Compressor — R404A compressor — 74.0 kW cooling, 32.55 kW input, COP 2.27 at the AHRI 7.2/54.4 °C rating point.
A Copeland listing, from the manufacturer's published data.
| Model | Copeland 4DJNF76KE-AWX (R404A Discus recip, 60 Hz, LD) |
| Refrigerant | R404A |
| Performance data | AHRI 540 / EN 12900 10-coefficient map |
| Reference superheat / subcool | 45.8 / 0.0 K |
| Cooling capacity @ 7.2/54.4 °C | 74.03 kW |
| Input power @ 7.2/54.4 °C | 32.55 kW |
| COP @ 7.2/54.4 °C | 2.27 |
AHRI 540 / EN 12900 ten-coefficient polynomials in evaporating and condensing temperature, rated at 45.8 K superheat and 0.0 K subcooling; the solver corrects them to the operating superheat and subcooling. Envelope: the manufacturer's 6-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 |
|---|---|---|---|
| -40 / 10 | 23.31 | 9.31 | 2.50 |
| -40 / 30 | 17.33 | 11.00 | 1.58 |
| -40 / 50 | 10.82 | 11.07 | 0.98 |
| -30 / 10 | 38.26 | 11.40 | 3.36 |
| -30 / 30 | 29.58 | 14.44 | 2.05 |
| -30 / 50 | 19.99 | 16.19 | 1.23 |
| -20 / 10 | 59.19 | 12.79 | 4.63 |
| -20 / 30 | 46.48 | 17.42 | 2.67 |
| -20 / 50 | 32.48 | 21.09 | 1.54 |
| -10 / 10 | 87.31 | 13.23 | 6.60 |
| -10 / 30 | 69.23 | 19.69 | 3.52 |
| -10 / 50 | 49.48 | 25.51 | 1.94 |
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 4DJNF76KE-TSK (R407A Discus recip, 60 Hz, LD) | R407A |
| compressors | Copeland 4DJNF76KE-TSK (R407F Discus recip, 60 Hz, LD) | R407F |
| compressors | Copeland 4DJNF76KE-TSK (R448A Discus recip, 60 Hz, LD) | R448A |
| compressors | Copeland 4DJNF76KE-TSK (R449A Discus recip, 60 Hz, LD) | R449A |
| 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.