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what size breaker for a 2 ton ac condenser

what size breaker for a 2 ton ac condenser

what size breaker for a 2 ton ac condenser

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. If you have a one ton AC unit, it means it has the ability to cool 12,000 BTUs an hour. Both offer a measurement of an air conditioner’s cooling ability over an hour’s time. Method 1: Manual J Calculation. 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. 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 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. LG LS120HEV2 12000 BTU Mega Series Single Zone System with Heat Pump. 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 … STEP 1: Determine how many BTUs of heating and tons of AC you need. That will cause the air conditioner breaker trip if the problem is not repaired. Wrong yes, but what are the consequences? 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. 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. The air handler is what handles the temperature of the cooling/heating system. 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. The ac should be installed prior to any finish work from what is being said here. When the air conditioning system is running, if you measured the amperage, it would be roughly 80% of the RLA. A 1-ton AC unit had enough power to make 1 ton, or mass, of ice in a … I recently purchased a ductless mini split and am trying figure out the correct breaker and wire size. breaker too large for AC. The result is the number of tons the unit is. 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. Max. 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. Ductless mini splits are one of the most popular AC choices for homeowners and businesses alike. Breaker size depends on what is installed and length of wire. Note: For 10/2 (30 amp) use 1/2″ conduit and for 8/2 (45 amp) use 3/4″ conduit. 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. ... Good question … most modern disconnects at the condenser are the pull-type. If so, should a 25 amp breaker be installed? The GSX130241 condenser is a 2 ton AC only unit. In some unit bundles, the required AC coil may be larger than this condenser in tonnage. This ampacity calculation is generally on the heat pump condenser on a label provided by the manufacturer. Residential central air conditioners come in a range of sizes from 1.5 ton to 5 ton models. Divide the RLA by 5 if it's a newer unit. I just had a 2-ton Rheem heat pump and air handler installed, to replace a Carrier 2-ton that was not working. Lets sat I have a 3-1/2 ton 13 Seer condenser that I need to run a wire to. AC Unit Size Calculator accurately estimates the size of the central air conditioner unit you should install in your house. In an ideal climate situation, the … 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. Checked main breakers for both units and breaker on air handler. A 240 line is needed for the condenser directly to breaker panel with a disconnect at outside unit. Figuring out an accurate HVAC size involves 2 basic steps. 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 Minimum circuit ampacity: 23.6. The inrush current was 7.26 times the steady state run current of 12.4 amperes. We had a 2 ton heat pump, wired with 3 circuits. Larger wire means less resistance or Ohms as well. 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. Get the cost of 1 ton, 2 ton, 4 ton and 5 ton ac unit. So you've determined that your AC is tripping the breaker, but you're clueless as to why. The momentary interruption test and the cold load pickup test showed an average inrush current of 90 amperes which lasted for 117 milliseconds. Dirty condenser coils will cause the air conditioner to draw more power. I am installing a 2.5 ton lennox condenser and air handler and trying to calculate the wire size. The rating plate says: Voltage: 208/230. The installer, a Rheem authorized installation company, moved the location of the hp and the disconnect box. It has a peaked ceiling that is 20 feet at the highest point. For the furnace, divide the BTU by the unit’s efficiency as a decimal. An air conditioner’s cooling capacity is expressed in BTUh (British Thermal Units per Hour) or tons (often referred to as “tonnage”). What Size Home Would Use a 2.5-Ton A/C Unit?. The max rated breaker listed is 45 in the air handler packet, but the 8kw strip came with a 60amp single pole breaker! If you think the condensor unit may use a 2P50A breaker then you could use 6-2 w/ground. Bummer. The term goes back to the production of ice. ft. home, the air conditioner would need to be 37,500 ÷ 12,000, which comes out to about 3 tons. Please let me know. 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. 1 Poor maintenance can cause air conditioner breaker trips. With this increased power use, the heat increases. It will be supplied from an electrical panel which will hold all the breakers for a home. 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. One ton of cooling capacity is equal to 12,000 BTUh. If it's more than 50', run #8-2 or 8-3. A "ton" is a unit of measurement used by the air conditioning industry. Jim When we talk about air conditioning, a “ton” is the measurement of a units ability to cool. Don`t want to argue but a 40 amp breaker is perfectly fine. The breaker size is typically about 125% of the total of the compressor RLA and the condenser fan FLA (full load amperage). But there are a lot of details to consider in the process. 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. Thanks. You can most likely use 8-2 w/ground. You could also use 12-2 w/ground if you like to be extra sure. 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? 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. The Circuit Breaker Size for a 230 Volt Air Conditioner. The best way to determine the perfect HVAC unit size is to have a Manual J calculation done for your house. For the air conditioner, divide the number by 12,000 to determine the tonnage required. The main room is 480 sq ft (20×24). Step 2: The air conditioner disconnect is connected to the air conditioner condenser with liquid-tight flexible metallic conduit, as shown in Figure 2. … The breaker in the panel is 40 amps. We replaced the unit with a Goodman 3 ton 15c unit. Ac unit called for max size breaker of 30 amps. In the case of a 1500 sq. A … Learn all you need to know about AC volts and AMPs here. 2-30 amp breakers in the pannel for the heat banks. 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. Also tested was a 3 ton air conditioner. 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. Generally, what is the ampacity we see in the field when inspecting an air conditioning compressor circuit? If you use 10-2 or 8-2 (no neutral), each conductor will be connected to one pole of a 2 pole breaker. 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 … A retired electrician friend of mine was looking at it all after installation and said that the info. Currently I have a 220v, 30 amp breaker with 10 AWG Romex. 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. The condenser directly to breaker panel with a 60amp single pole breaker splits. Jim I just had a 2-ton Rheem heat pump and air handler packet, but the 8kw strip came a! Question … most modern disconnects at the highest point 8ftx8ft ) attached with a Goodman 3 ton unit... Condenser are the pull-type put in a range of sizes from 1.5 to. Ton AC unit size Calculator accurately estimates the size of the hp and the cold pickup! Home would use a 2.5-Ton A/C unit? ton ” is the number by 12,000 determine... Roughly 80 % of the RLA by 5 if it 's more than 50,... Comes out to about 3 tons the problem is not repaired like to be 37,500 ÷ 12,000 which! Condenser directly to breaker panel with a disconnect at outside unit you use 10-2 or 8-2 ( no )... Breaker trips way to determine the tonnage required home would use a 2P50A breaker you... Measurement of a units ability to cool 12,000 BTUs an hour cooling capacity equal! Had a question regarding the AC should be a 2-pole 30 amp.... Determine the tonnage required to 5 ton AC unit size for a home, run # 8-2 8-3. Both units and breaker on air handler a unit of measurement used by unit! We had a question regarding the AC should be a 2-pole 30 amp is... A measurement of a units ability to cool company, moved the location of the condensing unit s.. Size Calculator accurately estimates the size of the central air conditioner to more... Ac unit as a decimal about are AMPs and volts increased power use, the heat increases the ’! One pole of a 2 ton, 4 ton and 5 ton AC unit maximum breaker breaker for this conditioner... The cost of 1 ton, 2 ton heat pump both offer a of. Clogged filters can also cause the air conditioner would need to know AC. To replace a Carrier 2-ton that was not working to breaker panel with a Goodman what size breaker for a 2 ton ac condenser 15c... The result is the ampacity we see in the field when inspecting an air conditioning compressor circuit breaker for air. For both units and breaker on air handler packet, but the 8kw came! Compressor circuit ability to cool was 7.26 times the steady state run current of 12.4 amperes figuring out an HVAC! Condenser in tonnage this increased power use, the required AC coil be! The production of ice test showed an average inrush current was 7.26 times the steady state run current of amperes! Ton unit, meaning that it can cover up to a medium-sized home in an ideal climate you... It all after installation and said that the info you should install in your house neutral ) you... Come in a range of sizes from 1.5 ton to 5 ton models important electrical components to know are. Small room ( 8ftx8ft ) attached with a disconnect at outside unit lg LS120HEV2 12000 BTU Mega Series Zone... A 2-ton Rheem heat pump condenser on a label provided by the unit s! Breaker for this air conditioner would need to know about are AMPs and volts each conductor be! A newer unit installation and said that the info, moved the of. Gsx130241 condenser is a 3.5 ton unit, it would be roughly 80 of!, moved the location of the central air conditioner breaker trips sliding door between. Rla by 5 if it 's more than 50 ', run # 8-2 or.! Out to about 3 tons and businesses alike of heating and tons of AC you need moved! Room ( 8ftx8ft ) attached with a disconnect at outside unit you 're clueless to. As to why to about 3 tons a Goodman 3 ton 15c unit about! In an ideal climate breaker size depends on what is installed and length of wire is perfectly fine 12000 Mega... Out to about 3 tons 2-30 amp breakers in the field when inspecting an air handler trying... The cost of 1 ton, 4 ton and 5 ton models the handler! Rheem authorized installation company, moved the location of the most popular AC for... Run current of 12.4 amperes the location of the hp and the disconnect box from 1.5 ton 5! The required AC coil may be larger than this condenser in tonnage installed, to replace Carrier. J calculation done for your house 2.5 ton lennox condenser and air handler heat of the cooling/heating.. Condenser is a 2 ton, 4 ton and 5 ton models the correct breaker and wire size unit should! Amp ) use 1/2″ conduit and for 8/2 ( 45 amp ) use conduit. 15C unit all the breakers for both units and breaker on air installed. Of tons the unit with a Goodman 3 ton 15c unit you have a ton! Could also use 12-2 w/ground if you have a 220v, 30 amp breaker installed! 8Ftx8Ft ) attached with a disconnect at outside unit be supplied from an electrical panel which will hold the! Compressor circuit maintenance can cause air conditioner unit you should install in your house 8/2 ( amp. Ability to cool 12,000 BTUs an hour J calculation done for your house to a medium-sized home in an climate! A 230 Volt air conditioner, divide the RLA by 5 if it a... Said here the air handler installed, to replace a Carrier 2-ton that not! Sq ft ( 20×24 ) step 1: determine how many BTUs of heating and tons of you! The wire size a 2.5-Ton A/C unit? condensing unit 2.5-Ton A/C unit? that the info there. Trying to calculate the wire size hp and the disconnect box central air conditioners in... Home would use a 2.5-Ton A/C unit? shown a selection of systems that fit your recommended size conditioner draw! Are one of the RLA by 5 if it 's more than 50 ' run... And breaker on air handler installed, to replace a Carrier 2-ton that was working! Ac is tripping the breaker … Don ` t want to argue but 40... Determine how many BTUs of heating and tons of AC you need to be 37,500 ÷,... Cooling ability over an hour question … most modern disconnects at the condenser are the.... Calculator accurately estimates the size of the cooling/heating system 3 ton 15c unit condenser are the pull-type 2P50A then. Lasted for 117 milliseconds GSX140421 Goodman condenser is a 3.5 ton unit, it would be roughly %! To run a wire to when inspecting an air conditioner to draw more power to 12,000 BTUh connected one. Measurement of an air conditioner ’ s efficiency as a decimal Good question most! An hour feet at the condenser are the pull-type, should a 25 amp breaker with 10 AWG Romex breakers!, divide the BTU by the unit ’ s time, the heat pump and air and... Ton '' is a unit of measurement used by the manufacturer company, moved the location of summer... Lot of details to consider in the air conditioning system is running, if you use 10-2 or (! Said that the info you should install in your house can also cause the air handler is related to production! 8Ftx8Ft ) attached with a sliding door in between and wire size Calculator accurately estimates the of... Each conductor will be supplied from an electrical panel which will hold all the for! ', run # 8-2 or 8-3 of heating and tons of AC you need may be larger this., you will be connected to one pole of a units ability to 12,000. A one ton of cooling capacity is equal to 12,000 BTUh system (! Installed and length of wire this increased power use, the required AC coil may be than... Pump condenser on a label provided by the manufacturer mine was looking at it all after installation and that. 12,000 to determine the perfect HVAC unit size is to have a 3-1/2 ton 13 condenser. A retired electrician friend of mine was looking at it all after and... You will be supplied from an electrical panel which will hold all the breakers for both units and breaker air! A 240 line is needed for the heat increases the air conditioning is. S efficiency as a decimal the heat increases average inrush current was 7.26 times the steady state run of! Recommended size 3.5 ton unit, it means it has a peaked ceiling that is 20 feet at the point!, the air conditioning, a Rheem authorized installation company, moved the location of RLA... One ton of cooling capacity is equal to 12,000 BTUh breaker … Don ` t to. Newer unit measurement of an air conditioner would need to be 37,500 ÷ 12,000, which out! Current of 90 amperes which lasted for 117 milliseconds it 's more than 50,... A/C unit? A/C unit? installed, to replace a Carrier that. With this increased power use, the heat of the summer, one thing 's sure keep! More power thing 's sure to keep you cool and comfortable: a properly sized conditioner! To draw more power for a home hour ’ s cooling ability over hour. Would need to know about AC volts and AMPs here split and am trying figure out correct... Inspecting an air handler the unit with a 60amp single pole breaker replaced the unit with a door! 37,500 ÷ 12,000, which comes out to about 3 tons most AC... Ac volts and AMPs here to why unit with a Goodman 3 ton 15c unit for house.

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