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Heat pump model numbers starting AO

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

One row per certified model number. All 196 in this group are listed; nothing is held back for a second page.

Model numbers starting AO
Model number Type Size class Brands Certified pairings
AO-09U1R25SS mini-split 9,000 Btu 1 1
AO-09U3R25E mini-split 9,000 Btu 1 1
AO-09U3R25SS mini-split 9,000 Btu 1 1
AO-09U3R26E2 mini-split 9,000 Btu 1 1
AO-09U3R26SS mini-split 9,000 Btu 1 1
AO-09U3T25P mini-split 9,000 Btu 1 2
AO-09U3T25U mini-split 9,000 Btu 1 3
AO-09U3T26P2 mini-split 9,000 Btu 1 2
AO-09U3T26U2 mini-split 9,000 Btu 1 2
AO-12U3T25P mini-split 12,000 Btu (1-ton) 1 2
AO-12U3T25U mini-split 12,000 Btu (1-ton) 1 3
AO-12U3T26P2 mini-split 12,000 Btu (1-ton) 1 2
AO-12U3T26U2 mini-split 12,000 Btu (1-ton) 1 2
AO-15U3T25P mini-split 15,000 Btu 1 2
AO-15U3T26P2 mini-split 15,000 Btu 1 2
AO-18U3R25E mini-split 18,000 Btu (1.5-ton) 1 1
AO-18U3R25SS mini-split 18,000 Btu (1.5-ton) 1 1
AO-18U3R26E2 mini-split 18,000 Btu (1.5-ton) 1 1
AO-18U3R26SS mini-split 18,000 Btu (1.5-ton) 1 1
AO-18U3T25U mini-split 18,000 Btu (1.5-ton) 1 3
AO-18U3T26U2 mini-split 18,000 Btu (1.5-ton) 1 2
AO-24U3T25U mini-split 24,000 Btu (2-ton) 1 3
AO-24U3T26U2 mini-split 24,000 Btu (2-ton) 1 2
AO-30U3R25E mini-split 30,000 Btu (2.5-ton) 1 1
AO-30U3R26E2 mini-split 30,000 Btu (2.5-ton) 1 1
AO21-09N1-B1 mini-split 9,000 Btu 1 1
AO21-09N1-M1 mini-split 9,000 Btu 1 1
AO21-09N2-B1 mini-split 9,000 Btu 1 1
AO21-09N2-M1 mini-split 9,000 Btu 1 1
AO21-18N1-M1 mini-split 18,000 Btu (1.5-ton) 1 1
AO21-18N2-M1 mini-split 18,000 Btu (1.5-ton) 1 1
AO21-24N2-M1 mini-split 24,000 Btu (2-ton) 1 1
AO21-30N1-M1 mini-split 30,000 Btu (2.5-ton) 1 2
AO21-30N2-M1 central 30,000 Btu (2.5-ton) 1 2
AO24-09N1-B1H mini-split 9,000 Btu 1 1
AO24-09N1-M1H mini-split 9,000 Btu 1 1
AO24-09N2-B1H mini-split 9,000 Btu 1 1
AO24-09N2-M1 mini-split 9,000 Btu 1 6
AO24-12N1-B1H mini-split 12,000 Btu (1-ton) 1 1
AO24-12N1-M1H mini-split 12,000 Btu (1-ton) 1 1
AO24-12N2-B1H mini-split 12,000 Btu (1-ton) 1 1
AO24-12N2-M1 mini-split 12,000 Btu (1-ton) 1 6
AO24-18N1-M1H mini-split 18,000 Btu (1.5-ton) 1 1
AO24-18N2-M1 mini-split 18,000 Btu (1.5-ton) 1 8
AO24-24N1-M1H mini-split 24,000 Btu (2-ton) 1 1
AO24-24N2-M1 mini-split 24,000 Btu (2-ton) 1 5
AO25-06N1-M1H mini-split 6,000 Btu 1 1
AO25-06N2-M1H mini-split 6,000 Btu 1 3
AO25-09N1-B1H mini-split 9,000 Btu 1 1
AO25-09N1-M1H mini-split 9,000 Btu 1 1
AO25-09N2-M1H mini-split 9,000 Btu 1 6
AO25-12N1-B1H mini-split 12,000 Btu (1-ton) 1 1
AO25-12N1-M1H mini-split 12,000 Btu (1-ton) 1 1
AO25-12N2-M1H mini-split 12,000 Btu (1-ton) 1 6
AO25-18N1-M1H mini-split 18,000 Btu (1.5-ton) 1 1
AO25-18N2-M1H mini-split 18,000 Btu (1.5-ton) 1 8
AO25-24N1-M1H mini-split 24,000 Btu (2-ton) 1 1
AO25-24N2-M1H mini-split 24,000 Btu (2-ton) 1 5
AO25-33N2-M1H central 30,000 Btu (2.5-ton) 1 2
AO29-09N1-M1H mini-split 9,000 Btu 1 1
AO29-12N1-M1H mini-split 12,000 Btu (1-ton) 1 1
AO29-24N1-M1H mini-split 24,000 Btu (2-ton) 1 1
AO29-33N1-M1H mini-split 30,000 Btu (2.5-ton) 1 1
AO35-06N2-M1H mini-split 6,000 Btu 1 1
AO35-09N2-M1H mini-split 9,000 Btu 1 1
AO35-12N2-M1H mini-split 12,000 Btu (1-ton) 1 1
AO35-18N2-M1H mini-split 18,000 Btu (1.5-ton) 1 1
AOD30-24HFN1-MW central 24,000 Btu (2-ton) 1 1
AOD30-30HFN1-MS0W mini-split 30,000 Btu (2.5-ton) 1 1
AOD30U-30HFN1-M(GA) central 30,000 Btu (2.5-ton) 1 1
AOD30U-30HFN1-MR0(X) central 30,000 Btu (2.5-ton) 1 1
AOD32-24HFN1-MT0W mini-split 24,000 Btu (2-ton) 1 5
AOE30U-48HFN1-MP0(GA) mini-split 48,000 Btu (4-ton) 1 1
AOE31U-36HFN1-M central 36,000 Btu (3-ton) 1 1
AOH-24T3T25U central 24,000 Btu (2-ton) 1 1
AOH-24U3T24P central 24,000 Btu (2-ton) 1 3
AOH-24U3T25U central 24,000 Btu (2-ton) 1 2
AOH-36U3T24P central 30,000 Btu (2.5-ton) 1 3
AOH-48T3T25U central 48,000 Btu (4-ton) 1 1
AOH-48U3T24P central 48,000 Btu (4-ton) 1 3
AOH-48U3T25U central 48,000 Btu (4-ton) 1 2
AOH-60U3T24P central 54,000 Btu (4.5-ton) 1 3
AOODU-1D2S mini-split 18,000 Btu (1.5-ton) 1 1
AOODU-1D3S mini-split 24,000 Btu (2-ton) 1 1
AOODU-1D4S mini-split 36,000 Btu (3-ton) 1 1
AOODU-1D5S mini-split 42,000 Btu (3.5-ton) 1 1
AOU-09U3T25U mini-split 9,000 Btu 1 5
AOU-12U3T25U mini-split 12,000 Btu (1-ton) 1 5
AOU-18U3T25U mini-split 18,000 Btu (1.5-ton) 1 5
AOU-24U3T25U mini-split 24,000 Btu (2-ton) 1 7
AOU-36U3T25U mini-split 36,000 Btu (3-ton) 1 4
AOU-48U3T25U mini-split 48,000 Btu (4-ton) 1 1
AOU-60U3T25U mini-split 54,000 Btu (4.5-ton) 1 1
AOU12RLFF mini-split 12,000 Btu (1-ton) 1 1
AOU12RLFFH mini-split 12,000 Btu (1-ton) 1 1
AOU15RLFF mini-split 15,000 Btu 1 1
AOU15RLFFH mini-split 15,000 Btu 1 1
AOU18RGLX mini-split 18,000 Btu (1.5-ton) 1 2
AOU18RLXFWH mini-split 18,000 Btu (1.5-ton) 1 1
AOU18RLXFZ mini-split 18,000 Btu (1.5-ton) 1 3
AOU18RLXFZH mini-split 18,000 Btu (1.5-ton) 1 3
AOU24RGLX mini-split 24,000 Btu (2-ton) 1 2
AOU24RLXFWH mini-split 24,000 Btu (2-ton) 1 1
AOU24RLXFZ mini-split 24,000 Btu (2-ton) 1 1
AOU24RLXFZH mini-split 24,000 Btu (2-ton) 1 3
AOU30RLXEH mini-split 30,000 Btu (2.5-ton) 1 1
AOU36RLXFZH mini-split 36,000 Btu (3-ton) 1 3
AOU9RLFF mini-split 9,000 Btu 1 1
AOU9RLFFH mini-split 9,000 Btu 1 1
AOUG09LZAH1 mini-split 9,000 Btu 1 2
AOUG09LZAS1 mini-split 9,000 Btu 1 2
AOUG12LZAH1 mini-split 12,000 Btu (1-ton) 1 2
AOUG12LZAS1 mini-split 12,000 Btu (1-ton) 1 2
AOUG15LZAH1 mini-split 15,000 Btu 1 2
AOUG15LZAS1 mini-split 15,000 Btu 1 2
AOUG36LMAS1 mini-split 36,000 Btu (3-ton) 1 1
AOUH09KMAS1 mini-split 9,000 Btu 1 2
AOUH09KPAS1 mini-split 9,000 Btu 1 2
AOUH09KTAP1 mini-split 9,000 Btu 1 4
AOUH09KUAH1 mini-split 9,000 Btu 1 2
AOUH09KUAS1 mini-split 9,000 Btu 1 1
AOUH09KUBS1 mini-split 9,000 Btu 1 2
AOUH09KZAH1 mini-split 9,000 Btu 1 2
AOUH09LEAS1 mini-split 9,000 Btu 1 1
AOUH09LMAH1 mini-split 9,000 Btu 1 1
AOUH09LMAS1 mini-split 9,000 Btu 1 1
AOUH09LPAS1 mini-split 9,000 Btu 1 1
AOUH09LUAS1 mini-split 9,000 Btu 1 1
AOUH12KMAS1 mini-split 12,000 Btu (1-ton) 1 2
AOUH12KPAS1 mini-split 12,000 Btu (1-ton) 1 2
AOUH12KTAP1 mini-split 12,000 Btu (1-ton) 1 4
AOUH12KUAH1 mini-split 12,000 Btu (1-ton) 1 6
AOUH12KUAS1 mini-split 12,000 Btu (1-ton) 1 3
AOUH12KUBS1 mini-split 12,000 Btu (1-ton) 1 6
AOUH12KZAH1 mini-split 12,000 Btu (1-ton) 1 2
AOUH12LMAH1 mini-split 12,000 Btu (1-ton) 1 1
AOUH12LMAS1 mini-split 12,000 Btu (1-ton) 1 1
AOUH12LMBH1 mini-split 12,000 Btu (1-ton) 1 1
AOUH12LMBS1 mini-split 12,000 Btu (1-ton) 1 1
AOUH12LUAS1 mini-split 12,000 Btu (1-ton) 1 2
AOUH15KTAP1 mini-split 15,000 Btu 1 4
AOUH15KZAH1 mini-split 15,000 Btu 1 2
AOUH18KNAS1 mini-split 18,000 Btu (1.5-ton) 1 1
AOUH18KPAS1 mini-split 18,000 Btu (1.5-ton) 1 2
AOUH18KUAH1 mini-split 18,000 Btu (1.5-ton) 1 6
AOUH18KUAS1 mini-split 18,000 Btu (1.5-ton) 1 6
AOUH18KWAH2 mini-split 18,000 Btu (1.5-ton) 1 3
AOUH18KWAS2 mini-split 18,000 Btu (1.5-ton) 1 3
AOUH18KZAH1 mini-split 18,000 Btu (1.5-ton) 1 2
AOUH18LMAS1 mini-split 18,000 Btu (1.5-ton) 1 1
AOUH18LUAS1 mini-split 18,000 Btu (1.5-ton) 1 4
AOUH24KPAS1 mini-split 24,000 Btu (2-ton) 1 2
AOUH24KUAH1 mini-split 24,000 Btu (2-ton) 1 4
AOUH24KUAS1 mini-split 24,000 Btu (2-ton) 1 4
AOUH24KWAH3 mini-split 24,000 Btu (2-ton) 1 3
AOUH24KWAS3 mini-split 24,000 Btu (2-ton) 1 3
AOUH24KZAH1 mini-split 24,000 Btu (2-ton) 1 2
AOUH24LMAS1 mini-split 24,000 Btu (2-ton) 1 1
AOUH24LUAS1 mini-split 24,000 Btu (2-ton) 1 4
AOUH30KPAS1 mini-split 30,000 Btu (2.5-ton) 1 2
AOUH30KUAH1 mini-split 30,000 Btu (2.5-ton) 1 4
AOUH30KUAS1 mini-split 30,000 Btu (2.5-ton) 1 4
AOUH30LUAH1 mini-split 30,000 Btu (2.5-ton) 1 3
AOUH30LUAS1 mini-split 30,000 Btu (2.5-ton) 1 1
AOUH36KPAS1 mini-split 30,000 Btu (2.5-ton) 1 2
AOUH36KUAH1 mini-split 36,000 Btu (3-ton) 1 4
AOUH36KUAS1 mini-split 36,000 Btu (3-ton) 1 4
AOUH36KWAH4 mini-split 36,000 Btu (3-ton) 1 3
AOUH36KWAS4 mini-split 36,000 Btu (3-ton) 1 3
AOUH36KWBH4 mini-split 36,000 Btu (3-ton) 1 3
AOUH42KUAH1 mini-split 42,000 Btu (3.5-ton) 1 2
AOUH42KUAS1 mini-split 42,000 Btu (3.5-ton) 1 2
AOUH45KWAS5 mini-split 42,000 Btu (3.5-ton) 1 3
AOUH45KWBS5 mini-split 42,000 Btu (3.5-ton) 1 3
AOUH48KUAH1 mini-split 48,000 Btu (4-ton) 1 3
AOUH48KUAS1 mini-split 48,000 Btu (4-ton) 1 3
AOUK024SSAN7 mini-split 24,000 Btu (2-ton) 1 3
AOUK036MSAN7 mini-split 36,000 Btu (3-ton) 1 1
AOUK036SSAN7 mini-split 36,000 Btu (3-ton) 1 3
AOUK048MSAN7 mini-split 48,000 Btu (4-ton) 1 1
AOUK048SSAN7 mini-split 48,000 Btu (4-ton) 1 3
AOUK060MSAN7 mini-split 60,000 Btu (5-ton) 1 1
AOX230-09HFN1-BS5W mini-split 9,000 Btu 1 1
AOX230-09HFN1-MT0W mini-split 9,000 Btu 1 1
AOX230-09HFN1-MW5W mini-split 9,000 Btu 1 4
AOX230-12HFN1-MV5W mini-split 12,000 Btu (1-ton) 1 5
AOX330-09HFN1-MY5W mini-split 9,000 Btu 1 2
AOX330-12HFN1-MW5W mini-split 12,000 Btu (1-ton) 1 3
AOX330-18HFN1-MR0 central 18,000 Btu (1.5-ton) 1 1
AOX330U-18HFN1-MR0 central 18,000 Btu (1.5-ton) 1 1
AOX430-17HFN1-MT0W mini-split 15,000 Btu 1 2
AOX430-18HFN1-MT8W mini-split 18,000 Btu (1.5-ton) 1 6
AOX430-18HFN1-MU0W mini-split 18,000 Btu (1.5-ton) 1 1
AOX430-24HFN1-MR0 central 24,000 Btu (2-ton) 1 2
AOX430U-18HFN1-M central 18,000 Btu (1.5-ton) 1 1
AOX430U-24HFN1-MR0 central 24,000 Btu (2-ton) 1 1

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