Compressor — R454B compressor — 8.7 kW cooling, 2.75 kW input, COP 3.17 at the AHRI 7.2/54.4 °C rating point.
A Copeland listing, from the manufacturer's published data.
| Model | Copeland YA29K1E-TF7 (R454B scroll, 60 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 | 8.70 kW |
| Input power @ 7.2/54.4 °C | 2.75 kW |
| COP @ 7.2/54.4 °C | 3.17 |
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 10-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 | 4.39 | 0.97 | 4.53 |
| -20 / 30 | 3.94 | 1.64 | 2.41 |
| -10 / 10 | 6.64 | 0.90 | 7.39 |
| -10 / 30 | 6.03 | 1.58 | 3.83 |
| 0 / 30 | 8.75 | 1.52 | 5.76 |
| 0 / 60 | 5.98 | 3.30 | 1.81 |
| 20 / 60 | 12.62 | 2.98 | 4.24 |
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.
| 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.