Heat pump model numbers starting 4S

12 certified units whose model number starts 4S, out of every unit in the A to Z. Updated Oct 17, 2026.

One row per certified model number. All 12 in this group are listed; nothing is held back for a second page.

Model numbers starting 4S
Model number	Type	Size class	Brands	Certified pairings
4SHP17LE118P-**A	central	18,000 Btu (1.5-ton)	2	662
4SHP17LE124P-**A	central	24,000 Btu (2-ton)	2	635
4SHP17LE130P-**A	central	30,000 Btu (2.5-ton)	3	667
4SHP17LE136P-**A	central	36,000 Btu (3-ton)	2	908
4SHP17LE142P-**A	central	42,000 Btu (3.5-ton)	2	170
4SHP17LE148P-**A	central	48,000 Btu (4-ton)	2	452
4SHP18LX136P	central	24,000 Btu (2-ton)	2	319
4SHP18LX160P	central	48,000 Btu (4-ton)	2	36
4SHP22LX124P-**A	central	24,000 Btu (2-ton)	2	6
4SHP22LX136P-**A	central	36,000 Btu (3-ton)	2	2
4SHP22LX148P-**A	central	48,000 Btu (4-ton)	2	2
4SHP22LX160P-**A	central	54,000 Btu (4.5-ton)	2	48

Other groups