Title: Oso-Nano-VV-Bereder.pdf
! WARNINGThe water temperature in the product may exceed 75°C and could cause scalding. Before emptying, a hot tap should be opened to the max. pressure/ temperature for min. 3 minutes.A) Disconnect the power supply. B) Shut off incoming cold water supply. C) Disconnect the pipe connections to the prod-uct’s cold and hot water feeds.D) Remove the insulation cap and loosen thewall-mount.E) Bring the heater to a drain, sink or other suit- able place and empty the tank by turning the pipe connections upside down. Remember that both the water and the product may be very hot.When the heater is to be put into operationagain, it must be filled with water and the tank vented by opening a hot water tap to the maxi- mum pressure until the water flows in an even stream. The power supply must not be switched on until this is done. Check that the pipe connec- tions for CW and HW are still tight after 3-4 hours of operation.4.5 Handover to end-userTHE INSTALLER MUST: