3. OPERATION RANGEIf the temperature or the humidity is beyond thefollowing conditions, safety devices may work andthe air conditioner may not operate, or sometimes,water may drop from the indoor unit.COOLING [°C]OUTDOORUNITINDOOR UNIT OUTDOORTEMPERA-TURETEMPERA-TUREHUMID-ITYRZQSRZQDB 21 to 35 80%* orbelowDB –5 to 46WB 14 to 25[°C]OUTDOORUNITINDOOR UNIT OUTDOORTEMPERA-TURETEMPERA-TUREHUMID-ITYRZRDB 21 to 35 80%* orbelowDB 21 to 46WB 14 to 25HEATING [°C]OUTDOORUNITINDOOR UNITTEMPERATUREOUTDOORTEMPERATURERZQSRZQDB 15 to 27DB –14 to 21WB –15 to 15.5* To avoid condensation and water dripping out theindoor unit.D B: Dry bulb temperatureWB: Wet bulb temperature4. INSTALLATION SITERegarding places for installation• Is the air conditioner installed at a well-ven-tilated place where there are no obstaclesaround?• 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 beachareac. Where sulfured gas exists such as a hot-springresortd. Where there are considerable voltagefluctuations such as a factory or plante. Vehicles and vesselsf. Where there is much spray of oil and vaporsuch as a cookery, etc.g. Where there are machines generatingelectromagnetic wavesh. Filled with acid and/or alkaline steam or vapor• Is a snow protection measure taken?For details, consult your local dealer about snowprotection hoods, etc.Regarding wiring• All wiring must be performed by a qualifiedpersonnel.To do wiring, ask your local dealer. Never do it byyourself.• 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 themass of the air conditioner with less runningnoises and vibrations.b. A place where the hot wind discharged fromthe air outlet of the outdoor unit and therunning noises do not cause a nuisance toneighbours.• Are you sure that there are no obstacles nearthe air outlet of the outdoor unit?Such obstacles may result in declinedperformance and increased running noises.• If abnormal noises occur in use, stop theoperation of the air conditioner, consult yourlocal dealer.Regarding drainage of drain piping• Is the drain piping carried out properly to en-sure complete drainage?If drain piping is not carried out properly, dirt anddebris may be accumulated in the drain pipingand cause water leakage. If it occurs, stop the airconditioner and consult with your local dealer forassistance.5. OPERATION PROCEDURE• Operating procedure varies with heat pump typeand cooling only type. Contact your local dealer toconfirm your system type.• To protect the air conditioner, turn on the mainpower switch 6 hours before operation.• Do not shut off the power supply during seasonaluse of the air conditioner.This is required in order to activate the airconditioner smoothly.5 English