YH2F42TB21
LX SERIES · source records, page 19
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: TM9Y080C16MP11AHRI reference: 210339067 | 15.20 | 7.80 | 19600 | 2.00 | EPA 3986129 → |
XAHC48FBCN1+ furnace: TM9Y060B12MP11AHRI reference: 210339071 | 15.20 | 7.80 | 19200 | 2.00 | EPA 3986130 → |
XAFC48FBCN1+ furnace: TP9C100C16MP13AHRI reference: 210339077 | 15.20 | 8.10 | 19500 | 2.06 | EPA 3986131 → |
XAFC48FBCN1+ furnace: TM9V100C16MP12AHRI reference: 210339075 | 15.20 | 8.10 | 19500 | 2.06 | EPA 3986132 → |
XAFC48FXXN1+TXV+ furnace: TM9V100C16MP12AHRI reference: 210339072 | 15.20 | 8.10 | 19500 | 2.06 | EPA 3986133 → |
XAFC48FXXN1+TXV+ furnace: TP9C100C16MP13AHRI reference: 210339073 | 15.20 | 8.10 | 19500 | 2.06 | EPA 3986134 → |
XAFC48FXXN1+TXV+ furnace: YP9C100C16MP13AHRI reference: 210339074 | 15.20 | 8.10 | 19500 | 2.06 | EPA 3986135 → |
XAHC48FBCN1+ furnace: TP9C080B12MP13AHRI reference: 210339085 | 15.20 | 8.10 | 19500 | 2.06 | EPA 3986136 → |
XAFC48FBCN1+ furnace: YP9C100C16MP13AHRI reference: 210339079 | 15.20 | 8.10 | 19500 | 2.06 | EPA 3986137 → |
XAHC48FBCN1+ furnace: TM9V080B12MP12AHRI reference: 210339084 | 15.20 | 8.10 | 19500 | 2.06 | EPA 3986138 → |
XAHC48FBCN1+ furnace: YP9C080B12MP13AHRI reference: 210339086 | 15.20 | 8.10 | 19500 | 2.06 | EPA 3986139 → |
XAFD48FBCN1+ furnace: TM9E120D20MP12AHRI reference: 210339088 | 15.20 | 8.10 | 19300 | 2.04 | EPA 3986140 → |
XAHD48FBCN1+ furnace: TM9E100C20MP12AHRI reference: 210339090 | 15.20 | 8.10 | 19800 | 2.12 | EPA 3986141 → |
XAFD48FBCN1+ furnace: TM9E100C20MP12AHRI reference: 210339092 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3986142 → |
XAFC48FXXN1+TXV+ furnace: TL9E080C16UH11AHRI reference: 210339125 | 15.20 | 7.80 | 19600 | 2.00 | EPA 3986165 → |
XAFC48FBCN1+ furnace: TL9E080C16UH11AHRI reference: 210339126 | 15.20 | 7.80 | 19600 | 2.00 | EPA 3986166 → |
XAFD48FBCN1+ furnace: TL8E100C20UH11AHRI reference: 210339776 | 15.20 | 8.10 | 19600 | 2.04 | EPA 3986482 → |
XAFC48FBCN1+ furnace: TL9E100C20UH11AHRI reference: 210339771 | 15.20 | 7.80 | 19900 | 2.02 | EPA 3986483 → |
XAFC48FXXN1+TXV+ furnace: TL9E100C20UH11AHRI reference: 210339770 | 15.20 | 7.80 | 19900 | 2.02 | EPA 3986741 → |
XAFD48FBCN1+ furnace: TM9Y120D20MP11AHRI reference: 210341105 | 15.20 | 7.80 | 19600 | 2.02 | EPA 3987084 → |
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 →