Mechanical Installation 1.2Caution The warranty does not apply to the product defects and failures arisen asa result of improper mounting (in contradiction herewith). Themanufacturer is neither liable for damage caused by theft within an areathat is accessible after the attached electric lock is switched. The productis not designed as a burglar protection device except when used incombination with a standard lock, which has the security function. When the proper mounting instructions are not met, water might get inand destroy the electronics. It is because the intercom circuits are undercontinuous voltage and water infiltration causes an electro-chemicalreaction. The manufacturer’s warranty shall be void for products damagedin this way!Common Mounting PrinciplesTip Select flush mounting where possible to make your product elegantlooking, more vandal resistant and more secure.Caution Stainless steel screws are used for the 2N® Helios IP Uni assembly. Otherscrews than stainless steel ones corrode soon and may aestheticallydeteriorate the surrounding environment! Having removed the front panel, make sure that no dirt gets inside theproduct (especially onto the sealing surface).