English 3ACCESSORIESSELECTING INSTALLATION SITE• Before choosing the installation site, obtain user approval.Caution• When moving the unit during or after unpacking, make sure to lift it by holding its lifting lugs. Do not exert any pressure onother parts, especially the refrigerant piping, drain piping and flange parts.Wear protective gears (gloves and so on) when installing the unit.• If you think the humidity inside the wall might exceed 30°C and RH80%, reinforce the insulation on the unit body.Use glass wool or polyethylene foam as insulation so that the thickness is more than 10mm and fits inside the wall opening.• Optimum air distribution is ensured.• The air passage is not blocked.• Condensate can drain properly.• The wall/floor is strong enough to bear the weight of the indoor unit.• Sufficient clearance for maintenance and servicing is ensured.• Piping between the indoor and outdoor units is within the allowable limits.(Refer to the installation manual for the outdoor unit.)• The indoor unit, outdoor unit, power supply wiring and transmission wiring is at least 1 meter away from televisions and radios. Thisprevents image interference and noise in electrical appliances. (Noise may be generated depending on the conditions under whichthe electric wave is generated, even if a one-meter allowance is maintained.)• The equipment is not intended for use in a potentially explosive atmosphere.a. Items to be checked after completion of work b. Items to be checked at time ofdeliveryItems to be checked If not properly done,what is likely to occurCheck Items to be checked CheckAre the indoor and outdoor unit fixed firmly? The units may drop,vibrate or make noise.Did you explain about operations whileshowing the operation manual to yourcustomer?Is the gas leak test finished? It may result ininsufficient cooling.Did you hand the operation manualand warranty over to your customer?Is the unit fully insulated? Condensate may drip. Did you explain about the way ofmaintaining and cleaning localprocurements (air filter, grille (both airoutlet and suction grille), etc.) to yourcustomer?Does drainage flow smoothly? Condensate may drip. Did you hand manuals of localprocurements (in case equipped) overto your customer?Is the field piping insulated all the way to theconnection inside the unit?Any exposed piping maycause condensation ofwater which can dam-age el. compoDoes the power supply voltage correspondto that shown on the name plate?The unit maymalfunction or the com-ponents burn out.c. Points for explanation aboutoperationsAre wiring and piping correct? The unit maymalfunction or the com-ponents burn out.The items with WARNING and CAUTIONmarks in the operation manual are the items per-taining to possibilities for bodily injury and materialdamage in addition to the general usage of theproduct. Accordingly, it is necessary that you makea full explanation about the described contentsand also ask your customers to read the operationmanual.Is the unit safely grounded? Incomplete groundingmay result in electricshocks.Is wiring size according to specifications? The unit maymalfunction or the com-ponents burn out.Is something blocking the air outlet or inlet ofeither the indoor or outdoor units?It may result ininsufficient cooling.Are refrigerant piping length and additionalrefrigerant charge noted down?The refrigerant charge inthe system is not clear.Also review the “SAFETY PRECAUTIONS”Indoor unit