EXINDA FLEX 45 kW R290 Modular Air-to-Water Heat Pump
Capacity that fits the building.
Plan year-round hydronic comfort for smaller commercial buildings with EXINDA FLEX 45 kW R290 heat pump. Supply heating in winter and chilled water in summer, with a modular configuration that can grow with the project. A natural-refrigerant option for offices, hospitality buildings and commercial renovations.
Core Specifications
FBMBHT4B2E3| Nominal capacity and rated condition | Heating: 45 kW at 7/6°C outdoor DB/WB and 35°C leaving water. Cooling: 34 kW at 35/24°C outdoor DB/WB and 7°C leaving water. |
| Published capacity range | 12.8–47.3 kW heating; 10.8–36.2 kW cooling |
| Published electrical input range | 3.316–10.534 kW heating; 3.942–11.138 kW cooling |
| Published COP / EER range | COP 3.86–4.49; EER 2.74–3.25 |
| Refrigerant | R290; 3.5 kg charge; GWP stated as 3 |
| Power supply and protection | 380–400 V / 50 Hz / 3 Ph; R, S, T, N and Ground; MCA 40 A; MOP 50 A |
| Published operating ranges | Ambient −25 to 43°C; heating leaving water 35–60°C; cooling leaving water 7–27°C |
| Water circuit | 7.7 m³/h published flow; G 2 in. female-thread inlet and outlet |
| Sound pressure | 65 / 61 / 58 dB(A), Daytime Max / Rated / Low Noise; stated as converted at 1 m |
| Dimensions and weight | 1135 × 1035 × 2118 mm (L × W × H); net 400 kg. Shipping: 1195 × 1095 × 2197 mm; 450 kg. |
| Compressor | DC inverter |
| Published control functions | Standby anti-freeze, demand-based defrost and cascade connection for up to eight units |
Heating Performance
Published full-condition heating data at 55°C leaving-water temperature. Outdoor temperatures below are dry-bulb values.
| Outdoor air DB | Heating capacity | Input power | COP |
|---|---|---|---|
| 8°C | 43.086 kW | 14.529 kW | 2.97 |
| 2°C | 39.897 kW | 14.460 kW | 2.76 |
| −12°C | 34.870 kW | 15.640 kW | 2.23 |
| −25°C | 25.761 kW | 15.985 kW | 1.61 |
Technical Documents
Modular Heat Pump Chiller Selection Questions
Where does a two-pipe system fit best?
A two-pipe system suits buildings whose connected zones can share a heating or cooling mode. It supplies hot water in heating mode and chilled water in cooling mode.
Can it be used in a boiler upgrade?
Yes. It can provide electric hydronic heating and chilled-water cooling with suitable terminals. An existing boiler can remain as supplementary or backup heat in the system design.
How do I choose the capacity for my building?
Use the building’s heating and cooling loads and required water temperatures to select the unit capacity and number of modules.
What should I send to start a project discussion?
Share the location, building use and the capacity you are considering. EXINDA can help compare configurations and provide the technical package for the next design step.
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