Environmentally friendly R410A refrigerant. Double-wall construction with galvanized sheet metal liner to protect against microbial growth. Rigid sheet metal inner liner to keep insulation out of the airstream. Sloped drain pan protects against pan corrosion and bacterial growth. Pitched roof design for natural drainage. Scroll compressors for efficiency and durability. Multiple refrigeration circuits for greater turndown … Continue reading Z Millennium R-410A Packaged Unit