Heat pump model numbers starting W4

6 certified units whose model number starts W4, out of every unit in the A to Z. Updated Oct 17, 2026.

One row per certified model number. All 6 in this group are listed; nothing is held back for a second page.

Model numbers starting W4
Model number	Type	Size class	Brands	Certified pairings
W4H5S30KAAA*	central	30,000 Btu (2.5-ton)	2	4
W4H5S60KAAA*	central	54,000 Btu (4.5-ton)	2	2
W4H7T24KAAA*	central	24,000 Btu (2-ton)	2	2
W4H7T36KAAA*	central	36,000 Btu (3-ton)	2	2
W4H7T48KAAA*	central	48,000 Btu (4-ton)	2	2
W4H7T60KAAA*	central	54,000 Btu (4.5-ton)	2	2

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