THF2B42T21
LX SERIES · source records, page 16
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: TM9Y100C20MP11AHRI reference: 210346661 | 15.20 | 8.10 | 20200 | 2.08 | EPA 3984944 → |
XAFD48FBCN1+ furnace: TM9Y100C16MP11AHRI reference: 210346673 | 15.20 | 7.80 | 19600 | 2.02 | EPA 3984947 → |
XAHD48FBCN1+ furnace: TM9V080C16MP12AHRI reference: 210346729 | 15.20 | 8.10 | 19300 | 2.06 | EPA 3984969 → |
XAHD48FBCN1+ furnace: TP9C080C16MP13AHRI reference: 210346733 | 15.20 | 8.10 | 19300 | 2.06 | EPA 3984975 → |
XAFD48FBCN1+ furnace: TP9C120D20MP13AHRI reference: 210343815 | 15.20 | 8.10 | 19600 | 2.06 | EPA 3985289 → |
XAFD48FBCN1+ furnace: TM9V120D20MP12AHRI reference: 210343811 | 15.20 | 8.10 | 19600 | 2.06 | EPA 3985290 → |
XAFD48FBCN1+ furnace: TM9V100C20MP12AHRI reference: 210343831 | 15.20 | 7.80 | 19600 | 2.04 | EPA 3985297 → |
XAFD48FBCN1+ furnace: TP9C100C20MP13AHRI reference: 210343835 | 15.20 | 7.80 | 19600 | 2.04 | EPA 3985299 → |
XAHC48FBCN1+ furnace: TM9E080C20MP12AHRI reference: 210343847 | 15.20 | 8.10 | 19800 | 2.12 | EPA 3985415 → |
XAHD48FBCN1+ furnace: TM8V080C16MP12AHRI reference: 210343903 | 15.20 | 8.10 | 20400 | 2.12 | EPA 3985422 → |
XAFC48FXXN1+TXV+ furnace: TL9E100C20UH11AHRI reference: 210344047 | 15.20 | 7.80 | 19900 | 2.02 | EPA 3985468 → |
XAFC48FBCN1+ furnace: TL9E100C20UH11AHRI reference: 210344051 | 15.20 | 7.80 | 19900 | 2.02 | EPA 3985469 → |
XAFD48FBCN1+ furnace: TL8E100C20UH11AHRI reference: 210344071 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3985481 → |
XAFC48FXXN1+TXV+ furnace: TM9V100C20MP12AHRI reference: 210351721 | 15.20 | 7.80 | 19800 | 2.02 | EPA 3985546 → |
XAFC48FXXN1+TXV+ furnace: TP9C100C20MP13AHRI reference: 210351725 | 15.20 | 7.80 | 19800 | 2.02 | EPA 3985554 → |
XAFC48FBCN1+ furnace: TM9V100C20MP12AHRI reference: 210351731 | 15.20 | 7.80 | 19800 | 2.02 | EPA 3985560 → |
XAFC48FBCN1+ furnace: TP9C100C20MP13AHRI reference: 210351739 | 15.20 | 7.80 | 19800 | 2.02 | EPA 3985564 → |
XAHC48FBCN1+ furnace: TM9E100C20MP12AHRI reference: 210351757 | 15.20 | 8.10 | 19800 | 2.12 | EPA 3985572 → |
XAFC48FXXN1+TXV+ furnace: TM9E100C20MP12AHRI reference: 210351763 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3985574 → |
XAFC48FBCN1+ furnace: TM9E100C20MP12AHRI reference: 210351769 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3985576 → |
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 →