2 Ton Ac Wire Size

Most residental units are single phase.

2 ton ac wire size.

The minimum supply circuit ampacity is listed as 15 meanin. Here s a picture of an air conditioner s data tag that i took just today. The whole content is written for single phase 230v ac system. If it s more than 50 run 8 2 or 8 3.

You can see that right well trust me. Fixing or changing the ductwork to accommodate the ac system can add as much as 3 000 4 000 to the total price. For r 404a low temperature 1 psi. 12 is for a 20 amp or less circuit.

Depending on the size of the equipment and what the length of the run is will determine the wire size. Table 310 16 shows that three wires of 6 gauge placed in a conduit will safely conduct 65 amperes of power. There are already many good answers but i will still mention some important points. This is the maximum allowable pressure drop for the entire piping run regardless if it is 50 or 250.

I am installing a 2 5 ton lennox condenser and air handler and trying to calculate the wire size. A disconnect is required per code. All loads are categorized into two types. For r 404a and r 22 medium temperature 2 psi is used.

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 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. 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. Runs through attics where it goes over 85f can require deratting.

Central ac unit cost. At least here in florida. Don t forget that devices with motors designed for continuous running e g. Air conditioner or heatpumps need to have wiring sized for 125 of ampacity requirements after derating for bundling or ambient temperature.

A 30 amp circuit requires a minimum of 10 wire. The voltage range for this wire falls between 0 volts and 2 000 volts. This is a 2 ton air conditioner as you can see from the model number. 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.

Before we get into sizing a residential central air unit lets take a quick look at pricing. Look at the amperage rating on the unit.