THF2B42T21
LX SERIES · source records, page 14
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 |
|---|---|---|---|---|---|
XAFC60GBCN1+JME12C2SN1AHRI reference: 214799781 | 15.20 | 7.80 | 20600 | 2.26 | EPA 3559437 → |
XAFD60GBCN1+JMC20D2SN1AHRI reference: 214799786 | 15.20 | 8.10 | 21200 | 2.28 | EPA 3559442 → |
XAFC60GBCN1+JMC16C2SN1AHRI reference: 214799791 | 15.20 | 7.80 | 20600 | 2.26 | EPA 3559447 → |
XAFC60GBCN1+JME16C2SN1AHRI reference: 214799798 | 15.20 | 7.80 | 21000 | 2.26 | EPA 3559504 → |
XAFD60GBCN1+JME18D2SN1AHRI reference: 214799805 | 15.20 | 8.10 | 21200 | 2.28 | EPA 3559512 → |
XAHC60GBCN1+JME12C2SN1AHRI reference: 214799812 | 15.20 | 8.10 | 21200 | 2.32 | EPA 3559518 → |
XAHD60GBCN1+JMC20D2SN1AHRI reference: 214799817 | 15.20 | 8.10 | 21400 | 2.34 | EPA 3559523 → |
XAHC60GBCN1+JMC17C2SN1AHRI reference: 214799822 | 15.20 | 8.10 | 21400 | 2.32 | EPA 3559528 → |
XAHC60GBCN1+JMC16C2SN1AHRI reference: 214799827 | 15.20 | 8.10 | 21400 | 2.32 | EPA 3559533 → |
XAHC60GBCN1+JME16C2SN1AHRI reference: 214799834 | 15.20 | 8.10 | 21600 | 2.32 | EPA 3559540 → |
XAHD60GBCN1+JME18D2SN1AHRI reference: 214799841 | 15.20 | 8.10 | 21600 | 2.34 | EPA 3559547 → |
XAFD48FBCN1+JMC20D2SN1AHRI reference: 214799702 | 15.20 | 7.80 | 20400 | 2.22 | EPA 3559745 → |
XAFC48FBCN1+JMC17C2SN1AHRI reference: 214799707 | 15.20 | 7.80 | 20600 | 2.20 | EPA 3559751 → |
XAFC48FBCN1+JME12C2SN1AHRI reference: 214799714 | 15.20 | 7.80 | 20200 | 2.20 | EPA 3559759 → |
XAFC48FBCN1+JME16C2SN1AHRI reference: 214799721 | 15.20 | 7.80 | 20200 | 2.20 | EPA 3559765 → |
XAFD48FBCN1+JME18D2SN1AHRI reference: 214799728 | 15.20 | 7.80 | 20800 | 2.22 | EPA 3559772 → |
XAFC48FBCN1+JMC16C2SN1AHRI reference: 214799733 | 15.20 | 7.80 | 20600 | 2.22 | EPA 3559777 → |
XAFC60GBCN1+ furnace: Z8ET100C16LMPS1AHRI reference: 212594186 | 15.20 | 7.80 | 20200 | 2.22 | EPA 3560559 → |
XAHC60GBCN1+ furnace: Z8ET100C16LMPS1AHRI reference: 212594681 | 15.20 | 8.10 | 21600 | 2.34 | EPA 3560564 → |
XAHD48FBCN1+ furnace: TM9Y080C16MP11AHRI reference: 210846602 | 15.20 | 8.10 | 18600 | 2.04 | EPA 3989189 → |
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 →