Compressor — R410A compressor — 42.1 kW cooling, 15.86 kW input, COP 2.65 at the AHRI 7.2/54.4 °C rating point.
A Danfoss listing, from the manufacturer's published data.
| Model | Danfoss VZH088CJ (R410A inverter scroll) |
| Refrigerant | R410A |
| Performance data | AHRI 540 / EN 12900 10-coefficient map |
| Reference superheat / subcool | 10.0 / 0.0 K |
| Cooling capacity @ 7.2/54.4 °C | 42.07 kW |
| Input power @ 7.2/54.4 °C | 15.86 kW |
| COP @ 7.2/54.4 °C | 2.65 |
AHRI 540 / EN 12900 ten-coefficient polynomials in evaporating and condensing temperature, rated at 10.0 K superheat and 0.0 K subcooling; the solver corrects them to the operating superheat and subcooling. Envelope: the manufacturer's 9-sided polygon. It publishes 16 part-load steps (AHRI 540 §5.3.3), which the solver interpolates between. 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 | 23.89 | 6.80 | 3.51 |
| -20 / 30 | 19.93 | 9.78 | 2.04 |
| -10 / 10 | 35.77 | 6.67 | 5.37 |
| -10 / 30 | 30.47 | 10.10 | 3.02 |
| -10 / 60 | 19.49 | 17.09 | 1.14 |
| 0 / 30 | 44.67 | 10.16 | 4.40 |
| 0 / 60 | 28.94 | 17.32 | 1.67 |
| 20 / 60 | 58.82 | 17.46 | 3.37 |
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.
| Part-load interpolation between published compressor steps | the envelope between 16 steps | 0.04 % mean, 0.21 % worst between the knots |
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.