THF2B42T21
LX SERIES · source records, page 20
461 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 461 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 | 461 / 461 |
| EER2 · BTU/Wh | 11.7–12 | 461 / 461 |
| HSPF2 · BTU/Wh | 7.8–8.1 | 461 / 461 |
| Cooling capacity · BTU/h | 39,500–42,000 | 461 / 461 |
| Heating capacity at 47°F / 8.3°C · BTU/h | 37,400–41,000 | 461 / 461 |
| Heating capacity at 17°F / −8.3°C · BTU/h | 24,200–26,600 | 461 / 461 |
| Heating capacity at 5°F / −15°C · BTU/h | 18,400–22,600 | 461 / 461 |
| COP at 5°F / −15°C | 1.98–2.42 | 461 / 461 |
| Equipment / loop type | HP - Split System | 461 / 461 |
| Refrigerant / source-reported GWP | R-410A (GWP:2088) | 461 / 461 |
| Compressor staging | Two-stage | 461 / 461 |
| Connected capability | No | 461 / 461 |
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 |
|---|---|---|---|---|---|
XAFD48FBCN1+ furnace: TP9C100C16MP13AHRI reference: 210350353 | 15.20 | 8.10 | 19300 | 2.04 | EPA 3987111 → |
XAFD48FBCN1+ furnace: LP9C100C16MP13AHRI reference: 210350357 | 15.20 | 8.10 | 19300 | 2.04 | EPA 3987112 → |
XAFC48FXXN1+TXV+ furnace: TM9V080C16MP12AHRI reference: 210350359 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3987115 → |
XAFC48FXXN1+TXV+ furnace: TP9C080C16MP13AHRI reference: 210350363 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3987118 → |
XAFC48FXXN1+TXV+ furnace: LP9C080C16MP13AHRI reference: 210350367 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3987122 → |
XAFC48FBCN1+ furnace: TM9V080C16MP12AHRI reference: 210350369 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3987127 → |
XAFC48FBCN1+ furnace: TP9C080C16MP13AHRI reference: 210350377 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3987131 → |
XAFC48FBCN1+ furnace: LP9C080C16MP13AHRI reference: 210350385 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3987133 → |
XAHD48FBCN1+ furnace: TM9E080C20MP12AHRI reference: 210350395 | 15.20 | 8.10 | 19800 | 2.12 | EPA 3987138 → |
XAFD48FBCN1+ furnace: TM9E080C20MP12AHRI reference: 210350407 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3987140 → |
XAHD48FBCN1+ furnace: TM9Y080C16MP11AHRI reference: 210351713 | 15.20 | 8.10 | 18600 | 2.04 | EPA 3987838 → |
XAHC48FBCN1+ furnace: LP9C060B12MP13AHRI reference: 210362775 | 15.20 | 8.10 | 18900 | 2.00 | EPA 3988421 → |
XAHC48FBCN1+ furnace: TM9V080C16MP12AHRI reference: 210362727 | 15.20 | 8.10 | 19300 | 2.06 | EPA 3988486 → |
XAHC48FBCN1+ furnace: TP9C080C16MP13AHRI reference: 210362731 | 15.20 | 8.10 | 19300 | 2.06 | EPA 3988494 → |
XAHC48FBCN1+ furnace: LP9C080C16MP13AHRI reference: 210362735 | 15.20 | 8.10 | 19300 | 2.06 | EPA 3988495 → |
XAFD48FBCN1+ furnace: TM9V080C16MP12AHRI reference: 210362747 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3988497 → |
XAFD48FBCN1+ furnace: TP9C080C16MP13AHRI reference: 210362751 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3988503 → |
XAFD48FBCN1+ furnace: LP9C080C16MP13AHRI reference: 210362755 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3988506 → |
XAHC48FBCN1+ furnace: TM9V060B12MP12AHRI reference: 210362767 | 15.20 | 8.10 | 18900 | 2.00 | EPA 3988509 → |
XAHC48FBCN1+ furnace: TP9C060B12MP13AHRI reference: 210362771 | 15.20 | 8.10 | 18900 | 2.00 | EPA 3988511 → |
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 →