Compressor — R290 compressor — 29.8 kW cooling, 9.84 kW input, COP 3.03 at the AHRI 7.2/54.4 °C rating point.
A Copeland listing, from the manufacturer's published data.
| Model | Copeland ZB81K5U-TFM (R290 scroll, 50 Hz, MT) |
| Refrigerant | R290 |
| Performance data | AHRI 540 / EN 12900 10-coefficient map |
| Reference superheat / subcool | 11.1 / 0.0 K |
| Cooling capacity @ 7.2/54.4 °C | 29.79 kW |
| Input power @ 7.2/54.4 °C | 9.84 kW |
| COP @ 7.2/54.4 °C | 3.03 |
AHRI 540 / EN 12900 ten-coefficient polynomials in evaporating and condensing temperature, rated at 11.1 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 | 18.07 | 3.96 | 4.56 |
| -20 / 30 | 14.44 | 6.03 | 2.39 |
| -10 / 10 | 25.42 | 3.78 | 6.73 |
| -10 / 30 | 21.86 | 6.14 | 3.56 |
| -10 / 60 | 12.13 | 10.97 | 1.11 |
| 0 / 10 | 35.52 | 3.26 | 10.90 |
| 0 / 30 | 30.97 | 6.10 | 5.08 |
| 0 / 60 | 20.58 | 10.95 | 1.88 |
| 10 / 60 | 30.20 | 10.93 | 2.76 |
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.