Understanding the Core Technology Behind Air Source Heat Pumps

Fundamental Mechanism

The air to water heat pump operates through four cyclical phases:

Evaporation (absorbing ambient heat at -25°C+)

Compression (refrigerant pressurization to 120°C)

Condensation (heat transfer to water)

Expansion (pressure reduction)

Energy Efficiency Metrics

Typical COP range: 3.2–5.8

Annual performance factor (APF) ≥3.6 for China heat pump models

Innovations by Chinese Manufacturers

Leading China heat pump manufacturers have pioneered:

Dual-rotary compressors (45% quieter operation)

Anti-frosting 3.0 technology (zero downtime at -30°C)

IoT-enabled predictive maintenance

Environmental Impact

Modern China hot water heat pump systems reduce CO₂ emissions by 12 tons annually compared to gas boilers.