THF2B42T21
LX SERIES · source records, page 20
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: Z9ET080C16SMPS1AHRI reference: 212415499 | 15.20 | 7.80 | 22200 | 2.30 | EPA 3990483 → |
XAHC60GBCN1+ furnace: Z8ES120C16SMPS1AHRI reference: 212477212 | 15.20 | 8.10 | 22000 | 2.36 | EPA 3990510 → |
XAHC60GBCN1+ furnace: Z8ES120C16LMPS1AHRI reference: 212477217 | 15.20 | 8.10 | 22000 | 2.36 | EPA 3990517 → |
XAFC60GBCN1+ furnace: Z8ES100C20SMPS1AHRI reference: 212477236 | 15.20 | 8.10 | 21200 | 2.26 | EPA 3990519 → |
XAFC60GBCN1+ furnace: Z8ES100C20LMPS1AHRI reference: 212477246 | 15.20 | 8.10 | 21200 | 2.26 | EPA 3990524 → |
XAFC60GBCN1+ furnace: Z8ES100B12SMPS1AHRI reference: 212477272 | 15.20 | 8.10 | 21200 | 2.24 | EPA 3990532 → |
XAFC60GBCN1+ furnace: Z8ES100B12LMPS1AHRI reference: 212477282 | 15.20 | 8.10 | 21200 | 2.24 | EPA 3990535 → |
XAHC60GBCN1+ furnace: Z8ES080B12LMPS1AHRI reference: 212485431 | 15.20 | 8.10 | 21800 | 2.32 | EPA 3990565 → |
XAFD60GBCN1+ furnace: Z8ES100C20LMPS1AHRI reference: 212475053 | 15.20 | 8.10 | 21200 | 2.26 | EPA 3990580 → |
XAHD60GBCN1+ furnace: Z8ES120C16LMPS1AHRI reference: 212474995 | 15.20 | 8.10 | 22000 | 2.36 | EPA 3990584 → |
XAFD60GXXN1+TXV+ furnace: Z8ES100C20SMPS1AHRI reference: 212475009 | 15.20 | 8.10 | 21200 | 2.26 | EPA 3990589 → |
XAFD60GXXN1+TXV+ furnace: Z8ES100C20LMPS1AHRI reference: 212475019 | 15.20 | 8.10 | 21200 | 2.26 | EPA 3990595 → |
XAFD60GBCN1+ furnace: Z8ES100C20SMPS1AHRI reference: 212475033 | 15.20 | 8.10 | 21200 | 2.26 | EPA 3990600 → |
XAFD60GXXN1+TXV+ furnace: Z8ES120C20SMPS1AHRI reference: 212485282 | 15.20 | 8.10 | 21200 | 2.26 | EPA 3990605 → |
XAFD60GXXN1+TXV+ furnace: Z8ES120C20LMPS1AHRI reference: 212485287 | 15.20 | 8.10 | 21200 | 2.26 | EPA 3990610 → |
XAFD60GBCN1+ furnace: Z8ES120C20SMPS1AHRI reference: 212485294 | 15.20 | 8.10 | 21200 | 2.26 | EPA 3990618 → |
XAFD60GBCN1+ furnace: Z8ES120C20LMPS1AHRI reference: 212485304 | 15.20 | 8.10 | 21200 | 2.26 | EPA 3990619 → |
XAHD60GBCN1+ furnace: Z8ES100C20SMPS1AHRI reference: 212485330 | 15.20 | 8.10 | 22000 | 2.34 | EPA 3990625 → |
XAHD60GBCN1+ furnace: Z8ES100C20LMPS1AHRI reference: 212485335 | 15.20 | 8.10 | 22000 | 2.34 | EPA 3990629 → |
XAFD60GXXN1+TXV+ furnace: Z8ES100C16SMPS1AHRI reference: 212485342 | 15.20 | 8.10 | 21000 | 2.28 | EPA 3990632 → |
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 →