How to Install Split AC on Wall

Installing a split air conditioner (split AC) on the wall involves several steps and should be performed by a licensed HVAC technician or a professional installer, as it requires knowledge of electrical and refrigeration systems. Attempting to install a split AC without proper training and tools can be dangerous and may result in damage or malfunction. However, if you’re interested in understanding the basic process, here’s an overview:

How to Install Split AC on Wall

Materials and Tools Needed:

  • Split AC unit (indoor and outdoor)
  • Mounting bracket or stand for the outdoor unit
  • Mounting bracket for the indoor unit
  • Copper tubing for refrigerant lines
  • Electrical wires and conduit
  • Drill and appropriate drill bits
  • Screwdriver and screws
  • Pipe bender and cutter
  • Level
  • Tape measure
  • Vacuum pump
  • Manifold gauge set
  • Refrigerant

Installation Steps:

  1. Select a Location:
    • Choose a suitable location on the wall for mounting the indoor unit. It should be at least 7 feet above the floor and away from direct sunlight, heat sources, and obstacles that could obstruct airflow.
  2. Mount the Indoor Unit:
    • Secure the indoor unit’s mounting bracket to the wall using appropriate anchors and screws.
    • Mount the indoor unit on the bracket securely, ensuring it’s level and well-supported.
  3. Prepare the Outdoor Unit:
    • Choose a location for the outdoor unit that is level, stable, and allows for proper airflow. It should also be away from obstructions and protected from direct sunlight and rain.
    • Install a mounting bracket or stand for the outdoor unit, if necessary.
  4. Run Refrigerant Lines:
    • Drill a hole through the wall to run the copper tubing and electrical wires between the indoor and outdoor units.
    • Connect the copper tubing, refrigerant lines, and electrical wires, making sure they are properly insulated and sealed to prevent leaks.
  5. Connect Electrical Wiring:
    • Connect the electrical wires from the indoor unit to the outdoor unit, following the manufacturer’s wiring diagram.
    • Ensure proper grounding and use conduit to protect the wires.
  6. Vacuum and Charge the System:
    • Use a vacuum pump to remove air and moisture from the refrigerant lines.
    • Charge the AC system with the appropriate refrigerant type and amount using a manifold gauge set.
  7. Test the System:
    • Turn on the AC and test its cooling and heating functions.
    • Check for refrigerant leaks and ensure proper airflow.
    • Verify that the thermostat and remote control are working correctly.
  8. Seal and Insulate:
    • Seal the hole in the wall around the refrigerant lines and electrical wires to prevent drafts and pests.
    • Insulate the refrigerant lines to maintain efficiency.
  9. Complete Installation:
    • Secure all components, tighten connections, and clean up the installation area.
    • Provide the customer with operating instructions and maintenance guidelines.

Remember, this is a simplified overview of the installation process. Split AC installation requires precise measurements, electrical work, and refrigeration knowledge, making it essential to hire a professional for a safe and efficient installation. Improper installation can result in AC inefficiency, refrigerant leaks, or even damage to the equipment.

How to Install Split AC on Wall


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