THF2B42T21
LX SERIES · source records, page 19
419 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 419 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 | 419 / 419 |
| EER2 · BTU/Wh | 11.7–12 | 419 / 419 |
| HSPF2 · BTU/Wh | 7.8–8.1 | 419 / 419 |
| Cooling capacity · BTU/h | 39,500–42,000 | 419 / 419 |
| Heating capacity at 47°F / 8.3°C · BTU/h | 37,400–41,000 | 419 / 419 |
| Heating capacity at 17°F / −8.3°C · BTU/h | 24,200–26,600 | 419 / 419 |
| Heating capacity at 5°F / −15°C · BTU/h | 18,400–22,600 | 419 / 419 |
| COP at 5°F / −15°C | 1.98–2.42 | 419 / 419 |
| Equipment / loop type | HP - Split System | 419 / 419 |
| Refrigerant / source-reported GWP | R-410A (GWP:2088) | 419 / 419 |
| Compressor staging | Two-stage | 419 / 419 |
| Connected capability | No | 419 / 419 |
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: TM9E100C20MP12AHRI reference: 210851499 | 15.20 | 8.10 | 19800 | 2.12 | EPA 3990083 → |
XAFC48FXXN1+TXV+ furnace: TM9Y080C16MP11AHRI reference: 210851495 | 15.20 | 7.80 | 19600 | 2.00 | EPA 3990084 → |
XAFD48FBCN1+ furnace: TM9V120D20MP12AHRI reference: 210851593 | 15.20 | 8.10 | 19600 | 2.06 | EPA 3990109 → |
XAFC48FBCN1+ furnace: TM9Y100C16MP11AHRI reference: 210851592 | 15.20 | 7.80 | 19600 | 2.02 | EPA 3990110 → |
XAHD48FBCN1+ furnace: TM9V080C16MP12AHRI reference: 210851687 | 15.20 | 8.10 | 19300 | 2.06 | EPA 3990128 → |
XAHD60GBCN1+ furnace: Z8ES130D20SMPS1AHRI reference: 212474940 | 15.20 | 8.10 | 21800 | 2.36 | EPA 3990425 → |
XAHD60GBCN1+ furnace: Z8ES130D20LMPS1AHRI reference: 212474954 | 15.20 | 8.10 | 21800 | 2.36 | EPA 3990433 → |
XAHD60GBCN1+ furnace: Z8ES120C16SMPS1AHRI reference: 212474989 | 15.20 | 8.10 | 22000 | 2.36 | EPA 3990445 → |
XAHC48FBCN1+ furnace: Z9ET100C20SMPS1AHRI reference: 212415411 | 15.20 | 7.80 | 22400 | 2.30 | EPA 3990482 → |
XAHC48FBCN1+ furnace: Z9ET080C16SMPS1AHRI reference: 212415501 | 15.20 | 7.80 | 22200 | 2.30 | EPA 3990487 → |
XAHC60GBCN1+ furnace: Z8ES120C16SMPS1AHRI reference: 212477214 | 15.20 | 8.10 | 22000 | 2.36 | EPA 3990508 → |
XAHC60GBCN1+ furnace: Z8ES120C16LMPS1AHRI reference: 212477221 | 15.20 | 8.10 | 22000 | 2.36 | EPA 3990515 → |
XAFC60GBCN1+ furnace: Z8ES100C20SMPS1AHRI reference: 212477238 | 15.20 | 8.10 | 21200 | 2.26 | EPA 3990520 → |
XAFC60GBCN1+ furnace: Z8ES100C20LMPS1AHRI reference: 212477250 | 15.20 | 8.10 | 21200 | 2.26 | EPA 3990527 → |
XAFC60GBCN1+ furnace: Z8ES100B12SMPS1AHRI reference: 212477274 | 15.20 | 8.10 | 21200 | 2.24 | EPA 3990529 → |
XAHC60GBCN1+ furnace: Z8ES080B12SMPS1AHRI reference: 212485428 | 15.20 | 8.10 | 21800 | 2.32 | EPA 3990566 → |
XAHC60GBCN1+ furnace: Z8ES080B12LMPS1AHRI reference: 212485435 | 15.20 | 8.10 | 21800 | 2.32 | EPA 3990567 → |
XAFD60GBCN1+ furnace: Z8ES100C20LMPS1AHRI reference: 212475061 | 15.20 | 8.10 | 21200 | 2.26 | EPA 3990581 → |
XAHD60GBCN1+ furnace: Z8ES120C16LMPS1AHRI reference: 212475003 | 15.20 | 8.10 | 22000 | 2.36 | EPA 3990586 → |
XAFD60GXXN1+TXV+ furnace: Z8ES100C20SMPS1AHRI reference: 212475013 | 15.20 | 8.10 | 21200 | 2.26 | EPA 3990592 → |
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 →