Compressor — R134a compressor — 14.4 kW cooling, 4.40 kW input, COP 3.27 at the AHRI 7.2/54.4 °C rating point.
A Invotech listing, from the manufacturer's published data.
| Model | Invotech YW155J1-100 (R134a heat-pump water heater scroll, 50 Hz, 380 V 3P) |
| 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 | 14.37 kW |
| Input power @ 7.2/54.4 °C | 4.40 kW |
| COP @ 7.2/54.4 °C | 3.27 |
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 | 8.90 | 2.59 | 3.43 |
| -10 / 50 | 7.46 | 3.41 | 2.19 |
| 0 / 30 | 14.41 | 2.80 | 5.14 |
| 0 / 50 | 11.26 | 3.85 | 2.92 |
| 0 / 80 | 7.11 | 6.47 | 1.10 |
| 10 / 30 | 22.96 | 2.81 | 8.17 |
| 10 / 50 | 17.14 | 4.24 | 4.04 |
| 10 / 80 | 10.92 | 6.95 | 1.57 |
| 20 / 50 | 25.58 | 4.53 | 5.65 |
| 20 / 80 | 15.86 | 7.54 | 2.10 |
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 YW155J1-100 (R134a heat-pump water heater scroll, 60 Hz, 460 V 3P) | R134a |
| 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.