An Invotech listing, from the manufacturer's published data.

Units: SI · US customary

Published specification

Model	Invotech YSF90A1G-V100 (R22 low-temperature freezing scroll, 50 Hz, 380 V 3P)
Refrigerant	R22
Performance data	AHRI 540 / EN 12900 10-coefficient map
Reference superheat / subcool	32.4 / 0.0 K
Cooling capacity @ 7.2/54.4 °C	32.38 kW
Input power @ 7.2/54.4 °C	11.99 kW
COP @ 7.2/54.4 °C	2.70

The map across its envelope

AHRI 540 / EN 12900 ten-coefficient polynomials in evaporating and condensing temperature, rated at 32.4 K superheat and 0.0 K subcooling; the solver corrects them to the operating superheat and subcooling. Envelope: the manufacturer's 7-sided polygon.

The rating point and three conditions across the published envelope. The whole map — every condition, the envelope and the curves — is in the builder: open this machine in the app. It solves any point inside the envelope, and warns past it.

Open this compressor in the app — the compressor-map tab, with its rating at any condition, its envelope, capacity and power lines and curves plotted, and the refrigerant's pressure–temperature chart a click away; or open the builder and pick it from the catalog picker — the solver runs it with the catalog's own figures, at your design point or across a year of weather.

All 52 Invotech YSF models

How the model reads against this maker's data

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.