From inside (document excerpt):
SPLIT-TYPE AIR CONDITIONER 1. CONTENTS THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY . 2 INSTALLATION DIAGRAM & ACCESSORIES 2 SELECTING THE INSTALLATION LOCATION . 3 OUTDOOR UNIT INSTALLATION . 4 INDOOR/OUTDOOR UNITS CONNECTION FINISHING AND TEST RUN INSTALLATION MANUAL Model MXZ-2A52VA utilized HFC R410A IMPORTANT NOTES TO COMPLY WITH THE REQUIREMENTS OF AUSTRALIAN STANDARD AS 3000 S.A.A WIRING RULES, THE ELECTRICAL WIRING REQUIRED BETWEEN THE INDOOR AND OUTDOOR UNITS MUST BE INSTALLED BY A LICENCED ELECTRICAL CONTRACTOR.
Refer to the installation manual of each indoor unit for indoor unit installation. FOR INSTALLER 1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY 2. INSTALLATION DIAGRAM & ACCESSORIES Before installation This installation manual is only for the outdoor unit installation. In installing the indoor units, refer to the installation manual attached to each indoor unit. Any structural alternations necessary for the installation must comply with the local building code requirements. Be sure to read “THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY ” before installing the air conditioner. Be sure to observe the cautions specified here as they include important items related to safety. The indications and meanings are as follows. WARNING: Could lead to death, serious injury, etc. CAUTION: Could lead to serious injury in particular environments when operated incorrectly. After reading this manual, be sure to keep it together with the OPERATING INSTRUCTIONS in a handy place on the customer’s site. WARNING Do not install the unit by yourself (customer). Incomplete installation could cause injury due to fire, electric shock, the unit falling or leakage of water. Consult the dealer from whom you purchased the unit or special installer. Install the unit securely in a place which can bear the weight of the unit. When installed in an insufficient strong place, the unit could fall causing injury. Use the specified wires to connect the indoor and outdoor units securely and attach the wires firmly to the terminal block connecting sections so the stress of the wires is not applied to the sections. Incomplete connecting and fixing could cause fire. Do not use intermediate connection of the power cord or the extension cord and do not connect many devices to one AC outlet. It could cause a fire or an electric shock due to defective contact, defective insulation, exceeding the permissible current, etc. Check that the refrigerant gas due not leak after installation has completed. If refrigerant gas leaks indoors, and comes into contact with the fire of a fan heater, space heater, stove, etc., harmful substances will be generated. Perform the installation securely referring to the installation manual. Incomplete installation could cause a personal injury due to fire, electric shock, the unit falling or leakage of water. Perform electrical work according to the installation manual and be sure to use an exclusive circuit. If the capacity of the power circuit is insufficient or there is insufficient electrical work, it could result in a fire or an electric shock. Attach the electrical cover to the indoor unit and the service panel to the outdoor unit securely. If the electrical cover in the indoor unit and/or the service panel in the outdoor unit are not attached securely, it could result in a fire or an electric shock due to dust water, etc. Be sure to use the part provided or specified parts for the installation work. The use of defective parts could cause an injury due to a fire, an electric shock, the unit falling, leakage of water, etc. Be sure to cut off the main power in case of setting up the indoor electronic control P.C. board or wiring works. It could cause an electric shock. The appliance shall be installed in accordance with national wiring regulations. When installing or relocating the unit, make sure that no substance other than the specified refrigerant (R410A) enters the refrigerant circuit. Any presence of foreign substance such as air can cause abnormal pressure rise or an explosion. K D H C I E J Open as a rule More than 500 mm if the front and both sides are open More than 100 mm More than 200 mm if there are obstacles to both sides More than 100 mm F CAUTION Perform earthing. Do not connect the earth wire to a gas pipe, water pipe, lightning rod or telephone earth wire. Defective earthing could cause an electric shock. Do not install the unit in a place where an inflammable gas leaks.