Can someone tell me how to fill out a Geothermal system for this credit?
Assuming you mean a ground-coupled water soource heat pump system, you need to list the information for each nominal unit size (0.5 ton, 0.75 ton, etc), the quantity, refrigerant type, and refrigerant charge found in most manufacturer's data. The remainder of the form should automatically complete the properties for the refrigerant and calaulate the refrigerant impact. If the project includes any other refrigeration systems (split systems, commercial refrigeration), these systems must also be listed on the form and the refrigerant charge must include all interconnecting piping.
Cam