Heat pump model numbers starting LM

21 certified units whose model number starts LM, out of every unit in the A to Z. Updated Oct 17, 2026.

One row per certified model number. All 21 in this group are listed; nothing is held back for a second page.

Model numbers starting LM
Model number	Type	Size class	Brands	Certified pairings
LMHB18DO	mini-split	18,000 Btu (1.5-ton)	1	3
LMHB27DO	mini-split	24,000 Btu (2-ton)	1	4
LMHB36DO	mini-split	36,000 Btu (3-ton)	1	1
LMHB48DO	mini-split	48,000 Btu (4-ton)	1	1
LMU180HHV	mini-split	18,000 Btu (1.5-ton)	1	3
LMU183HV	mini-split	18,000 Btu (1.5-ton)	1	3
LMU240HHV	mini-split	24,000 Btu (2-ton)	1	3
LMU243HV	mini-split	24,000 Btu (2-ton)	1	3
LMU300HHV	mini-split	24,000 Btu (2-ton)	1	3
LMU303HV	mini-split	30,000 Btu (2.5-ton)	1	3
LMU361HHV	mini-split	36,000 Btu (3-ton)	1	3
LMU363HV	mini-split	30,000 Btu (2.5-ton)	1	3
LMU421HHV	mini-split	42,000 Btu (3.5-ton)	1	3
LMU480HHV	mini-split	48,000 Btu (4-ton)	1	3
LMU483HV	mini-split	48,000 Btu (4-ton)	1	3
LMU543HV	mini-split	48,000 Btu (4-ton)	1	3
LMU601HV	mini-split	60,000 Btu (5-ton)	1	3
LMUHB18DO	mini-split	18,000 Btu (1.5-ton)	1	4
LMUHB27DO	mini-split	30,000 Btu (2.5-ton)	1	5
LMUHB36DO	mini-split	36,000 Btu (3-ton)	1	3
LMUHB48DO	mini-split	48,000 Btu (4-ton)	1	4

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