THF2B42T21
LX SERIES · source records, page 20
460 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.
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Heating performance & equipment details
Ranges include the 460 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 | 460 / 460 |
| EER2 · BTU/Wh | 11.7–12 | 460 / 460 |
| HSPF2 · BTU/Wh | 7.8–8.1 | 460 / 460 |
| Cooling capacity · BTU/h | 39,500–42,000 | 460 / 460 |
| Heating capacity at 47°F / 8.3°C · BTU/h | 37,400–41,000 | 460 / 460 |
| Heating capacity at 17°F / −8.3°C · BTU/h | 24,200–26,600 | 460 / 460 |
| Heating capacity at 5°F / −15°C · BTU/h | 18,400–22,600 | 460 / 460 |
| COP at 5°F / −15°C | 1.98–2.42 | 460 / 460 |
| Equipment / loop type | HP - Split System | 460 / 460 |
| Refrigerant / source-reported GWP | R-410A (GWP:2088) | 460 / 460 |
| Compressor staging | Two-stage | 460 / 460 |
| Connected capability | No | 460 / 460 |
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: CP9C100C16MP13AHRI reference: 210350356 | 15.20 | 8.10 | 19300 | 2.04 | EPA 3987113 → |
XAFC48FXXN1+TXV+ furnace: TM9V080C16MP12AHRI reference: 210350358 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3987116 → |
XAFC48FXXN1+TXV+ furnace: TP9C080C16MP13AHRI reference: 210350362 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3987121 → |
XAFC48FXXN1+TXV+ furnace: CP9C080C16MP13AHRI reference: 210350366 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3987124 → |
XAFC48FBCN1+ furnace: TM9V080C16MP12AHRI reference: 210350368 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3987125 → |
XAFC48FBCN1+ furnace: TP9C080C16MP13AHRI reference: 210350376 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3987130 → |
XAFC48FBCN1+ furnace: CP9C080C16MP13AHRI reference: 210350384 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3987134 → |
XAHD48FBCN1+ furnace: TM9E080C20MP12AHRI reference: 210350394 | 15.20 | 8.10 | 19800 | 2.12 | EPA 3987137 → |
XAFD48FBCN1+ furnace: TM9E080C20MP12AHRI reference: 210350406 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3987139 → |
XAHD48FBCN1+ furnace: TM9Y080C16MP11AHRI reference: 210351712 | 15.20 | 8.10 | 18600 | 2.04 | EPA 3987837 → |
XAHC48FBCN1+ furnace: TM9V080C16MP12AHRI reference: 210362726 | 15.20 | 8.10 | 19300 | 2.06 | EPA 3988487 → |
XAHC48FBCN1+ furnace: TP9C080C16MP13AHRI reference: 210362730 | 15.20 | 8.10 | 19300 | 2.06 | EPA 3988488 → |
XAHC48FBCN1+ furnace: CP9C080C16MP13AHRI reference: 210362734 | 15.20 | 8.10 | 19300 | 2.06 | EPA 3988491 → |
XAFD48FBCN1+ furnace: TM9V080C16MP12AHRI reference: 210362746 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3988496 → |
XAFD48FBCN1+ furnace: TP9C080C16MP13AHRI reference: 210362750 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3988498 → |
XAFD48FBCN1+ furnace: CP9C080C16MP13AHRI reference: 210362754 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3988504 → |
XAHC48FBCN1+ furnace: TM9V060B12MP12AHRI reference: 210362766 | 15.20 | 8.10 | 18900 | 2.00 | EPA 3988508 → |
XAHC48FBCN1+ furnace: TP9C060B12MP13AHRI reference: 210362770 | 15.20 | 8.10 | 18900 | 2.00 | EPA 3988510 → |
XAHC48FBCN1+ furnace: CP9C060B12MP13AHRI reference: 210362774 | 15.20 | 8.10 | 18900 | 2.00 | EPA 3988519 → |
XAFC48FXXN1+TXV+ furnace: TM9E080C20MP12AHRI reference: 210362806 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3988520 → |
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 →