Combined cooling and heating with NH₃
GEA Blu-Red Fusion
GEA has launched an innovation that combines highly efficient cooling and heating in a single product. The new GEA Blu-Red Fusion is a combination of the successful GEA Blu chillers (low stage) and GEA Red heat pumps (high stage). With the inclusion of new compressor models, the available capacity and temperature range is now higher than ever before, to serve new applications and meet ever more demanding customer needs. CE certified.
At best-in-class efficiency, the GEA Blu-Red Fusion is particularly suited for combined cooling and heating applications with high temperature lifts between heat source and heat sink, where single stage compression would otherwise be inefficient or impossible. Whether in the food, dairy or beverage industry, the GEA Blu-Red Fusion is ideal for cooling and heating applications such as hot water washdown for abattoirs or pasteurization processes. The Fusion is also the first choice for heating only applications, such as district and facility heating, using low-temperature heat sources including water from the environment or sewage and wastewater.
GEA Blu-Red Fusion models are based on the existing Blu chiller (BluAstrum or BluGenium) and Red heat pump (RedAstrum or RedGenium) family and offer the same features and benefits. The Blu-Red Fusion can be easily configured as one product in the product selection and configuration tool GEA RT Select which perfectly matches Blu chiller and Red heat pump modules with respect to the project specific requirements.
Efficiency-optimized configuration minimizes total costs and CO₂ emissions
The intermediate stage is equipped with a single, high-efficient ammonia - ammonia ’cascade’ heat exchanger. This connection of the low and high stage, with two separated refrigeration circuits, allows the free combination of different models and minimizes the total refrigerant charge. The absence of an intermediate liquid circuit reduces the equipment effort and capital investment, reduces the differential pressure of both stages, and does not waste power on glycol or water pumps. The efficiency benefit easily reaches double digit numbers. This means a dramatic reduction of energy costs and CO2 emissions.
Full flexibility with three different operating modes
The GEA Blu-Red Fusion offers the highest flexibility for individual operating requirements and seasonal demands. As well as simultaneous cooling and heating in full- or part-load (‘mode 1’), it is possible to switch off the heat pump stage and operate the chiller stage only, when there is no heating demand (‘mode 2’). Finally, the heating capacity can be regulated (reduced) irrespective of the cooling capacity demand (‘mode 3’). It’s also possible to save costs by configuring the Fusion for constantly lower heating demands to prevent unnecessary oversizing of the heat pump module.
Highlights & Technical Features
- Broad range of models for combined cooling and heating applications
- Full flexibility with different operating modes
- Highest efficiency and lowest energy consumption
- Future-proof with the natural refrigerant ammonia (R717) – in accordance with the F-gas regulation, the initiative for the prohibition of F-gases
- Cooling capacity range approx. 205 to 1810 kW / 58 to 514 TR *)
- Heating capacity range approx. 275 to 2400 kW / 938 to 8189 MBH *)
- Heat carrier supply temperatures up to 95°C / 203°F
- Secondary refrigerant outlet temperature range between -15°C / 5°F to 15°C / 59°F
- Fully welded shell & plate heat exchanger
- Various plate materials available, all common liquids supported
- Efficiency-optimized configuration with minimized energy costs and CO₂ emissions
- Stepless capacity control via frequency inverter, additionally screw compressors with capacity slide and reciprocating compressors with cylinder switch-off
- Industry-leading controller technology with GEA Omni
- Based on well-proven equipment, GEA Blu chiller and Red heat pump know-how and experience
*) Sec. refrigerant 12°C / 53.6°F and 6°C / 42.8°F, heat carrier 40°C / 104°F and 70°C / 158°F
Learn more with GEA RT Select – our product selection and configuration tool.
Technical Data
GEA Blu-Red Fusion
| Type 1) |
Heat carrier (°C) |
Heat carrier (°F) |
Cooling capacity (kW) 2) |
Heating capacity (kW) 2 |
COP combined 3 |
| in/out | in/out | line | |||
| BG300-RG35 | 40 / 70 | 104 / 158 | 205 | 275 | 6,40 |
| BG300-RG45 | 40 / 70 | 104 / 158 | 260 | 350 | 6,35 |
| BG450-RG55 | 40 / 70 | 104 / 158 | 335 | 450 | 6,38 |
| BG450-RG65 | 40 / 70 | 104 / 158 | 430 | 575 | 6,44 |
| BG450-RG300 | 40 / 70 | 104 / 158 | 480 | 625 | 6,86 |
| BG600-RG450 | 40 / 70 | 104 / 158 | 670 | 875 | 6,84 |
| BG900-RG450 | 40 / 70 | 104 / 158 | 840 | 1100 | 6,78 |
| BG1200-RG600 | 40 / 70 | 104 / 158 | 1275 | 1670 | 6,80 |
| BG1400-RG750 | 40 / 70 | 104 / 158 | 1470 | 1950 | 6,56 |
| BG1800-RG950 | 40 / 70 | 104 / 158 | 1810 | 2400 | 6,61 |
| BA400-RAEC | 70 / 80 | 158 / 176 | 255 | 450 | 3,33 |
| BA500-RAED | 70 / 80 | 158 / 176 | 350 | 600 | 3,52 |
| BA800-RAHE | 70 / 80 | 158 / 176 | 465 | 800 | 3,44 |
| BA900-RAHG | 70 / 80 | 158 / 176 | 565 | 950 | 3,59 |
| BA1000-RAMH | 70 / 80 | 158 / 176 | 745 | 1.250 | 3,58 |
| BA1500-RAML | 70 / 80 | 158 / 176 | 870 | 1450 | 3,67 |
| BA1800-RARM | 70 / 80 | 158 / 176 | 1090 | 1800 | 3,73 |
| BG450-RG350 | 70 / 95 | 158 / 203 | 340 | 500 | 4,80 |
| BG600-RG350 | 70 / 95 | 158 / 203 | 510 | 750 | 4,86 |
| BG900-RG350 | 70 / 95 | 158 / 203 | 680 | 1000 | 4,86 |
| BG1200-RG550 | 70 / 95 | 158 / 203 | 1125 | 1650 | 4,86 |
| BG1400-RG750 | 70 / 95 | 158 / 203 | 1420 | 2100 | 4,80 |
| BG1800-RG950 | 70 / 95 | 158 / 203 | 1695 | 2500 | 4,82 |
1) Blu Chiller - Red Heat Pump type connotation: BG = BluGenium, BA = BluAstrum, RG = RedGenium, RA = RedAstrum, BG/BA/RG numbers refer to model size,
RA letters refer to compressor housing and swept volume size.
2) BG/RG reciprocating compressor speed max. 1500 rpm, BA screw compressor speed max. 4500 rpm, RA screw compressor speed max. 3600 rpm (RM, RN, RR types limited to 3300 rpm).
3) COP combined = cooling plus heating capacity / power consumption at net.
Downloads
Related Products
Customized GEA heat pumps
Customized heat pumps are designed for optimized efficiency and a wide range of temperatures and capacities. They serve all common industrial applications and district heating. They are applied when special conditions or requirements outstrip the limits of our standard heat pumps.
GEA BluGenium
With an ESEER >9, these models fully exploit the potential of the GEA Blu chiller concept.
CE certified.
GEA RedAstrum
GEA RedAstrum is the standard ammonia screw compressor heat pump that meets the increasing demand for efficient heating. The series is known for its wide capacity and temperature range. It features high-end components and a sophisticated, compact design.
GEA RedGenium
A proven performer becomes even better:
Higher temperatures, an enhanced capacity range, best-in-class efficiencies, increased sustainability at lower total costs – the new GEA RedGenium heat pump has it all.
Service Products
GEA Compressor Conversion Kit (GCCK)
Update your existing screw compressor packages
GEA Purger
The GEA Purger removes non-condensable gases from your refrigeration system, maximizing system efficiency.
GEA Ammonia Dryer
The GEA Ammonia Dryer removes water from the refrigerant cycle and makes the perfect addition to ammonia refrigeration systems along with filters and purgers.
GEA Omni Retrofit Panel
The intuitive touch for screw and piston compressor control. powerful, yet approachable. Cerebral, yet intuitive. Sophisticated, yet simple. Simply – GEA Omni.
PR-OLEO® Premium-Quality Ammonia Refrigeration Oils
PR-OLEO® ammonia oils are the natural choice to optimize industrial cooling and heating applications operating with reciprocating or screw compressors.
GEA Service Kits for screw and reciprocating compressors
Welcome to the world of simplicity with GEA Service Kits for screw and reciprocating compressors. Our mission is clear - to make your experience with original spare parts seamless and your operations smoother than ever. "Take it easy, use a kit" is not just a tagline – it is a promise we deliver on.
Related Videos
How Heat Pumps Work Animation
GEA Insights
A new recipe for indulgence
What if your favorite chocolate didn’t require cocoa beans and your coffee was locally produced? As climate disruption, price hikes and ethical concerns hit two of our most beloved indulgences, scientists are reimagining how we produce them – using microbes, not monocultures. The goal: preserve the flavor and properties of coffee and chocolate while minimizing carbon emissions and improving food resilience.
Fueling the circular economy in shipping
Ports now compete not just on logistics, but on sustainability. At Greece’s Piraeus port, an advanced processing and recovery facility recycles ship waste oil into fuel. Equipped with GEA’s high-performance centrifuges, it sets a new benchmark for state-of-the-art, environmentally responsible port operations.
Closing the loop: key lessons for breweries from OeTTINGER
The 2022 CO2 shortage forced breweries to review their dependency on global supply chains. Many were forced to close, unable to carbonate their products. At its breweries in Germany, OeTTINGER GETRÄNKE is turning its own CO2 into a powerful lever for independence and sustainability – with the help of CO2 recovery technology from GEA.
