THF2B42T21
LX SERIES · source records, page 7
430 published source records · source checked Sep 21, 2026
Each efficiency range summarizes published EPA records for THF2B42T21. The highest SEER2 and HSPF2 may belong to different combinations. Open a source record below to see its ratings and the scope of its component information.
Model patterns and component strings are preserved exactly. How to read model patterns and combinations →
Heating performance & equipment details
Ranges include the 430 published source records for this model. Values in different rows may describe different configurations. Open an individual record to compare values from the same test configuration.
| Reported field | Value / range | Records supplying it |
|---|---|---|
| SEER2 · BTU/Wh | 15.2–16 | 430 / 430 |
| EER2 · BTU/Wh | 11.7–12 | 430 / 430 |
| HSPF2 · BTU/Wh | 7.8–8.1 | 430 / 430 |
| Cooling capacity · BTU/h | 39,500–42,000 | 430 / 430 |
| Heating capacity at 47°F / 8.3°C · BTU/h | 37,400–41,000 | 430 / 430 |
| Heating capacity at 17°F / −8.3°C · BTU/h | 24,200–26,600 | 430 / 430 |
| Heating capacity at 5°F / −15°C · BTU/h | 18,400–22,600 | 430 / 430 |
| COP at 5°F / −15°C | 1.98–2.42 | 430 / 430 |
| Equipment / loop type | HP - Split System | 430 / 430 |
| Refrigerant / source-reported GWP | R-410A (GWP:2088) | 430 / 430 |
| Compressor staging | Two-stage | 430 / 430 |
| Connected capability | No | 430 / 430 |
47°F = 8.3°C; 17°F = −8.3°C; 5°F = −15°C. COP is dimensionless. These are reported rating points, not a prediction of a particular home’s heat demand or operating limit.
Matched systems
Each row is one source record. The component column distinguishes listed combinations from outdoor-model ratings without an indoor configuration.
| Indoor unit / required furnace | SEER2BTU/Wh | HSPF2BTU/Wh | Heating capacity at 5°F / −15°CBTU/h | COP at 5°F / −15°C | Record & comparison |
|---|---|---|---|---|---|
XAHC48FBCN1+ furnace: TM9E080C16MP12AHRI reference: 210351798 | 16.00 | 8.10 | 20800 | 2.10 | EPA 3985580 → |
XAHD48FBCN1+ furnace: TL9E100C20UH11AHRI reference: 210347967 | 16.00 | 8.10 | 20400 | 2.14 | EPA 3985892 → |
XAHD48FBCN1+JMET18DS2N1AHRI reference: 210345042 | 16.00 | 8.10 | 20600 | 2.20 | EPA 3986083 → |
XAFD48FBCN1+JMET18DS2N1AHRI reference: 210344108 | 16.00 | 8.10 | 19800 | 2.10 | EPA 3986242 → |
XAHC48FBCN1+ furnace: TM8V100C16MP12AHRI reference: 210346908 | 16.00 | 8.10 | 20600 | 2.12 | EPA 3986340 → |
XAHC48FBCN1+ furnace: TM8V080C16MP12AHRI reference: 210346912 | 16.00 | 8.10 | 20600 | 2.12 | EPA 3986343 → |
XAHC48FBCN1+ furnace: TL9E100C20UH11AHRI reference: 210347076 | 16.00 | 8.10 | 20400 | 2.12 | EPA 3986361 → |
XAHC48FBCN1+ furnace: TM8V120C20MP12AHRI reference: 210359095 | 16.00 | 8.10 | 20200 | 2.14 | EPA 3986557 → |
XAHC48FBCN1+ furnace: TM8V100C20MP12AHRI reference: 210359099 | 16.00 | 8.10 | 20200 | 2.14 | EPA 3986560 → |
XAHD48FBCN1+ furnace: TL9E080C16UH11AHRI reference: 210359250 | 16.00 | 8.10 | 19800 | 2.08 | EPA 3986597 → |
XAHC48FBCN1+ furnace: TL8E100C20UH11AHRI reference: 210359266 | 16.00 | 8.10 | 20400 | 2.14 | EPA 3986603 → |
XAHD48FBCN1+ furnace: TL8E080C16UH11AHRI reference: 210359286 | 16.00 | 8.10 | 19300 | 2.08 | EPA 3986616 → |
XAFD48FBCN1+JMVT20DC2N1AHRI reference: 210359294 | 16.00 | 8.10 | 19200 | 2.10 | EPA 3986621 → |
XAHC48FBCN1+ furnace: TM9Y080B12MP11AHRI reference: 210350296 | 16.00 | 7.80 | 19500 | 2.02 | EPA 3987061 → |
XAHD48FBCN1+ furnace: TM9V120D20MP12AHRI reference: 210350330 | 16.00 | 8.10 | 19900 | 2.14 | EPA 3987066 → |
XAHD48FBCN1+ furnace: TP9C120D20MP13AHRI reference: 210350334 | 16.00 | 8.10 | 19900 | 2.14 | EPA 3987069 → |
XAHC48FBCN1+JMVT16CC2N1AHRI reference: 210347987 | 16.00 | 8.10 | 19600 | 2.18 | EPA 3987228 → |
XAFC48FBCN1+JMET16CS2N1AHRI reference: 210347997 | 16.00 | 8.10 | 19900 | 2.06 | EPA 3987232 → |
XAHC48FBCN1+JMET12CS2N1AHRI reference: 210348015 | 16.00 | 8.10 | 19500 | 2.16 | EPA 3987235 → |
XAHD48FBCN1+ furnace: TM9E080C16MP12AHRI reference: 210350420 | 16.00 | 8.10 | 20800 | 2.10 | EPA 3987254 → |
Sources and documentation
The table uses public EPA ENERGY STAR data. AHRI references are reported by EPA and have not been independently checked with AHRI. Source records do not establish availability, installation suitability or rebate eligibility.
No manufacturer manual has been matched to this model.
Collection method, revision history and known limitations →