| CFC | Chlorofluorocarbon |
| COP | Coefficient of performance |
| D | Diameter (m) |
| EDR | Exergy destruction rate (kW) |
| GWP | Global warming potential |
| H | Enthalpy (kJ/kg) |
| HCFC | Hydrochlorofluorocarbon |
| m | Mass flow rate (kg/s) |
| ODP | Ozone depletion potential |
| Q | Cooling capacity (kW) |
| RH | Relative humidity (%) |
| s | Entropy (kJ/kg·K) |
| SLH | Suction-line liquid-line heat exchanger |
| T | Temperature (K) |
| TXV | Thermal expansion valve |
| W | Compressor work (kW) |
| Greek Symbol | |
| η | efficiency |
| Subscripts | |
| comp | Compressor |
| cond | Condenser |
| expa | Expansion valve |
| evap | Evaporator |
| in | Inlet |
| out | Outlet |
| 0 | Dead state |
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