English 4D B: Dry bulb temperatureWB: Wet bulb temperatureThe setting temperature range of the remote con-troller is 16°C to 32°C.Regarding places for installation• Is the air conditioner installed at a well-ventilatedplace where there are no obstacles around?• Do not use the air conditioner in the followingplaces.a.Filled with much mineral oil such as cutting oilb.Where there is much salt such as a beach areac.Where sulfured gas exists such as a hot-springresortd.Where there are considerable voltage fluctua-tions such as a factory or plante.Vehicles and vesselsf .Where there is much spray of oil and vapor suchas a cookery, etc.g.Where there are machines generating electro-magnetic wavesh.Filled with acid and/or alkaline steam or vapor• Is a snow protection measure taken?For details, consult your dealer.Regarding wiring• All wiring must be performed by an authorizedelectrician.To do wiring, ask your dealer. Never do it by your-self.• Make sure that a separate power supply cir-cuit is provided for this air conditioner andthat all electrical work is carried out by quali-fied personnel according to local laws andregulations.Pay attention to running noises, too• Are the following places selected?a.A place that can sufficiently withstand theweight of the air conditioner with less runningnoises and vibrations.b.A place where the hot wind discharged from theair outlet of the outdoor unit and the runningnoises.• Are you sure that there are no obstacles nearthe air outlet of the outdoor unit?Such obstacles may result in declined perfor-mance and increased running noises.• If abnormal noises occur in use, consult yourdealer.4. INSTALLATION SITERegarding drainage of drain piping• Is the drain piping executed to perform com-plete drainage?If proper drainage is not carried out from the out-door drain pipes during air-conditioning operation,chances are that dust and dirt are clogged in thepipe. This may result in a water leakage from theindoor unit. Under such circumstances, stop theoperation of the air conditioner, and then consultyour dealer or our service station.Refer to figure 1 on page [1]The illustrations in this operating manual corre-spond to the remote control format BRC1C type.Although the display and shape of the buttons onthe BRC1B type are slightly different, they may beoperated in the same manner.5. NAME AND FUNCTION OF EACHSWITCH AND DISPLAY ON THEREMOTE CONTROLLER1ON/OFF BUTTONPress the button and the system will start.Press the button again and the system willstop.2 OPERATION LAMP (RED)The lamp lights up during operation.3DISPLAY “ ” (UNDER CENTRAL-IZED CONTROL)When this display shows, the system isUNDER CENTRALIZED CONTROL.4DISPLAY “ ” “ ” “ ” “ ”(VENTILATION/AIR CLEANING)This display shows that the total heatexchange and the air cleaning unit are inoperation (These are optional accessories).5DISPLAY “ ” “ ” “ ” “ ” “ ”(OPERATION MODE)This display shows the current OPERATIONMODE. For cooling only type, “ ” (Auto)and “ ” (Heating) are not installed.6DISPLAY “ TEST” (INSPECTION/TESTOPERATION)When the INSPECTION/TEST OPERATIONBUTTON is pressed, the display shows thesystem mode is in.7DISPLAY “ ” (PROGRAMMED TIME)This display shows the PROGRAMMED TIMEof the system start or stop.hrhr