Compressor — R134a compressor — 5.3 kW cooling, 1.70 kW input, COP 3.10 at the AHRI 7.2/54.4 °C rating point.
A Invotech listing, from the manufacturer's published data.
| Model | Invotech YW55J2-100 (R134a heat-pump water heater scroll, 50 Hz, 220 V 1P) |
| Refrigerant | R134a |
| Performance data | AHRI 540 / EN 12900 10-coefficient map |
| Reference superheat / subcool | 11.1 / 8.3 K |
| Cooling capacity @ 7.2/54.4 °C | 5.26 kW |
| Input power @ 7.2/54.4 °C | 1.70 kW |
| COP @ 7.2/54.4 °C | 3.10 |
AHRI 540 / EN 12900 ten-coefficient polynomials in evaporating and condensing temperature, rated at 11.1 K superheat and 8.3 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 | 3.25 | 1.08 | 3.01 |
| -10 / 50 | 2.73 | 1.35 | 2.02 |
| 0 / 30 | 5.27 | 1.16 | 4.56 |
| 0 / 50 | 4.12 | 1.51 | 2.72 |
| 0 / 80 | 2.60 | 2.34 | 1.11 |
| 10 / 30 | 8.40 | 1.16 | 7.26 |
| 10 / 50 | 6.27 | 1.65 | 3.79 |
| 10 / 80 | 4.00 | 2.49 | 1.60 |
| 20 / 50 | 9.36 | 1.75 | 5.34 |
| 20 / 80 | 5.80 | 2.69 | 2.15 |
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.
| 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.