Compressor — R22 compressor — 7.8 kW cooling, 2.57 kW input, COP 3.02 at the AHRI 7.2/54.4 °C rating point.
A Copeland listing, from the manufacturer's published data.
| Model | Copeland ZB21KF-PFS (R22 scroll, 50 Hz, HT) |
| Refrigerant | R22 |
| Performance data | AHRI 540 / EN 12900 10-coefficient map |
| Reference superheat / subcool | 18.0 / 0.0 K |
| Cooling capacity @ 7.2/54.4 °C | 7.78 kW |
| Input power @ 7.2/54.4 °C | 2.57 kW |
| COP @ 7.2/54.4 °C | 3.02 |
AHRI 540 / EN 12900 ten-coefficient polynomials in evaporating and condensing temperature, rated at 18.0 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 |
|---|---|---|---|
| -10 / 30 | 5.23 | 1.61 | 3.25 |
| -10 / 40 | 4.97 | 1.95 | 2.55 |
| 0 / 30 | 8.72 | 1.61 | 5.40 |
| 0 / 40 | 7.15 | 1.93 | 3.71 |
| 10 / 30 | 12.33 | 1.68 | 7.35 |
| 10 / 40 | 9.81 | 1.96 | 5.01 |
| 10 / 60 | 7.98 | 2.90 | 2.75 |
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.