Replace Your Old Central Air Conditioning System with a New Model That Is Quieter and More Energy Efficient

Hire a professional HVAC company to replace your failing central air conditioning system with a new system that is quieter and more efficient. The pros are licensed to work with air conditioning refrigerants. They can size/install a new outside condensing unit, inside air handler, duct work, and components such as a high-efficiency air filter, humidifier and dehumidifier.

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bleeding air conditioning refrigerant into a tank for proper disposal
Step 1

Capture the Air Conditioner Refrigerant and Remove the Condensing Unit

Capture the old refrigerant in a pressurized tank for proper disposal. A license is required to handle air conditioner refrigerant to prevent its escape and subsequent harm to the ozone layer. Disconnect the empty lines and remove the condensing unit.

positioning the air conditioner condenser on a level concrete pad
Step 2

Set the New Air Conditioner Condenser on a Concrete Pad

Tamp the ground fort a concrete pad for the air conditioner condensing unit. Use a bar level to ensure the pad is level from front to back and side to side. All home air conditioner equipment should be level.

slipping sheet metal covers over the blocks
Step 3

Remove the Old Air Handler and Position the New Model

Remove old equipment and stack/cover concrete blocks to bear the weight of the air handler. Add sound/vibration absorbing pads on top, followed by a drip pan. Set the new unit on smaller blocks in the bottom of the pan.

setting up the air filtration system in the air conditioner
Step 4

Add a High-efficiency Air Filtration System to the Air Conditioner

Install a high-efficiency air filtration system on the air conditioning system that can remove more than 99% of the contaminants from the air. It effectively removes dust, pollen bacteria, mold spores, pet dander, and smoke.

positioning an elbow in the duct work
Step 5

Install Main Duct Work for the Air Conditioning System

Secure sections of ducts with slender sheet metal drivers. Insulate ducts closest to the air handler with anti-microbial foam rubber. Add an insulator to prevent noise/vibration. Seal air conditioner metal ductwork joints and insulation seams with metallic tape.

installing a round metal branch duct in the air conditioning system
Step 6

Complete Branch Ducts and Tie in Return Air Duct

Secure round metal ducts to the main ducts and to insulated flexible ducts that deliver air to individual vents within the home. Secure them with plastic ties and screws. Connect return air duct to incoming side of air handler.

positioning a humidifier collar in the supply duct
Step 7

Cut Opening in Supply Duct and Install the Humidifier

Cut an opening in the air conditioner supply duct and install a collar and humidifier. It will keep the moisture level inside the house at a more comfortable level during winter months when the air is dried by heating.

positioning the air conditioning system dehumidifier
Step 8

Mount Brackets/Platform and Install the Dehumidifier

Add a dehumidifier to extract moisture from the air supply during summer months when the humidity is high. Connect the dehumidifier to the main system with round metal ducts. Use a crimper to fit duct lengths together. Secure with screws.

soldering the copper tubing joints in the air conditioning system
Step 9

Install Insulated Copper Tubing for the Air Conditioner Refrigerant

Run insulated copper refrigerant tubing between the inside air handler and the outside condensing unit. Seal the joints with high temperature solder to make them completely leak-proof.

filling the copper lines with air conditioner refrigerant
Step 10

Remove Air from Copper Lines and Fill with Refrigerant

Remove air from the sealed copper tubing that runs between the air handler and condenser. A vacuum pump draws the air out. Fill the emptied lines with the correct poundage of refrigerant for the size of your air conditioning system.

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