Lennox / AIR-SOURCE HEAT PUMP

ML17XP1-042-230A**

MERIT ML17XP1 Series · source records, page 4

209 published source records · source checked Sep 21, 2026

SEER2 range15.2–15.6BTU/Wh
HSPF2 range7.8–8.3BTU/Wh
Cooling capacity40,000–42,000BTU/h

Each efficiency range summarizes published EPA records for ML17XP1-042-230A**. 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 209 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/Wh15.2–15.6209 / 209
EER2 · BTU/Wh12.5–13209 / 209
HSPF2 · BTU/Wh7.8–8.3209 / 209
Cooling capacity · BTU/h40,000–42,000209 / 209
Heating capacity at 47°F / 8.3°C · BTU/h37,600–42,000209 / 209
Heating capacity at 17°F / −8.3°C · BTU/h25,000–27,800209 / 209
Heating capacity at 5°F / −15°C · BTU/h10,400–22,000209 / 209
COP at 5°F / −15°C2–2.22209 / 209
Equipment / loop typeHP - Split System209 / 209
Refrigerant / source-reported GWPR-410A (GWP:2088)209 / 209
Compressor stagingSingle stage209 / 209
Connected capabilityNo209 / 209

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
CHX35-42C-**-*+TDR+ furnace: ML180UH110V60C*AHRI reference: 21086992715.407.80202002.04EPA 2467927
CHX35-42C-**-*+TDR+ furnace: SL280UH080NV60C*AHRI reference: 21086992915.407.80202002.04EPA 2468348
CHX35-42C-**-*+TDR+ furnace: SL280UH100NV60C*AHRI reference: 21086993015.407.80200002.00EPA 2468349
CX35-48C+TDR+ furnace: ML193UH110XE48C*AHRI reference: 21086994215.407.80196002.10EPA 2468358
CX35-48C+TDR+ furnace: ML193UH110XE60C*AHRI reference: 21086994315.407.80199002.10EPA 2468360
CX35-48C+TDR+ furnace: ML196UH090XE60C*AHRI reference: 21086994415.407.80199002.10EPA 2468361
CX35-48C+TDR+ furnace: ML180UH110E60C*AHRI reference: 21086993915.407.80196002.10EPA 2468362
CX35-48C+TDR+ furnace: ML296UH110XV60C*AHRI reference: 21086994615.407.80200002.10EPA 2468365
CRX35-48C-**-*+TDR+ furnace: SL280DF110V60C*AHRI reference: 21325805315.408.30220002.14EPA 2839523
C35-49C+TDR+TXV+ furnace: ML180UH110XE60C*AHRI reference: 21294508915.407.80198002.10EPA 3417394
CX35-49C+TDR+ furnace: ML180UH110XE60C*AHRI reference: 21294509115.407.80198002.10EPA 3417395
C35-48C+TDR+TXV+ furnace: ML180UH110XE60C*AHRI reference: 21294511115.407.80196002.10EPA 3417396
CHX35-42B-**-*+TDR+ furnace: ML180UH070XE36B*AHRI reference: 21294511415.407.80202002.12EPA 3417397
CHX35-42B-**-*+TDR+ furnace: ML180UH090XE48B*AHRI reference: 21294511515.407.80200002.12EPA 3417398
CX35-48C+TDR+ furnace: ML180UH110XE60C*AHRI reference: 21294511715.407.80196002.10EPA 3417400
CK40HT-42C-0*+TDR+ furnace: ML180UH110V60C*AHRI reference: 21462420015.407.80202002.04EPA 3473880
CK40HT-42C-0*+TDR+ furnace: SL280UH080NV60C*AHRI reference: 21462421215.407.80202002.04EPA 3473882
CK40HT-42C-0*+TDR+ furnace: SL280UH100NV60C*AHRI reference: 21462421515.407.80200002.00EPA 3473883
CK40CT-49C-0*+TDR+ furnace: ML180UH090E60C*AHRI reference: 21462439615.407.80198002.12EPA 3474276
CK40CT-49C-0*+TDR+ furnace: ML180UH110E60C*AHRI reference: 21462439715.407.80198002.10EPA 3474278

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 →