Guardian / AIR-SOURCE HEAT PUMP

XH648E2S11

LX SERIES

184 published source records · source checked Sep 21, 2026

SEER2 range15.2–16BTU/Wh
HSPF2 range7.8–8.1BTU/Wh
Cooling capacity45,500–48,000BTU/h

Each efficiency range summarizes published EPA records for XH648E2S11. 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 184 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/Wh15.2–16184 / 184
EER2 · BTU/Wh11.7–12184 / 184
HSPF2 · BTU/Wh7.8–8.1184 / 184
Cooling capacity · BTU/h45,500–48,000184 / 184
Heating capacity at 47°F / 8.3°C · BTU/h46,000–50,000184 / 184
Heating capacity at 17°F / −8.3°C · BTU/h31,800–34,000184 / 184
Heating capacity at 5°F / −15°C · BTU/h26,400–27,800184 / 184
COP at 5°F / −15°C2.1–2.38184 / 184
Equipment / loop typeHP - Split System184 / 184
Refrigerant / source-reported GWPR-454B (GWP:470 | Lower GWP)184 / 184
Compressor stagingTwo-stage184 / 184
Connected capabilityNo184 / 184

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
JHE48C5CG2SS1AHRI reference: 21701674416.008.00272002.10EPA 4014187
CTF60D5CHS1+ furnace: RG19120D20MPS1AHRI reference: 21702033616.008.10272002.32EPA 4014552
CTU60D5XHS1+TXV+ furnace: RG19120D20MPS1AHRI reference: 21702033716.008.10272002.32EPA 4014553
CTM60D5CHS1+ furnace: RG19120D20MPS1AHRI reference: 21702034016.008.10276002.30EPA 4014554
CTM60C5CHS1+ furnace: RG19100C20MPS1AHRI reference: 21702034516.008.10278002.28EPA 4014555
CTF60C5CGS1+ furnace: RG19100C20MPS1AHRI reference: 21702034616.008.10274002.22EPA 4014556
CTU60C5XGS1+TXV+ furnace: RG19100C20MPS1AHRI reference: 21702034716.008.10274002.22EPA 4014557
CTF60C5CHS1+ furnace: RG19100C20MPS1AHRI reference: 21702034816.008.10274002.30EPA 4014558
CTF60C5CHS1+ furnace: RG19100C16MPS1AHRI reference: 21702035116.008.10272002.30EPA 4014559
CTM60C5CHS1+ furnace: RG19100C16MPS1AHRI reference: 21702035216.008.10272002.30EPA 4014560
CTM60C5CHS1+ furnace: RG19080C20MPS1AHRI reference: 21702035316.008.10276002.30EPA 4014561
CTF60C5CHS1+ furnace: RG19080C20MPS1AHRI reference: 21702035416.008.10276002.30EPA 4014562
CTF60C5CGS1+ furnace: RG19080C20MPS1AHRI reference: 21702035516.008.10278002.22EPA 4014563
CTU60C5XGS1+TXV+ furnace: RG19080C20MPS1AHRI reference: 21702035616.008.10278002.22EPA 4014564
CTM60C5CHS1+ furnace: RL18120C20MPS1AHRI reference: 21702035716.008.10274002.32EPA 4014565
CTF60C5CHS1+ furnace: RL18120C20MPS1AHRI reference: 21702035816.008.10274002.32EPA 4014566
CTF60C5CGS1+ furnace: RL18120C20MPS1AHRI reference: 21702035916.008.10272002.24EPA 4014567
CTU60C5XGS1+TXV+ furnace: RL18120C20MPS1AHRI reference: 21702036016.008.10272002.24EPA 4014568
CTF60D5CGS1+ furnace: RL18130D20MPS1AHRI reference: 21702036116.008.10274002.28EPA 4014569
CTU60D5XGS1+TXV+ furnace: RL18130D20MPS1AHRI reference: 21702036216.008.10274002.28EPA 4014570

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 →