Compressor — R410A compressor — 51.2 kW cooling, 19.24 kW input, COP 2.66 at the AHRI 7.2/54.4 °C rating point.
A Bitzer listing, from the manufacturer's published data.
| Model | BITZER 4NDC-20 (R410A recip, EN 12900) |
| Refrigerant | R410A |
| Performance data | AHRI 540 / EN 12900 10-coefficient map |
| Reference superheat / subcool | 10.0 / 0.0 K |
| Cooling capacity @ 7.2/54.4 °C | 51.23 kW |
| Input power @ 7.2/54.4 °C | 19.24 kW |
| COP @ 7.2/54.4 °C | 2.66 |
AHRI 540 / EN 12900 ten-coefficient polynomials in evaporating and condensing temperature, rated at 10.0 K superheat and 0.0 K subcooling; the solver corrects them to the operating superheat and subcooling. Envelope: not published — the map is used unbounded.
| te / tc °C | Capacity kW | Power kW | COP |
|---|---|---|---|
| -10 / 30 | 41.03 | 11.47 | 3.58 |
| -10 / 40 | 34.64 | 12.90 | 2.69 |
| -10 / 60 | 21.22 | 14.69 | 1.44 |
| 0 / 30 | 60.53 | 12.44 | 4.86 |
| 0 / 40 | 51.88 | 14.75 | 3.52 |
| 0 / 60 | 33.32 | 18.15 | 1.84 |
| 10 / 30 | 86.05 | 12.49 | 6.89 |
| 10 / 40 | 74.57 | 15.84 | 4.71 |
| 10 / 60 | 49.69 | 21.17 | 2.35 |
Points on a 10 K grid inside the published envelope; the builder solves any point in it, and warns past it.
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Listed from published data; a listing's figures are the manufacturer's, the model that runs them is ours. Solver results never depend on who has claimed what.