Compressor — R452A compressor — 19.8 kW cooling, 8.20 kW input, COP 2.42 at the AHRI 7.2/54.4 °C rating point.
A Invotech listing, from the manufacturer's published data.
| Model | Invotech YF45E7G-Q100 (R452A low-temperature freezing scroll, 60 Hz, 220 V 3P) |
| Refrigerant | R452A |
| Performance data | AHRI 540 / EN 12900 10-coefficient map |
| Reference superheat / subcool | 40.0 / 0.0 K |
| Cooling capacity @ 7.2/54.4 °C | 19.83 kW |
| Input power @ 7.2/54.4 °C | 8.20 kW |
| COP @ 7.2/54.4 °C | 2.42 |
AHRI 540 / EN 12900 ten-coefficient polynomials in evaporating and condensing temperature, rated at 40.0 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 |
|---|---|---|---|
| -40 / 30 | 4.87 | 3.39 | 1.44 |
| -40 / 40 | 4.27 | 4.01 | 1.06 |
| -30 / 30 | 7.60 | 3.81 | 2.00 |
| -30 / 40 | 6.68 | 4.49 | 1.49 |
| -20 / 30 | 11.49 | 4.25 | 2.70 |
| -20 / 40 | 10.11 | 5.00 | 2.02 |
| -20 / 60 | 6.91 | 7.37 | 0.94 |
| 0 / 30 | 23.30 | 5.25 | 4.44 |
| 0 / 40 | 20.51 | 6.11 | 3.35 |
| 0 / 60 | 13.92 | 8.60 | 1.62 |
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 YF45E7G-Q100 (R448A low-temperature freezing scroll, 60 Hz, 220 V 3P) | R448A |
| compressors | Invotech YF45E7G-Q100 (R449A low-temperature freezing scroll, 60 Hz, 220 V 3P) | R449A |
| 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.