INSTALLATION MANUAL FOR INDOOR UNIT27NOTICEAll Wiring of this installation must comply with NATIONAL, STATE AND LOCAL REGULATIONS. Theseinstructions do not cover all variations for every kind of installation circumstance. Should further information bedesired or should particular problems occur, the matter should be referred to your local distributor.WARNINGBE SURE TO READ THESE INSTRUCTIONS CAREFULLY BEFORE BEGINNING INSTALLATION. FAI-LURE TO FOLLOW THESE INSTRUCTIONS COULD CAUSE SERIOUS INJURY OR DEATH, EQUIPMENTMALFUNCTION AND/OR PROPERTY DAMAGE.(1) Preparation of indoor unitBefore or during the installation of the unit, assemble necessary optional panel etc. depending on thespecific type.(2) Select places for installation satisfying following conditions and at the same time obtain theconsent on the part of your client user.(a) Places where chilled or heated air circulates freely.When the installation height exceeds 3m warmed air stays close to the ceiling. In such cases, suggestyour client users to install air circulators.(b) Places where perfect drainage can be prepared and sufficient drainage.(c) Places free from air disturbances to the suction port and blowout hole of the indoor unit, placeswhere the fire alarm may not malfunction or short-circuit.(d) Places with the environmental dew-point temperature is lower than 28 and the relativehumidity is less than 80 %.(When installing at a place under a high humidity environment, pay sufficient attention to theprevention of dewing such as thermal insulation of the unit. )(e) Ceiling height shall have the following height.(3) Avoid installation and use at those places listed below.(a) Places exposed to oil splashes or steam (e.g. kitchens and machine plants).Installation and use at such places incur deteriorations in the performance or corrosion with theheat exchanger or damage in molded synthetic resin parts.(b) Places where corrosive gas (such as sulfurous acid gas) or inflammable gas (thinner, gasoline,etc) in generated or remains. Installation and use at such places cause corrosion in the heat exchangerand damage in molded synthetic resin parts.(c) Places adjacent to equipment generating electromagnetic waves or high-frequency waves such asin hospitals.Generated noise may cause malfunctioning of the controller.Combinationwith silentpanel 416mm 366mm50 or moreObstacle100 ormore 100 ormore1000 or moreUnit: mmInstallation space36,42 series 24,28 seriesC