HCI-RANGE - heat pumps, chillers and combined systems

The Fenagy HCI-range reaches capacities from 500 kW to 3,000 kW heat per system. The systems can be used for heat pump, chiller and combined water-water operation. The entire range is designed to deliver optimal performance in accordance with customer-specific operation needs. The HCI-range is only available as water-to-water systems, thereby ensuring a small refrigerant charge.

The HCI-range uses the natural refrigerant isobutane and can reach supply temperatures up to 95°C, regardless of the return temperature.

The HCI-range is typically used for high-temperature heat pump applications, heat pumps for the energy sector (PtX, geothermal, biogas, CCSU), industrial processes and the food industry. The systems can also be used as water-sourced heat pumps for district heating or heat networks and for normal water-cooled chiller applications.

APPLICATIONS

High-temperature heat pumps
Heat pumps for the energy sector
(PtX, geothermal, biogas, CCSU)
Industrial processes
Food industry

Factory-built high-temperature isobutane heat pump in an open enclosure. Capacity: 1500-3000 kW.

Easy installation with enclosure

The HCI-range systems are always delivered in a reach-in enclosure, which is suitable for both in- and outdoor installation.

The enclosure is constantly ventilated with an EX-fan, which ensures negative pressure and maintains the right temperature in the cabinet.

The enclosure has insulated walls with sound dampening panels.

Industrial reach-in enclosure for Fenagy HCI isobutane heat pumps seen from back, front, end and top.

Control systems

The complete range uses a standard Siemens PLC controller, and Fenagy has developed its own PLC algorithms for the most essential functions to ensure optimal control and monitoring. Our PLC solutions can communicate with most of the platforms the customer will need to communicate with. The onboard HMI panel offers direct monitoring of the system and its operating conditions. Furthermore, our PLC solutions support several communication protocols and can integrate with the overall SCADA system. 

For all systems, Fenagy aspires to minimise start-up and shutdown times, enabling the system to help balance the electrical grid in a future with an increasing demand for such functions. Last, but not least, the system can deliver high supply temperatures, and Fenagy is continuously pushing the boundaries with new functions and features in the PLC development.

Diagram showing system communication of a Fenagy heat pump or chiller  installation.
Automation engineer adjusting settings on a PLC controller of a Fenagy heat pump system.

Technical specifications
& key features

Technical specifications table of Fenagy HCI isobutane heat pumps.
  • High-capacity screw compressor technology

  • Unique for applications with high temperature on the heat source

  • Available for heat pump and chiller applications

  • Fast start and stop for balancing the electrical grid

  • Industrial design with stainless steel piping

  • PLC control of the entire system

We only use natural refrigerants

Diagram showing temperature ranges of natural refrigerants CO2 (R744, Isobutane (R600a) and Propane (R290)

R744 - CO₂

APPLICATIONS: District heating, heat networks, industrial processes, food industry, green houses, data centres, logistics centres, offices, hospitals and HVAC in general

  • Natural refrigerant with a wide temperature range

  • Non-toxic and non-flammable

  • Excellent choice for air-sourced heat pumps for direct use in the energy collectors and with high delta T on the heat sink side

  • Optimal for medium-temperature water-sourced heat pumps, chillers and combined heating and cooling applications

  • Medium-high temperature level on heat sink (up to 85°C supply temp) with high delta T on the heat sink (dT: 30-40K)

R600a - Isobutane

APPLICATIONS: Heat networks, Biogas, PtX, geothermal, carbon capture, CO₂ heat pump sub-cooler, industrial processes and food industry  

  • High-temperature natural refrigerant

  • Suitable for water-sourced heat pumps and chillers

  • Can be used in a wide temperature range on both the heat source and heat sink sides

  • Robust operation under various operating conditions

  • Use of efficient screw compressors and high COP of the cycle

  • High temperature level on heat source (up to 40°C evap. temp)

  • High temperature level on heat sink (up to 95°C supply temp) and ideal with low delta T on heat sink - serial coupling on water side at higher delta T

R290 - Propane

APPLICATIONS: Heat networks, industrial processes, food industry, data centres, offices, hospitals and HVAC in general

  • Low-temperature natural refrigerant

  • Suitable for lower temperature water-sourced heat pumps and chillers

  • Low temperature level on heat source (down to -30 °C evap. temp)

  • Medium temperature level on heat sink (up to 75 °C supply temp)

  • Ideal with low delta T on sink and heat source

  • High refrigeration capacity ensures compact solutions with small footprint

  • Can be combined with isobutane in serial hydraulic couplings

Grren icon, which says Natural Refrigerants only.

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