// multi-utility computation suite · offline · instant · precise
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│ computation suite │
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eng.refrigerant-charge Calculator
Calculates refrigerant charge weight from system volume, condensing and evaporating conditions, and tube lengths. Overcharging refrigerant by 10–15% reduces efficiency by 5–8% and risks compressor liquid slugging — undercharging reduces capacity more severely.
Inputs
System Btu
Maximum throughput or storage. Operating near 100% capacity typically increases failures and wait times.
Ambient Temp F
Thermal state of the substance. Check whether the formula needs Celsius, Fahrenheit, or Kelvin (K = °C + 273.15).
Suction Pressure Psi
Force per unit area (Pa). Atmospheric pressure at sea level: 101,325 Pa. Check whether gauge or absolute pressure is required.
Discharge Pressure Psi
Force per unit area (Pa). Atmospheric pressure at sea level: 101,325 Pa. Check whether gauge or absolute pressure is required.
Results
compression ratio
The computed compression ratio or compressive force. Higher compression ratios store more energy but increase heat and pressure.
target suction superheat
The value at the specified point or condition.
target subcooling
Sample size or count used in the calculation.
compression ratio OK?
The computed compression ratio or compressive force. Higher compression ratios store more energy but increase heat and pressure.
R-410A: check subcooling
A pass/fail verification against the applicable code, standard, or threshold.