Trane / AIR-SOURCE HEAT PUMP

4TWV8X36A1

XV18 · XV18I · source records, page 3

129 published source records · source checked Sep 21, 2026

SEER2 range17.5–18BTU/Wh
HSPF2 range7.8–8.5BTU/Wh
Cooling capacity31,800–35,600BTU/h

Each efficiency range summarizes published EPA records for 4TWV8X36A1. 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 129 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 fieldValue / rangeRecords supplying it
SEER2 · BTU/Wh17.5–18129 / 129
EER2 · BTU/Wh11.2–12.2129 / 129
HSPF2 · BTU/Wh7.8–8.5129 / 129
Cooling capacity · BTU/h31,800–35,600129 / 129
Heating capacity at 47°F / 8.3°C · BTU/h28,800–32,800129 / 129
Heating capacity at 17°F / −8.3°C · BTU/h24,200–26,800129 / 129
Heating capacity at 5°F / −15°C · BTU/h19,200–21,000129 / 129
COP at 5°F / −15°C1.67–1.91129 / 129
Equipment / loop typeHP - Split System129 / 129
Refrigerant / source-reported GWPR-410A (GWP:2088)129 / 129
Compressor stagingContinuously variable129 / 129
Connected capabilityNo129 / 129

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 furnaceSEER2BTU/WhHSPF2BTU/WhHeating capacity at 5°F / −15°CBTU/hCOP at 5°F / −15°CRecord & comparison
4PX*CU42BS3+ furnace: S8V2C100M5PCAAHRI reference: 21069188618.008.20204001.83EPA 2473463
4PX*CU42BS3+ furnace: S8V2C080M5PCAAHRI reference: 21069188518.008.20204001.83EPA 2473464
4PX*CU48BS3+ furnace: S8V2C080M5PCAAHRI reference: 21069188818.008.20202001.84EPA 2473466
4PX*CU36BS3+ furnace: S8V2C100M5PCAAHRI reference: 21069188318.008.20204001.80EPA 2473467
4PX*CU48BS3+ furnace: S8V2C100M5PCAAHRI reference: 21069188718.008.20204001.85EPA 2473468
4PX*CD42BS3+ furnace: S8V2C100M5PCAAHRI reference: 21069188118.008.00202001.74EPA 2473471
4PX*BD42BS3+ furnace: S8V2B080M4PCAAHRI reference: 21069187218.007.80206001.74EPA 2473473
4TXCB006DS3+ furnace: S8V2A040M3PCAAHRI reference: 21069189218.008.10199001.80EPA 2473515
4PX*BU36BS3+P0V0A000M30SC+RPAHRI reference: 20780559418.007.80192001.72EPA 2475159
4TXCB006DS3+ furnace: L8V1A040U3VSA+RPAHRI reference: 21065364718.008.00200001.80EPA 2475207
4PX*BU36BS3+ furnace: *UHMB080ACV3AHRI reference: 20752624118.008.20204001.80EPA 2481511
4PX*CU36BS3+ furnace: S9V2C100U4VSA+RPAHRI reference: 20752646818.008.20204001.82EPA 2527426
4TXCC005DS3+ furnace: S9V2C100U4VSA+RPAHRI reference: 20752647618.008.20204001.82EPA 2527433
4TXCB006DS3+P0V0B000M40SC+RPAHRI reference: 21234946018.008.20198001.83EPA 2528456
4PX*BU36BS3+ furnace: *UHMB060ACV3AHRI reference: 20752624418.008.20206001.82EPA 2530733
4PX*BD42BS3+ furnace: S9V2B080D4VSA+RPAHRI reference: 21065359818.008.00204001.74EPA 2530922
4PX*CU42BS3+ furnace: S9V2C100U4VSA+RPAHRI reference: 21065363118.008.50204001.85EPA 2530926
4TXCB006DS3+ furnace: L8V1A060U3VSA+RPAHRI reference: 21065364818.008.00200001.81EPA 2530928
4TXCB006DS3+ furnace: L8V1B080U4VSA+RPAHRI reference: 21065364918.008.20208001.84EPA 2530929
4TXCB004DS3+ furnace: *UHMB060ACV3AHRI reference: 20752628118.008.20206001.82EPA 2531057

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 →