Scope of Work – AHU to ODU Copper Piping Erection, N₂ Pressure Testing & Commissioning
We confirm our responsibility to carry out the AHU to ODU copper piping erection works, including all necessary activities as detailed below:
Copper Piping Erection
Supply, installation, and routing of copper refrigerant piping between AHU and ODU as per approved drawings and OEM guidelines.
Proper brazing of joints using nitrogen purging to avoid oxidation.
Adequate support, clamping, and alignment of piping.
Nitrogen (N₂) Pressure Holding Test
Conduct nitrogen pressure testing of the complete refrigerant piping system.
Maintain the pressure for the specified duration to ensure no leakage.
Rectify any leakage observed during testing and re-test until the system is leak-free.
Vacuuming & Commissioning Support
Deep vacuuming of the refrigerant piping system using a vacuum pump up to the recommended micron level.
Support during system charging (if applicable) and final commissioning.
Functional checks to ensure proper operation of the AHU–ODU system.
Quality & Safety Compliance
All works will be executed as per HVAC industry standards, OEM recommendations, and site safety norms.
Work completion will be carried out to the satisfaction of the client/site engineer.