Heat pump model numbers starting ZE

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

One row per certified model number. All 29 in this group are listed; nothing is held back for a second page.

Model numbers starting ZE
Model number	Type	Size class	Brands	Certified pairings
ZE-09CB22O	mini-split	9,000 Btu	1	2
ZE-09CB25O	mini-split	9,000 Btu	1	2
ZE-09DB22O	mini-split	9,000 Btu	1	1
ZE-09DB25O	mini-split	9,000 Btu	1	1
ZE-09UB32O	mini-split	9,000 Btu	1	1
ZE-09UH24SCO	mini-split	9,000 Btu	1	1
ZE-12CB25O	mini-split	12,000 Btu (1-ton)	1	2
ZE-12DB25O	mini-split	12,000 Btu (1-ton)	1	1
ZE-12UB32O	mini-split	12,000 Btu (1-ton)	1	1
ZE-12UH24SCO	mini-split	12,000 Btu (1-ton)	1	1
ZE-15UB32O	mini-split	15,000 Btu	1	1
ZE-18CB22O	mini-split	18,000 Btu (1.5-ton)	1	2
ZE-18CB25O	mini-split	18,000 Btu (1.5-ton)	1	2
ZE-18M222SCO	mini-split	18,000 Btu (1.5-ton)	1	2
ZE-24CB25O	mini-split	24,000 Btu (2-ton)	1	2
ZE-24HPB	central	24,000 Btu (2-ton)	1	1
ZE-24M322SCO	mini-split	24,000 Btu (2-ton)	1	2
ZE-36HPB	central	36,000 Btu (3-ton)	1	1
ZE-36M422SCO	mini-split	30,000 Btu (2.5-ton)	1	3
ZE-42M522SCO	mini-split	42,000 Btu (3.5-ton)	1	2
ZE-48HPB	central	48,000 Btu (4-ton)	1	1
ZE-518M225	mini-split	18,000 Btu (1.5-ton)	1	3
ZE-527M325	mini-split	24,000 Btu (2-ton)	1	3
ZE-536M425	mini-split	36,000 Btu (3-ton)	1	3
ZE-542M525	mini-split	42,000 Btu (3.5-ton)	1	3
ZE-624HPA	central	24,000 Btu (2-ton)	1	3
ZE-636HPA	central	30,000 Btu (2.5-ton)	1	3
ZE-648HPA	central	48,000 Btu (4-ton)	1	3
ZE-660HPA	central	54,000 Btu (4.5-ton)	1	3

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