Heat pump model numbers starting MZ

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

One row per certified model number. All 33 in this group are listed; nothing is held back for a second page.

Model numbers starting MZ
Model number	Type	Size class	Brands	Certified pairings
MZ-COSMO18/O	mini-split	18,000 Btu (1.5-ton)	1	3
MZ-COSMO24/O	mini-split	24,000 Btu (2-ton)	1	3
MZ-COSMO30/O	mini-split	30,000 Btu (2.5-ton)	1	3
MZ-COSMO36/O	mini-split	36,000 Btu (3-ton)	1	3
MZ-M18/O	mini-split	18,000 Btu (1.5-ton)	1	1
MZ-M24/O	mini-split	24,000 Btu (2-ton)	1	1
MZ-M30/O	mini-split	30,000 Btu (2.5-ton)	1	1
MZ-M36/O	mini-split	36,000 Btu (3-ton)	1	1
MZ18H424ZMO	mini-split	18,000 Btu (1.5-ton)	1	3
MZ18H525ZMO	mini-split	18,000 Btu (1.5-ton)	1	3
MZ27H424ZMO	mini-split	24,000 Btu (2-ton)	1	3
MZ27H525ZMO	mini-split	24,000 Btu (2-ton)	1	3
MZ36H424ZMO	mini-split	36,000 Btu (3-ton)	1	1
MZ36H525ZMO	mini-split	36,000 Btu (3-ton)	1	3
MZ48H424ZMO	mini-split	48,000 Btu (4-ton)	1	1
MZ48H525ZMO	mini-split	48,000 Btu (4-ton)	1	3
MZME18WW2P230BAJ	mini-split	18,000 Btu (1.5-ton)	1	2
MZME24WW3P230BBJ	mini-split	24,000 Btu (2-ton)	1	2
MZME36WW4P230BAJ	mini-split	30,000 Btu (2.5-ton)	1	2
MZR454-18CHA2-O	mini-split	18,000 Btu (1.5-ton)	1	1
MZR454-27CHA2-O	mini-split	24,000 Btu (2-ton)	1	1
MZR454-36CHA2-O	mini-split	36,000 Btu (3-ton)	1	1
MZR454-42CHA2-O	mini-split	42,000 Btu (3.5-ton)	1	1
MZUHW18KCH21S2-O	mini-split	18,000 Btu (1.5-ton)	1	1
MZUHW18KR32-O	mini-split	18,000 Btu (1.5-ton)	1	3
MZUHW24KCH21S2-O	mini-split	24,000 Btu (2-ton)	1	1
MZUHW24KR32-O	mini-split	24,000 Btu (2-ton)	1	3
MZUHW30KCH21S2-O	mini-split	30,000 Btu (2.5-ton)	1	1
MZUHW30KR32-O	mini-split	30,000 Btu (2.5-ton)	1	3
MZUHW36KCH21S2-O	mini-split	36,000 Btu (3-ton)	1	1
MZUHW36KR32-O	mini-split	36,000 Btu (3-ton)	1	3
MZUHW42KCH21S2-O	mini-split	36,000 Btu (3-ton)	1	1
MZUHW42KR32-O	mini-split	42,000 Btu (3.5-ton)	1	3

Other groups