THF2B42T21
LX SERIES · source records, page 15
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 |
|---|---|---|---|---|---|
XAFC48FBCN1+JMC17C2SN1AHRI reference: 214799706 | 15.20 | 7.80 | 20600 | 2.20 | EPA 3559750 → |
XAFC48FBCN1+JME12C2SN1AHRI reference: 214799711 | 15.20 | 7.80 | 20200 | 2.20 | EPA 3559756 → |
XAFC48FBCN1+JME16C2SN1AHRI reference: 214799718 | 15.20 | 7.80 | 20200 | 2.20 | EPA 3559761 → |
XAFD48FBCN1+JME18D2SN1AHRI reference: 214799725 | 15.20 | 7.80 | 20800 | 2.22 | EPA 3559769 → |
XAFC48FBCN1+JMC16C2SN1AHRI reference: 214799732 | 15.20 | 7.80 | 20600 | 2.22 | EPA 3559776 → |
XAFC60GBCN1+ furnace: Z8ET100C16LMPS1AHRI reference: 212594185 | 15.20 | 7.80 | 20200 | 2.22 | EPA 3560558 → |
XAHC60GBCN1+ furnace: Z8ET100C16LMPS1AHRI reference: 212594680 | 15.20 | 8.10 | 21600 | 2.34 | EPA 3560563 → |
XAUC48FXXN1+TXV+ furnace: TM9Y080C16MP11AHRI reference: 210347694 | 15.20 | 7.80 | 19600 | 2.00 | EPA 3720634 → |
XAUC48FXXN1+TXV+ furnace: TL8E080C16UH11AHRI reference: 210347105 | 15.20 | 8.10 | 19300 | 2.02 | EPA 3721278 → |
XAUC48FXXN1+TXV+ furnace: TM9V100C16MP12AHRI reference: 210347726 | 15.20 | 8.10 | 19500 | 2.06 | EPA 3721284 → |
XAHC48FBCN1+ furnace: TM9Y100C16MP11AHRI reference: 210343765 | 15.20 | 8.10 | 18400 | 2.02 | EPA 3984574 → |
XAFC48FXXN1+TXV+ furnace: TM9Y100C16MP11AHRI reference: 210343771 | 15.20 | 7.80 | 19600 | 2.02 | EPA 3984576 → |
XAFC48FBCN1+ furnace: TM9Y100C16MP11AHRI reference: 210343777 | 15.20 | 7.80 | 19600 | 2.02 | EPA 3984583 → |
XAHC48FBCN1+ furnace: TM9Y080C16MP11AHRI reference: 210343795 | 15.20 | 8.10 | 18600 | 2.04 | EPA 3984586 → |
XAHD48FBCN1+ furnace: TM9Y100C20MP11AHRI reference: 210347676 | 15.20 | 8.10 | 20200 | 2.08 | EPA 3984905 → |
XAFC48FXXN1+TXV+ furnace: TM9Y080C16MP11AHRI reference: 210347682 | 15.20 | 7.80 | 19600 | 2.00 | EPA 3984912 → |
XAFC48FBCN1+ furnace: TM9Y080C16MP11AHRI reference: 210347688 | 15.20 | 7.80 | 19600 | 2.00 | EPA 3984916 → |
XAHC48FBCN1+ furnace: TM9Y060B12MP11AHRI reference: 210347706 | 15.20 | 7.80 | 19200 | 2.00 | EPA 3984921 → |
XAFC48FXXN1+TXV+ furnace: TM9V100C16MP12AHRI reference: 210347712 | 15.20 | 8.10 | 19500 | 2.06 | EPA 3984923 → |
XAFC48FXXN1+TXV+ furnace: TP9C100C16MP13AHRI reference: 210347716 | 15.20 | 8.10 | 19500 | 2.06 | EPA 3984925 → |
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 →