2 Ton Ac Wire Size

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

2 ton ac wire size.

Fixing or changing the ductwork to accommodate the ac system can add as much as 3 000 4 000 to the total price. Before we get into sizing a residential central air unit lets take a quick look at pricing. 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. For r 404a low temperature 1 psi.

Runs through attics where it goes over 85f can require deratting. The whole content is written for single phase 230v ac system. I am installing a 2 5 ton lennox condenser and air handler and trying to calculate the wire size. 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.

All loads are categorized into two types. 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. 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.

There are already many good answers but i will still mention some important points. Air conditioner or heatpumps need to have wiring sized for 125 of ampacity requirements after derating for bundling or ambient temperature. You can see that right well trust me. 12 is for a 20 amp or less circuit.

This is a 2 ton air conditioner as you can see from the model number. At least here in florida. The minimum supply circuit ampacity is listed as 15 meanin. Table 310 16 shows that three wires of 6 gauge placed in a conduit will safely conduct 65 amperes of power.

A disconnect is required per code. Central ac unit cost. A 30 amp circuit requires a minimum of 10 wire. Look at the amperage rating on the unit.

Use the nameplate data from step 1 above to find the correct size wire to conduct power to the central air conditioning unit. This is a general guideline for home wiring. The voltage range for this wire falls between 0 volts and 2 000 volts. 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. 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.