York / AIR-SOURCE HEAT PUMP

YH660E2S11

LX SERIES · source records, page 3

235 published source records · source checked Sep 21, 2026

SEER2 range15.2–16BTU/Wh
HSPF2 range7.8–8.5BTU/Wh
Cooling capacity52,500–55,000BTU/h

Each efficiency range summarizes published EPA records for YH660E2S11. 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 235 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/Wh15.2–16235 / 235
EER2 · BTU/Wh11–12235 / 235
HSPF2 · BTU/Wh7.8–8.5235 / 235
Cooling capacity · BTU/h52,500–55,000235 / 235
Heating capacity at 47°F / 8.3°C · BTU/h56,000–60,000235 / 235
Heating capacity at 17°F / −8.3°C · BTU/h37,800–39,500235 / 235
Heating capacity at 5°F / −15°C · BTU/h30,000–32,600235 / 235
COP at 5°F / −15°C2–2.38235 / 235
Equipment / loop typeHP - Split System235 / 235
Refrigerant / source-reported GWPR-454B (GWP:470 | Lower GWP)235 / 235
Compressor stagingTwo-stage235 / 235
Connected capabilityNo235 / 235

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
CTM60D5CJS1+ furnace: TP9C120D20MP13AHRI reference: 21799389115.208.00314002.00EPA 4570415
CTM60D5CJS1+ furnace: TM9V120D20MP12AHRI reference: 21799388915.208.00314002.00EPA 4570416
CTF60D5CJS1+ furnace: YP9C120D20MP13AHRI reference: 21799388815.208.00312002.00EPA 4570417
CTF60D5CJS1+ furnace: TP9C120D20MP13AHRI reference: 21799388615.208.00312002.00EPA 4570418
CTF60D5CJS1+ furnace: TM9V120D20MP12AHRI reference: 21799388515.208.00312002.00EPA 4570419
CTM60D5CHS1+ furnace: YP9C120D20MP13AHRI reference: 21799387315.208.00304002.00EPA 4570420
CTM60D5CHS1+ furnace: TP9C120D20MP13AHRI reference: 21799387215.208.00304002.00EPA 4570421
CTM60D5CHS1+ furnace: TM9V120D20MP12AHRI reference: 21799387115.208.00304002.00EPA 4570422
CTU60D5XHS1+TXV+ furnace: YP9C120D20MP13AHRI reference: 21799386915.208.00304002.00EPA 4570423
CTU60D5XHS1+TXV+ furnace: TP9C120D20MP13AHRI reference: 21799386815.208.00304002.00EPA 4570424
CTU60D5XHS1+TXV+ furnace: TM9V120D20MP12AHRI reference: 21799386715.208.00304002.00EPA 4570425
CTF60D5CHS1+ furnace: YP9C120D20MP13AHRI reference: 21799386515.208.00304002.00EPA 4570426
CTF60D5CHS1+ furnace: TP9C120D20MP13AHRI reference: 21799386415.208.00304002.00EPA 4570427
CTF60D5CHS1+ furnace: TM9V120D20MP12AHRI reference: 21799386315.208.00304002.00EPA 4570428
CTM60C5CHS1+ furnace: YP9C100C16MP13AHRI reference: 21799386115.208.00308002.00EPA 4570429
CTM60C5CHS1+ furnace: TP9C100C16MP13AHRI reference: 21799386015.208.00308002.00EPA 4570430
CTM60C5CHS1+ furnace: TM9V100C16MP12AHRI reference: 21799385915.208.00308002.00EPA 4570431
CTM60C5CHS1+ furnace: YP9C100C20MP13AHRI reference: 21799385715.208.00308002.00EPA 4570432
CTM60C5CHS1+ furnace: TP9C100C20MP13AHRI reference: 21799385515.208.00308002.00EPA 4570433
CTM60C5CHS1+ furnace: TM9V100C20MP12AHRI reference: 21799385415.208.00308002.00EPA 4570434

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 →