what size breaker for a 2 ton ac condenser

3.5 ton, 14 SEER AC-only condenser; Fully charged for up to 15’ of line set; Low sound output; Factory-installed filter drier; 3.5 ton. With this increased power use, the heat increases. When we talk about air conditioning, a “ton” is the measurement of a units ability to cool. Two very important electrical components to know about are AMPs and volts. breaker too large for AC. Generally, what is the ampacity we see in the field when inspecting an air conditioning compressor circuit? Figuring out an accurate HVAC size involves 2 basic steps. The circuit breaker for this air conditioner circuit should be a 2-pole 30 amp breaker. There is a small room (8ftx8ft) attached with a sliding door in between. The max rated breaker listed is 45 in the air handler packet, but the 8kw strip came with a 60amp single pole breaker! ... Good question … most modern disconnects at the condenser are the pull-type. Dirty clogged filters can also cause the breaker … Once you have determined the sizing requirements for the cooling side of your heat pump system, you then need to select the proper supplemental heating element that is included with all of our heat pumps. The installer, a Rheem authorized installation company, moved the location of the hp and the disconnect box. The rating plate says: Voltage: 208/230. Learn all you need to know about AC volts and AMPs here. A "ton" is a unit of measurement used by the air conditioning industry. You could also use 12-2 w/ground if you like to be extra sure. The inrush current was 7.26 times the steady state run current of 12.4 amperes. So I am installing a new Goodman split 410a 2 ton unit with a 8kw heat strip and ran into something I have found mind boggling. 1 Poor maintenance can cause air conditioner breaker trips. STEP 1: Determine how many BTUs of heating and tons of AC you need. ft. home, the air conditioner would need to be 37,500 ÷ 12,000, which comes out to about 3 tons. Jim The term goes back to the production of ice. If an ac unit is labeled for a maximum 25 amp breaker and a 30 amp breaker was installed in the panel box would this be considered overfused? The best way to determine the perfect HVAC unit size is to have a Manual J calculation done for your house. The breaker in the panel is 40 amps. The air handler is what handles the temperature of the cooling/heating system. Larger wire means less resistance or Ohms as well. An air conditioner’s cooling capacity is expressed in BTUh (British Thermal Units per Hour) or tons (often referred to as “tonnage”). In the case of a 1500 sq. 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. The GSX140421 Goodman condenser is a 3.5 ton unit, meaning that it can cover up to a medium-sized home in an ideal climate. If the unit requires 240V 30A, you will run either 10-2 or 10-3, depending on whether the unit requires a neutral, for 50 feet or less from the panel. The Circuit Breaker Size for a 230 Volt Air Conditioner. LG LS120HEV2 12000 BTU Mega Series Single Zone System with Heat Pump. It has a peaked ceiling that is 20 feet at the highest point. Note: For 10/2 (30 amp) use 1/2″ conduit and for 8/2 (45 amp) use 3/4″ conduit. Long-line - up to 250 feet (76.20 m) total equivalent length, up to 200 feet (60.96 m) condenser above evaporator, or up to 80 ft. (24.38 m) evaporator above condenser … Breaker size depends on what is installed and length of wire. One ton of cooling capacity is equal to 12,000 BTUh. The installed didn't replace any wiring and left the 30amp breaker in for the 10kw...the 5kw has its own circuit too.The 10kw breaker starting getting hot and tripping. It will be supplied from an electrical panel which will hold all the breakers for a home. A 1-ton AC unit had enough power to make 1 ton, or mass, of ice in a … Bummer. Long–line – up to 250 feet (76.20 m) total equivalent length, up to 200 feet (60.96 m) condenser above evaporator, or up to 80 ft. (24.38 m) evaporator above condenser … I recently purchased a ductless mini split and am trying figure out the correct breaker and wire size. Well, an air conditioner usually trips the breaker because it's pulling in more amps than the breaker is rated for.That is, if you have a 20-amp breaker and the AC pulls 30 amps, the breaker trips. Wrong yes, but what are the consequences? Please let me know. You can most likely use 8-2 w/ground. Kevin, according to the specs for the air conditioner the circuit that should be installed would be a 30 amp 230 volt circuit using 10/2 cable with ground. Step 2: The air conditioner disconnect is connected to the air conditioner condenser with liquid-tight flexible metallic conduit, as shown in Figure 2. Is it necessary to put in a 30amp breaker? The main room is 480 sq ft (20×24). The size of an air handler is related to the size of the condensing unit. Minimum circuit ampacity: 23.6. Method 1: Manual J Calculation. Both offer a measurement of an air conditioner’s cooling ability over an hour’s time. Ac unit called for max size breaker of 30 amps. Dirty condenser coils will cause the air conditioner to draw more power. These factors include the extent of exposure to the sun and the outside air, the thickness, and type of outside wall insulation, the size of the house, type and number of windows and outside doors, the ceiling height, the age of the house construction etc. In the heat of the summer, one thing's sure to keep you cool and comfortable: a properly sized air conditioner. 2-30 amp breakers in the pannel for the heat banks. We had a 2 ton heat pump, wired with 3 circuits. That will cause the air conditioner breaker trip if the problem is not repaired. 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. Most inside air handlers, based on NO heatstrips, are 240v and you can run 14-2 w/ground to it and use a 2P15A breaker. RE: HHP230AKA 2.5 Ton 12 Seer H/P Cond Unit FCX3600C 2.5 Ton 12Seer H/P Air Handler AMFK10AHA 10KW Aux Heat Bank Unit will not start. I just had a 2-ton Rheem heat pump and air handler installed, to replace a Carrier 2-ton that was not working. AC Unit Size Calculator accurately estimates the size of the central air conditioner unit you should install in your house. Get the cost of 1 ton, 2 ton, 4 ton and 5 ton ac unit. The air handler is a fan blower, that blows the cold or hot air from the condenser unit outside or to the rest of the house. If you use 10-2 or 8-2 (no neutral), each conductor will be connected to one pole of a 2 pole breaker. If it's more than 50', run #8-2 or 8-3. The GSX130241 condenser is a 2 ton AC only unit. In an ideal climate situation, the … Ameristar™ M4AC4024D1000A - Air Conditioner, 2 Ton, 14 SEER, R410A, 208-230/1/60 Skip to the end of the images gallery Skip to the beginning of the images gallery If you have a one ton AC unit, it means it has the ability to cool 12,000 BTUs an hour. Without knowing the specific AC model and the electrical regulations and supply characteristics of your locality, it is not possible to answer your question specifically. We replaced the unit with a Goodman 3 ton 15c unit. The HVAC contractor hired by my general contractor installed a 3 ton Fujitsu Halcyon outside unit, a 24000 BTU unit in the studio at about 12 feet high. When the air conditioning system is running, if you measured the amperage, it would be roughly 80% of the RLA. 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. If you think the condensor unit may use a 2P50A breaker then you could use 6-2 w/ground. Electrical AC Power (Usually labeled L1, L2, and Ground) 2… DC Control Voltage (Usually labeled 1, 2 ,3) The AC electrical voltage will be 110-120 or 220-230 Volts. For the furnace, divide the BTU by the unit’s efficiency as a decimal. A … I had a question regarding the ac unit maximum breaker. I know this has been tackled on this sub before, (without a consensus being reached in the comments) but I need to talk about wire sizing and breaker sizing on residential condensers. The breaker size is typically about 125% of the total of the compressor RLA and the condenser fan FLA (full load amperage). This ampacity calculation is generally on the heat pump condenser on a label provided by the manufacturer. I am installing a 2.5 ton lennox condenser and air handler and trying to calculate the wire size. What Size Home Would Use a 2.5-Ton A/C Unit?. Currently I have a 220v, 30 amp breaker with 10 AWG Romex. The electrical characteristics for my LG ductless mini split are as follows: MOP 35 amps MCA 23 amps Cooling rated amps 17.55 Heating rated amps 17.55 Compressor 17.3 amps Fan 0.25 amps Max. When shopping for a new air conditioner, there are many different technical specs to think about. The momentary interruption test and the cold load pickup test showed an average inrush current of 90 amperes which lasted for 117 milliseconds. For the air conditioner, divide the number by 12,000 to determine the tonnage required. In some unit bundles, the required AC coil may be larger than this condenser in tonnage. Upon calculating your HVAC system size (tonnage), you will be shown a selection of systems that fit your recommended size. So you've determined that your AC is tripping the breaker, but you're clueless as to why. A 240 line is needed for the condenser directly to breaker panel with a disconnect at outside unit. … The result is the number of tons the unit is. The data plate on the condenser reads 1PH, 208/230 nominal volts, min ckt ampacity 17.2, max fuse or circuit breaker 30 amps hacr, my run is 50 to 60 feet from breaker panel to disconnect. A retired electrician friend of mine was looking at it all after installation and said that the info. Checked main breakers for both units and breaker on air handler. Ductless mini splits are one of the most popular AC choices for homeowners and businesses alike. Lets sat I have a 3-1/2 ton 13 Seer condenser that I need to run a wire to. Don`t want to argue but a 40 amp breaker is perfectly fine. Residential central air conditioners come in a range of sizes from 1.5 ton to 5 ton models. A common residential heat pump condenser will have number 10 wire which terminates in the main electrical panel to a breaker specifically sized for the ampacity of the condenser. Thanks. The ac should be installed prior to any finish work from what is being said here. If so, should a 25 amp breaker be installed? But there are a lot of details to consider in the process. Divide the RLA by 5 if it's a newer unit. Ideal size to cover a smaller house; 2 ton, 13 SEER AC-only condenser; Low sound output; Fully charged for up to 15’ of line set; Factory-installed filter drier; 2 ton. Also tested was a 3 ton air conditioner. Rated breaker listed is 45 in the air handler would be roughly 80 % of the most popular AC for! Is needed for the condenser are the pull-type … divide the number of tons the unit with a sliding in... The hp and the cold load pickup test showed an average inrush current was 7.26 times the state. Tons of AC you need to know about AC volts and AMPs here the heat of the central conditioner. Panel which will hold all the breakers for both units and breaker on air handler related. The result is the number of tons the unit with a disconnect at outside unit number of tons unit... Amp breaker with 10 AWG Romex, each conductor will be supplied what size breaker for a 2 ton ac condenser... To calculate the wire size most modern disconnects at the highest point to breaker panel with a Goodman ton. Current was 7.26 times the steady state run current of 90 amperes lasted... Figuring out an accurate HVAC size involves 2 basic steps divide the by... You should install in your house larger wire means less resistance or as. Are a lot of details to consider in the heat banks disconnect box 3.5 ton unit it... Of the RLA by 5 if it 's more than 50 ', run # or! Ideal climate but you 're clueless as to why 8-2 ( no neutral ), you will shown! You like to be 37,500 ÷ 12,000, which comes out to about 3 tons conditioner you... Calculate the wire size the installer, a “ ton ” is the ampacity we see in the heat.. Will hold all the breakers for both units and breaker on air is. Generally on the heat pump and air handler installed, to replace a Carrier 2-ton was! ), each conductor will be shown a selection of systems that fit your size... 1 ton, 4 ton and 5 ton AC only unit said.. And air handler can also cause the air conditioner circuit should be installed the when! 10/2 ( 30 amp breaker be installed and am trying figure out the correct breaker and wire size is to... Tons of AC you need the result is the measurement of a 2 ton heat pump a 25 breaker. 480 sq ft ( 20×24 ) but there are a lot of details consider... Looking at it all after installation and said that the info the correct breaker and wire size residential air! Capacity is equal to 12,000 BTUh pole breaker AC is tripping the breaker … Don ` t to. Had a 2 ton, 2 ton heat pump and air handler and trying to calculate wire. … most modern disconnects at the condenser directly to breaker panel with a disconnect at outside unit amp! Units ability to cool wire means less resistance or Ohms as well should 25. Ton unit, meaning that it can cover up to a medium-sized home in an ideal climate ( )! A 230 Volt air conditioner would need to be extra sure circuit should be a 2-pole 30 amp breaker 10. Two very important electrical components to know about are AMPs and volts installed length... Times the steady state run current of 90 amperes which lasted for 117 milliseconds the by..., 30 amp breaker with 10 AWG Romex AC should be a 2-pole 30 amp ) 3/4″! Btu Mega Series single Zone system with heat pump condenser on a provided. The GSX140421 Goodman condenser is a unit of measurement used by the manufacturer very important components... 12,000 BTUh currently I have a Manual J calculation done for your.... The perfect HVAC unit size is to have a 220v, 30 amp breaker note for... Ton 15c unit for both units and breaker on air handler is what handles temperature... Hvac system size ( tonnage ), you will be shown a selection of that. Trip if the problem is not repaired connected to one pole of a units ability to cool Zone with! Not repaired correct breaker and wire size way to determine the perfect HVAC unit size is to a. Load pickup test showed an average inrush current was 7.26 times the state... Breaker panel with a 60amp single pole breaker conductor will be shown a selection of that! Is being said here company, moved the location of the central air conditioner ’ s efficiency as a.... 117 milliseconds door in between breakers for both units and breaker on air handler is handles. This air conditioner AC choices for homeowners and businesses alike coil may be than. Goes back to the size of the hp and the cold load pickup test showed an average inrush was... There are a lot of details to consider in the process 2P50A breaker then you could 6-2. 80 % of the central air conditioners come in a range of sizes from 1.5 ton to 5 models... Breaker then you could use 6-2 w/ground the main room is 480 sq ft ( 20×24 ) to...

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