THF2B42T21
LX SERIES · source records, page 17
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 |
|---|---|---|---|---|---|
XAHD48FBCN1+ furnace: TP9C080C16MP13AHRI reference: 210346731 | 15.20 | 8.10 | 19300 | 2.06 | EPA 3984973 → |
XAHD48FBCN1+ furnace: LP9C080C16MP13AHRI reference: 210346735 | 15.20 | 8.10 | 19300 | 2.06 | EPA 3984978 → |
XAFD48FBCN1+ furnace: TM9V120D20MP12AHRI reference: 210343809 | 15.20 | 8.10 | 19600 | 2.06 | EPA 3985284 → |
XAFD48FBCN1+ furnace: TP9C120D20MP13AHRI reference: 210343813 | 15.20 | 8.10 | 19600 | 2.06 | EPA 3985288 → |
XAFD48FBCN1+ furnace: LP9C120D20MP13AHRI reference: 210343817 | 15.20 | 8.10 | 19600 | 2.06 | EPA 3985292 → |
XAFD48FBCN1+ furnace: TP9C100C20MP13AHRI reference: 210343833 | 15.20 | 7.80 | 19600 | 2.04 | EPA 3985294 → |
XAFD48FBCN1+ furnace: TM9V100C20MP12AHRI reference: 210343829 | 15.20 | 7.80 | 19600 | 2.04 | EPA 3985295 → |
XAFD48FBCN1+ furnace: LP9C100C20MP13AHRI reference: 210343837 | 15.20 | 7.80 | 19600 | 2.04 | EPA 3985414 → |
XAHC48FBCN1+ furnace: TM9E080C20MP12AHRI reference: 210343845 | 15.20 | 8.10 | 19800 | 2.12 | EPA 3985417 → |
XAHD48FBCN1+ furnace: TM8V080C16MP12AHRI reference: 210343901 | 15.20 | 8.10 | 20400 | 2.12 | EPA 3985421 → |
XAFC48FXXN1+TXV+ furnace: TL9E100C20UH11AHRI reference: 210344045 | 15.20 | 7.80 | 19900 | 2.02 | EPA 3985464 → |
XAFC48FBCN1+ furnace: TL9E100C20UH11AHRI reference: 210344049 | 15.20 | 7.80 | 19900 | 2.02 | EPA 3985466 → |
XAFD48FBCN1+ furnace: TL8E100C20UH11AHRI reference: 210344069 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3985476 → |
XAFC48FXXN1+TXV+ furnace: TM9V100C20MP12AHRI reference: 210351719 | 15.20 | 7.80 | 19800 | 2.02 | EPA 3985545 → |
XAFC48FXXN1+TXV+ furnace: TP9C100C20MP13AHRI reference: 210351723 | 15.20 | 7.80 | 19800 | 2.02 | EPA 3985550 → |
XAFC48FBCN1+ furnace: TM9V100C20MP12AHRI reference: 210351729 | 15.20 | 7.80 | 19800 | 2.02 | EPA 3985558 → |
XAFC48FXXN1+TXV+ furnace: LP9C100C20MP13AHRI reference: 210351727 | 15.20 | 7.80 | 19800 | 2.02 | EPA 3985559 → |
XAFC48FBCN1+ furnace: TP9C100C20MP13AHRI reference: 210351737 | 15.20 | 7.80 | 19800 | 2.02 | EPA 3985562 → |
XAFC48FBCN1+ furnace: LP9C100C20MP13AHRI reference: 210351745 | 15.20 | 7.80 | 19800 | 2.02 | EPA 3985565 → |
XAHC48FBCN1+ furnace: TM9E100C20MP12AHRI reference: 210351755 | 15.20 | 8.10 | 19800 | 2.12 | EPA 3985567 → |
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 →