Charge Calculation Formula:
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The Daikin coolant charge calculation determines the amount of refrigerant needed for a system based on the base charge plus additional charge per meter of piping. Proper charge is critical for system efficiency and longevity.
The calculator uses the following equation:
Where:
Explanation: The calculation accounts for both the fixed base charge and the variable charge based on piping length.
Details: Correct refrigerant charge ensures optimal system performance, energy efficiency, and prevents compressor damage from over/under charging.
Tips: Enter the base charge from system specifications, the additional charge per meter value, and the total pipe length. All values must be non-negative.
Q1: Where do I find the base charge value?
A: The base charge is typically specified in the system's installation manual or technical documentation.
Q2: How do I measure pipe length accurately?
A: Measure all refrigerant piping including both liquid and suction lines. Include vertical rises and horizontal runs.
Q3: What if my system has multiple line sets?
A: Sum the lengths of all refrigerant piping when entering the length value.
Q4: Should I round the calculated charge?
A: For most systems, round to the nearest 0.1 kg for practical charging purposes.
Q5: Does this account for refrigerant type?
A: The calculator provides a general calculation. Always verify with system-specific documentation as different refrigerants may have different charge requirements.