Lennox / AIR-SOURCE HEAT PUMP

ML17XP1-042-230A**

MERIT ML17XP1 Series · source records, page 2

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
CRX35-48C-**-*+TDR+ furnace: ML180DF110E60C*AHRI reference: 21325805015.608.30218002.12EPA 2839520
CK40CT-49C-0*+TDR+ furnace: ML180UH110V60C*AHRI reference: 21462439815.607.80199002.10EPA 3474279
CK40CT-49C-0*+TDR+ furnace: SL280UH100NV60C*AHRI reference: 21462441315.607.80199002.10EPA 3474295
CK40CT-48C-0*+TDR+ furnace: EL280UH110E60C*AHRI reference: 21462434615.607.80196002.12EPA 3474614
CK40CT-48C-0*+TDR+ furnace: EL280UH110E48C*AHRI reference: 21462434515.607.80196002.10EPA 3474619
CK40CT-48C-0*+TDR+ furnace: EL280UH110XE60C*AHRI reference: 21462434715.607.80196002.12EPA 3474622
CK40CT-48C-0*+TDR+ furnace: ML180UH110V60C*AHRI reference: 21462435715.607.80197002.12EPA 3474733
CK40CT-48C-0*+TDR+ furnace: SL280UH080NV60C*AHRI reference: 21462436915.607.80197002.10EPA 3474754
CK40CT-48C-0*+TDR+ furnace: SL280UH100NV60C*AHRI reference: 21462437215.607.80197002.12EPA 3474755
CK40DT-48C-0*+TDR+ furnace: ML180DF110E60C*AHRI reference: 21462429715.608.30218002.12EPA 3474847
CK40HT-42B-0*+TDR+ furnace: EL280UH090E48B*AHRI reference: 21462416015.607.80199002.12EPA 3475999
CK40HT-42B-0*+TDR+ furnace: EL280UH090XE48B*AHRI reference: 21462416115.607.80199002.12EPA 3476002
CBK47UHET-042-230-0*AHRI reference: 21486120715.608.30220002.18EPA 3553518
C35-49C+TDR+TXV+ furnace: EL280UH110E48C*AHRI reference: 21004946515.407.80196002.08EPA 2454919
CHX35-48C-**-*+TDR+ furnace: SL280UH100NV60C*AHRI reference: 21004953415.407.80202002.04EPA 2455087
C35-49C+TDR+TXV+ furnace: ML193UH110XE48C*AHRI reference: 21004948315.407.80198002.10EPA 2455101
CX35-49C+TDR+ furnace: SL280UH080NV60C*AHRI reference: 21004959115.407.80199002.10EPA 2457154
CX35-49C+TDR+ furnace: EL280UH110E48C*AHRI reference: 21004956615.407.80196002.08EPA 2459771
CX35-49C+TDR+ furnace: ML193UH110XE48C*AHRI reference: 21006627315.407.80198002.10EPA 2459772
CX35-49C+TDR+ furnace: EL280UH110E60C*AHRI reference: 21004956815.407.80199002.08EPA 2459798

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 →