Compressor — R454B compressor — 51.1 kW cooling, 15.52 kW input, COP 3.29 at the AHRI 7.2/54.4 °C rating point.
A Copeland listing, from the manufacturer's published data.
| Model | Copeland YAU171K1E-TFD (R454B scroll, 50 Hz, AC) |
| Refrigerant | R454B |
| Performance data | AHRI 540 / EN 12900 10-coefficient map |
| Reference superheat / subcool | 11.1 / 8.3 K |
| Cooling capacity @ 7.2/54.4 °C | 51.09 kW |
| Input power @ 7.2/54.4 °C | 15.52 kW |
| COP @ 7.2/54.4 °C | 3.29 |
AHRI 540 / EN 12900 ten-coefficient polynomials in evaporating and condensing temperature, rated at 11.1 K superheat and 8.3 K subcooling; the solver corrects them to the operating superheat and subcooling. Envelope: evaporating -23 to 25 °C, condensing 10 to 66 °C (a rectangle). The mass-flow coefficient set is published too, and the solver checks it against the capacity set.
| te / tc °C | Capacity kW | Power kW | COP |
|---|---|---|---|
| -20 / 10 | 25.92 | 6.21 | 4.18 |
| -20 / 30 | 22.53 | 8.77 | 2.57 |
| -20 / 60 | 14.73 | 18.46 | 0.80 |
| -10 / 10 | 40.26 | 5.58 | 7.22 |
| -10 / 30 | 34.91 | 9.04 | 3.86 |
| -10 / 60 | 24.50 | 18.10 | 1.35 |
| 0 / 10 | 58.99 | 4.13 | 14.30 |
| 0 / 30 | 50.85 | 8.85 | 5.75 |
| 0 / 60 | 36.57 | 17.85 | 2.05 |
| 20 / 30 | 98.30 | 6.76 | 14.54 |
| 20 / 60 | 72.55 | 17.31 | 4.19 |
Points on a 10 K grid inside the published envelope; the builder solves any point in it, and warns past it.
Open the builder and pick this listing from the catalog picker — the solver runs it with the catalog's own figures, at your design point or across a year of weather.
| compressors | Copeland YAU171K1E-TFD (R454B scroll, 60 Hz, AC) | R454B |
| Compressor maps converted from the vendor's own rating database | 4 776 maps | every basis median within 3.2 % of the nomenclature; the vendor's polynomial substituted exactly, never refitted |
From the validation page; every row is held by a test.
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.