Compressor — R407C compressor — 18.7 kW cooling, 6.53 kW input, COP 2.87 at the AHRI 7.2/54.4 °C rating point.
A Copeland listing, from the manufacturer's published data.
| Model | Copeland ZRD72KCE-TFD (R407C scroll, 60 Hz, AC) |
| Refrigerant | R407C |
| Performance data | AHRI 540 / EN 12900 10-coefficient map |
| Reference superheat / subcool | 11.1 / 8.3 K |
| Cooling capacity @ 7.2/54.4 °C | 18.72 kW |
| Input power @ 7.2/54.4 °C | 6.53 kW |
| COP @ 7.2/54.4 °C | 2.87 |
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: the manufacturer's 5-sided polygon. 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 / 30 | 8.71 | 3.14 | 2.77 |
| -20 / 40 | 7.81 | 3.94 | 1.98 |
| -10 / 30 | 13.73 | 3.48 | 3.94 |
| -10 / 40 | 12.45 | 4.29 | 2.90 |
| 0 / 30 | 20.65 | 3.85 | 5.36 |
| 0 / 40 | 18.57 | 4.66 | 3.99 |
| 0 / 60 | 14.66 | 7.01 | 2.09 |
| 10 / 30 | 30.67 | 4.36 | 7.04 |
| 10 / 40 | 27.35 | 5.13 | 5.33 |
| 10 / 60 | 21.48 | 7.45 | 2.88 |
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 ZRD72KCE-TFD (R407C scroll, 50 Hz, AC) | R407C |
| 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.