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Heat Pumps and Heating
AstralPool Proheat II is a heat pump for large and commercial pools delivering 36–125 kW of heating and operating down to 0 °C outdoor air. It comes in Standard and Chiller versions, the latter with automatic cooling; it reaches a COP of 5.7 at 25 °C air and is fitted with a G2 titanium condenser and scroll compressor.
Proheat II 35 · Standard (heating only)
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Values by model
| Model | |||||
|---|---|---|---|---|---|
| Recommended water flow (m³/h) | 12 – 15 | 15 – 25 | 25 – 35 | 30 – 50 | 50 – 70 |
| Hydraulic connection (mm) | 63 | 63 | 63 | 75 | 75 |
| Power supply | 400 V / 3 / 50 Hz | 400 V / 3 / 50 Hz | 400 V / 3 / 50 Hz | 400 V / 3 / 50 Hz | 400 V / 3 / 50 Hz |
| Refrigerant | R410A | R410A | R410A | R410A | R410A |
| Refrigerant charge (kg) | 4 | 6 | 9 | 2 × 6.5 | 2 × 9 |
| Number of fans | 1 | 1 | 1 | 2 | 2 |
| Sound level dBA (d*) / 5 m | 66.2 / 60.9 | 66.2 / 60.9 | 72.5 / 68.4 | 71.1 / 69.4 | 71.1 / 69.4 |
| Nominal current Standard / Chiller (A) | 13.75 / 13.14 | 17.1 / 17.1 | 25.1 / 24.2 | 33 / 31.5 | 45.4 / 43.7 |
| Max. operating current (A) | 23.4 | 29.8 | 39.8 | 63.6 | 79.6 |
| Recommended supply cable section (mm²) | 4 | 6 | 10 | 16 | 25 |
| Heating output – air 25 °C / water 26 °C (kW) | 36.2 | 44.4 | 63.5 | 91.3 | 125.5 |
| Power input – air 25 °C / water 26 °C (kW) | 6.4 | 8.2 | 11.9 | 17.0 | 24.3 |
| COP – air 25 °C / water 26 °C | 5.7 | 5.4 | 5.3 | 5.4 | 5.2 |
| Heating output – air 15 °C / water 26 °C (kW) | 30.5 | 39.7 | 56.8 | 80.2 | 110.5 |
| Power input – air 15 °C / water 26 °C (kW) | 6.2 | 8.1 | 11.5 | 16.8 | 23.9 |
| COP – air 15 °C / water 26 °C | 4.9 | 4.9 | 4.9 | 4.8 | 4.6 |
| Heating output – air 5 °C / water 26 °C (kW) | 23.2 | 30.0 | 41.3 | 61.0 | 80.1 |
| Power input – air 5 °C / water 26 °C (kW) | 6.0 | 7.9 | 10.7 | 16.2 | 22.7 |
| COP – air 5 °C / water 26 °C | 3.9 | 3.8 | 3.9 | 3.8 | 3.5 |
| Cooling output – air 30 °C / water 26 °C (kW) | 42.3 | 51.0 | 72.0 | 104.0 | 140.0 |
| Power input – air 30 °C / water 26 °C (kW) | 7.0 | 8.4 | 12.0 | 17.3 | 24.4 |
| EER – air 30 °C / water 26 °C | 6.0 | 6.1 | 6.0 | 6.0 | 5.7 |
| Cooling output – air 43 °C / water 32 °C (kW) | 29.1 | 37.0 | 49.5 | 74.0 | 99.0 |
| Power input – air 43 °C / water 32 °C (kW) | 9.4 | 11.9 | 15.6 | 24.5 | 31.2 |
| EER – air 43 °C / water 32 °C | 3.1 | 3.1 | 3.2 | 3.0 | 3.2 |
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