DC Inverter U-Match Series Cassette Type Unit 
2 
PROHIBITED 
(1)  The air conditioner should be grounded to avoid electric shock. Do not connect 
the ground wire to gas pipe, water pipe, lightning arrester or telephone wire. 
(2)  The appliance shall be stored in a well-ventilated area where the room size 
corresponds to the room area as specified for operation. 
(3)  The appliance shall be stored in a room without continuously operating open 
flames (for example an operating gas appliance) and ignition sources (for 
example an operating electric heater). 
(4)  According to federal/state/local laws and regulations, all packages and 
transportation materials, including nails, metal or wooden parts, and plastic 
packing material, must be treated in a safe way. 
 
WARNING 
(1)  Please install according to this instruction manual. Installation must be 
performed in accordance with the requirement of NEC and CEC by authorized 
(2)  Any person who is involved with working on or breaking into a refrigerant 
circuit should hold a current valid certificate from an industry-accredited 
assessment authority, which authorises their competence to handle 
refrigerants safely in accordance with an industry recognized assessment 
(3)  Servicing shall only be performed as recommended by the equipment 
(4)  The appliance shall be installed in accordance with national wiring regulations. 
(5)  The fixed wires connecting to the appliance must be configured with all-pole 
disconnection device under voltage grade III according to wiring rules. 
(6)  Air conditioner should be stored with protective measures against mechanical 
damage caused by accident. 
(7)  If the installation space for air conditioner pipe is too small, adopt a protective 
measure to prevent the pipe from physical damage. 
(8)  During installation, use the specialized accessories and components, 
otherwise water leakage, electric shock or fire hazard may occur.