Compressor — R455A compressor — 9.7 kW cooling, 3.57 kW input, COP 2.72 at the AHRI 7.2/54.4 °C rating point.
A Tecumseh listing, from the manufacturer's published data.
| Model | Tecumseh FH4538P-XG1A (R455A hermetic, HBP, ARI, 60 Hz) |
| Refrigerant | R455A |
| Performance data | AHRI 540 / EN 12900 10-coefficient map |
| Reference superheat / subcool | 21.9 / 0.0 K |
| Cooling capacity @ 7.2/54.4 °C | 9.72 kW |
| Input power @ 7.2/54.4 °C | 3.57 kW |
| COP @ 7.2/54.4 °C | 2.72 |
AHRI 540 / EN 12900 ten-coefficient polynomials in evaporating and condensing temperature, rated at 21.9 K superheat and 0.0 K subcooling; the solver corrects them to the operating superheat and subcooling. Envelope: evaporating -22 to 18 °C, condensing 35 to 64 °C (a rectangle).
| te / tc °C | Capacity kW | Power kW | COP |
|---|---|---|---|
| -20 / 40 | 3.51 | 1.87 | 1.88 |
| -20 / 50 | 2.77 | 1.91 | 1.45 |
| -20 / 60 | 2.07 | 1.90 | 1.08 |
| -10 / 40 | 6.06 | 2.37 | 2.55 |
| -10 / 50 | 4.96 | 2.55 | 1.94 |
| -10 / 60 | 3.87 | 2.68 | 1.44 |
| 0 / 40 | 9.53 | 2.75 | 3.46 |
| 0 / 50 | 7.92 | 3.09 | 2.57 |
| 0 / 60 | 6.28 | 3.36 | 1.87 |
| 10 / 40 | 14.19 | 2.99 | 4.74 |
| 10 / 50 | 11.89 | 3.49 | 3.40 |
| 10 / 60 | 9.53 | 3.93 | 2.42 |
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 | Tecumseh FH4538P-XG1A (R404A hermetic, HBP, EN12900, 50 Hz) | R404A |
| compressors | Tecumseh FH4538P-XG1A (R404A hermetic, HBP, EN12900, 60 Hz) | R404A |
| compressors | Tecumseh FH4538P-XG1A (R448A hermetic, HBP, EN12900, 50 Hz) | R448A |
| compressors | Tecumseh FH4538P-XG1A (R448A hermetic, HBP, EN12900, 60 Hz) | R448A |
| compressors | Tecumseh FH4538P-XG1A (R452A hermetic, HBP, EN12900, 50 Hz) | R452A |
| compressors | Tecumseh FH4538P-XG1A (R452A hermetic, HBP, EN12900, 60 Hz) | R452A |
| compressors | Tecumseh FH4538P-XC3A (R454C hermetic, HBP, EN12900, 50 Hz) | R454C |
| compressors | Tecumseh FH4538P-XG1A (R454C hermetic, HBP, EN12900, 50 Hz) | R454C |
| compressors | Tecumseh FH4538P-KZ1A (R454C hermetic, HBP, EN12900, 50 Hz) | R454C |
| compressors | Tecumseh FH4538P-XG1A (R454C hermetic, HBP, EN12900, 60 Hz) | R454C |
| compressors | Tecumseh FH4538P-KZ1A (R454C hermetic, HBP, EN12900, 60 Hz) | R454C |
| compressors | Tecumseh FH4538P-KZ1A (R455A hermetic, HBP, EN12900, 50 Hz) | R455A |
| Tecumseh hermetic compressor maps, the maker's own coefficient sets | 1 883 maps from 313 models on fifteen fluids (R404A 324, R452A 250, R448A 244, R449A 240, R134a 178, R455A 115, R290 109, R454C 106, R22 97, R513A 89, R407C 61, R1234yf 53, R600a 10, R410A 4, R407A 3) at 93 application × refrigerant × frequency listings | power reads the selector's point within 0.95 % on every map (units and coefficient order, BTU/h sets scaled and Fahrenheit sets substituted exactly); the 1 019 zeotrope maps read it to 0.00 % at the selector's dew pair and 3–10 % low at its mid-point pair, which is how the polynomials were shown to be dew-point maps; 1 378 maps rate at their own basis and read the selector's capacity within 1 %; on the 505 the selector corrected from a liquid-temperature or return-gas basis to the regime, this solver's AHRI 540 §6 correction reproduces the selector's corrected capacity within +0.2 % on average (the raw polynomial sits +8.7 % over it), single maps ±11 % where a return-gas basis is carried as one reference superheat. The envelope limits, which the selector states on the mid-point, are converted through the selector's own mid ↔ dew pairs (within 0.05 K of every pair, within 0.7 K of its stated 63 °C-mid condensing ceiling). The bubble line the subcooling is measured from reads the selector's liquid temperatures within 0.4 K on R448A, R449A, R452A, R407C and R404A, 0.6 K on R454C and 1.0 K on R455A — the two property sources' own disagreement on the blends' saturation lines |
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.