Compressor — R455A compressor — 7.1 kW cooling, 2.53 kW input, COP 2.81 at the AHRI 7.2/54.4 °C rating point.
A Invotech listing, from the manufacturer's published data.
| Model | Invotech YM43U1G-100 (R455A medium-temperature refrigeration scroll, 50 Hz, 380 V 3P) |
| Refrigerant | R455A |
| Performance data | AHRI 540 / EN 12900 10-coefficient map |
| Reference superheat / subcool | 30.0 / 0.0 K |
| Cooling capacity @ 7.2/54.4 °C | 7.12 kW |
| Input power @ 7.2/54.4 °C | 2.53 kW |
| COP @ 7.2/54.4 °C | 2.81 |
AHRI 540 / EN 12900 ten-coefficient polynomials in evaporating and condensing temperature, rated at 30.0 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 |
|---|---|---|---|
| -30 / 10 | 2.72 | 0.94 | 2.89 |
| -30 / 30 | 2.10 | 1.25 | 1.69 |
| -20 / 10 | 4.10 | 1.09 | 3.78 |
| -20 / 30 | 3.33 | 1.37 | 2.43 |
| -10 / 10 | 6.08 | 1.32 | 4.60 |
| -10 / 30 | 5.05 | 1.47 | 3.44 |
| 10 / 30 | 10.47 | 1.80 | 5.82 |
| 10 / 60 | 7.17 | 2.83 | 2.53 |
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 | Invotech YM43U1G-100 (R454C medium-temperature refrigeration scroll, 50 Hz, 380 V 3P) | R454C |
| Invotech scroll maps read from the Invowin selection tool's own database | 1 103 maps (R22, R410A, R404A, R407C, R134a, R448A, R449A, R452A, R455A, R454C; 50 and 60 Hz) | nomenclature median +0.5 %, worst 5.1 %; the tool's SI cubics carried exactly, ×1000 and ÷3600; 990 flow sets close within 15 %, 113 whole low-temperature families sit at a flat 0.76–0.85 of Q/Δh and ship without their flow set, each recorded with its ratio |
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.