Catalog · Embraco

Embraco NJ2192GK (R404A hermetic, LBP, EN12900, 60 Hz)

Compressor — R404A compressor — 2.1 kW cooling, 2.42 kW input, COP 0.89 at the AHRI 7.2/54.4 °C rating point.

A Embraco listing, from the manufacturer's published data.

Published specification

ModelEmbraco NJ2192GK (R404A hermetic, LBP, EN12900, 60 Hz)
RefrigerantR404A
Performance dataAHRI 540 / EN 12900 10-coefficient map
Reference superheat / subcool45.0 / 0.0 K
Cooling capacity @ 7.2/54.4 °C2.15 kW
Input power @ 7.2/54.4 °C2.42 kW
COP @ 7.2/54.4 °C0.89

The map across its envelope

AHRI 540 / EN 12900 ten-coefficient polynomials in evaporating and condensing temperature, rated at 45.0 K superheat and 0.0 K subcooling; the solver corrects them to the operating superheat and subcooling. Envelope: the manufacturer's 5-sided polygon. The mass-flow coefficient set is published too, and the solver checks it against the capacity set.

te / tc °CCapacity kWPower kWCOP
-40 / 200.540.790.68
-40 / 300.430.680.63
-30 / 201.340.821.63
-30 / 301.120.841.33
-30 / 500.720.790.91
-20 / 202.360.842.82
-20 / 302.010.992.04
-20 / 501.331.111.20
-10 / 203.400.873.90
-10 / 302.921.172.50
-10 / 501.941.481.32

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.

How the model reads against this maker's data

Embraco hermetic and variable-capacity compressor maps, fitted from the maker's published tables1,283 maps from 815 models (R134a 518, R600a 315, R290 285, R404A 141, R22 11, R1234yf 10, R422D 2, R502 1); 178 variable-capacity models with a table per speedfitted at the order each table's levels determine (three condensing levels: quadratic in tc), the tables are reproduced at a median RMS of 0.08 % (p90 0.20 %); every map reads the standard's own rating point within 0.08 % at the median and 0.4 % at the ninetieth percentile; every carried flow set closes the identity once the rating's own return-gas and liquid temperatures are read off the node (ASHRAE rates with the liquid at 32.2 °C, 22 K under the condenser). 72 tables withheld and listed by reason: blend groups published as one table, variable-capacity models with fewer than three speeds tabulated, three with a COP under 0.5 at the rating point, three duplicates

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.

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