Gree i-Max Gree i-Plus Inverter Same-day installation Prices include tax Wi-Fi feature Fast cooling feature Inverter technology to reduce energy consumption Wide air angle for better area coverage 4-way air distribution for balanced cooling Technology to avoid direct airflow Self-cleaning feature to maintain AC efficiency Operates with environmentally friendly R32 refrigerant gas Long-distance airflow with increased performance up to 10% Operates at 220–230 volts Operating frequency 50 / 60 Hz 5-year compressor warranty 2-year comprehensive warranty