Direct Expansion PVT Heat Pump System

Direct Expansion PVT Heat Pump System

DX-PVT: PVT as evaporator. No intermediate losses. Maximum system efficiency.

  • Highest theoretical COP performance
  • Direct refrigerant integration
  • Reduced thermal losses

Maximum Efficiency Solar-Assisted Heat Pump Technology.

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What is DX-PVT System

A Direct Expansion (DX) PVT system integrates the solar collector directly into the refrigerant loop of the heat pump.

👉 No secondary fluid
👉 No intermediate heat exchanger

Result:

  • Higher evaporating temperature
  • Improved system efficiency
direct expansion solar heat pumps for residential applications – pv magazine international

Key Advantages & Engineering Challenges

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Key Advantages

  • ✔️ Maximum thermal efficiency
  • ✔️ Reduced system losses
  • ✔️ Compact system design

Engineering Challenges

  • Refrigerant safety compliance (F-Gas regulations)
  • Installation complexity
  • Long-term reliability

👉 Compliance note:
System design must follow EU F-Gas and pressure equipment directives.

Typical Applications

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High-end residential projects

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We support DX-ready PVT design — with engineering coordination.