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

Units: SI · US customary

Published specification

Model	Copeland ZR48KEE-TFD (R407C scroll, 50 Hz, AC)
Refrigerant	R407C
Performance data	AHRI 540 / EN 12900 10-coefficient map
Reference superheat / subcool	11.1 / 8.3 K
Cooling capacity @ 7.2/54.4 °C	11.40 kW
Input power @ 7.2/54.4 °C	3.53 kW
COP @ 7.2/54.4 °C	3.23

The map across its envelope

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 5-sided polygon. The mass-flow coefficient set is published too, and the solver checks it against the capacity set.

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.

Same family

All 227 Copeland ZR models

How the model reads against this maker's data

Compressor maps converted from the vendor's own rating database	5 452 maps (4 776 of the worldwide publication, 676 of the Asia and China publications listed for their region)	every basis median within 3.1 % of the nomenclature; the vendor's polynomial substituted exactly, never refitted; each map's superheat and subcooling reference read off its own rating row (the ZW heat pumps at 5 K, the ZH/YH at 10 K, the Discus at 25 K, the small hermetics at a 40 °F return gas)
The compressor map's superheat/subcooling correction — AHRI-rated maps read at EN 12900 conditions	99 R410A (13 models) + 22 R407C + 35 R134a	the corrected map reads the guide's capacity at −0.1 % mean / 1.0 % RMS on R410A, flat across evaporating temperature, every model within ±1.6 %; R407C nominal +1.0 % / 1.8 % (with the subcooling measured from the bubble point, as AHRI 540 Appendix C reads it — +0.3 % when it was measured from the dew point, a difference inside the band either way); R134a +1.5 % / 1.8 %. The uncorrected polynomial reads +9 to +11 %. The R404A refrigeration scrolls, rated at a return gas rather than a superheat, read the guide's 20 °C return-gas tables at +0.7 % / 1.5 % from −15 to −5 °C (88 points) — there the correction is a one-per-cent matter either way. Not held: the heat-pump scrolls, for which the guide prints heating capacity — and one R407C row (ZRD72KCE) disagrees with its map by a quarter and is recorded as a catalogue fault
Drake Chillers PAC360D (30 HP, R407C and R404A), modelled — one air-cooled chiller on the catalog's maps of the compressor its sheet names, on both refrigerants it is sold on	44 + the pinned cell	the pinned 45 °F row within −1.9 to +1.7 % on tons and −2.8 to 0 % on compressor power; every water row's ambient trend on both fluids, each cell against its row's 95 °F cell, at 1.2 % RMS on tons (worst 3.3) and 1.9 % on power (worst 4.7); and at 55 °F, the one leaving temperature both tables print, R404A's capacity over R407C's within −1.6 to −2.9 % of the sheet's ratio. Recorded, not held to the sheet: the sheet holds its evaporator at one approach whatever the duty ("selected upon requirements"), so one fixed conductance reads +6 to +11 % at 35 °F and −14 to −15 % at 65 °F; R404A's power over R407C's reads 4.9–8.7 % above the sheet's at 55 °F — the condenser model holds the refrigerant at its dew point, which credits R407C with half its 4.7 K glide, while the sheet's two tables are one condenser on the mean condensing temperature; the 0–25 °F R404A rows want glycol
KeepRite KEZ Generation D scroll condensing units, modelled — four frames on the catalog's maps of the Copeland scrolls the manual names, against its capacity tables on four refrigerants	806 cells on 15 tables (KEZA009H8, KEZA050H8, KEZA150H8, KEZA150L8), four of them pinned	on the one condenser each, R404A within 0.5–1.1 % RMS (worst +3.4 %) and R407A, R407C and R448A within 1.3–3.7 % RMS (worst −6.9 and +6.7 %, both R448A), every table's mean within a point of the day's — a band no table read one ambient column or one suction row over meets; the 50 cells the manual shades for a 20 °F superheat limit read like the rest. What it tests is the four maps at their own rating basis more than the condenser: the tables are three significant figures with no power, and on three of the four frames the pinned airflow is not air the printed fans could move — through the stated coil it takes 1.9–4.1 times the air power they could give at the best static efficiency of a catalog axial fan of their size, so it stands for the conductance the tables ask for. The suction temperature reads as a dew point — taken as a mid-point the R448A tables read 10–11 % high. Across the manual's 18 cooler frames with a map the same reading runs 1.5–5.2 % RMS, KEZA061H8's R407C table apart (8–46 % under its map), and 10 of them ask a condenser their fans could not drive; the freezer tables mostly print more than their maps give near the ambient — three cannot be reached at any airflow, none is air its fans could move — and are recorded, not modelled

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.