Compressor — R449A compressor — 52.4 kW cooling, 17.42 kW input, COP 3.01 at the AHRI 7.2/54.4 °C rating point.
A Copeland listing, from the manufacturer's published data.
| Model | Copeland 3DSDS12ML-TFD (R449A Discus recip, 60 Hz, MD) |
| Refrigerant | R449A |
| Performance data | AHRI 540 / EN 12900 10-coefficient map |
| Reference superheat / subcool | 30.5 / 0.0 K |
| Cooling capacity @ 7.2/54.4 °C | 52.43 kW |
| Input power @ 7.2/54.4 °C | 17.42 kW |
| COP @ 7.2/54.4 °C | 3.01 |
AHRI 540 / EN 12900 ten-coefficient polynomials in evaporating and condensing temperature, rated at 30.5 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 |
|---|---|---|---|
| -20 / 10 | 27.83 | 6.58 | 4.23 |
| -20 / 30 | 24.21 | 8.93 | 2.71 |
| -10 / 10 | 44.45 | 6.77 | 6.56 |
| -10 / 30 | 38.03 | 10.29 | 3.69 |
| -10 / 50 | 29.12 | 13.19 | 2.21 |
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 3DSDS12ML-TFD (R407A Discus recip, 60 Hz, MD) | R407A |
| compressors | Copeland 3DSDS12ML-TFC (R407C Discus recip, 60 Hz, MD) | R407C |
| compressors | Copeland 3DSDS12ML-TFD (R407F Discus recip, 60 Hz, MD) | R407F |
| compressors | Copeland 3DSDS12ML-TFD (R448A Discus recip, 60 Hz, MD) | R448A |
| 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.