THF2B42T21
LX SERIES · source records, page 19
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 |
|---|---|---|---|---|---|
XAHD48FBCN1+ furnace: TM9E080C20MP12AHRI reference: 210350397 | 15.20 | 8.10 | 19800 | 2.12 | EPA 3987135 → |
XAFD48FBCN1+ furnace: TM9E080C20MP12AHRI reference: 210350409 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3987142 → |
XAHD48FBCN1+ furnace: TM9Y080C16MP11AHRI reference: 210351715 | 15.20 | 8.10 | 18600 | 2.04 | EPA 3987840 → |
XAHC48FBCN1+ furnace: TM9V080C16MP12AHRI reference: 210362729 | 15.20 | 8.10 | 19300 | 2.06 | EPA 3988490 → |
XAHC48FBCN1+ furnace: TP9C080C16MP13AHRI reference: 210362733 | 15.20 | 8.10 | 19300 | 2.06 | EPA 3988492 → |
XAFD48FBCN1+ furnace: TM9V080C16MP12AHRI reference: 210362749 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3988500 → |
XAFD48FBCN1+ furnace: TP9C080C16MP13AHRI reference: 210362753 | 15.20 | 7.80 | 19300 | 2.00 | EPA 3988505 → |
XAHC48FBCN1+ furnace: TM9V060B12MP12AHRI reference: 210362769 | 15.20 | 8.10 | 18900 | 2.00 | EPA 3988513 → |
XAHC48FBCN1+ furnace: TP9C060B12MP13AHRI reference: 210362773 | 15.20 | 8.10 | 18900 | 2.00 | EPA 3988516 → |
XAFC48FXXN1+TXV+ furnace: TM9E080C20MP12AHRI reference: 210362809 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3988647 → |
XAFC48FBCN1+ furnace: TM9E080C20MP12AHRI reference: 210362815 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3988650 → |
XAFC48FXXN1+TXV+ furnace: TM8Y120C20MP11AHRI reference: 210362857 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3988655 → |
XAFC48FBCN1+ furnace: TM8Y120C20MP11AHRI reference: 210362863 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3988659 → |
XAHD48FBCN1+ furnace: TM8V100C16MP12AHRI reference: 210362911 | 15.20 | 8.10 | 20400 | 2.12 | EPA 3989223 → |
XAHC48FBCN1+ furnace: TM8V080B12MP12AHRI reference: 210362940 | 15.20 | 7.80 | 18900 | 2.00 | EPA 3989229 → |
XAFD48FBCN1+ furnace: TL8E080C16UH11AHRI reference: 210363031 | 15.20 | 8.10 | 19300 | 2.02 | EPA 3989297 → |
XAHD60GBCN1+ furnace: Z8ES130D20SMPS1AHRI reference: 212474938 | 15.20 | 8.10 | 21800 | 2.36 | EPA 3990427 → |
XAHD60GBCN1+ furnace: Z8ES130D20LMPS1AHRI reference: 212474948 | 15.20 | 8.10 | 21800 | 2.36 | EPA 3990431 → |
XAHD60GBCN1+ furnace: Z8ES120C16SMPS1AHRI reference: 212474987 | 15.20 | 8.10 | 22000 | 2.36 | EPA 3990446 → |
XAHC48FBCN1+ furnace: Z9ET100C20SMPS1AHRI reference: 212415410 | 15.20 | 7.80 | 22400 | 2.30 | EPA 3990478 → |
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 →