THF2B42T21
LX SERIES · source records, page 12
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 |
|---|---|---|---|---|---|
XAFC48FXXN1+TXV+ furnace: Z8ES100C16SMPS1AHRI reference: 212416262 | 15.20 | 8.10 | 21000 | 2.22 | EPA 2484629 → |
XAFD48FBCN1+ furnace: Z8ES100C20LMPS1AHRI reference: 212475809 | 15.20 | 8.10 | 21000 | 2.22 | EPA 2484680 → |
XAFC48FBCN1+ furnace: Z8ES100B12SMPS1AHRI reference: 212416292 | 15.20 | 7.80 | 21200 | 2.20 | EPA 2484920 → |
XAHD48FBCN1+ furnace: Z9ET120D20SMPS1AHRI reference: 212415379 | 15.20 | 8.10 | 22600 | 2.32 | EPA 2484954 → |
XAFD48FBCN1+ furnace: Z8ES120C16SMPS1AHRI reference: 212416167 | 15.20 | 8.10 | 21000 | 2.24 | EPA 2485251 → |
XAFD48FBCN1+ furnace: Z8ES100C20SMPS1AHRI reference: 212416212 | 15.20 | 8.10 | 21000 | 2.22 | EPA 2485543 → |
XAFC48FXXN1+TXV+ furnace: Z8ES100C20SMPS1AHRI reference: 212416217 | 15.20 | 8.10 | 21000 | 2.22 | EPA 2485545 → |
XAFC48FBCN1+ furnace: Z8ES100C20SMPS1AHRI reference: 212416222 | 15.20 | 8.10 | 21000 | 2.22 | EPA 2485564 → |
XAHC48FBCN1+ furnace: Z8ET100C16LMPS1AHRI reference: 212415977 | 15.20 | 7.80 | 21800 | 2.36 | EPA 2485581 → |
XAFD48FBCN1+ furnace: Z8ES120C16LMPS1AHRI reference: 212478268 | 15.20 | 8.10 | 21000 | 2.24 | EPA 2485620 → |
XAHC48FXXN1+TXV+ furnace: TM9Y060B12MP11AHRI reference: 210347699 | 15.20 | 7.80 | 19200 | 2.00 | EPA 2785281 → |
XAFC48FBCN1+ furnace: TMLV100C16MP12AHRI reference: 210344894 | 15.20 | 8.10 | 19200 | 2.02 | EPA 2786681 → |
XAFC48FBCN1+ furnace: TPLC100C16MP13AHRI reference: 210344910 | 15.20 | 8.10 | 19200 | 2.02 | EPA 2786685 → |
XAFC48FBCN1+ furnace: TPLC080C16MP13AHRI reference: 210344902 | 15.20 | 8.10 | 19200 | 2.02 | EPA 2786686 → |
XAFD48FBCN1+ furnace: TPLC100C16MP13AHRI reference: 210359158 | 15.20 | 7.80 | 19800 | 2.02 | EPA 2786772 → |
XAFD48FBCN1+ furnace: TPLC080C16MP13AHRI reference: 210359154 | 15.20 | 7.80 | 19800 | 2.02 | EPA 2786774 → |
XAFD48FBCN1+ furnace: TMLV100C16MP12AHRI reference: 210359150 | 15.20 | 7.80 | 19800 | 2.02 | EPA 2786776 → |
XAFD48FXXN1+TXV+ furnace: TL9E100C20UH11AHRI reference: 210347080 | 15.20 | 7.80 | 19900 | 2.04 | EPA 2787483 → |
XAFD48FXXN1+TXV+ furnace: TL9E080C16UH11AHRI reference: 210347088 | 15.20 | 7.80 | 19600 | 2.00 | EPA 2787491 → |
XAFC48FBCN1+ furnace: TMLE120C20MP11AHRI reference: 210343928 | 15.20 | 8.10 | 19600 | 2.04 | EPA 2788353 → |
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 →