in, so in the event any of the 4 internal units start to fail, power to them is rapidly cut off as the draw on that line approaches 15 amps (vs the much more beefy 40 fed to outdoor unit)? In most cases, that number is the first or second pair of numbers appearing in the sequence.