A tool used to determine the appropriate diameter of pipes carrying coolant within a refrigeration or air conditioning system. This instrument considers factors such as refrigerant type, system capacity, desired pressure drop, and length of the lines to calculate the ideal pipe size for efficient and effective coolant transport. For instance, inputting the details of a 5-ton R-410A system with a 50-foot line length and a specified pressure drop would yield the recommended pipe diameters for both the liquid and suction lines.
Correct dimensions are crucial for optimal system performance. Undersized pipes can cause excessive pressure drops, leading to reduced cooling capacity, increased energy consumption, and potential compressor damage. Conversely, oversized pipes can result in lower refrigerant velocity, causing oil return problems and inefficient operation. Historically, these calculations were performed manually using charts and complex formulas. The advent of automated tools has simplified the process, improving accuracy and reducing the time required for system design and installation.