Sum X Heat Pump Manuals

8 Sum X heat pumps with owner guides and verified specifications

Select your Sum X model number below for installation steps, settings, maintenance schedules, troubleshooting and the full specification sheet. Your model number is printed on the rating plate on the side of the outdoor unit.

Sum X heat pumps by model number

Sum X Heat Pump Manuals

Model	Description	Certified
SM-12HFO2-CUHiULTRA	12,000 Btu/h ductless mini-split heat pump	May 2026
SM-12HSM2-CUHiULTRA	12,000 Btu/h ductless mini-split heat pump	May 2026
SM-18HFO2-CUHiULTRA	18,000 Btu/h ductless mini-split heat pump	May 2026
SM-18HSM2-CUHiULTRA	18,000 Btu/h ductless mini-split heat pump	July 2026
SM-24HSM2-CUSM	2-ton split-system heat pump	March 2026
SM-36HSM2-CUSM	2.5-ton split-system heat pump	April 2026
SM-48HSM2-CUSM	4-ton split-system heat pump	March 2026
SM-60HSM2-CUSM	5-ton split-system heat pump	March 2026