Panasonic. IMM_ECOI-W_140-210_EN_09.19September 2019Read through the Installation Instructions before you proceed with the installation. In particular, you will need to read underthe “ IMPORTANT ! ” section at the top of the page.INSTALLATION ANDMAINTENANCE MANUAL“Original Language”Heat Pump ChillerThis Heat Pump Chiller uses the refrigerant R410A.Model No.Outdoor UnitClass Standard withoutbuffer tank With buffer tank140 U-140CWNB U-140CWBL150 U-150CWNB U-150CWBL170 U-170CWNB U-170CWBL190 U-190CWNB U-190CWBL210 U-210CWNB U-210CWBL