43 PB
INSTALLATION
Safety Precautions
• Failing to properly secure electrical cover or service panel may result in fire or electric shock.
• Shut off the main power supply before the installation of indoor electronic PCB or wiring.
• Not doing so may cause electric shock.
• Installation wiring shall be in accordance with the state/municipal code requirements.
• Carefully select the outdoor unit installation location in order to avoid contact from people and pets with the electrical components.
• When installing or relocating equipment, make sure that no substance other than the specified refrigerant (R410A) enters the refrigerant circuit.
(Install bi‑flow filter drier on the liquid line at AHU)
• The presence of foreign substances such as air can cause abnormal pressure rise, malfunction, or an explosion.
• Perform proper grounding to NEC requirements.
• Do not connect the earth wire to a gas pipe, water pipe, lightning rod, or telephone earth wire.
• Defective grounding may cause electric shock.
• Do not install the equipment in a location where there is potential for a flammable gas leak.
• Flammable gas leaks in the area surrounding the equipment may cause an explosion.
• Install an earth leakage breaker depending on the installation location.
• Failing to use earth leakage breakers in a humid environment may cause electric shock.
• Perform drainage/piping work securely according to the installation manual.
Safety instructions CAUTION
• Do not let air enter the refrigeration system or discharge refrigerant when moving the air conditioner.
• Children should be supervised to ensure that they do not play with the appliance.
• The appliance shall be installed in accordance with national wiring regulations.
• Service shall only be performed as recommended by the equipment manufacturer.
• The maintenance and repair must be done by qualified personnel.
• Means for disconnection, such as circuit breaker, which can provide full disconnection in all poles, must be incorporated in the fixed wiring in
accordance with the wiring rules.
• It is required to allow the disconnection of the appliance from the supply after installation.
• Ensure the disconnection means can be locked‑out to protect personnel servicing.
• The power supply connection to the appliance and interconnection between units/components shall be performed according to wiring diagrams
and instructions in the product documentation.
• Details of type and rating of circuit breakers / ELB is detailed in this manual.
• Dimensions and space requirements are detailed in this manual.
• Instructions on additional charging of refrigerants are detailed below.
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