Installation Directions CAUTION! Before connecting any device at the installation site, verify input voltage using a multi meter, Many power supplies and low voltage Transformers operate at higher levels than listed, Any input voltage exceeding 10% of the solenoid rating may cause severe damage to the unit and will void the warranty, eC 1: Attach the face plate to the strike body using the #12.24 Brady Mounting screws as illustrated on page 3, Diagram 2.