2 Safety precautionsDANGER! The front of the heat pump must only be opened byauthorised service technicians.Caution! This product is not intended for persons (includingchildren) with reduced physical, sensory or psychologicalcapacity, or who do not have knowledge or experience, unlesssupervised or they have received instructions on how theapparatus functions from a safety qualified person.Note! Children are not permitted to play with the product.The system can be considered maintenance free but certain checks arenecessary.Before changing the control computer’s settings, first find out whatthese changes mean.Contact your installer for any service work.2.1 Installation and maintenanceDANGER! Only authorized installers may install, operate andcarry out maintenance and repair work on the heat pump.DANGER! Only authorized electricians may modify theelectrical installation.4 – User manual VUBMA902