Guardian / AIR-SOURCE HEAT PUMP

XH636E2S11

LX SERIES · source records, page 2

133 published source records · source checked Sep 21, 2026

SEER2 range15.2–17BTU/Wh
HSPF2 range8–8.5BTU/Wh
Cooling capacity33,000–35,800BTU/h

Each efficiency range summarizes published EPA records for XH636E2S11. 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 133 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/Wh15.2–17133 / 133
EER2 · BTU/Wh11–12133 / 133
HSPF2 · BTU/Wh8–8.5133 / 133
Cooling capacity · BTU/h33,000–35,800133 / 133
Heating capacity at 47°F / 8.3°C · BTU/h34,000–36,200133 / 133
Heating capacity at 17°F / −8.3°C · BTU/h22,200–23,800133 / 133
Heating capacity at 5°F / −15°C · BTU/h18,000–19,800133 / 133
COP at 5°F / −15°C2–2.48133 / 133
Equipment / loop typeHP - Split System133 / 133
Refrigerant / source-reported GWPR-454B (GWP:470 | Lower GWP)133 / 133
Compressor stagingTwo-stage133 / 133
Connected capabilityNo133 / 133

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
CTF48C5CFS2+ furnace: RL18100C16MPS1AHRI reference: 21852792317.008.50195002.42EPA 4646269
CTU48C5XFS2+TXV+ furnace: RL18080C20MPS1AHRI reference: 21852788117.008.50193002.42EPA 4646311
CTF48C5CFS2+ furnace: RL18080C20MPS1AHRI reference: 21852787117.008.50193002.42EPA 4646321
CTU48C5XFS2+TXV+ furnace: RG19080C20MPS1AHRI reference: 21852786117.008.10194002.40EPA 4646331
CTF48C5CFS2+ furnace: RG19080C20MPS1AHRI reference: 21852785517.008.10194002.40EPA 4646337
CTU48C5XFS2+TXV+ furnace: RG19080C16MPS1AHRI reference: 21852784117.008.10189002.40EPA 4646351
CTF48C5CFS2+ furnace: RG19080C16MPS1AHRI reference: 21852783517.008.10189002.40EPA 4646357
CTU48C5XFS2+TXV+ furnace: RL18120C16MPS1AHRI reference: 21852781317.008.50191002.44EPA 4646379
CTF48C5CFS2+ furnace: RL18120C16MPS1AHRI reference: 21852780317.008.50191002.44EPA 4646389
CTU48C5XFS2+JME12C2SN2+TXVAHRI reference: 21863811917.008.50193002.44EPA 4664484
CTF48C5CFS2+JME12C2SN2AHRI reference: 21863811317.008.50193002.44EPA 4664490
CTU48C5XFS2+JME16C2SN2+TXVAHRI reference: 21863810717.008.10190002.44EPA 4664496
CTF48C5CFS2+JME16C2SN2AHRI reference: 21863810117.008.10190002.44EPA 4664502
CTF36C5CDS1+JMET12CS2N1AHRI reference: 21701760316.008.10188002.36EPA 4013312
CTF36B5CDS1+JMET12BS2N1AHRI reference: 21701760416.008.10186002.36EPA 4013313
CTU36B5XDS1+JMET12BS2N1+TXVAHRI reference: 21701760516.008.10186002.36EPA 4013314
CTF36C5CDS1+JME16C2SN1AHRI reference: 21701760916.008.10185002.40EPA 4013315
CTF36C5CDS1+JME12C2SN1AHRI reference: 21701761616.008.10188002.38EPA 4013322
CTF36C5CDS1+JMET16CS2N1AHRI reference: 21701761916.008.10184002.36EPA 4013323
CTF36B5CDS1+JME12B2SN1AHRI reference: 21701762016.008.10186002.36EPA 4013324

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 →