Top Ten Air Conditioning Installation Violations in Texas

  1. Failed to obtain a permit
  2. Did not perform a Manual J load calculation
  3. Did not perform a Manual D duct design
  4. Failed to install per the manufacturer’s installation instructions
  5. Failed to properly install the duct system
  6. Failed to properly seal all joints and seams
  7. Condensate drain line not properly trapped
  8. Vent pipe improperly installed, touching combustibles
  9. Flexible gas line entering the gas furnace
  10. Equipment not accessible, no service platform or solid continuous 24″ walkway