VT-HM I-507141.7 Precautions Pay attention to the product labels/safety instructions printed onsilk screens. Do not try repairing this product unless declared in this manual. Keep away from heat source, such as heater , heat dissipater, orengine casing. Do not insert other items into the slot (if any) of this device.• Keep the ventilation slot ventilated for cooling.•System fault may arise if other items are inserted into this device. Installation: ensure correc t installation according to instructionsfrom the manufactur er with r ecommended installation tools. Ensure ventilation and smoothness according to r elevantventilation standard.