2 Ton Ac Wire Size

For r 404a and r 22 medium temperature 2 psi is used.

2 ton ac wire size.

You can see that right well trust me. Depending on the size of the equipment and what the length of the run is will determine the wire size. Most residental units are single phase. Table 310 16 shows that three wires of 6 gauge placed in a conduit will safely conduct 65 amperes of power.

The voltage range for this wire falls between 0 volts and 2 000 volts. This is a general guideline for home wiring. 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. For r 404a low temperature 1 psi.

On average homeowners report spending 3 900 5 000 to install a 2 5 ton central air system in a house that has functional ductwork. The minimum supply circuit ampacity is listed as 15 meanin. Look at the amperage rating on the unit. I am installing a 2 5 ton lennox condenser and air handler and trying to calculate the wire size.

At least here in florida. There are already many good answers but i will still mention some important points. Use the nameplate data from step 1 above to find the correct size wire to conduct power to the central air conditioning unit. Air conditioner or heatpumps need to have wiring sized for 125 of ampacity requirements after derating for bundling or ambient temperature.

The whole content is written for single phase 230v ac system. Here s a picture of an air conditioner s data tag that i took just today. 12 is for a 20 amp or less circuit. This is a 2 ton air conditioner as you can see from the model number.

Before we get into sizing a residential central air unit lets take a quick look at pricing. This is the maximum allowable pressure drop for the entire piping run regardless if it is 50 or 250. The disconnect must be within reach of the condensor if the condensor is single phase then you only need to run 6 2 stranded with ground. All loads are categorized into two types.

These line sizing charts are based on a suction pressure drop equivalent to a 2 f change in saturation pressure and liquid line pressure drop of 5 psi. Don t forget that devices with motors designed for continuous running e g. If it s more than 50 run 8 2 or 8 3. A disconnect is required per code.

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 30 amp circuit requires a minimum of 10 wire.