Compressor — R455A compressor — 7.9 kW cooling, 2.74 kW input, COP 2.87 at the AHRI 7.2/54.4 °C rating point.
A Invotech listing, from the manufacturer's published data.
| Model | Invotech YM49U1G-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 | 7.86 kW |
| Input power @ 7.2/54.4 °C | 2.74 kW |
| COP @ 7.2/54.4 °C | 2.87 |
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 | 3.00 | 1.02 | 2.95 |
| -30 / 30 | 2.32 | 1.35 | 1.72 |
| -20 / 10 | 4.52 | 1.17 | 3.86 |
| -20 / 30 | 3.68 | 1.48 | 2.48 |
| -10 / 10 | 6.70 | 1.43 | 4.70 |
| -10 / 30 | 5.57 | 1.58 | 3.52 |
| 10 / 30 | 11.56 | 1.94 | 5.94 |
| 10 / 60 | 7.91 | 3.06 | 2.58 |
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 YM49U1G-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.