Heat pump model numbers starting AX

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

One row per certified model number. All 10 in this group are listed; nothing is held back for a second page.

Model numbers starting AX
Model number	Type	Size class	Brands	Certified pairings
AXM19N3H2	central	12,000 Btu (1-ton)	2	2
AXM19R3H2	central	12,000 Btu (1-ton)	2	2
AXP19N3H2	central	12,000 Btu (1-ton)	2	2
AXP19R3H2	central	12,000 Btu (1-ton)	2	2
AXT19N3H2	central	12,000 Btu (1-ton)	2	2
AXT19R3H2	central	12,000 Btu (1-ton)	2	2
AXW19N3H2	central	12,000 Btu (1-ton)	2	2
AXW19R3H2	central	12,000 Btu (1-ton)	2	2
AXY19N3H2	central	12,000 Btu (1-ton)	2	2
AXY19R3H2	central	12,000 Btu (1-ton)	2	2

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