Installation of Two Rooftop Package Units Antioch, California

crane, 11. The work area was secured

• Prepared the work area on the roof, ensuring safe access and proper working conditions.
• A crane was used to remove (lower) the existing package units from the roof safely.
• The new package units were lifted and set in place on the roof using the crane, positioning them correctly on their curbs/bases.
• Units were leveled and aligned to ensure proper operation.
• Ductwork connections were completed and properly sealed to prevent air leaks.
• Condensate drain lines were installed and connected, verifying proper slope for correct water drainage.
• Gas lines were connected in compliance with applicable codes and regulations.
• Electrical wiring and thermostat connections were completed.
• System pressures, voltages, and required adjustments were verified.
• Units were started up and operational tests were performed to confirm proper heating and cooling operation.
• The work area was secured and all debris and excess materials were removed.

and all debris and excess materials were removed.