Refrigerant Charge Calculator
Last updated: 2026-08-24
Refrigerant Charge Calculator — Calculate refrigerant charge.
Inputs
Result
Enter values and press Calculate
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How to use it
- Calculate carga base: 3.5 kW × 0.04 kg/kW = 0.140 kg
- Calculate tramo with carga extra: 10 m - 5 m = 5 m
- Calculate carga additional R32: 5 m × 0.02 kg/m = 0.100 kg
- Add cargas: 0.140 + 0.100 = 0.240 kg total
- Verify subenfriamiento (8-12 K) and recalentamiento (5-8 K) tras the carga
Common mistakes
- ⚠️ Load without hacer vacío previo — the humedad forms ácidos that dañan the compresor
- ⚠️ Exceso of carga — reduces efficiency and can dañar the compresor per golpe of net amount
- ⚠️ Not verifying subenfriamiento and recalentamiento — are the indicador is current is of carga correct
Worked example
Calculate for 10m pipe, 3/8 inch.
Carga base: {carga_base_kg} kg. Carga extra per línea: {carga_extra_kg} kg. Carga total: {carga_total_kg} kg.
Input guide
| Field | Typical range |
|---|---|
| potencia_eq_kw | Unit cooling capacity. Residential: 2-5 kW, Light commercial: 5-15 kW |
| longitud_linea_m | Pipe length between indoor and outdoor unit. Pre-charged: 3-5 m, Standard: 5-15 m, Long: 15-50 m |