THF2B42T21
LX SERIES · source records, page 21
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 |
|---|---|---|---|---|---|
XAFC48FXXN1+TXV+ furnace: TM9E080C20MP12AHRI reference: 210362807 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3988521 → |
XAFC48FBCN1+ furnace: TM9E080C20MP12AHRI reference: 210362813 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3988651 → |
XAFC48FXXN1+TXV+ furnace: TM8Y120C20MP11AHRI reference: 210362855 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3988652 → |
XAFC48FBCN1+ furnace: TM8Y120C20MP11AHRI reference: 210362861 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3988656 → |
XAHD48FBCN1+ furnace: TM8V100C16MP12AHRI reference: 210362909 | 15.20 | 8.10 | 20400 | 2.12 | EPA 3989225 → |
XAHC48FBCN1+ furnace: TM8V080B12MP12AHRI reference: 210362938 | 15.20 | 7.80 | 18900 | 2.00 | EPA 3989227 → |
XAFD48FBCN1+ furnace: TL8E080C16UH11AHRI reference: 210363029 | 15.20 | 8.10 | 19300 | 2.02 | EPA 3989296 → |
XAHD60GBCN1+ furnace: Z8ES130D20SMPS1AHRI reference: 212474934 | 15.20 | 8.10 | 21800 | 2.36 | EPA 3990424 → |
XAHD60GBCN1+ furnace: Z8ES130D20LMPS1AHRI reference: 212474944 | 15.20 | 8.10 | 21800 | 2.36 | EPA 3990429 → |
XAHD60GBCN1+ furnace: Z8ES120C16SMPS1AHRI reference: 212474983 | 15.20 | 8.10 | 22000 | 2.36 | EPA 3990442 → |
XAHD60GBCN1+ furnace: Z8ES120C16LMPS1AHRI reference: 212474993 | 15.20 | 8.10 | 22000 | 2.36 | EPA 3990447 → |
XAHC48FBCN1+ furnace: Z9ET100C20SMPS1AHRI reference: 212415408 | 15.20 | 7.80 | 22400 | 2.30 | EPA 3990481 → |
XAHC48FBCN1+ furnace: Z9ET080C16SMPS1AHRI reference: 212415498 | 15.20 | 7.80 | 22200 | 2.30 | EPA 3990486 → |
XAHC60GBCN1+ furnace: Z8ES120C16SMPS1AHRI reference: 212477211 | 15.20 | 8.10 | 22000 | 2.36 | EPA 3990511 → |
XAHC60GBCN1+ furnace: Z8ES120C16LMPS1AHRI reference: 212477216 | 15.20 | 8.10 | 22000 | 2.36 | EPA 3990514 → |
XAFC60GBCN1+ furnace: Z8ES100C20SMPS1AHRI reference: 212477235 | 15.20 | 8.10 | 21200 | 2.26 | EPA 3990521 → |
XAFC60GBCN1+ furnace: Z8ES100C20LMPS1AHRI reference: 212477245 | 15.20 | 8.10 | 21200 | 2.26 | EPA 3990525 → |
XAFC60GBCN1+ furnace: Z8ES100B12SMPS1AHRI reference: 212477271 | 15.20 | 8.10 | 21200 | 2.24 | EPA 3990531 → |
XAFC60GBCN1+ furnace: Z8ES100B12LMPS1AHRI reference: 212477281 | 15.20 | 8.10 | 21200 | 2.24 | EPA 3990534 → |
XAHC60GBCN1+ furnace: Z8ES080B12LMPS1AHRI reference: 212485430 | 15.20 | 8.10 | 21800 | 2.32 | EPA 3990562 → |
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 →