YH2F42TB21
LX SERIES · source records, page 16
449 published source records · source checked Sep 21, 2026
Each efficiency range summarizes published EPA records for YH2F42TB21. 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 449 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 | 449 / 449 |
| EER2 · BTU/Wh | 11.7–12 | 449 / 449 |
| HSPF2 · BTU/Wh | 7.8–8.1 | 449 / 449 |
| Cooling capacity · BTU/h | 39,500–42,000 | 449 / 449 |
| Heating capacity at 47°F / 8.3°C · BTU/h | 37,400–41,000 | 449 / 449 |
| Heating capacity at 17°F / −8.3°C · BTU/h | 24,200–26,600 | 449 / 449 |
| Heating capacity at 5°F / −15°C · BTU/h | 18,400–22,600 | 449 / 449 |
| COP at 5°F / −15°C | 1.98–2.42 | 449 / 449 |
| Equipment / loop type | HP - Split System | 449 / 449 |
| Refrigerant / source-reported GWP | R-410A (GWP:2088) | 449 / 449 |
| Compressor staging | Two-stage | 449 / 449 |
| Connected capability | No | 449 / 449 |
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: YP9C100C20MP13AHRI reference: 210338445 | 15.20 | 7.80 | 19800 | 2.02 | EPA 3984374 → |
XAFC48FXXN1+TXV+ furnace: TP9C100C20MP13AHRI reference: 210338444 | 15.20 | 7.80 | 19800 | 2.02 | EPA 3984375 → |
XAFC48FBCN1+ furnace: TM8Y100C20MP11AHRI reference: 210338462 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3984376 → |
XAHC48FBCN1+ furnace: TM9E100C20MP12AHRI reference: 210338453 | 15.20 | 8.10 | 19800 | 2.12 | EPA 3984377 → |
XAFC48FXXN1+TXV+ furnace: TM9E100C20MP12AHRI reference: 210338454 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3984378 → |
XAFC48FBCN1+ furnace: TM9E100C20MP12AHRI reference: 210338455 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3984379 → |
XAFC48FXXN1+TXV+ furnace: TM8Y100C20MP11AHRI reference: 210338461 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3984383 → |
XAFC48FXXN1+TXV+ furnace: TM8Y080C16MP11AHRI reference: 210338468 | 15.20 | 8.10 | 19200 | 2.04 | EPA 3984385 → |
XAFC48FXXN1+TXV+ furnace: TM8V100C16MP12AHRI reference: 210338471 | 15.20 | 8.10 | 19200 | 2.02 | EPA 3984386 → |
XAFC48FBCN1+ furnace: TM8Y080C16MP11AHRI reference: 210338469 | 15.20 | 8.10 | 19200 | 2.04 | EPA 3984387 → |
XAFC48FXXN1+TXV+ furnace: TM8V080C16MP12AHRI reference: 210338472 | 15.20 | 8.10 | 19200 | 2.02 | EPA 3984388 → |
XAFC48FBCN1+ furnace: TM8V080C16MP12AHRI reference: 210338480 | 15.20 | 8.10 | 19200 | 2.02 | EPA 3984389 → |
XAFC48FBCN1+ furnace: TM8V100C16MP12AHRI reference: 210338478 | 15.20 | 8.10 | 19200 | 2.02 | EPA 3984390 → |
XAHC48FBCN1+ furnace: TL9E060B12UH11AHRI reference: 210341193 | 15.20 | 7.80 | 18900 | 2.00 | EPA 3984609 → |
XAFC48FXXN1+TXV+ furnace: TL8E100C20UH11AHRI reference: 210341196 | 15.20 | 8.10 | 19600 | 2.02 | EPA 3984611 → |
XAFC48FBCN1+ furnace: TL8E100C20UH11AHRI reference: 210341197 | 15.20 | 8.10 | 19600 | 2.02 | EPA 3984613 → |
XAHC48FBCN1+ furnace: TM9Y100C16MP11AHRI reference: 210339713 | 15.20 | 8.10 | 18400 | 2.02 | EPA 3985064 → |
XAFC48FXXN1+TXV+ furnace: TM9Y100C16MP11AHRI reference: 210339714 | 15.20 | 7.80 | 19600 | 2.02 | EPA 3985065 → |
XAHC48FBCN1+ furnace: TM9Y080C16MP11AHRI reference: 210339718 | 15.20 | 8.10 | 18600 | 2.04 | EPA 3985066 → |
XAFC48FBCN1+ furnace: TM9Y100C16MP11AHRI reference: 210339715 | 15.20 | 7.80 | 19600 | 2.02 | EPA 3985067 → |
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 →