The budget for this project can be estimated based on the scope of work, which includes the replacement of a chiller, pumps, and condenser water piping. The cost of these components, along with labor and other expenses, will contribute to the overall budget. Assuming an average cost of $150,000 to $300,000 for the chiller, $20,000 to $50,000 for the pumps, and $30,000 to $70,000 for the condenser water piping, the total material cost would be around $200,000 to $420,000. Adding labor costs, which could range from $100,000 to $250,000, and other expenses, the total budget could be estimated to be between $350,000 and $700,000. Therefore, the budget estimation is between $350,000 and $700,000.