100Installation ProcedureNoteWARNINGAll wiring of this installation must comply with national, state and local regulations. These instructionsdo not cover all variations for every kind of installation circumstance. Should further information be desired orshould particular problems occur, the matter should be referred to your local distributor.Be sure to read these instructions carefully before beginning installation. Failure to follow these instructions couldcause serious injury or death, equipment malfunction and/or property damage.Before or during the installation of the unit, assemble necessary optional panel etc. depending on the specific type.a. Places where chilled or heated air circulates freely. When the installation height exceeds 3m warmed air staysclose to the ceiling. In such cases, suggest your 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, places where the firealarm may not malfunction or short-circuit.d. Places with the environmental dew-point temperature is lower than 28 and the relative humidity is less than 80 %.(When installing at a place under a high humidity environment, pay sufficient attention to the prevention of dewingsuch as thermal insulation of the unit.)e. Ceiling height shall have the following height.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 the heat exchanger ordamage in molded synthetic resin parts.b. Places where corrosive gas (such as sulfurous acid gas) or inflammable gas (thinner, gasoline etc.) in generatedor remains. Installation and use at such places cause corrosion in the heat exchanger and damage in moldedsynthetic resin parts.c. Places adjacent to equipment generating electromagnetic waves or high-frequency waves such as in hospitals.Generated noise may cause malfunctioning of the controller.Preparation of indoor unitSelect places for installation satisfying following conditions and at the same time obtain the consent on thepart of your client user.Avoid installation and use at those places listed below.Pipe sizeAD90S2SM3FA AD90S2SM4FA AD105S2SM3FAAD105S2SM4FA AD125S2SM3FA AD125S2SM4FAAD140S2SM3FA AD140S2SM4FACombination with silent panel 366mmModel Liquid side Gas sideAD90S2SM3FA AD90S2SM4FAAD105S2SM3FA AD105S2SM4FAAD125S2SM3FA AD125S2SM4FAAD140S2SM3FA AD140S2SM4FAΦ9.52mm Φ15.88mm50mmObstacleInstallation space100mm 100mm