THF2B42T21
LX SERIES · source records, page 16
460 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 460 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 | 460 / 460 |
| EER2 · BTU/Wh | 11.7–12 | 460 / 460 |
| HSPF2 · BTU/Wh | 7.8–8.1 | 460 / 460 |
| Cooling capacity · BTU/h | 39,500–42,000 | 460 / 460 |
| Heating capacity at 47°F / 8.3°C · BTU/h | 37,400–41,000 | 460 / 460 |
| Heating capacity at 17°F / −8.3°C · BTU/h | 24,200–26,600 | 460 / 460 |
| Heating capacity at 5°F / −15°C · BTU/h | 18,400–22,600 | 460 / 460 |
| COP at 5°F / −15°C | 1.98–2.42 | 460 / 460 |
| Equipment / loop type | HP - Split System | 460 / 460 |
| Refrigerant / source-reported GWP | R-410A (GWP:2088) | 460 / 460 |
| Compressor staging | Two-stage | 460 / 460 |
| Connected capability | No | 460 / 460 |
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+JMC20D2SN1AHRI reference: 214799734 | 15.20 | 8.10 | 22200 | 2.40 | EPA 3559778 → |
XAFC60GBCN1+ furnace: Z8ET100C16LMPS1AHRI reference: 212594182 | 15.20 | 7.80 | 20200 | 2.22 | EPA 3560555 → |
XAHC60GBCN1+ furnace: Z8ET100C16LMPS1AHRI reference: 212594677 | 15.20 | 8.10 | 21600 | 2.34 | EPA 3560560 → |
XAUC48FXXN1+TXV+ furnace: TL8E080C16UH11AHRI reference: 210347102 | 15.20 | 8.10 | 19300 | 2.02 | EPA 3720641 → |
XAUC48FXXN1+TXV+ furnace: TM9V100C16MP12AHRI reference: 210347723 | 15.20 | 8.10 | 19500 | 2.06 | EPA 3721280 → |
XAUC48FXXN1+TXV+ furnace: TM9Y080C16MP11AHRI reference: 210347691 | 15.20 | 7.80 | 19600 | 2.00 | EPA 3721502 → |
XAHC48FBCN1+ furnace: TM9Y100C16MP11AHRI reference: 210343762 | 15.20 | 8.10 | 18400 | 2.02 | EPA 3984575 → |
XAFC48FXXN1+TXV+ furnace: TM9Y100C16MP11AHRI reference: 210343768 | 15.20 | 7.80 | 19600 | 2.02 | EPA 3984577 → |
XAFC48FBCN1+ furnace: TM9Y100C16MP11AHRI reference: 210343774 | 15.20 | 7.80 | 19600 | 2.02 | EPA 3984582 → |
XAHC48FBCN1+ furnace: TM9Y080C16MP11AHRI reference: 210343792 | 15.20 | 8.10 | 18600 | 2.04 | EPA 3984587 → |
XAHD48FBCN1+ furnace: TM9Y100C20MP11AHRI reference: 210347673 | 15.20 | 8.10 | 20200 | 2.08 | EPA 3984907 → |
XAFC48FXXN1+TXV+ furnace: TM9Y080C16MP11AHRI reference: 210347679 | 15.20 | 7.80 | 19600 | 2.00 | EPA 3984910 → |
XAFC48FBCN1+ furnace: TM9Y080C16MP11AHRI reference: 210347685 | 15.20 | 7.80 | 19600 | 2.00 | EPA 3984914 → |
XAHC48FBCN1+ furnace: TM9Y060B12MP11AHRI reference: 210347703 | 15.20 | 7.80 | 19200 | 2.00 | EPA 3984918 → |
XAFC48FXXN1+TXV+ furnace: TM9V100C16MP12AHRI reference: 210347709 | 15.20 | 8.10 | 19500 | 2.06 | EPA 3984927 → |
XAFC48FXXN1+TXV+ furnace: TP9C100C16MP13AHRI reference: 210347713 | 15.20 | 8.10 | 19500 | 2.06 | EPA 3984929 → |
XAFC48FXXN1+TXV+ furnace: CP9C100C16MP13AHRI reference: 210347717 | 15.20 | 8.10 | 19500 | 2.06 | EPA 3984930 → |
XAHC48FBCN1+ furnace: TM9Y100C20MP11AHRI reference: 210346658 | 15.20 | 8.10 | 20200 | 2.08 | EPA 3984942 → |
XAFD48FBCN1+ furnace: TM9Y100C16MP11AHRI reference: 210346670 | 15.20 | 7.80 | 19600 | 2.02 | EPA 3984945 → |
XAHD48FBCN1+ furnace: TM9V080C16MP12AHRI reference: 210346726 | 15.20 | 8.10 | 19300 | 2.06 | EPA 3984972 → |
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 →