42-4 AccessoriesConfirm that the following accessories are supplied.2-5 Main componentsFor main components and function of the main components, refer to theEngineering Data Book.3. BEFORE INSTALLATIONBring in the outdoor unit slowly by holding the lugs provided on the leftand right sides as shown in the figures below.(Take care so that hands and objects do not touch the fin on the rear.)Make sure to use accessories and specified specification parts in theinstallation work.4. SELECTION OF INSTALLATIONLOCATIONThe refrigerant R410A itself is nontoxic, nonflammable and is safe.If the refrigerant should leak however, its concentration mayexceed the allowable limit depending on room size. Due to this itcould be necessary to take measures against leakage. Refer to thechapter “Caution for refrigerant leaks”.(1) Select a proper location satisfying the following requirementswith approval of the customer.• Sufficient ventilation is secured.• Adjacent houses are not annoyed.• The foundation is strong enough to support the weight and with-stand vibrations of the outdoor unit, and the location is safe andallows horizontal installation.• The outdoor unit is exposed to rain as less as possible.• The space for installation and servicing is secured around the out-door unit.• The indoor/outdoor piping length and wiring length are within theallowable range.(2) When installing the outdoor unit in a location affected by strongwind, pay special attention to the following items.• If strong wind whose velocity is 5 m/sec or more blows to the out-door unit from the air outlet side, the air flow rate of the outdoorunit is reduced, the outlet air is sucked again (short-circuit), andthe following effect may be caused:• The capacity is deteriorated.• The adhered frost increases during heating operation.• The operation is stopped by pressure rise.• If excessive strong wind continuously blows from the air outletside of the outdoor unit, the fan may rotate in the reverse directionat high speed, and lead to damage. Install the outdoor unit in ref-erence to the following figures.• Position the air outlet side toward the building wall, fence orwindbreak screen.• Let the air outlet direction face be at right angles to the winddirection.(3) When installing the outdoor unit in a location with heavy snow-fall, pay special attention to the following items:• Prepare strong foundation.• Attach the snow hood (optional accessory).• Remove the suction grill on the rear so that snow will not be accu-mulated in the rear fin.(4) When there is a possibility of short-circuit depending on theambient situation, use the wind direction adjusting plate(optional accessory).(5) The inverter type air conditioner may cause noise in electricproducts.When selecting an installation location, keep sufficient dis-tance from the air conditioner units and wiring to radios, per-sonal computers, stereos, etc. as shown in the figure below.In areas with weak electric waves, keep a distance of 120 in. ormore from the indoor remote controller, etc., put the powercables and connection cables in conduit tubes, and ground theconduit tubes.Clamp Insulation tube Others• Installation manual(3 pcs.) (1 pc.)Outdoor unit LugDischarge grilleIf the suction hole area on the side of the casingis held, the casing may be deformed. Make sureto hold the corner.(Rear view)(Front view)Suctiongrille(Secure the space for installation and servicing.)Strong windStrong windAir outlet40 or moreBranch switchand overcurrentbreakerIndoor remotecontroller60 or more60 or more40 or moreBranch switchand overcurrentbreaker60 or moreIndoor unit(in.)
