Lennox ML16KP2-048-230A 4 ton heat pump

Brand Lennox ENERGY STAR certified Series Merit ML16KP2 SERIES Updated

Most Efficient
Lennox Heat pump

Model no. ML16KP2-048-230A**

Size
4 tons
SEER2
17
EER2
12
HSPF2
8.1

R-454B

Lennox heat pump from the Merit ML16KP2 SERIES line. Rated 15.5 to 17 SEER2 across 159 certified matchups.

Model

Model number ML16KP2-048-230A**
Product series Merit ML16KP2 SERIES
Stages Two stage

Performance

Nominal size 4 tons
Cooling capacity 48,000 BTU/h
Heating capacity 47,500 BTU/h
SEER2 17
EER2 12
HSPF2 8.1

Cold weather

Heating capacity at 17°F 30,400 BTU/h
Heating capacity at 5°F 24,400 BTU/h
COP at 5°F 2.26

Ratings across matchups

Lowest SEER2 15.5
Highest SEER2 17
Lowest HSPF2 7.8
Highest HSPF2 8.5
Certified matchups 159

Refrigerant

Refrigerant type R-454B

Ratings and warranty

AHRI reference number 218457676
ENERGY STAR certified Yes
ENERGY STAR Most Efficient Yes
On the market since May 13, 2026
ENERGY STAR listed June 9, 2026

Notes

Certified matchups

Top certified matchups for this outdoor unit, from ENERGY STAR data. Ratings depend on the indoor coil or furnace it is paired with.

Indoor unit Furnace SEER2 EER2 HSPF2 AHRI ref.
CBK48MVT-048-230-** 17 12 8.1 218457676
CK40[C,U]T-60D-**+TDR SL280UH135V60D* 16.5 12 8.5 218457789
CK40HT-51/61C-**+TDR EL297UH110XV60C* 16.5 12 8.5 218457785
CK40HT-51/61C-**+TDR EL297UH110XE60C* 16.5 11.7 8.5 218457783
CK40HT-51/61C-**+TDR SL280UH110XV60C* 16.5 12 8.5 218457773
CK40HT-51/61C-**+TDR SL280UH110V60C* 16.5 12 8.5 218457772
CK40HT-51/61C-**+TDR SL280UH100NV60C* 16.5 12 8.5 218457771
CK40HT-51/61C-**+TDR SL280UH090XV60C* 16.5 12 8.5 218457770
CK40HT-51/61C-**+TDR SL280UH090V60C* 16.5 12 8.5 218457769
CK40HT-51/61C-**+TDR ML296UH110XV60C* 16.5 11.7 8.5 218457767
CK40HT-51/61C-**+TDR ML196UH090XE60C* 16.5 11.7 8.5 218457764
CK40HT-51/61C-**+TDR ML193UH110XE60C* 16.5 12 8.5 218457762

147 more matchups are listed in the ENERGY STAR directory.