28SPECIAL PRECAUTIONS— In hard water areas, it is advisable to use a solution to reduce calcium deposit. This liquid can beobtained on request from Serce Centres.— The appliance must be earthed as indicated in the installation instructions. The manufacturer will notaccept responsibility for any damage arising if these safety regulations are not complied with.— If the power supply cable is replaced, use only type HO5VV-F, 3x1 mm2 diameter cables.— Never pull the power lead when moving the appliance.— Ensure that the outdoor end of the exhaust hose is kept obstruction free.— Avoid using the air-conditioner in oily or sulphurous atmospheres or near sources of heat.— Before moving the air-conditioner, empty the water from the collecting tray through the drainage tube.— Never place hot or heavy objects on the appliance.— Clean the air filter once a week.— Avoid the use of extension leads. If it is necessary to lengthen the power lead, consult a qualifiedelectrician.— Transport by car. If it is not possible to transport the appliance in an upright position, then either layit on its right side (opposite side to water container) or on its back, protecting the air outlet with a pieceof cardboard or polystyrene and first removing the exhaust hose.— Do not store the unit in rooms or spaces measuring less than 15m3.