Bare coil is only a pre install coil with only copper tube insert to fins without header and “U” bend. Thermal-Matic provides a few options of bare coil. Bare coil options include:
1. Copper tubes insert to die-formed fins without metal frame,
2. Copper tubes insert to die-formed fins come with metal frame,
3. Can be either option 1 & 2 but pre-expend copper tube,
4. Die-formed fin only.