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Picture of AC Unit

Installing an air-conditioning unit is an overly complex task, but since installation does call for the skills of a certified HVAC technician, it’s best to use a professional. While each install has its own unique challenges, the basic steps in an AC unit install are described below.

1) Set Up the Condenser.

The condenser, which is the part of the unit that converts the AC gas into a liquid form by cooling, needs to be in a place that’s level and secure, out of direct sunlight. It should not be positioned under a gutter or anyplace where water runoff can pour down on it.

Ideally, the condensing unit should be placed near an electrical circuit panel in the home, so that wiring is easier. It should not be positioned close to trees or shrubs since adequate airflow is important. One last requirement is that it should be at least 3 feet away from electric or gas meters.

2) Run Wires and Tubing.

A hole needs to be cut that is big enough to run wires to the main electrical panel and pipes to the furnace. This can best be accomplished with a hole saw.

3) Install the Evaporator Coil.

Installing the evaporator coil is one of the more involved steps of the air conditioning installation process. It requires some fairly precise measurements, as well as skills with drilling and metal cutting. The end result of this step will be to mount the evaporator coil on the upper inside part of your furnace.

4) Install Refrigerant Lines.

Your AC unit requires two refrigerant lines to connect the condensing unit to the evaporator coil. In this part of the process, the lines connected to the condensing unit must be run inside the home along with the ceiling, to the evaporator coil. The actual connection must be done by an EPA-certified contractor.

5) Connect High Voltage.

This is another step best left to an experienced contractor, because of the danger of shock or electrocution from high-voltage. Since air-conditioners run on 220 volts of electricity, there must be a connection between the main electrical panel of the home and the condensing unit.

6) Connect Low Voltage.

A low voltage power source must also be connected to the condensing unit. This is used to operate the thermostat and other smaller electrical units. This wiring should run through the same hole in the wall cut in an earlier step.

7) Install Drain Tubing.

The last step is to connect drain tubing to the evaporator coil, allowing condensation from the coil to empty into a floor drain, rather than allowing it to build up inside the evaporator coil itself.

Get Trusted Help From a Professional

At Triple-T, all of our technicians are EPA certified and highly qualified to install and service your air conditioning unit. While the install procedures can be rather involved for traditional AC units, once completed and with regular maintenance, the unit should keep your home cool and comfortable for years to come.

The good news is that new highly efficient technologies seen in ductless units make the AC unit installation process a whole lot simpler. They reduce labor time and minimize structural changes to your home or business while providing superior customized heating and cooling comfort.