An AC technician handles several tasks when installing an HVAC system. Here’s a list of the key responsibilities:

  1. Site Assessment:

    • Conduct an on-site inspection to assess the space and determine the best location for the HVAC unit (indoor and outdoor components).
    • Measure the area to ensure proper system sizing.

  2. System Design & Sizing:

    • Perform load calculations to determine the appropriate size of the HVAC system for the space based on factors like room size, insulation, and climate.
    • Choose the right system (e.g., split system, ductless, central air, etc.) based on the customer's needs.

  3. Installing Ductwork (if applicable):

    • Install new ductwork or modify existing ducts to ensure proper airflow.
    • Seal and insulate ducts to prevent energy loss and optimize efficiency.

  4. Mounting the Indoor Unit:

    • Securely install the indoor air handler or evaporator coil in the designated location, such as a basement, attic, or utility room.
    • Connect the air handler to the duct system for efficient air distribution.

  5. Placing the Outdoor Unit:

    • Install the outdoor condenser unit in a suitable area with proper clearance and ventilation.
    • Secure the unit on a level surface, typically a concrete pad or brackets for wall mounting.

  6. Connecting Refrigerant Lines:

    • Run copper refrigerant lines between the indoor and outdoor units.
    • Ensure the refrigerant lines are properly insulated to prevent energy loss.

  7. Electrical Connections:

    • Wire the HVAC system to the electrical panel and install a dedicated circuit.
    • Connect power lines to the indoor and outdoor units and set up the thermostat.

  8. Gas Line Connections (if applicable):

    • For systems that require a gas-powered furnace, connect the gas line to the furnace and ensure proper venting.

  9. System Calibration:

    • Test the system to check refrigerant levels and ensure everything is operating within the manufacturer’s specifications.
    • Calibrate the thermostat and set it up for optimal temperature control.

  10. Leak Testing:

  • Check for refrigerant leaks using a leak detection tool and ensure that all connections are secure and tight.
  1. System Start-Up & Testing:
  • Power on the system and test both heating and cooling functions.
  • Check airflow, temperature settings, and humidity control to make sure everything is running smoothly.
  1. Final Inspection:
  • Inspect the entire installation for compliance with local building codes and manufacturer instructions.
  • Clean the work area, remove any debris, and ensure the system is fully operational.
  1. Customer Demonstration:
  • Walk the customer through the system, explain how to operate the thermostat, and provide maintenance tips.
  • Offer guidance on energy efficiency practices and any warranties associated with the installation.

These tasks ensure a proper and efficient HVAC installation that provides comfort, safety, and longevity to the system.