Ductless mini split technology is the largest growing sector in the industry. Use this new heat pump training unit to teach the skills necessary to capitalize on the growing electrification of HVAC to reduce global warming. This training unit features a 2-zone mini split heat pump system including high wall mounted unit and ceiling cassette mounted on an aluminum frame. Students can observe the flow of refrigerant at key points within the system through (6) extended-view sight glasses. Advanced troubleshooting features include an electrical fault package via toggle switches, and a louver to adjust air flow to the outdoor unit.