Mitsubishi Electric Owners Manual - Enlarge page 1 of 4
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JG79A082H02 ENGLISH Model names are indicated in 1-3. When installing multi units, refer to the installation manual of the multi unit for outdoor unit installation. SPLIT-TYPE AIR CONDITIONERS INSTALLATION MANUAL Required Tools for Installation Phillips screwdriver Flare tool for R410A Level Gauge manifold for R410A Scale Vacuum pump for R410A Charge hose for R410A 65 mm hole saw Pipe cutter with reamer Torque wrench Wrench (or spanner) 1.
BEFORE INSTALLATION 1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY · Be sure to read “THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY ” before installing the air conditioner. · After reading this manual, be sure to keep it together with the OPERATING INSTRUCTIONS for future reference. WARNING Do not install the unit by yourself (user). due to the unit falling, or leakage of water. Consult the dealer Perform the installation securely referring to the installation manual. due to the unit falling, or leakage of water. Install the unit securely in a place which can bear the weight of the unit. If the installation location cannot bear the weight of the unit, Perform electrical work according to the installation manual and be sure to use an exclusive circuit. Do not connect other electrical appliances to the circuit. shock. Earth the unit correctly. Do not connect the earth to a gas pipe, water pipe, lightning rod or telephone earth. Defective earthing could cause electric shock. Do not damage the wires by applying excessive pressure with parts or screws. Be sure to cut off the main power in case of setting up the indoor P.C. board or wiring works. Failure to do so could cause electric shock. block connecting sections so the stress of the wires is not applied to the sections. may leak. If gas leaks and accumulates in the area around the unit, it Do not use intermediate connection of the power cord or the extension cord and do not connect many devices to one AC outlet. etc. the installation work. When plugging the power supply plug into the outlet, make sure that there is no dust, clogging, or loose parts in both the outlet and the plug. Make sure that the power supply plug is pushed completely into the outlet. substances will be generated. Use appropriate tools and piping materials for installation. The pressure of R410A is 1.6 times more than R22. Not using appropriate tools or materials and incomplete installation When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes. If the refrigerant pipes are disconnected while the compressor is running and the stop valve is open, air could be drawn When installing the unit, securely connect the refrigerant pipes before starting the compressor. If the compressor is started before the refrigerant pipes are connected and when the stop valve is open, air could be Do not discharge the refrigerant into the atmosphere. If refrigerant leaks during installation, ventilate the room. generated. Check that the refrigerant gas does not leak after installation has been completed. If refrigerant gas leaks indoors, and comes into contact with Attach the electrical cover to the indoor unit and the service panel to the outdoor unit securely.